Does anyone know anything about performance chips for the 2000 DTS? I want to get some horsepower going...i head that turbonator product acctually wroks, my girlfriend's dad is a mechanic...i was surprised to hear that and im going to put better exhaust on it as well. But if there is a chip that will really put me up there. Any ideas, suggestions or know how on the matter?

I purchased a product similar to the Turbonator off of Ebay for a lot less. After installing and running for a month, I've gained about a 3 mpg (about 18%) increase in mostly city driving, and I've noticed a improvement in pickup, so I'm satisfied with the purchase and look to buy one for my SUV.

very good Im going to ahve to pcik that up, i thought the claims were bogus when i first ehard about it. Anyone have any exhaust suggestions? THe northstar can sound beastly with the right exhaust. I want to have a reasonable amount of noise, somethign people wiill hear outside the car and make me wanna drive with the widnows down in the cold new york winter, haha. Itd be hilarious if anyone put cherrybombs on, hahaha those are illegal over here i think. But i was thinking flowmaster or magnaflow...anything to increase the flow and give me some horsepower. Any other suggestions on horsepower gains would be appreciated... I really am curious to see if anyone knows anythign about a computer performance chip though. Also let me know if youve done an aftermarket exhaust and give me soem feedback please.

The turbinator is a joke. It CAN'T work. Save your $$. If you see any gains, you changed something else, no way it is credited to the turbinator or a clone. Look around on this site, there is plenty of talk on it.

As for tuning the N* PCM, I am pondering getting into looking at it very soon. But it will likely take a few months to work it out and I don't have a N* car to play with. (anyone in SE WI that can work with me on this project??)

lol...turbonator.... thats funny....

The low hanging fruit was picked long before a recent model Northstar powered Cadillac/Oldsmobile/Pontiac/Buick was delivered to the dealer. Come on folks, 300 HP potential from 280 cubic inches "stock".

Messing with the fuel delivery requires a piggyback computer. The post 1996 (OBDII) Northstar factory PCM has not been cracked to date and GM has declined to cooperate with any of the aftermarket biggies.

Speed costs money; how fast do you want to go? Check this out if you are serious....


http://caddyinfo.ipbhost.com/index.php?showtopic=8339

Many times tuning isn't to make power, often it only gains you 10 hp. Just like days of yesteryear where we got out the jets/rods, springs and weights for the distributor and then if you were adventurous you got the governor springs/weights and tweaked the modulator to customize the car for your own tastes or mods.

Does anyone even make aftermarket cams or regrind them? Is there ANY aftermarket support?

I am curious to know why no one have messed with it. It would be likely an initally expensive proposition, but might be worth it. But I don't have the vehicle, but am working on the rest of the hardware to do it. And I have a financial backer to help if I need it. That helps a lot!

Another thought is changing PCM to one that is already tunable. Like a LS1 PCM or something similar. It would be some work, but might be the "cheap" way to get killer tunability and then make your own PCM definition to make it all work.

The low hanging fruit was picked long before a recent model Northstar powered Cadillac/Oldsmobile/Pontiac/Buick was delivered to the dealer. Come on folks, 300 HP potential from 280 cubic inches "stock".
Messing with the fuel delivery requires a piggyback computer. The post 1996 (OBDII) Northstar factory PCM has not been cracked to date and GM has declined to cooperate with any of the aftermarket biggies.
Speed costs money; how fast do you want to go? Check this out if you are serious....
http://caddyinfo.ipbhost.com/index.php?showtopic=8339

FEAR ME! I AM THE TURBONATOR! GRRRRRRRR

lol sorry

Rotflmao!

There is (limited) aftermarket Northstar support, for off-road.

A company on the west coast is/was building Northstar powered sand-buggies and I believe they offered different cam grinds and other goodies in a rear wheel drive configuration based on the front wheel drive engine configuration.

Sorry, I can't find the URL.

Add the fuel line magnet and you get another 11.6% milage increase. Put two on and you'll have to siphon off gas once a week. Remember what P.T. Barnum said.

Hey, synthetic is with 15% mpg increase right? And a K&N is 2 mpg. Hey I could go into business selling off my excess fuel....

Thanks to all of you for your mocking replies...much appreciated. I joined this board as a new Cadillac owner to gain some knowledge and help fellow owners with things I've experienced.

What I got is ganged up on by some know-it-all's who instead of just politely stating fact, decided to rub my nose in it. Not just once, but repeatedly.

What I learned is that, like other message boards I visit, is that there is always the little clique of assclowns who like to feel superior to everyone else by belittling others. Nice job dickheads.

But seriously folk, I would love to help you help me get more MPG in town. A couple extra pounds in the tires, driving like grandpa, and and airhog to help breathing is all I've found. Any other ideas?

~ Hey Tombo47: A Little Dip with your Chips!? Here's a Few websites you might find a bit interesting.

~ AssClown, Good one rappaport! Never heard that one before!? I know a few DickHeads that should have that Tattooed on their Forehead!

Skullman {:{}

Fast Chip
http://www.fastchip.com/

Performance International
http://www.performanceintl.com/shop/chips_general.html

Super Chips Inc.
http://www.flatlanderracing.com/superchips_cadillac.html

Westers Garage Performance CHIP and COMPUTER calibrations
http://westersgarage.eidnet.org/scprice.htm

Chip Programming for engine swaps or performance modding
http://fieroaddiction.com/EPROM.html

Car & Driver - Tim Allen Design Cadillac DeVille DTSi
http://www.caranddriver.com/article.asp?section_id=26&article_id=3639

Tim Allen Design Cadillac DeVille DTSi
http://www.timallen.com/interests/cadillac.php

Powertrain Control Solutions
http://www.powertraincontrolsolutions.com/

4.9 PORT FUEL INJECTION V8
http://www.fieroaddiction.com/caddy49a.html

Funco Sandcars Cadillac Northstar V8
http://www.funco-motorsports.com/northstar_v8.htm

My Fleetwood Coupe
http://www.cardomain.com/ride/406096

http://img.photobucket.com/albums/v170/skullmans/MyCoupeDriversSide3.jpg

Thanks to all of you for your mocking replies...much appreciated. I joined this board as a new Cadillac owner to gain some knowledge and help fellow owners with things I've experienced.

What I got is ganged up on by some know-it-all's who instead of just politely stating fact, decided to rub my nose in it. Not just once, but repeatedly.

What I learned is that, like other message boards I visit, is that there is always the little clique of assclowns who like to feel superior to everyone else by belittling others. Nice job dickheads.

Sorry, but on ANY automobile forum I visit, from the ones I regular at like this and the Grand Am club, as well as others I mostly read, like the Jeep site and Tacoma site.... the Turbonator is known to be pure snake oil.

It just CAN'T work...

plus, if there really was a magical device for $30 that gives you 2-5mpg extra.... don't you think GM, as well as everyone else would be using it from the factory?!? even 2mpg, in the world of selling cars can make or break a sale... the benifits from CAFE that a brand would get from the added mileage by just simply sticking a $30 part on and called it a day....

Exactly, GM, Ford, DaimChry would have bought them up years ago and spit them out like bad chew to keep the patents and make it themselves. You know they have tested it themselves just to see what it would/would not do.

Even something that would gain .2 mpg is VERY statistically significant. Even synthetic, some claim better mileage, but honestly, if it did, the Big 3, if not the world'd automakers would all require its use so they could meet CAFE easier. CAFE is a pain in the butt. If they would be able to use lean cruise routines and toss emissions to the wind, we would se significant fuel economy increases. BUT, we can't.

Fuel economy tips.

1. #1 killer of fuel economy is startup acceleration

2. #2 slow down, my 4.9L V8 really perked up if I kept it to the speed limits religiously. It really helped just slowing down. The wind really affected that car, so if there was a headwind I would (if no one around) and I was trying hard to keep up the mpg numbers slow down to 5 under the limit.

3. Proper air pressure, if not a little more. Don't exceed the load rating on the tire, but most are just fine around 35-40 psi. We used to race FWD cars on 50 psi in the front. It is hell on tire wear. My Cad is rated 30 psi, but 35 towing. I typically keep it to the towing recommendation.

4. Keep properly tuned. This can be big. The gradual degradation of mpg and power is so mild you don't notice it statistically. Around 75K miles on dual tipped platinums is the start of significant mpg loss. But 90K you will really notice it. My mom's 97 Deville picked up 3 mpg across the board with new plugs. Unless you are plugging the #'s into fueleconomy.gov to chart it for you or your own Excel and Minitab sheets (we all do this, right??), you won't notice it.

5. CAI. Mine seemed to indicate that it helped around 0.5 mpg most of the time. Statistically it helped more times than not. "Your results may vary"

6. 10% Ethanol. Avoid. This stuff sucks down 10-20% mpg. And the claims of a greener fuel are still under question. Politicians have too much in this to trust any data from it. Theory is good, but real practice.

7. Proper alignment, with toe zero as you drive, not necessarily what GM spec'd. If you can properly preload front tires to the point that it is around the same forces as you drive down the road, you want zero toe at that point. Else keep GM specs, they HAVE to be as close as you are going to get....

8. Lower cars should get better mileage, but if you are low enough you are always slowing down to keep from hittings things, you will negate any aerodynamic mpg savings very quickly. 1-2 inches lower is likely just fine.

9. The 94-96 LT1's were rated at 17/26 highway with 2.56's, 17/25 with 2.93's and 17/23 with 3.42's. Gearing affects mileage. Note that the LT1 powered cars are the heaviest GM cars in a LONG time, and are the heaviest Cadillacs since 1976, and also get some of the best mileage of any of the Cadillacs, including current ones! Weight isn't the biggest factor in mileage, but it has an effect. Takes more power to get the car in motion. Gentle accelerations are important.

Check out my link on it, I posted some of my results, but not too many people seemed to take much note, or if they did, they didn't comment. Which is fine, it is just one of my studies....

http://www.cadillacforums.com/forums/showthread.php?t=38445&highlight=mpg

http://www.cadillacforums.com/forums/showthread.php?t=50579&highlight=mpg

http://www.cadillacforums.com/forums/showthread.php?t=51616&highlight=mpg (This one has the most info, graphs on stuff)

I keep hearing it can't work but no one says why. Let me tell you all something. I changed absolutely nothing about my driving habits in the past month since I installed this. I take my kids to school and pick them up every day, Monday thru Friday. I've made one trip to the dealer, which I also made prior to install. I started with the same type of gas, the same amount of gas. I've added nothing to the car, nor taking anything away that would affect mpg. Identical drivng habits and miles.

And I've gained 3 mpg. So rip me if you want. Call it snake oil or a placebo. Even if it's not due to the turbonator-like product I have, I don't care. I am getting better gas mileage. So are six of my friends who use and recommended the product, one who is a certified GM mechanic. So are 4600+ people on Ebay who have bought the same device and haven't felt the need to leave negative feedback.

chrfab.com

Ratchet up the credit limit on your bank cards, then "Get in, sit down, shut up and hold on."


Oh, and the Turbonator? - please spare us.

Look, if you like the thing, then use it. Don't complain, cry and call names when we tell you otherwise....

When you are done getting 3mpg from a $30 Turbonator, check out this here, for just $7.99 you can add 20HP to your car! It's on eBay, it must be true!

http://cgi.ebay.com/ebaymotors/Cold-Air-Intake-MOD-CADILLAC-DEVILLE-20HP_W0QQcmdZViewItemQQcategoryZ33597QQitemZ802438 9261QQrdZ1QQsspagenameZWD1V

BTW if you really wanted to try the above (snake oil) instead of spending $10 after shipping, go to Radio Shack and get a 30cent resistor (since thats all it is) and it makes the computer think its always 32* F outside.... on paper it can just barely work, real world results show it does more harm then good. 30cents for 10 bucks for a cheap thrill, you decide :)

Maybe if you stick 2 or more turbonators in a row it'll add like 10mpg! I wonder if it'll work on hybrid cars when operating under electric power too :) never know....

I keep hearing it can't work but no one says why. Let me tell you all something. I changed absolutely nothing about my driving habits in the past month since I installed this. I take my kids to school and pick them up every day, Monday thru Friday. I've made one trip to the dealer, which I also made prior to install. I started with the same type of gas, the same amount of gas. I've added nothing to the car, nor taking anything away that would affect mpg. Identical drivng habits and miles.

And I've gained 3 mpg. So rip me if you want. Call it snake oil or a placebo. Even if it's not due to the turbonator-like product I have, I don't care. I am getting better gas mileage. So are six of my friends who use and recommended the product, one who is a certified GM mechanic. So are 4600+ people on Ebay who have bought the same device and haven't felt the need to leave negative feedback.

I hate to break it to you man, but it is a physical near-impossibility for this "turbonator" to have any effect whatsoever. This "swirling action" they tout would be completely negated once it made it past the twists and turns in the intake. If you could gain any horsepower or mileage from 25 cents worth of sheet metal, why wouldn't every auto manufacturer put them in the intake? What would stop them from putting those things in every intake at the factory? If they could gain something from "swirling air," every one of them would use them. But guess how many come as standard or optional equipment? Zero. Not even the dealers are dumb enough to try and sell you one of those things, and they'll take your money for anything they can.

Think of it like this. If the air is going in a straight line and this device makes it swirl, that means the device had to move the air, right? It takes energy to move the air from straight to swirling. Since the device itself is just a 25 cent piece of sheet metal, it has no way to impart energy to the air in order to swirl it. That means the energy came from the moving air, and in English that means the turbonator SLOWS DOWN the air moving into the intake and acts as a restriction. Your turbonator makes somebody rich, but it does nothing for your car, especially not if it's before the MAF. The honeycomb screen will straighten out most of the swirling action anyway. The fact that thousands of people have bought them from eBay doesn't mean anything about its effectiveness. It just means that old P. T. Barnum was right. If you want to gain something from these devices, start selling them.

thanks for the feedback everyone. i dont know anything about intakes or exhaust...i just kow the names of parts and where msot of them are. are there any HP gains with better exhaust? And what else, an air intake? Whats the ebst brands and ahs anyone done this already? I want some better exhaust because the northstar can barely breathe and it pisses me off to not hear anything. my 92' eldo sounded pretty snarly but the N* is real quiet. I heard it with magnaflows on and it sounded pretty mean. I hear alot of N*'s have Corsa, is that any better? LEt me know what will give me the best amount of flow and what aprts i should buy. Thanks gents


-tomBo

Come on Rappaport. You can't possibly be serious. Sorry that you took offense to the light hearted jokes but, the claims are so rediculous that you can't expect anything else. You want to know why it can't work? Because putting an obstruction in the intake can do nothing but slow down the air flow. Remember, a gasoline engine is basically an air pump. Swirling the air? What good does that do? After it gets swirled, it gets stopped by the throttle plate. When the air gets in the manifold, it has to make 90 degree turns and go through intake valves. What do you invision, little tornados in there, working their way toward 16 different intake valves? If these things really produced 20-35 more HP and 24-31% better fuel economy (as claimed by the Turbonator web site), please explain why GM did not put them in the Northstar? Do you think they said, nah, 300 HP and 25 MPG is all we want. People won't buy this car if we put too much HP in it and get too good of fuel economy, or do you think that their highly educated, highly paid engineers are just not smart enough to figure it out? These things have been proven to be worthless in test after test. A little common sense is all that is needed to figure out, "if it sounds too good to be true, it probably is", is more than applicable in this instance.
As for your results, well, I will only say that there is a logical explanation and it is not the Turbonator. Also I have to say is that no GM certified mechanic in his right mind would publicly recommend this type of junk, especially in his shop. He would be ridiculed to no end. If he does recommend it, his credability is worthless and should not be certified. He above all others, should know better.
I guess to each his own applies here. Please don't take this as a personal attack. It is an attack on the Turbonator, the Tornado, the Fuel Line Magnet and all the other junk out there. It just bothers me to no end to see people get taken by these scam artists. So much for truth in advertizing. :rant2:

Oh, BTW, after years of exhaustive research, I've just received my patent for a Solar-Powered Flashlight. Never again will you have to buy and replace those pesky batteries! Never again will you have to wait while your flashlight "charges up" before you can go out there and use it with complete confidence!!

Can anyone tell me the terms and conditions that I have to abide by to post it on EBAY?

speaking of exhaustive......

SOUNDS LIKE YOU ARE REALLY LOOKING TO GET THE BEST FOR YOU MONEY. yOU SHOULD CHECK INTO CORSA COMPLETE EXHAUST, FROM HEADER TO TIP.

thanks for the feedback everyone. i dont know anything about intakes or exhaust...i just kow the names of parts and where msot of them are. are there any HP gains with better exhaust? And what else, an air intake? Whats the ebst brands and ahs anyone done this already? I want some better exhaust because the northstar can barely breathe and it pisses me off to not hear anything. my 92' eldo sounded pretty snarly but the N* is real quiet. I heard it with magnaflows on and it sounded pretty mean. I hear alot of N*'s have Corsa, is that any better? LEt me know what will give me the best amount of flow and what aprts i should buy. Thanks gents


-tomBo


Take a listen for yourself, TurboJimmy has the Corsa setup.

http://cadillacforums.com/forums/showpost.php?p=298320&postcount=7

http://cadillacforums.com/forums/showpost.php?p=483856&postcount=7

EDIT: Damn, just noticed your in Levittown! Cool stuff, you might have seen me around!

thats sounds good, the magnaflows i heard were a deeper burlier sound...i dont know whcih one i like more. Which parts do i need to buy?



haha my man im in levittown NY not PA. If i saw your car id prolyl shit myself thought, thats a nice vehicle.

I hate to break it to you man, but it is a physical near-impossibility for this "turbonator" to have any effect whatsoever. This "swirling action" they tout would be completely negated once it made it past the twists and turns in the intake. If you could gain any horsepower or mileage from 25 cents worth of sheet metal, why wouldn't every auto manufacturer put them in the intake? What would stop them from putting those things in every intake at the factory? If they could gain something from "swirling air," every one of them would use them. But guess how many come as standard or optional equipment? Zero. Not even the dealers are dumb enough to try and sell you one of those things, and they'll take your money for anything they can.

Think of it like this. If the air is going in a straight line and this device makes it swirl, that means the device had to move the air, right? It takes energy to move the air from straight to swirling. Since the device itself is just a 25 cent piece of sheet metal, it has no way to impart energy to the air in order to swirl it. That means the energy came from the moving air, and in English that means the turbonator SLOWS DOWN the air moving into the intake and acts as a restriction. Your turbonator makes somebody rich, but it does nothing for your car, especially not if it's before the MAF. The honeycomb screen will straighten out most of the swirling action anyway. The fact that thousands of people have bought them from eBay doesn't mean anything about its effectiveness. It just means that old P. T. Barnum was right. If you want to gain something from these devices, start selling them.

Don't worry....some people don't get it....

but yeah, it can't swirl the air as it says. First, air swirling in the intake? come on... like the air is going to remain swirlingthru the whole thing... what about the throttle body? big ol' butterfly valve probably get in the way of things.... Plus, its would just swirl air, since the fuel dosn't come into play until way beyond that.

Swirling in itself can, and does help though. GM has their Vortec truck engines. More then just a fancy name, the intake/heads are designed to promote a better mix of air and fuel thru swirling....

Ford also does it, they started it in the early 90's with their "HSC" engines (Temp etc...) it literally means High Swirl Chamber.... and is similar to GM's Vortec... I am sure the other guys do it as well.

But the Turbonator... lol.... usually you can tell a product is a joke just by its packaging or name... Turbonator? obviosuly designed to get unknowing people to buy the product.

Oh, BTW, after years of exhaustive research, I've just received my patent for a Solar-Powered Flashlight. Never again will you have to buy and replace those pesky batteries! Never again will you have to wait while your flashlight "charges up" before you can go out there and use it with complete confidence!!
Can anyone tell me the terms and conditions that I have to abide by to post it on EBAY?

No problem....

ebay.com

make an account with a cool name

make a listing

that simple :)

SOUNDS LIKE YOU ARE REALLY LOOKING TO GET THE BEST FOR YOU MONEY. yOU SHOULD CHECK INTO CORSA COMPLETE EXHAUST, FROM HEADER TO TIP.

/caps lock

From what i have found its a caddy, its a n* and like the jeep 4.0 I6 its pretty maxed out. a CUSTOM cam grind will require a PCM tune (which no one has done yet) along with fuel pump and depending on how radical a beefed up tranny (Torque Converter) Larger injectors etc. I would say get a fleetwood if you want to mess around with the motor.

As far as actual aftermarket support for the n* all i have found is a volant intake cone, and corsa catback exhaust. Oh, and some 600 dollar grills if you want. Nothing else exists for these cars.

woha....

no... can't compare the Northstar to the 4.0 I6...

The Northstar, unlike the 4.0 I6 is not a glorfied tractor engine designed in the 30's :)

No harm ment on the I6, Thats a sweet engine, I like it alot and it'll be in the TJ Rubicon I would like to get next....

but the Northstar has ALOT more potential. The internals can handle around 600hp stock IIRC? I know the rods are forged.

The Northstar was DE-tuned from the factory for various reasons, which is why the very few cars that were able to get ahold of the factory GM programming stuff have turned out huge performance boosts with nothing more then recalibrating the computer.

There is a company called Sanderson.... I can't remember if they made Northstar parts, or Big Block Caddy parts... run a search. But parts for the Northstar are limited... cams, throttle body, intake, exhaust, hi-flo heads are pretty much it... not because the engine can't do it, but because the average 65 y/o that bought a DeVille in the mid-late 90's had no desire for such parts... so why should an aftermarket company build stuff for such a small network of people when they could make parts for, say the 3800 V6 or SBC... and sell a whole lot. That is slowly changing though, more people are interested in the N*, its getting swapped into Fieros, and people are modding their Caddy's... so as time goes on you'll see more stuff pop up.

Once one of these programming kits come out on the market, you'll see massive performance increases on near stock engines. The Northstars real potential hasn't been touched yet...

Yup, Sanderson makes headers for the big blocks, lol...

THESE are the guys that make the Northstar-powered dune buggies.... They basically had to completly write their own program for the engine to run off of, not using any of the GM stuff....

http://www.sandtec.com/index.html

hahaha exquisite. What more could you want out of life that a DPV with a .50 cal powered by a trusty northstar. Exhilerating, Are they AWD?

Can someone tell me where i can get parts for this famed corsa exhaust, where to get the bets prices and such. A few of you have done this? i watched the video juimmy has made, and it soudns pretty beastly. Any Horse increase? is it true dual? Let me know the dirt. Thanks alot guys


-TomBo

To my knowladge none, or very few sand cars are AWD.... it isn't something you want in one of those anyway :)

There should be ads for the Corsa exhaust on the website here.... otherwise just go to their site.

Power increase.... maybe I think they claim 10hp... who knows... I woudln't expect it, but if you do get anything, count it as a bonus :)

Its not true dual. Hardly any FWD cars are true dual just because of the system. Depending on the year and model of your car, Corsa makes (IIRC) Y-pipe back exhausts... pretty nice stuff.

About the comment to the '92 Seville.... if that car had the 4.9, then I bet it did sound more aggressive... sotck for stock, the 4.9 is a more agressive sounding engine.... in fact the 4.9 has a very unique sound to it that is unmatched by any other V8..... with the stock exhaust it isn't as noticeable unless you really listen to it, but its a great sounding engine :)

yea my 92 eldo sounded real eman, that with some nice exhaust would sound amazing. theres alot more tuning available as far as superchips and exhaust options for that car, i wish the old bag hadnt smashed into me. It was black with red interior :). She totaled my baby, bt i got out of the wreck, she wa sin the hospital. Lady is driving at 11:30pm with no lights on. Im sorry I ahd to vent


But i agree the 4.9 just ahs that oHV V8 sound that you never hear anymore.

is there a certain configuration i should buy?

well, the 4.9 dosn't have more of an aftermarket... tho it is slowly changing.... in fact the N* still has more aftermarket, its just alot of us are doing our own stuff or getting custom with the 4.9, plus we are learning some stuff from the Fiero guys as well...

But yeah, its a sweet engine, It is alot more then just being OHV... just the engine design has a very unique sound. BTW Thats what I have in my '93 Coupe (pictured below) :)

You gotta see what Corsa offers... if they have a kit for your specific car, I'd buy that :)

yea they ahve coirsa exhaust specific for my DTS, its about 12 hundo though. If i can find a better price then i might do it. I mean if itll acctually help the car out then yea definately. They aheva car lfie warranty on it, so im guessing it deosnt really corrode? but 12 hundo for some sound is crazy, but then again the exhaust systems dotn last long with all the salt on the ground.



yea man the 4.9 was my first experience with a v8, and was in my first car the 92 eldawg. I eyeball that coupe of yours every post you make, tis so nice. Does your 4.9 have that hissy sort of almsot RC car type sound when your moving slow? It sounds so cool, i miss that sound. Was that the FI sound?


how many miels are on your Coupe De? 93 coupe was what iw as lookign to get after i sold my 95 eldo.

There will be nice benifits to the Corsa.

The Eldo in your avatar? Wow! that was a nice car...

I really want a 1995 Eldorado ETC.... such nice cars, like the inside, outside, Northstar....everything.

I guess the 4.9 has that sound... kind of a whine...

The Coupe has a little over 114k miles now... overshape is nice tho the paint is getting worse everyday, fading clear coat.

The Coupe was my first car too :) Then I got the Oldsmobile, then the '79.... I still have all 3. The Caddys are here in FL, the Olds is still in NY.

Since you have driven both the 4.9 and the Northstar, what do you like more? the Northstar is alot faster.....

well i dont know, for an eldorado, i like the northstar...but thats only because the 92's bodystyle is so much larger than the 91, and the engine didnt get any more powerful....i like the northstar overall better just because of the capabilities, but the 4.9 is unforgettable. It has alot of potential as well. The sound is amazing, and if i could get a 91' eldo or Seville then the 4.9 suits those cars really really well. Its just a great engine. The sound deifnately is alot better than northstar, with exhaust on it i cant imagine what itd sound like...but im sure id be pleased. have you ever heard it?


yea your car does not look like 114k on it, but then again caddies age pretty well. Sucks about the clearcoat, theres alot of good products that boost the paints color like Mcguiar's Color X. That stuff is awsome. Another thing to boost it would be to do this...wash the car, put on the color X, it takes off al the rough spots on the surface and makes the color scream. Then use paint cleaner, take that off and use paint polish. Then some carnuba wax. The car will look brand new. The scratches are pretty much gone and you can slide across the hood of the car. You wont eb able to even lean on the side without busting your ass. When I bought this car it was horrendous i thought i was goona need to repaint it, but tis salvaged thanks to that system of cleaning. The stuyff is amazing, it even took the sunburn out of my friends 86 thunderbird, i dont know how but it did magic or soemthing haha. I put in a friend req on myspace "Tommy Potz n Panz"

woha....

no... can't compare the Northstar to the 4.0 I6...

The Northstar, unlike the 4.0 I6 is not a glorfied tractor engine designed in the 30's :)

No harm ment on the I6, Thats a sweet engine, I like it alot and it'll be in the TJ Rubicon I would like to get next....

but the Northstar has ALOT more potential. The internals can handle around 600hp stock IIRC? I know the rods are forged.

The Northstar was DE-tuned from the factory for various reasons, which is why the very few cars that were able to get ahold of the factory GM programming stuff have turned out huge performance boosts with nothing more then recalibrating the computer.

There is a company called Sanderson.... I can't remember if they made Northstar parts, or Big Block Caddy parts... run a search. But parts for the Northstar are limited... cams, throttle body, intake, exhaust, hi-flo heads are pretty much it... not because the engine can't do it, but because the average 65 y/o that bought a DeVille in the mid-late 90's had no desire for such parts... so why should an aftermarket company build stuff for such a small network of people when they could make parts for, say the 3800 V6 or SBC... and sell a whole lot. That is slowly changing though, more people are interested in the N*, its getting swapped into Fieros, and people are modding their Caddy's... so as time goes on you'll see more stuff pop up.

Once one of these programming kits come out on the market, you'll see massive performance increases on near stock engines. The Northstars real potential hasn't been touched yet...

If it has forged internals then i would try to get a S/C? If it can be done on a STS-V then i am sure it can be done on a deville. I thought the heads/cam were only meant for a rwd application? I would worry about the tranny though

well i dont know, for an eldorado, i like the northstar...but thats only because the 92's bodystyle is so much larger than the 91, and the engine didnt get any more powerful....i like the northstar overall better just because of the capabilities, but the 4.9 is unforgettable. It has alot of potential as well. The sound is amazing, and if i could get a 91' eldo or Seville then the 4.9 suits those cars really really well. Its just a great engine. The sound deifnately is alot better than northstar, with exhaust on it i cant imagine what itd sound like...but im sure id be pleased. have you ever heard it?


yea your car does not look like 114k on it, but then again caddies age pretty well. Sucks about the clearcoat, theres alot of good products that boost the paints color like Mcguiar's Color X. That stuff is awsome. Another thing to boost it would be to do this...wash the car, put on the color X, it takes off al the rough spots on the surface and makes the color scream. Then use paint cleaner, take that off and use paint polish. Then some carnuba wax. The car will look brand new. The scratches are pretty much gone and you can slide across the hood of the car. You wont eb able to even lean on the side without busting your ass. When I bought this car it was horrendous i thought i was goona need to repaint it, but tis salvaged thanks to that system of cleaning. The stuyff is amazing, it even took the sunburn out of my friends 86 thunderbird, i dont know how but it did magic or soemthing haha. I put in a friend req on myspace "Tommy Potz n Panz"

I've tried it all ,the paint can't be saved :(

If it has forged internals then i would try to get a S/C? If it can be done on a STS-V then i am sure it can be done on a deville. I thought the heads/cam were only meant for a rwd application? I would worry about the tranny though

nobody makes a s/c for the older Northstar. The Northstar in the STS-V is a completly new design built around the RWD and s/c from the start.

how would the heads/cam know the difference between RWD/FWD?

nobody makes a s/c for the older Northstar. The Northstar in the STS-V is a completly new design built around the RWD and s/c from the start.

how would the heads/cam know the difference between RWD/FWD?

Sorry i wasnt sure if it was the same n* as used in the 05 models. Wouldnt the torque curve have to be different for a fwd car so you dont get TQ steer etc? For a RWD car there is no such thing as tq steer since all the power is generated to the drive wheels and other then getting sideways from WOT you can have almost any tq curve you want.

However, with a H/C combo your going to need a beefier tranny. Like a TH-400 build with converter etc. I dont think the stock tranny would be able to hold much more then it does now. Plus they werent designed to take a beating which is what would happen if you gave the n* a 100 hp or so increase with a H/C combo.

Well, I have never really heard of the torque curve NEEDING to be changed for a FWD application.... its pretty much a mute point.

The Northstar is the only engine to use the 4T80E... GM's most durable FWD tranny. It features equal-length drive shafts to nearly eliminate torque steer.

my fathers lightly modded '99 Grand Prix GTP has enough torque steer to rip your arm off... that has the 4T65E-HD. Both my 4.9 DeVille (4T60E) and the '89 Oldsmobile w/ 3800 (440T4/4T60) have NO torque steer at all.... its interesting too because the *torque* output of the 4.9 and s/c 3800 are very similar even the RPM and such... yet there is just no torque steer on the Caddy.

Which are we tlaking about... FWD or RWD? the 4T80E is pretty stout and should hold up to anything besides carzy wild stuff.... I think heads/cam upgrade would be fine... Shadow had an insane Northstar in his Eldorado, IIRC stock tranny... then it got totaled :(

The TH400... while an amazing transmission wouldn't be a good choice for a RWD N*... for the simple fact that the N* needs/likes to rev, and while it is powerful, it dosn't have the sheer low-end torque that the big blocks had. My 425 can sit at 2,000RPM all day and pull anything you can strap to the car... the Northstar woudln't be too happy.... then again the 425 is done at 4,000RPM while the Northstar pulls to nearly 7k....

The Northstar was/needs to be driven hard... the harder you drive it, the more it loves you. It was thought that people would take advantage of the high-powered/advanced engine in their new $50k luxury car... instead, most buyers were around 65 y/o and babied them... the N* hates that, and in turn will run pretty bad. The single best thing you can do for any Northstar is to run it wide open as much as possible :). Thats my kind of engine :).

....
The Northstar is the only engine to use the 4T80E... GM's most durable FWD tranny. It features equal-length drive shafts to nearly eliminate torque steer.....

You should meet the THM425.... It laughs at a 400 hp Cadillac 500 and a 400 hp Olds Toronado GT 455.

Olds pioneered the torquesteer problem with the 66 Olds Toro and came up with the equal length halfshafts then. You can imagine with 500+ lb/ft torque the torque steer problems!!!

But, yes, the 4T80E is likley the world's most durable FWD transmission that is still made. Curious, is it related to the 4T60/4T65 at all?

Well, I have never really heard of the torque curve NEEDING to be changed for a FWD application.... its pretty much a mute point.

The Northstar is the only engine to use the 4T80E... GM's most durable FWD tranny. It features equal-length drive shafts to nearly eliminate torque steer.

my fathers lightly modded '99 Grand Prix GTP has enough torque steer to rip your arm off... that has the 4T65E-HD. Both my 4.9 DeVille (4T60E) and the '89 Oldsmobile w/ 3800 (440T4/4T60) have NO torque steer at all.... its interesting too because the *torque* output of the 4.9 and s/c 3800 are very similar even the RPM and such... yet there is just no torque steer on the Caddy.

Which are we tlaking about... FWD or RWD? the 4T80E is pretty stout and should hold up to anything besides carzy wild stuff.... I think heads/cam upgrade would be fine... Shadow had an insane Northstar in his Eldorado, IIRC stock tranny... then it got totaled :(

The TH400... while an amazing transmission wouldn't be a good choice for a RWD N*... for the simple fact that the N* needs/likes to rev, and while it is powerful, it dosn't have the sheer low-end torque that the big blocks had. My 425 can sit at 2,000RPM all day and pull anything you can strap to the car... the Northstar woudln't be too happy.... then again the 425 is done at 4,000RPM while the Northstar pulls to nearly 7k....

The Northstar was/needs to be driven hard... the harder you drive it, the more it loves you. It was thought that people would take advantage of the high-powered/advanced engine in their new $50k luxury car... instead, most buyers were around 65 y/o and babied them... the N* hates that, and in turn will run pretty bad. The single best thing you can do for any Northstar is to run it wide open as much as possible :). Thats my kind of engine :).

I am all for modding a north star dont get me wrong..but as far as a GP trannie..i have heard on numerous forums that they are made of glass. Plus the computer will negate certain mods...i like GP'S and MC SS's but i just have heard bad things about their trannies. Do these people that have Heads and cam combo's have a website?...I am sure they motor must run like ass until they tune it.

Something to read on the turbinator and other "mpg increasing" products.

http://www.popularmechanics.com/automotive/auto_technology/1802932.html?page=1&c=y