Hey guys,

I have recently started to drive my car a little hard now that it is broken in. I hate to say this, but I have noticed a lack of power between the 2,500 - 3,500 RPM range (This is in any gear.) The turbo's hits 17 PSI around 2,000 RPM but then drops to 10 PSI when I hit the 2,500 - 3,500 RPM range and there is a noticeable loss in power. I know that the turbo's PSI does not reflect the HP I am actually hitting but I actually notice a loss in power. I hope everything is alright with the car. Any ideas? Thank you!

Jake

 

yea, I hit 15-16 and it stays there, doesn't drop, sounds like yours is doing something odd

 

does it do it in comp mode as well? JW

 

Go straight to the dealer and get warrantied.

 

First ss/tc boost leak?

 

bruce lee...

might be the spring in the wastegate....it doesnt hold boost that well. go to the dealer

 

Yah............................................... ....

The problem is... Dealers don't get it when you say stuff like "It should be hitting 15 PSI" etc... They don't believe you or will ask where does it say it's supposed to do that? I bet you'll get a run around.

 

Should've got an SS/SC.....

 

Then, I'd lemon law it.

**** it, I love GM, but if the car has problems and the dealer techs are too stupid to fix it...

I think the OP should just take it to the dealership and see what, if anything, is wrong.

 

quick everyone, crucify GM and the dealership before the guy even goes in!!!

 

It just sucks. I can't believe it just stops pulling out of nowhere and then starts to pull again. If it were a waste gate issue, wouldn't it do it randomly?

 

I'm simply saying this...dealership techs suck. I haven't met a single one that is more knowledgeable than myself.


They drive me insane and if I have issues that they can't fix...I WILL lemon law this car.


The LNF is a great engine and I'm sure this guy's SS/TC is fine, but I just hate dealership techs.

 

I couldn't agree more. The majority of techs DO NOT know what they are doing.

So I see no problem with crucifying GM immediately and on the spot until they have earned some respect back.

 

I do NOT lump the engineers and designers at GM with the monkey idiots at the stealership.

I don't want to crucify GM...it's all dealership technicians.

 

im thinking boost leak... definately take it back to the dealership

 

boost leak? You guys are killing me. He said it only does it from 2500-3500rpms. It's a damn computer issue. Just like the car can't really make more power than 260, JUST like hahn had issues with the drag radials at the track. The ******* car is plagued with computer viruses. GM has this ******* car so wrapped up in computer tricks it is ridiculous. I gurantee it's the computer doing something wierd.

 

i AGREE

 

When I drove my car down to NC (the car only had 300 miles when I left) I pulled into a rest stop with around 750 on the odometer and when I went to get on it the car just bogged out... I figured I didnt give the computer enough time to learn before hitting cruising speed for 8 hours. I dropped it into 4th and floored it then I slowed down and dropped it in 3rd and did the same thing. I retrained the ecu I think since it runs great now...

I dont know if this will help but ya never know. have you gotten on it at all since you got it? you may just have to go out and romp on it for a little bit so the computer knows what to do with heavy acceleration

 

my car is at the dealer right now for a lack of power as well. codes and the dealer has no clue why its acting this way... talking with gm to find a resolution. will keep you posted.

 

if you lived near kansas city missouri, jeremie(on this site) is an awesome gm tech. I'm sure he could find the problem.

 

I'm in col. oh so I don't think thats going to happen but thanks!

 

Ok, I haven't taken mine it yet but it is definitely not as quick as the car I test drove. I can't think of anything I've done to cause damage. I am using 76 station 91 octane gas in it and it seems to run well with it. Is 76 gas decent? I'm pretty sure it's Top Tier.

 

Right around ~500 miles on my SS/TC. I've taken it to 5k rpms a couple times in second. Tonight I actually wound 1st gear to 5500 and went into second briefly. Some ******* behind me at a red light kept honking (2 lane road, both of us turning left, no turn signal). There was a line of cars coming the other way so I obviously couldn't go, but this ******* is so impatient to get home to **** his ulgy wife, so I wait until it's clear and wait a second or two more just to **** him off even more and assure he got caught by the red light while I sped off...

wtf does this have to do with the topic...lol I almost forgot for a second. My car still pulls hard and feels to have alot left to offer.

 

here here.

or rather

hear hear.

 

76 Gasoline? Good, bad, whatever?