Whats wrong with this pic???

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May 9, 2004 | 07:42 PM

TurboGSR00

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From: Irmo, Sc, US

Whats wrong with this pic???

So i was ran someone last night and this is what happened.......

Wideband was hooked up and ran 12.1 a/f and temp was fine........ dont know what caused this to happen.... I was running 15psi ... JE pistons and eagle rods.... The piston and valve burnt up on #3 Cylinder... Any ideas??

May 9, 2004 | 07:45 PM

Turboteggy

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From: Ottawa, Canada

Re: Whats wrong with this pic??? (TurboGSR00)

I feel your pain brother.......

May 9, 2004 | 07:46 PM

MikeMAN

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From: Burlington, WI, USA

Re: Whats wrong with this pic??? (TurboGSR00)

hmm, what running was tapped for your EGT?

mike

May 9, 2004 | 07:50 PM

DIRep972

Smarter than you

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From: Third Coast, united states

Re: Whats wrong with this pic??? (TurboGSR00)

Probably were running too much timing and you detonated.

May 9, 2004 | 07:52 PM

MikeMAN

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From: Burlington, WI, USA

Re: Whats wrong with this pic??? (DIRep972)

yea, that valve + piston definately aren't "burnt up" they are EXPLODED up (detonation)

mike

May 9, 2004 | 07:57 PM

11psiTurboSI

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From: Minnesota

Re: Whats wrong with this pic??? (MikeMAN)

ouch!!!

May 9, 2004 | 07:57 PM

TurboGSR00

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From: Irmo, Sc, US

O2 sensor was welded into the downpipe for the wideband... Ran perfect for a year tuned like this...

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May 9, 2004 | 08:04 PM

Tinker219

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From: Traverse City, Michigan, USA

Re: (TurboGSR00)

Until a bad drop of gas entered the cylinder

May 9, 2004 | 08:31 PM

FOrSfEd

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From: TurBlowVille, SC, USA

Re: (Tinker219)

Damn Harry I heard about that. Hope yourable to get it back on the road soon.

May 9, 2004 | 08:35 PM

#10

MikeMAN

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From: Burlington, WI, USA

Re: (Tinker219)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tinker219 »</TD></TR><TR><TD CLASS="quote">Until a bad drop of gas entered the cylinder

</TD></TR></TABLE>

yea, thats all it takes

May 9, 2004 | 10:29 PM

#11

LBR92DA-T

Joined: Jun 2003

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From: Fremont, CA

kinda looks like my #4 piston when i blew.. hope things work out... is your motor sleeved or just stock sleeves?

May 9, 2004 | 11:39 PM

#12

dasher

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From: Somewhere in, FL, USA

Re: Whats wrong with this pic??? (TurboGSR00)

Whats your fuel management?

May 10, 2004 | 05:18 AM

#13

RTE117

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From: Cincinnati, Ohio

Re: Whats wrong with this pic??? (TurboGSR00)

Burnt valve.. Ouchies

May 10, 2004 | 05:35 AM

#14

FOrSfEd

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From: TurBlowVille, SC, USA

Re: Whats wrong with this pic??? (IDriveAHonda)

It's a Benson sleeved block, and he is running a hondata s200b with I believe 720cc injectors.

May 10, 2004 | 05:42 AM

#15

Dr Pooface

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From: Vancity, b.c, CANADA

Re: Whats wrong with this pic??? (FOrSfEd)

Injector failure?

May 10, 2004 | 05:45 AM

#16

dasher

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From: Somewhere in, FL, USA

Re: Whats wrong with this pic??? (TurboGSR00)

Did you rev your car really high when this happened ???

May 10, 2004 | 06:12 AM

#17

TurboGSR00

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From: Irmo, Sc, US

Re: Whats wrong with this pic??? (dasher)

I ran it to 7k RPMS in 5th gear at about 150......... they are 740cc

May 10, 2004 | 06:19 AM

#18

vaporboy12

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From: Gettin sum, maryland

thats a lot of load on the motor!!!

May 10, 2004 | 06:19 AM

#19

dasher

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From: Somewhere in, FL, USA

Re: Whats wrong with this pic??? (TurboGSR00)

hmmm , i was thinking valve float - but 7k is really not that high... I would check those injectors and see if one of them siezed/// do you remember where which gas station you bought your gas from?

May 10, 2004 | 06:23 AM

#20

dasher

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From: Somewhere in, FL, USA

Re: (vaporboy12)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vaporboy12 »</TD></TR><TR><TD CLASS="quote">thats a lot of load on the motor!!!</TD></TR></TABLE>

... I agree .. 5th gear pulls on the highway at 150 mph do put alot of stress on the engine...

were you doing extended 5 th gear pulls repeatedly or did you simply do one throttle blip on the highway?

May 10, 2004 | 06:39 AM

#21

TurboGSR00

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From: Irmo, Sc, US

Re: (dasher)

It was 2 pulls of 150........... I got gas from sunoco......Injector was fine.... If it heated up so much wouldnt the other ones be messed up too..???

May 10, 2004 | 07:00 AM

#22

DD_JonnyLee

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From: Greenville, S.C

Re: (TurboGSR00)

damn, that sucks

May 10, 2004 | 07:05 AM

#23

m R g S r

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From: NYC bitchessss

Re: (GitrDone)

Are the cylinder walls scratched? If not, just give it a light hone and throw in a new piston. Are those stock valves?

May 10, 2004 | 07:05 AM

#24

DaX

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Re: (TurboGSR00)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TurboGSR00 »</TD></TR><TR><TD CLASS="quote">It was 2 pulls of 150........... I got gas from sunoco......Injector was fine.... If it heated up so much wouldnt the other ones be messed up too..???</TD></TR></TABLE>

Not really. Not all four cylinders will blow simultaneously...one will fail then it's all over.

May 10, 2004 | 07:05 AM

#25

MiraiZ

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Joined: Oct 2000

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From: Yokohama, Japan, Japan

Re: (TurboGSR00)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TurboGSR00 »</TD></TR><TR><TD CLASS="quote">It was 2 pulls of 150........... I got gas from sunoco......Injector was fine.... If it heated up so much wouldnt the other ones be messed up too..???</TD></TR></TABLE>

ooo ouch!

Just a guess...but I don't think detonation is always semetrical and even across all cylinders. I only blew one piston...the other three were perfect...

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