7psi + detonation + stock internals= your gonna have a bad time
02-08-2005, 02:46 PM
#1
7psi + detonation + stock internals= your gonna have a bad time
some pics of my d15b after it detonated in fourth gear.
we found out that the timing was a bit to far advanced for the wee little d series. i have a sohc vtec zc on the way and the d15b is going to the machine shop for a rebuild
we found out that the timing was a bit to far advanced for the wee little d series. i have a sohc vtec zc on the way and the d15b is going to the machine shop for a rebuild
02-08-2005, 02:47 PM
#2
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Re: 7psi + detonation + stock internals= your gonna have a bad time (BADEG6)
wow doesn't look good, how much is the rebuild gonna cost you. At least you got a new motor to put in.
02-08-2005, 03:05 PM
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Re: (jlacoy82)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jlacoy82 »</TD></TR><TR><TD CLASS="quote">All I see are some carboned up pistons, Im an idiot, so what exactly are we looking at here that is wrong?</TD></TR></TABLE>
The photo isint that great but either the piston melted or broke by the intake valve relief.
The photo isint that great but either the piston melted or broke by the intake valve relief.
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02-08-2005, 06:40 PM
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Wow. Thats the EXACT same spot my piston/ringlands blew. Though, my car was at 10PSI and it was my throttle body gasket that was the culprit. Tons of unmetered air was entering my motor 
GL on the build.
GL on the build.
02-08-2005, 07:27 PM
#11
Re: 7psi + detonation + stock internals= your gonna have a bad time (Cee_mon)
the timing was advanced where it would be if the car were normally aspirated. oops. the cylinder wall looked bad but the motor didnt make any excess noise other than the misfire
02-08-2005, 07:32 PM
#13
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Re: 7psi + detonation + stock internals= your gonna have a bad time (VTC_ohgodnotagain_CiViC)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by VTC_ohgodnotagain_CiViC »</TD></TR><TR><TD CLASS="quote">Weak.
</TD></TR></TABLE>
lol
</TD></TR></TABLE>lol
02-08-2005, 07:56 PM
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Re: 7psi + detonation + stock internals= your gonna have a bad time (93turbo16)
your gasket leak would cause it to run rich. at an idle you would be allowing unmetered air in but in boost you are letting metered air out causing a rich condition (still not rich enough)
02-08-2005, 08:51 PM
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Re: 7psi + detonation + stock internals= your gonna have a bad time
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Dyzee »</TD></TR><TR><TD CLASS="quote">Wow. Thats the EXACT same spot my piston/ringlands blew. Though, my car was at 10PSI and it was my throttle body gasket that was the culprit. Tons of unmetered air was entering my motor</TD></TR></TABLE>
Whoever told you that is wrong.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BADEG6 »</TD></TR><TR><TD CLASS="quote">the timing was advanced where it would be if the car were normally aspirated. oops. the cylinder wall looked bad but the motor didnt make any excess noise other than the misfire</TD></TR></TABLE>
What were you using for management? If you have a normal system like uberdata, etc. The stock dist. timing is fine.
Whoever told you that is wrong.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BADEG6 »</TD></TR><TR><TD CLASS="quote">the timing was advanced where it would be if the car were normally aspirated. oops. the cylinder wall looked bad but the motor didnt make any excess noise other than the misfire</TD></TR></TABLE>
What were you using for management? If you have a normal system like uberdata, etc. The stock dist. timing is fine.
02-09-2005, 10:57 AM
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Re: 7psi + detonation + stock internals= your gonna have a bad time (BADEG6)
I remember when I was spraying my d15b7 and the vacuum line fell off of my FPR and the fuel pressure dropped.. My wideband showed 28:1 air/fuel when I was at full throttle spraying.. Same thing happend to me, the piston cracked in a few pieces..
Funny thing was that the pistons didnt break right away, it melted like 8 valves in the head so I just put anothe head on it and drove it for another few months(no nitrous).. When I put my turbo setup on it, it lasted for about an hour until the boost found the cracks in the piston and blew them apart..
Funny thing was that the pistons didnt break right away, it melted like 8 valves in the head so I just put anothe head on it and drove it for another few months(no nitrous).. When I put my turbo setup on it, it lasted for about an hour until the boost found the cracks in the piston and blew them apart..
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