ADVICE: shot rod through block
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From: Houston, TX, US
ADVICE: shot rod through block
Hey, as you guys may know, i have a GSR with the greddy turbo kit.
Straight to cliffnotes: Went to dyno to tune my car. Set up:
greddy turbo kit td05-18g
skunk2 im
3' exhaust/piping
apexi Power FC
550cc rc inj
avcr boost controller
__________________
long story short: car reached 295whp 236 torque @ 1 bar, went for another run and BOOM shot #3 rod through the bottom of the block, and melted the piston. (will post pics later, along with full detail incljding dyno plot.)
I think i ruined their dyno with all my car's oil.
NEXT STEP: i need to find a used b18c1 block.. some pistons/rods and im not sure about sleeving the block...
Need help...
Straight to cliffnotes: Went to dyno to tune my car. Set up:
greddy turbo kit td05-18g
skunk2 im
3' exhaust/piping
apexi Power FC
550cc rc inj
avcr boost controller
__________________
long story short: car reached 295whp 236 torque @ 1 bar, went for another run and BOOM shot #3 rod through the bottom of the block, and melted the piston. (will post pics later, along with full detail incljding dyno plot.)
I think i ruined their dyno with all my car's oil.
NEXT STEP: i need to find a used b18c1 block.. some pistons/rods and im not sure about sleeving the block...
Need help...
Re: ADVICE: shot rod through block (BoostinGSR)
Curious what your AFR looked like on that run?
https://honda-tech.com/zerothread?id=709866
this guy may 320whp on a stock B18C1
Modified by Muckman at 11:33 PM 12/18/2003
https://honda-tech.com/zerothread?id=709866
this guy may 320whp on a stock B18C1
Modified by Muckman at 11:33 PM 12/18/2003
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From: Islip, CA, USA
Re: ADVICE: shot rod through block (Muckman)
the block might be salvagable, sometimes tig welding the hole shut isnt too hard. have you taken the bottom end apart? if the crank, main caps etc.. are all still cherry, id get it resleeved by benson, rs, aebs and put in some forged internals. hit up the dyno again with a real kit and some power 
Thread Starter
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From: Houston, TX, US
Re: (psi420)
they said there were probally 3 factors in which could have cause some problems.
1. the injectors i had were used off of ebay, we encountered serveral small leaks in one of the inj throughout the day, but it seemed to have stopped leaking after we took them all out and cleaned them.
2. the power fc was also bought off e bay. but was told to be brand new. The shop i went to loaded up the base maps for my car the night before and everything ran smooth, but this morning they had horrible idle problems and had to change all the settings to follow up with the changes.
3. My damn engine could be just plain weak sauce. i've bent some valves about 1 year back. i had everything replaced and the compression was fine in all 4 cylinders BUT i had check engine lights for misfires in all my cylinders for as long as i had my turbo kit.
at the initial time of engine failure, the car was just about to hit boost @ 45mph. the car stuttered and busted soon after.
1. the injectors i had were used off of ebay, we encountered serveral small leaks in one of the inj throughout the day, but it seemed to have stopped leaking after we took them all out and cleaned them.
2. the power fc was also bought off e bay. but was told to be brand new. The shop i went to loaded up the base maps for my car the night before and everything ran smooth, but this morning they had horrible idle problems and had to change all the settings to follow up with the changes.
3. My damn engine could be just plain weak sauce. i've bent some valves about 1 year back. i had everything replaced and the compression was fine in all 4 cylinders BUT i had check engine lights for misfires in all my cylinders for as long as i had my turbo kit.
at the initial time of engine failure, the car was just about to hit boost @ 45mph. the car stuttered and busted soon after.
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From: Naples, Fl, USA
Re: (BoostinGSR)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BoostinGSR »</TD></TR><TR><TD CLASS="quote">
3. My damn engine could be just plain weak sauce. i've bent some valves about 1 year back. i had everything replaced and the compression was fine in all 4 cylinders BUT i had check engine lights for misfires in all my cylinders for as long as i had my turbo kit. </TD></TR></TABLE>
Ehh... I duuno, a weak/stressed motor means cracked ringlands, to melt a piston however means there was a tremendous amount of unchecked heat in the combustion chamber, an UNsafe amount of heat if it was enough to damage a piston like that, and rods don't just randomly snap without an incredible amount of force place on them. I think it was Corky Bell who noted that even at 1bar of boost, the increase in load on a connecting rod is only about 25%, and let's face it, there are too many folks here pushing ALOT of power on stock rods. Sounds to me like there was a series of catastrophic failures outside the scope of the internals leading to the demise of the motor. Just my .02..
3. My damn engine could be just plain weak sauce. i've bent some valves about 1 year back. i had everything replaced and the compression was fine in all 4 cylinders BUT i had check engine lights for misfires in all my cylinders for as long as i had my turbo kit. </TD></TR></TABLE>
Ehh... I duuno, a weak/stressed motor means cracked ringlands, to melt a piston however means there was a tremendous amount of unchecked heat in the combustion chamber, an UNsafe amount of heat if it was enough to damage a piston like that, and rods don't just randomly snap without an incredible amount of force place on them. I think it was Corky Bell who noted that even at 1bar of boost, the increase in load on a connecting rod is only about 25%, and let's face it, there are too many folks here pushing ALOT of power on stock rods. Sounds to me like there was a series of catastrophic failures outside the scope of the internals leading to the demise of the motor. Just my .02..
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From: Houston, TX, US
Re: (VTC_CiViC)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by VTC_CiViC »</TD></TR><TR><TD CLASS="quote">
Ehh... I duuno, a weak/stressed motor means cracked ringlands, to melt a piston however means there was a tremendous amount of unchecked heat in the combustion chamber, an UNsafe amount of heat if it was enough to damage a piston like that, </TD></TR></TABLE>
where should i check for problems leading to over heating..? my EGT was Very low in tempurature, everything was good, timing, duty cycle all well in the right range. Now you say problems with the combustion chamber, please elaborate because i want to find out what is the weak point of my engine....
Ehh... I duuno, a weak/stressed motor means cracked ringlands, to melt a piston however means there was a tremendous amount of unchecked heat in the combustion chamber, an UNsafe amount of heat if it was enough to damage a piston like that, </TD></TR></TABLE>
where should i check for problems leading to over heating..? my EGT was Very low in tempurature, everything was good, timing, duty cycle all well in the right range. Now you say problems with the combustion chamber, please elaborate because i want to find out what is the weak point of my engine....
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Joined: Aug 2001
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From: Naples, Fl, USA
Re: (vod)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vod »</TD></TR><TR><TD CLASS="quote">dont forget that the afc wasn't fixing the timing.
Doesn't it actually increase the timing because of the way it fools the ecu?</TD></TR></TABLE>
Part throttle boost is where the hack is the most dangerous because that's where the ECU advances timing the most in what it thinks is vacum, at WOT it acts like it would N/A regarding timing which is why you drop it a few degrees off the dizzy and you're A-ok
Doesn't it actually increase the timing because of the way it fools the ecu?</TD></TR></TABLE>
Part throttle boost is where the hack is the most dangerous because that's where the ECU advances timing the most in what it thinks is vacum, at WOT it acts like it would N/A regarding timing which is why you drop it a few degrees off the dizzy and you're A-ok
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Joined: Aug 2001
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From: Naples, Fl, USA
Re: (BoostinGSR)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BoostinGSR »</TD></TR><TR><TD CLASS="quote">
where should i check for problems leading to over heating..? my EGT was Very low in tempurature, everything was good, timing, duty cycle all well in the right range. Now you say problems with the combustion chamber, please elaborate because i want to find out what is the weak point of my engine....
</TD></TR></TABLE>
The tune. 12.6 on pump gas for 1bar on a stock motor is awfully lean IMO. Remember, these cast pistons aren't remotley as strong as forged units so they're far more susceptable to heat damage.. Somebody with alot of hands on engine building/tuning should chime in here to make sure i'm not talking out of my ****.
where should i check for problems leading to over heating..? my EGT was Very low in tempurature, everything was good, timing, duty cycle all well in the right range. Now you say problems with the combustion chamber, please elaborate because i want to find out what is the weak point of my engine....
</TD></TR></TABLE>
The tune. 12.6 on pump gas for 1bar on a stock motor is awfully lean IMO. Remember, these cast pistons aren't remotley as strong as forged units so they're far more susceptable to heat damage.. Somebody with alot of hands on engine building/tuning should chime in here to make sure i'm not talking out of my ****.
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From: Houston, TX, US
Re: ADVICE: shot rod through block (avex)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by avex »</TD></TR><TR><TD CLASS="quote">holy **** that sucks man.</TD></TR></TABLE>
yes sir it is.
yes sir it is.
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Joined: Jan 2003
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From: Tamworth, England, England
Re: (ChillOutWayne)
Its likely there was some det due to the lower airflow characteristics not cooling your cahrge enough = rod snaps as piston whats to go opposite direction to engine rotation.
Nect time you tune i'd try for a more conservative map, your cool EGT suggest you had an advanced ignition map rather than retarded which tend to lead to hotter EGT.
Some sort of knock detectin system would be good, on turbo cars its much harder to hear detonation.
Jonny
Nect time you tune i'd try for a more conservative map, your cool EGT suggest you had an advanced ignition map rather than retarded which tend to lead to hotter EGT.
Some sort of knock detectin system would be good, on turbo cars its much harder to hear detonation.
Jonny
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Posts: 8,613
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From: Naples, Fl, USA
Re: ADVICE: shot rod through block (m R g S r)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by m R g S r »</TD></TR><TR><TD CLASS="quote">VTC, so me boosting partial throttle on my car is dangerous? I am running an smc. </TD></TR></TABLE>
That's the most dangerous area to boost in while using a AFC hack..
That's the most dangerous area to boost in while using a AFC hack..
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From: Naples, Fl, USA
Re: ADVICE: shot rod through block (falconGSR)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by falconGSR »</TD></TR><TR><TD CLASS="quote">he said he had a apexi power FC not a vafc?
sounds like too much ignition advance.</TD></TR></TABLE>
Actually he said he has an smc, I don't think you read the person I quoted.
sounds like too much ignition advance.</TD></TR></TABLE>
Actually he said he has an smc, I don't think you read the person I quoted.