Hello all,
Just wanted to know what kind of probs if any from redlining the LS1 at 30 second intervals. My car's throttle was messed up and didn't shut off while driving so it kept redlining before I could pull over safely. This was going on for about 3 minutes but I shifted it into gear and out of gear to stop it redlining (also shut off car a few times). The car smelled like burnt @ss after I pulled over. Smelled a lot like burnt clutch but i didn't grind at all or ride the clutch.
I was wondering if there could be any engine damage from doing this as well as possible tranny wear from shifting into gear at redline. I want to check out and repair any probs I might have because I noticed a little difference when going into 1st and 2nd. Any help is much appreciated!

 

Ok, read some past posts about this and bent pushrods seem to be a factor when you hit the rev limit. Are these ticks loud and noticeable from inside the car?

 

Why in heck didn't you just shut it off and leave it off? Three minutes? I don't understand taking a chance of blowing a $3500 engine for the lack of turning off the key.
What was the cause of the sticking throttle?

 

HMMMM...

Bent pushrods, valves, or damage pistons.

Why the heck would you keep running the car even though it was being over-reved?

 

Bent pushrods usually happen when the engine over-revs, not from just hitting the rev limiter. Downshifting when you meant to upshift.

As long as you had good oil pressure and didn't overheat, holding it to redline for 30 seconds at a time probably didn't hurt the engine. But I wouldn't go around repeating the process...

When you were putting the car in gear, you were letting off on the clutch some too? Stock clutch? Probably glazed it.

 

Ok, this was done out of necessity and not for pure enjoyment going out in a blaze of glory. I was on the freeway and somehow the throttle got stuck, wouldn't let off. Find out after it gets towed to the dealer that a "rock" got stuck in the throttle body release spring? I dunno how a rock travels all the way up through the engine bay to get stuck where the throttle is.

Anyways I'm driving along and the car begins to take off. The throttle is wide open and I try to slow the car down by letting the clutch out. This of course sets the rpm right past the limiter. I have to engage and disengage into 5th, 6th gear to try and reach the sholder. Mind you this is in rush hour traffic so there's no way I can just pull over to the side. I finally have to shut off the engine to slow down, turn it back on and get in gear to try and cruise over to the side. Luckily I was helped along by a Highway Patrol cruiser. :blah:

This is a stock clutch and I did let off on the clutch when engaging from peak rev. I'm trying to see what I can do about this, see if GM will take a look at it for free. I do notice a shudder now when starting out from 1st gear.

 

that shudder when starting off in first gear is most likely your flywheel having hot spots or being slightly warped from the heat created when engaging the clutch in 5th and 6th at redline at a speed far too low for that rpm and gear combination.
A good sign of overheating of the clutch/flywheel is if immediatly after this happened your clutch felt mushy and was in farther that normal.

 

I've never heard of a rock getting stuck in the throttle cable. Very odd.
I would definatly keep a close ear on it for a long time. And get that whole clutch assembly replaced.