81.5X89 LSV
GSR head Poor man dual valve springs
PR3 pistons
Shot peened LS rods
ARP rod bolts
GSR girdle and mains machined to B1 block
machined to .0015 on all main and rod bearings. except #3 main @.0014
Custom breather setup (no oem PCV system)
I/H/E



So Like it says. I went from 3rd to 2nd by accident Engine spun 11,000 +/- 200 rpm. I personally built the block to stand high revs, but not that high.. The head was not built for high revs yet though. Everything seems ok, but I am a little worried still. I checked oil for any signs of metal and found none. I used my stethascope and listened to everything, Sounded good still. Idles fine. Got no check engine lights on now. I think I am safe <-- crosses fingers

My questions are:
1) Is there something I should check that only a "performance engine builder" would know to check?

2) My buddy did this once on a GSR and bent all his EX valves. I put the poor guys GSR intakes on the Exhaust side just because of that. Did that help or am I just lucky, or both?

3) Why would a tuner not set a RPM limiter? I would think everyone should have one for the "just in case" factor. (I did not know I didn't have one set cause I dont rev past 8200....usually )

4) Has anyone else done this and got away with it like I have SEEM to so far?

Nick

 

start with a compression test and go from there. Yes the tuner should have set an RPM limit or at least asked you where you would like it set, somehow it got overlooked, it happens.

 

Overlooked huh, I can see how that could happen. But, overlooking things like a rev limiter should not happen. But I was at the tuner after hours so maybe they wanted to go home

<---- Need to change avatar to new 11,000 RPM completely off the chart tach pic.

 

No rev-limeter in the world will stop the engine from over=reving when you go 3-2 on the shift.

 

it probably has a limiter in place,but it wont stop the trans from spinning the motor well beyond that though if you do a 2-1 ,3-2 ,4-3 shift

 

Hmm, I thought they electronically shut down..... nevermind, now that you said that I think I understand fully.
Rev limiter is only going to help when not under load? ie nuetral or clutch in?
Being in gear causes the motor to turn regardless of fuel, spark or fuel.

So a limiter is only going to help in the event of a miss shift, not a wrong gear selection like 3rd to N. Not 3rd to 2nd lol.

 

You've got it. You could have hit 12,000+ in 1st gear.

 

Here is the tach with the recall of my shift.

 

lol


Im sure your worrying over noting right now. If you compression test and there aren't any signs of "jack'dupness" you rgood to go..lol

dont do it again.

 

you got lucky just keep running it and try to stay away from 2nd after your in 3rd

 

Ya i did the same thing with my B16 went to shift 3rd to 4th and accidently put it down in 2nd but I bounced my rev limiter a few times which was set at 8500 didnt mess anything up..just keep running it and check it if ur super worried compression test.

 

Please, someone talk to the dictionary people and have them add "jack'dupness". I lov-did-it!!


Main Entry: jack·dup·ness
Pronunciation: \jaq-ˈdup-nes\
Function: noun
Etymology: Middle English, from Anglo-French, jacked up-, from jacked
Date: 21st century

1: the state of or structure, organic existence, or condition of <I miss shifted and now my motor is in a state of jack'dupness>

 

Goin out right now to compression test, Everything sounds and feels normal. I cant decide if the tach read 11,000 or it just hit a "stopper" for the needle at that RPM
Happy that lady luck was on my side today.

BTW: does anyone have a sound clip of a failing oil pump. Mine is a brand new OEM GSR pump but I hear some funny sound from the T-belt region. This has happend since the install and not related to my over rev. It is also a NON OEM t-belt and tensioner. I assumed that was my noise. I have read about oil pump failure and have never heard one.

Thanks
Nick

 

High pitch screeching or squeaking to grinding noise.

 

HELLL YEAH!!!! add that put hybrid said it glad someone liked it.

 

I would be more worried about stretched rods bolts. Even ARP's. I have seen it happen to a few cars last year even... It happened to them more than once though. I think you should be ok.

 

2) My buddy did this once on a GSR and bent all his EX valves. I put the poor guys GSR intakes on the Exhaust side just because of that. Did that help or am I just lucky, or both?

^^ what did u put on the exhaust?

 

I have a wierd wooshing noise kinda like a pulley. If I watch the timing belt I can time the noise to when the lettering goes by. So it is a slow non constant noise. like wha wha wha wha...... lol sorry

I Put GSR intakes on the exhaust side as well as the intake side GSR's have single springs on the exhaust side and that just seemed dumb to me.

BTW: compression is still 210 accross the board

 

Youre good bro... Rev limiters dont MECHANICALLY stop your motor from over revving. I once reved my D16 to 10000RPM's and nothing went wrong.


Next time you open up your motor, give you ARP bolts a good kiss. They prevented a blown head gasket.

 

Wow...ARP bolts saving head gaskets...if they can do that, maybe they can save the economy too!

 

You might have streched a rod bolt. It wont show up now....but when you least want it to it might put a rod thru the block

 

Just what I said a little while ago...

 

lol i didnt get it til the last line when u said single "springs"

 

Ahh man, now you guys got me all worried again. How long does it take for a stretched bolt to show its ugly head?

Can you stretch just one rod bolt? If they stretched I would think the rod cap would be loose and that I would hear.

 

A 2-3-2 shift was done on my old gsr before i got it, i watched the tach go into the black (the numbers stop at 9500) and it still ran like a champ for 30k more miles and lived through nitrous and then boost