: Intake Replumb



lasstss
06-19-05, 09:51 PM
For fathers dayI finally took off the squeeze pipe. Came out pretty good. I just had to trim the elbow. Also installed the HPS pads.. Hopefully less dust..


Alu pipe came from Burns Stainless.

http://www.stealthwork.com/

All silicone parts made by OBX racing

JOEYCTS-V
06-19-05, 09:56 PM
It looks very neat. Where did you get the throttle body elbow?

EDIT: Didn't see you included that info.:o

CVP33
06-19-05, 09:58 PM
That looks very familiar.

HDMLNIUM
06-19-05, 10:01 PM
Looks great, my next mod...:coolgleam

Bill
http://photobucket.com/albums/v466/HDMLNIUM/th_front-1.jpghttp://photobucket.com/albums/v466/HDMLNIUM/th_engine-yeah.jpghttp://photobucket.com/albums/v466/HDMLNIUM/th_rear-1.jpg
05 CTS-V--- Light Platinum
3M Clear Bra and Tinted windows, LS6 Emblem, Stealth-V z06 fuel rail covers, Lasstss Billet interior pieces
B&B Headers-high flow cats-and 3" resonator exhaust, Lingenfelter CAI, UUC shifter, Full BMR...
Online Photos http://photobucket.com/albums/v466/HDMLNIUM/

CVP33
06-19-05, 10:16 PM
Here's mine.

willsctsv
06-19-05, 10:28 PM
They all look like the FFV to Me!!
Imitation is the sincerest form of flattery!

lasstss
06-19-05, 11:27 PM
It looks very neat. Where did you get the throttle body elbow?

EDIT: Didn't see you included that info.:o

Na, I added it rather than adding another post. I had 2 elbows, one was rubber like CVP33 has, its a smoother transition. The one I used is reinforced silicone but its a hard 90, gives a little more room. Still better than the divided squeeze pipe. :yup:

StealthV
06-19-05, 11:38 PM
Divided squeeze pipe, lol. Can't go wrong with polished stainless. :thumbsup:

Rey
06-20-05, 11:16 AM
The exterior of the metal tubing picks up a lot of heat. Polishing, in addition to looking nice, does reflect some of that heat. I haven't measured the inside air temp, but I did measure the exterior of my unpolished aluminum tubing. It was running 125-135 degrees as measured with an hand-held infared thermometer. This was about the same temp as the throttle body (with the water connectin detached). Then, I wrapped the tubing with simple and cheap pipe insulation "tape". This reduced the outer wall temp of the tubing to 90 degrees.
Another thought is that the path of the intake makes it a secondary radiator shroud, the primary being the fan shrouds themselves. I am thinking that some sort of simple heat shield between the fan shrouds and the intake tube would be helpful. Alternatively, perhaps some small extenders on the fan shrouds might work.
I suspect that these Gen III motors are oversensitive to intake air temps because I suspect that GM is very aggressive in retarding ignition as intake air temps rise - like retarding the ignition well before knock sensors are activated.
It would be an interesting experiment to see what effect icing the intake manifold would have on a dyno run. It is simple to do, just dump a bag of ice onto the top of the intake manifold and wait five minutes for a cool down.

lasstss
06-20-05, 12:20 PM
I have read a lot of that stuff. The pipe is 9" long. The 'residence' time of the air thru that pipe is negligeable. The heat given off by 'skin effect' is also small. If it were a tank holding compressed air and we were cooking it for an hour it might be an issue. Pulling air from around the nose of the car is more of a problem than materials. With the hood closed all parts normalize to the surrounding temp.

trukk
06-20-05, 01:11 PM
Martin,

What did you do about the factory airbox and filter? Leave those the same?

-Chris

lasstss
06-20-05, 01:18 PM
Martin,

What did you do about the factory airbox and filter? Leave those the same?

-Chris

I did but I do have the K&N. As I now have about 3500 mi on my 04 it doesent get much use. K&N's are a pain for a daily driver.. IMO..

The after market peices surly add some horsepower but Im waiting to get a system that gets out of the engine compartment. I may fool with it after the mag install. :D

Rey
06-20-05, 08:04 PM
While I agree with Lasstss that the residence time of air passing through the metal tubing is negligible, in real city driving where there is stop and go, heat soak will be a big factor in intake air temperature. I did some simple testing using digital thermometers attached to the outside of the grill and the inside of the stock plastic intake just at the airbox. Generally, I found about a 20 degree temp differential; but when the car sat for as short as five minutes the differential soared. I saw as much as a 75 degree differential. Once driving again, the heat differential decreased, but it took more than five miles of highway driving for the differential to stabilize to 20 degrees.
Just covering the stock intake with mylar home dryer ducting as a heat shield brought the differential down to about 8 degrees; and the heat soak differential was more in the range of 40-50 degrees.
All this doesn't make much difference on a long trip/road race or on a dyno run. But it does make a material difference in city driving.

willsctsv
06-20-05, 09:28 PM
if your city driving you won't need the extra 5hp your loosing due to heat soak! Right!

LV_V
06-30-05, 07:29 PM
What size pipes/elbows do I need to order to replace everything from TB to MAF?

I just ordered the Lingenfelter K&N filter to put into my More Performance heat shield. I want to replace the ugly, constrictive factory "squeeze pipe" as well.

Rey
06-30-05, 09:58 PM
The rubber 90 degree elbow can be obtained from Air Flow Systems.
http://shop.airflowonline.com/Merchant2/merchant.mv?Screen=CTGY&Store_Code=AFSI&Category_Code=9D. The elbow I used measures 4" at one end (trottle body) and 3.5" at the other end (intake tubing). Cost was $17.08

LV_V
07-01-05, 03:06 PM
So the aluminum tube is 3.5" OD I am assuming?

lasstss
07-01-05, 04:16 PM
So the aluminum tube is 3.5" OD I am assuming?

Correct 3.5 X 9.0" approx. Depending on the elbow. THe elbow will probably require some trimming.

Leeman
10-05-05, 09:16 PM
Know where one can find the 3.5"x9" aliminum tube ?
I assume all you need is that and the elbow listed above ?

Thanks !
Lee

Leeman
10-05-05, 10:40 PM
http://store.summitracing.com/partdetail.asp?autofilter=1&part=SUM%2D640035&N=4294923429+4294820497+4294859313+4294859306&autoview=sku

I assume that would work.. cut to size obviouisly ?

-- Lee

1MEANV
10-05-05, 10:44 PM
I Have A Volant Cai Elbow(intake Tube) That Is Going To Be For Sale. Brand New. The First 50 Bucks Plus Shipping Gets It. It Will Not Work With My Maggie. I Have To Use The One That Came With The Maggie

lasstss
10-05-05, 10:48 PM
Know where one can find the 3.5"x9" aliminum tube ?
I assume all you need is that and the elbow listed above ?

Thanks !
Lee

Burns stainless and you can get it polished!

Leeman
10-05-05, 10:52 PM
Awesome. I assume I need a 3.5" clamp as well and that's it ?

-- Lee

V-FORCE
10-06-05, 07:34 AM
1Meanv i'll buy your volant elbow-intake tube if you haven't sold it yet.please let me know.

ntechnic
10-06-05, 01:26 PM
OK, I have the elbow and pipe and flat band clamps ordered.

But...I need the coupler at the MAS end. I can only find flexible couplers up to 3" not 3.5", Anyone have a source?

DansCTSV
10-06-05, 01:35 PM
Did you try here?

http://store.airflo.com/rubber-hoses---clamps.html

Once you get this figured out, will you provide a list of parts and sources?

Thanks,
Dan

JOEYCTS-V
10-06-05, 01:39 PM
Do you mean a hump hose? If so...

http://store.airflo.com/3h35.html

JOEYCTS-V
10-06-05, 02:11 PM
Just to clarify, should the hump hose be 3.5" or 4" to 3.5"? Also, they don't have the 4" hose clamp that will be needed for the throttle body side on their site.

lasstss
10-06-05, 09:33 PM
Do you mean a hump hose? If so...

http://store.airflo.com/3h35.html

OBX racing sells this stuff in gloss black silicone. I cant find the link.

Clamps can be had thru any oetiker dealer.

ntechnic
10-06-05, 11:45 PM
OK, I ordered everything today. I'm going to powdercoat the straight pipe black when I receive it so that everything has a more uniform appearance, I want it to look as stock as possible.

Parts list:
(1) Elbow reducer for TB to straight pipe
(1) 3.5" diameter straight aluminum pipe (need to cut to size)
(1) 3.5" hump hose for straight pipe to MAS
(1) 4.0" T-bolt clamp (for elbow to TB connection)
(3) 3.5" T-bolt clamp (for elbow to straight pipe and both ends of the hump hose)

Elbow reducer for TB to striaght pipe:
3.5" to 4"
http://www.stealthwork.com/reinforced-90-degree-silicone-elbow-p-307.html
Part # SE350-450
$40

All following parts from http://www.boostcontroller.com/ (http://www.boostcontroller.com/)

Straight pipe:
http://www.boostcontroller.com/index.php?item=124&ret=http%3A%2F%2Fwww.boostcontroller.com%2Findex.p hp%3Fpage%3D1%26category%3D106
Polished Aluminum Straight Tubing #UAT-2XXX Size - 3.50 inch diameter
$33.46

Silicon hump hose:
http://www.boostcontroller.com/index.php?category=34 (http://www.boostcontroller.com/index.php?category=34)
Silicone Hump Hose - 3 inch length #ASCHH3-X Size - 3.50 inch ID
$22.00

T-bolt clamps (quantity 3):
http://www.boostcontroller.com/index.php?item=123&ret=http%3A%2F%2Fwww.boostcontroller.com%2Findex.p hp%3Fpage%3D1%26category%3D105
Stainless Steel T-Bolt Hose Clamps #SSTBHC-X Size - For 3.50 in. ID coupler
$5.98 each (x3 = $17.94)

T-bolt clamps (quantity 1):
http://www.boostcontroller.com/index.php?item=123&ret=http%3A%2F%2Fwww.boostcontroller.com%2Findex.p hp%3Fpage%3D1%26category%3D105
Stainless Steel T-Bolt Hose Clamps #SSTBHC-X Size - For 4.00 in. ID coupler
$5.98

It won't look as pretty as StealthV's, that's for sure. I'd buy one from him in a heartbeat to save the hassle of cutting the pipe (I'll pay a machinist because I want the cut perfectly straight and don't have a band saw), running to the powdercoater, going back to pick up the pipe from the powdercoater, etc. And it still won't look as good. StealthV is awesome vendor, and if I were a more patient man, I'd wait and buy his FFV next time it's in stock. And I'll end up sending him my PCM again for an update...

trekster
10-07-05, 01:07 AM
Is Stealth V going to restock the FFV intake? I'm interested in getting one to match it with my LPE air filter.

Autom8r
10-31-06, 05:27 PM
After seeing the 19 HP increase over stock dyno results of the K&N "Aircharger" on K & N's website, I dug into the stock airbox and can't see how anything could be much more efficient than the stock CTS-V's cold air intake.

Can anyone give me any reason not to call "BULLSHIT!!!" on the K&N dyno results????

Dave

atdeneve
11-01-06, 08:46 AM
For one, I don't think it was a proper 4th gear pull. Was it 3rd gear, or mayber 2nd? Don't know. Don't remember.

Second, it's pretty much a given that the difference cited by any aftermarket vendor is gonna be taken between the stock 1st pull (lowest numbers) and the after install 3rd pull (highest numbers) to yield a larger (and misleading) gain. I guess you might say it's a play on advertising/marketing. Or, simpy put, bullshit.

rand49er
11-01-06, 09:08 AM
For one, I don't think it was a proper 4th gear pull. Was it 3rd gear, or mayber 2nd? Don't know. Don't remember.

Second, it's pretty much a given that the difference cited by any aftermarket vendor is gonna be taken between the stock 1st pull (lowest numbers) and the after install 3rd pull (highest numbers) to yield a larger (and misleading) gain. I guess you might say it's a play on advertising/marketing. Or, simpy put, bullshit.BS? Maybe. This is interesting ... Dyno graph states both pulls were in 2nd gear and about one hour apart (10:30 vs 11:30 am). Temps and baro are relatively close. Of course (as any marketing person would do), they found the RPM with the max gain, and that's the one being touted; heck that's what I'd do! Is this really REAL? I only know the basics about chassis dynos. Maybe someone who's much more knowledgeable about dynos than I can chime in, too. Marty? Rick? Anyone?

Autom8r
11-01-06, 09:59 AM
I was paying more attention to the graph numbers before I noticed which gear the V was in, not sure what effect teh gear would have on the pull, except to slow the dyno down. Here is the link to the K&N site;

http://www.kandn.com/dynocharts/63-3054.pdf

Dave