finally engine has called it quits
05-09-2010, 04:57 AM
#1
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finally engine has called it quits
last night the motor finally took a poop on me... its def a ring or ring land
i plan on driving the car around for the next 2 months and then rebuilding it...
i believe the main factor in this situation is a faulty fic unit that wouldnt retard timing, thus allowing detonation
i plan on driving the car around for the next 2 months and then rebuilding it...
i believe the main factor in this situation is a faulty fic unit that wouldnt retard timing, thus allowing detonation
05-09-2010, 01:08 PM
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05-09-2010, 03:42 PM
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well my car was pulling 9.5 degrees of timing during 3800-4800 becaus ei was getting detonation....and still that didnt help, which leads me to assume my aem wasnt retarding timing like it should...
mike has experienced aem units that havent retarted timing too
05-09-2010, 03:48 PM
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finally engine has called it quits
Originally Posted by cburglb34
Im confuseed, can you explain the fic failure better than that?
well my car was pulling 9.5 degrees of timing during 3800-4800 becaus ei was getting detonation....and still that didnt help, which leads me to assume my aem wasnt retarding timing like it should...
mike has experienced aem units that havent retarted timing too
05-09-2010, 03:59 PM
#12
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my car is very consistant, no boost spikes and no lean zone, it has always happened every sinc ei went anything above 6 psi i get detonations at 3800-4800 it sounds like little rice crispies popping in my engine bay, my tuner even noticed it and we prceeeded to retard timing there n no help so clearly the fic is failing
05-09-2010, 04:25 PM
#14
that sucks chunks!
but can you honestly say it was all the fic's fault? you did run untuned for a while, then you messed around with that safc thing for a bit too. your engine took a good beating with all your playing around.
but can you honestly say it was all the fic's fault? you did run untuned for a while, then you messed around with that safc thing for a bit too. your engine took a good beating with all your playing around.
05-09-2010, 05:16 PM
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anyways right now im just deciding wha bore to go with im thinking maybe 89 to be on the safe side
05-10-2010, 08:15 AM
#20
my car is very consistant, no boost spikes and no lean zone, it has always happened every sinc ei went anything above 6 psi i get detonations at 3800-4800 it sounds like little rice crispies popping in my engine bay, my tuner even noticed it and we prceeeded to retard timing there n no help so clearly the fic is failing
Sorry to hear about your bad luck Martin. Not to pour salt here but did you or your tuner measure the EGT after pulling all that timing? -9.5 degrees? If you had detonation-causing hot spots in the combustion chamber already, that might have made things worse. I realize that few people actually install EGT probes but you can get a pretty good idea from the primary O2's thermistor and a OBD scan tool. I'm not too sure about the accuracy of the temps reported but it will show increases and decreases in EGT. I recorded a high EGT of 1750F from the O2 with my first ECU-only setup and it scared me until I recorded the same EGT after going back to stock.
Anyway, I hope the damage is minimal and wish you good luck with the rebuild. Maybe WMI next time?
Last edited by ScionFred; 05-10-2010 at 09:43 AM.