ducati916

I think i overreved the engine the other day. What happens to it? What should i look for? If no problems are detectable can there still be something wrong, thats not noticeable?

Fast SS on TNT

iTrader: (1)

If you have no obvious valvetrain noise, or ticking you should be fine. You have a built in rev limiter that protects the motor from over revving. About the only thing you can do from over revving is float a valve. Unless you have programmed your rpm limiter in your pcm to a very high redline.
I have over reved my engine before, and all it does is set off a temporary SES code which quickly goes away.

No ticks, no grinding, no problems. Now stop worrying so much!!

JoSeY

ticking....pushrods bent.....9 out of 10 times a stock LS1 or mildly modded LS1 engine is over-reved pushrods are bent...other than that the stock bottom end can take 7500 rpm every now and then w/out too much worry....

if ur car is down on power check the PR's 1st...they're easy....after that...it's usually a sign u floated a valved and had a piston smack it..

ducati916

if i floated a valve how can you tell if you did. What would happen if the bottom end didnt handle it? the top end?

DenzSS

The rev limiter cannot protect you from a mechanical over-rev such as the 1-2-3-2 common shifting screw up.

UGotBeaT

mine hit the rev limiter a couple times cause my throttle cable got stock and i had one broken pushrod...took off the heads cause the knock was loud and found out my piston was caved into my cylinder wall......