I am wondering something about the No Lift Shift for our Turbo Cobalt SS's.

Is the no lift shift feature damaging our car/tranny in any way when we use it? I don't use it often, but every time I want the most out of my car I use it, as it's supposedly not causing any damage to the car. Don't get me wrong I don't abuse it. But I ocasionally use it!

Everytime I tell people about this feature they are like all "DANG IT MUST BE HARD ON THE TRANNY AND ALL THOSE CRAPS". Then I tell them it's a feature the car has to maintain boost, and it's not supposed to cause any harm to the car, and it's written in the car's book that we can do it etc etc. They all tell me well it must be hard somewhere and they wouldn't do it.

I don't believe it's not being very hard on the car by using it, but what do you guys think? I'm not at all into mechanics and I don't know crap about those things. Also, I got GMS1 not. Can it be any harder on the tranny to NLS?

Last thing, it seems that the NLS's are most of the time from 2nd to 3rd, but I use it also sometimes form 1st to 2nd to not get that little boost lag on the shift, it it bad to do that too?

Thanks for your feedbacks!

Dominic

-------------------------
Sport Red Tint Cobalt SS 2008
GMS1

 

Meh cant be that hard if they let you use the feature and still maintain the warranty.

 

You can NLS any upshift. However, I would advise against trying to do it from 4th to 5th, thats just ridiculous.

The way NLS works is that is holds the RPM's steady upon disengagement of the clutch, allowing you to change gear normally as if you had let off the throttle.

In a normal car, powershifting (shifting at wide open throttle) causes a rise in RPM as you disenage the clutch, which speeds up the input shaft and makes it difficult for the transmission to synchronize and engage the next gear. The engine bounces off the rev limiter between gears, and then the clutch has to bring the RPM's back down under a load for the next gear. This creates excessive strain and wear on both the clutch and transmission.

NLS eliminates both issues, making NLS shifting not very much more stressful on the trans/clutch than shifting conventionally at the same RPM.

 

I use it every day...meh its built into the car, so I'm sure they abused the hell out of it before production.

 

we are talking about chevy here, the same company who waited 2 plus years before deciding to recall the powersteering, i wouldnt be suprised if they tested it for a hour and gave it a thumbs up.

 

Uh....it doesnt hold my RPMs the same at all, and my 2-3 shift is blink of an eye...boost stays but RPMs sky rocket....there isnt anything special to activate it is there?

 

You have absolutely no clue what you are talking about.

I know the head of the GM performance division. The car was put through its paces in more ways than you can even think of. The stock clutch survived 800+ launches using the launch control feature.

The average automobile these days consists of approximately 100,000 individual parts. Even with a .01% defect rate, thats still 100 defective parts per car. Most modern cars are nowhere near even that, averaging approximately 1-2 problems per vehicle.

And just for the record, the power steering motor is made by Denso, which is owned by Toyota. GM only recalled it after getting enough evidence to support that there is an issue. And out of 1.3 million Cobalts, it takes more than 2 people on Cobalt SS.net bitching about an issue to make it a recall.

 

hahha I do find that funny, but I personally talked to the gmpp engineer about it, Bill D. (who is on the site) and he says not to worry about it :P

 

whoppy do.... power steering. Had mine go out in my 07 Supercharged Cobalt and it wasn't a big deal, just gotta use some man power to turn it. Its not a as bad as Toyota's recall causing 20+ deaths with their accelerator pedal issue. I'm grateful that I don't drive a Toyota (losers).

 

After what Toyota has done recently, nobody should drive a toyota, period. Not only do they have inherent flaws that can cause serious injury or death, but Toyota tried to cover it up numerous times. And thats the worst part.

There may also be a recall on the new Lexus GX460. Apparently Consumer Reports and Motor Trend have demonstrated that it has a propensity to roll over if the driver lifts the throttle mid corner. Toyotas stability control program sucks just like everything else they make, so the vehicle basically just ends up rolling over.

 

I appreciate the feedback form everybody, but don't get on the Power Steering issue or Toyota VS Gm recalls etc etc! I'm looking for comments on the NLS!

On my hand I noticed the RPM does not hold, it raises a bit but usually when we NLS it's done really quickly anyway.

What about 1-2 gears? If it spins in 1st then NLS to 2nd and keeps spinning? That's not so bad? (I don't care about the tire wear cause I'm aware of it)

 

^^ ^ I kno, I cant believe people are still buying Toyotas it makes me lol

 

yeah, 1-2 NLS is major wheelspin, at least for us tuned guys

 

if i got an amazing deal on a toyota id get one for a spare car...

 

If I want on car from Toyota. My choice will be the "Supra".

 

this does not hold true if you shift fast enough, i use this on my 07 ss/sc, i dont have a wot box and when racing will wot shift from 2-3 and 3-4. never get into 5th at the track so i havnt done it but you get my point. not once have i bounced rev limiter, or once have my rpms risen either.

 

If you're on GMS1 or stock tune I would do it, tuned it's a different story though (too much tq + NLS = tranny blown to bits).

That's how the ppl have gotten 115+ traps in the 1/4 mile, but it's just not worth it to me for 3 mph in the 1/4 mile.

 

You have to maintain full throttle and I believe the NLS only works when you are above 6K RPM (but don't quote me on that one).

 

it will work better from 5800 to 6k.

 

Toyota has had its recent troubles, but they are still solid vehicles. I would recommend any used Toyota (before 2006). I have 3 myself.
1997 Supra is strong as ever, but it does only have 13k miles
1996 4Runner with stock rear brakes at 165k miles, when I had my SS brakes replaced at 13k.
1987 4Runner with 273K miles that will eat any hill.
Don't knock Toyota. GM still can't hold the overall quality and luxury that Toyota does.

But to the OP, NLS works by cutting spark until the clutch is re-engaged.
When a car is actually tuned for that feature, it shouldn't cause any more harm than just driving WOT when used properly.
However, when it is used on cars without that feature, it tries to send power through the clutch and trans between shifts because spark is not cut, and WOULD cause damage.

However, repetitive use will eventually wear the clutch because it is making it grab all of that power instantly when engaged, but it shouldn't hurt the trans.

I wouldn't recommend 1-2 NLS tho. It is a rough shift and spins a lot on a tune especially, which can easily lead to wheel hop and subsequent axle failure

 

I realize the WOT part, and thats what I'm doing. The car holds boost but RPMs still climb.

 

You sound like a Toyota fanboy.

Its not surprising that your 96 4runner brakes have lasted 165K miles. They are drums, and they basically do nothing, which is why they last so long. Brakes don't last forever if they are helping to slow the car down, which us why drums last so long. They don't do jack ****. They also have serious issues with the front brakes on those models. They use shitty ass Toyota fixed calipers, which are notorious for having siezed pistons. And they aren't cheap at all.

80's/early 90's 4Runners with the V6 engines were the biggest pieces of **** ever made. Perhaps yours is a 4. The V6's had all kinds of problems with sensors going bad, and they burned or leaked every type of fluid possible. My friend had one, it was in the shop every week for something else.

I work in the industry, and I can tell you first hand that Toyota doesn't have an overall quality or luxury gap over anyone - especially not GM. When you see the **** poor designs of their vehicles and the way they are built, you realize that they are just another piece of trash from asia that claim to be everything to everyone. Lets not forget the rust issues of the Tundras, Tacomas, and T100s, the Camry sludge motors, and all the recent problems they have been expericing with the half-assed throttle control and vehicle computer systems.

 

Anyone had MAP Sensor failure after NLSing?

 

I am for sure a Toyota fanboy haha

I have the 22re in my 87, which is problem free.
My 96 has the 3.4, not the **** 3.0 from 86-95
I love toyota, but I know when they suck.
Just saying that every brand has their problems at some point, and some problem brands have great success in other areas

I had misfiring when NLSing when i had stock downpipe, but it went away when the cats did, and came back when I put the stock pipe back on.

No map failure to my knowledge tho

 

I NLS all the time without issues. Ive had my car for a year now and have driven it like a bat outta hell since the day I got it. It takes it like a champ. The only thing I make sure of though is that it goes through a proper warm-up if its a cold start and that the car is up to operating temp(190 or so) before trying any type of spirited driving let alone an NLS.