Just my .02: I can't see how doing repeated WOT will benefit the Northstar. If the only thing it helps is reduce oil consumption, then I'll add the oil when it needs it. I just can see any benefit with incurring damage elsewhere. WOT causes tremendous strain on the bearings, connecting rods, valves not to mention the tranny and CV joints. Anyone else feel this way? Can anyone give me proven reasons for doing this?:ill: V.
This whole WOT thing....
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The primary rationale is that it helps clear out carbon from the piston ring lands, and thereby helps reduce oil consumption. It's also supposed to help blow out and/or burn off carbon from the piston crowns. Here's a better question: Has anyone damaged their engine by doing WOT, or been told that their engine , transmission, or CV joints failed because of previous liberal application of WOT? My guess is the answer will be no. I beat the crap out of mine as often as I can, it has almost 97k miles on it, my oil consumption is negligible, I have no "cold carbon rap" problems, and I have experienced no problems that I would consider out of the ordinary and certainly none that I can directly attribute to WOT. I think you'll have more complaints by letting the carbon build up, and I think you're worrying about it too much.VinnyT said:
My advice:
Sell your car and buy a Honduh. Someone else could probably use the torque better. :lildevil:
Seriously, if you worry about component failure all the time, maybe you should stay inside? The sun's rays can give you cancer. Don't eat barbeque'd food either, the charred food gives you cancer too. And don't open the windows, you could catch a chill and get pneumonia.
...or not. :bonkers:
Sell your car and buy a Honduh. Someone else could probably use the torque better. :lildevil:
Seriously, if you worry about component failure all the time, maybe you should stay inside? The sun's rays can give you cancer. Don't eat barbeque'd food either, the charred food gives you cancer too. And don't open the windows, you could catch a chill and get pneumonia.
...or not. :bonkers:
2005 Escalade 6.0L 2WD, 2007 Jeep Grand Cherokee Limited CRD
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It's a tough engine, built for running at 6,000 RPM's plus. And the transmission is one of the heaviest and strongest FWD trannys that's out there!
Well the more revolutions an engine makes in it's life, the shorter it's life will be, everything else being the same... But bearing and valvetrain failures just don't happen. (at least in our engines)
If you want a reason to do your WOT's, how's this... By exercising the rings, they seal against the cylinder liner better. Even a marginal 5psi improvement (VERY easy if they were stuck due to carbon buildup) would mean an extra 10hp.
If you want a reason to do your WOT's, how's this... By exercising the rings, they seal against the cylinder liner better. Even a marginal 5psi improvement (VERY easy if they were stuck due to carbon buildup) would mean an extra 10hp.
PS - have you ever seen any of those failures here? Can you name anybody who's had a bearing failure? CV joint failure?VinnyT said:
I know of a few connecting rods that let go and grenaded the engine, but that seems to be isolated compared to head gaskets.
I did go to the Tech archives earlier. I just never heard of doing WOT shots for routine maintenance. I'll try it this weekend.:lildevil: I had a 1998 Z28 with the LS1(aluminum block) and it also has cold piston slap, Sounded terrible. I got rid of it 2 months later; what a POS! Wasn't trying to argue with anyone on this subject, just wanted to get other opinions. Thanks all! V.
Generally speaking, the redline is a VERY safe "RPM limit".. I think that the northstart could probably rev to 7000 RPM without any problems.....
Basically assuming the oil is fully warmed up, they design things to be redlined every shift...
Now if the head gasket can take it is antoher story...
Basically assuming the oil is fully warmed up, they design things to be redlined every shift...
Now if the head gasket can take it is antoher story...
Because it puts a big ass smile on your face to watch those hugging your bumper on an on-ramp fade into the distance as the ramp straightens and your right foot plants it to WOT.VinnyT said:
If you don't ever give the engine WOT, it never has a chance to make it's maximum power. That's one thing I never understood about peopel who say WOT is bad for these engines. They have obviously never felt the N* perform how it was designed to. Any engine that produces 300hp at 6000rpm is made to rev high and hard.
Vinny,
Purchased a used 98 Eldo from a dealer and the service dept had maintained it for the gentleman like a watch. After coolant, tran fluid, and other service checks, I still worried about oil consumption. Checked behind the scenes with the old line tech at the dealer and he related that the original owner only drove it about 55 and to decrease the oil consumption "run it like I stole it." Did just that and the tech was exactly right. Only experience that I have ever had like it is riding coach in a commercial 737. Try it, you'll like it....just make certain that fluids are current and correct and read up on the tech archive above, like the Ranger advises. Just like Coca Cola Classic, its the real thing, baby!
Purchased a used 98 Eldo from a dealer and the service dept had maintained it for the gentleman like a watch. After coolant, tran fluid, and other service checks, I still worried about oil consumption. Checked behind the scenes with the old line tech at the dealer and he related that the original owner only drove it about 55 and to decrease the oil consumption "run it like I stole it." Did just that and the tech was exactly right. Only experience that I have ever had like it is riding coach in a commercial 737. Try it, you'll like it....just make certain that fluids are current and correct and read up on the tech archive above, like the Ranger advises. Just like Coca Cola Classic, its the real thing, baby!
Well then... I didn't buy my STS to go fast or even try to brag about it..(My Elcamino has 430 rwhp) cuz it's just not fast.. It's fun to drive and it's quick, gets good mileage by comparison to some other cars I've had over the years...
My N* uses about a quart every 3000 miles... Which to me, is pretty normal and acceptable for 111k miles! Granted I don't drive it like a grandma, but I don't drive it like I stole it either.. Don't plan to, that defeats the purpose of the MPG I try to maintain! If all I'm gonna do is beat it to the redline every time I get in it I may as well drive the muscle car.. It gets 21mpg highway...
I've heard of MANY N* probelms with transmissions/ head gasket problems etc... Be nice to your car, keep the fluids current and run premium fuel = Better running / Longer lasting car then one that's stomped on every day!
My N* uses about a quart every 3000 miles... Which to me, is pretty normal and acceptable for 111k miles! Granted I don't drive it like a grandma, but I don't drive it like I stole it either.. Don't plan to, that defeats the purpose of the MPG I try to maintain! If all I'm gonna do is beat it to the redline every time I get in it I may as well drive the muscle car.. It gets 21mpg highway...
I've heard of MANY N* probelms with transmissions/ head gasket problems etc... Be nice to your car, keep the fluids current and run premium fuel = Better running / Longer lasting car then one that's stomped on every day!
I used to do that every day with my Rora. Only problem is it was getting to be too much and I realized that is why my engine accessories keep going out all the time (all the original components like water pump, EGR etc). I let it shift at 3000rpm all the time now and only floor it when passing a whole assload of cars. I did 110 this morning just passing people the whole time. Now that is fun, but i only do it when i have to.
You know, things like EGR valves and water pumps are normal maintenance items. How many miles were on your Aurora when you had those problems? I believe you'd have the same problem with WOT or without. Aside from that argument, going 110 in traffic is a good way to get yourself and somebody else killed, not to mention jail time and insurance premiums. How is that easier to justify than WOT??? You're not making any sense, man. :helpless:auroradude said:
110 passing a line of traffic. Obviously you didn't think of it at the time but now imagine some old bluehair or some inexpirienced kid deciding to pass in that line and he/she doesn't bother to check the rear view mirror before pulling out. Life as a paraplegic or quadraplegic can't be fun.
Wow, after reading all this you'd think one would believe that driving at redline is gonna make thier car last longer!! Driving a car hard might keep the combustion chamber cleaner but it's not gonna magically make the car last forever! All parts wear out and routine WOT driving WILL wear parts out FASTER.... These cars might be tough enough to endure this kind of driving for quite some time but quality and timely preventive maintenance is the key here...
Everyday start and stop - short trips, around town kinda driving will build up some carbon etc.. and would benefit from an occasional blast down the road. But, highway miles are what puts record miles on cars! NOT WOT driving!! "Racing" your car to make it last longer?? That's just rediculous! Ever watch drag racers?? Things break from WOT.. Things break from use of HP! IT IS FUN.. I'll be the first to admit it, but dont' think you have to do this to keep your caddy in good shape!! LOL
Like to race and go fast allot?? Buy/Build a car meant for it and save your caddy for the Luxury driving it was intented for!!
I like to race.. I'll drive 150mph on the street.. I've even make videos of my car! I'll never abuse my Caddy like that, But I'll pass Grandma....:halo:
www.josephgoss.com/ElkyVids/elkyvid1.wmv
Everyday start and stop - short trips, around town kinda driving will build up some carbon etc.. and would benefit from an occasional blast down the road. But, highway miles are what puts record miles on cars! NOT WOT driving!! "Racing" your car to make it last longer?? That's just rediculous! Ever watch drag racers?? Things break from WOT.. Things break from use of HP! IT IS FUN.. I'll be the first to admit it, but dont' think you have to do this to keep your caddy in good shape!! LOL
Like to race and go fast allot?? Buy/Build a car meant for it and save your caddy for the Luxury driving it was intented for!!
I like to race.. I'll drive 150mph on the street.. I've even make videos of my car! I'll never abuse my Caddy like that, But I'll pass Grandma....:halo:
www.josephgoss.com/ElkyVids/elkyvid1.wmv
When most of us reffer to WOT, we don't mean we're going flat otu down a highway as fast as we can with our foot to the floor( although many of us have done that on occasion). I do WOT maneuvers with my car every day. Th edifference is, my car is only at WOT for brief moments, maybe 10-15 seconds at most. Usually, I'm trying to get ahead of someone in traffic, or just messing around.
Also, I don't think you fully understand the WOT procedure that most of us are describing for blowing out carbon. Drving flat out as fast as you can couldn't be further from what most of us do when we want to blow out alot of carbon. You put the shift in second and run the car up to about 75-80mph from 25 or so, and then let the engine brake the car back down to 25 or so mph. Doing this 3 or 4 times (or until the cloud is gone) every once in a while (provided you reare;y give it WOT) is what we suggest to others who are wondering how they can descrease oil consumption. This procedure does work, and has for many people.
Most of us never drive at WOT down the highway for extended periods of time, because that's a sure way to where stuff out quickly. The occasional rev to 6000rpm does help keep the rings seated, and isn't necessarily bad for these engine. As I mentioned before, what's the point of having an engine that was designed to produce it's maximum output at 6000rpm, if you never let it rev to that point. That's liek driving an S2000, but never shifting past 5500rpm. You might as well be driving a Taurus or something.
Also, I don't think you fully understand the WOT procedure that most of us are describing for blowing out carbon. Drving flat out as fast as you can couldn't be further from what most of us do when we want to blow out alot of carbon. You put the shift in second and run the car up to about 75-80mph from 25 or so, and then let the engine brake the car back down to 25 or so mph. Doing this 3 or 4 times (or until the cloud is gone) every once in a while (provided you reare;y give it WOT) is what we suggest to others who are wondering how they can descrease oil consumption. This procedure does work, and has for many people.
Most of us never drive at WOT down the highway for extended periods of time, because that's a sure way to where stuff out quickly. The occasional rev to 6000rpm does help keep the rings seated, and isn't necessarily bad for these engine. As I mentioned before, what's the point of having an engine that was designed to produce it's maximum output at 6000rpm, if you never let it rev to that point. That's liek driving an S2000, but never shifting past 5500rpm. You might as well be driving a Taurus or something.
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