Procharger & Another Blown Engine
12-22-2003, 11:20 AM
#41
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Originally posted by elektrik_juggernaut
this is a damn shame.......my detonation gets really bad at 6488 rpms......i'd probably be in your shoes too if i had ever went to 6500........i think daking350 is looking for a spare motor that he can build......maybe he'll buy your block
this is a damn shame.......my detonation gets really bad at 6488 rpms......i'd probably be in your shoes too if i had ever went to 6500........i think daking350 is looking for a spare motor that he can build......maybe he'll buy your block
12-22-2003, 12:47 PM
#42
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I an truely sorry to hear your motor went, But in all reality I do not think even an ounce of blame can be placed torward ATI. Mabye the VQ just can't handle it, mabye it was poorly tuned. Who knows. Mabye it was bad gas, mabye your fuel pump wasn't getting enough voltage.
I have been thinking mabye we should over-toruqe our knock sensors to get a little extra timing retard on a FI 350z. Mine is stock, someone should give that a try.
Honestly I do not trust the aeromotive electronic fpr / pump that ati includes with thier kit. Changing temps can vary your alternator & battery output a lot, and that directly effects your fuel pump voltage and flow of the pump.
I have been thinking mabye we should over-toruqe our knock sensors to get a little extra timing retard on a FI 350z. Mine is stock, someone should give that a try.
Honestly I do not trust the aeromotive electronic fpr / pump that ati includes with thier kit. Changing temps can vary your alternator & battery output a lot, and that directly effects your fuel pump voltage and flow of the pump.
12-22-2003, 05:05 PM
#43
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FYI...........A/F after install - 12:1
Changes after initital install were plugs(the colder ones) and the Crawford Plenum(hours before it happened). Also install was completed in October 90+ degree weather at high humidity. Engine died with severe detonation on the one cold day of the year in Miami.......like 40+ degrees very low humidity.
Due to the nature of the ECM my new motor will have a standalone engine management sys w/ logging and wideband O2's for both banks. I think(IMHO) that the timing map on the stock computer sucks and the sensors are apparently not sufficient.............who knows, not really the ATI unit itself, more of a tuning issue............and the tuning is not too user friendly unless you have access to a dyno and can reprogram the ECM to fit the situation(weather, elevation, fuel quality etc)......which unless you are best buddies with TQ thats prob not going to happen. Like I said this is just the sense I am getting in my research/reading others opinions/personal exp/and effort to build a new motor.
Robin
Changes after initital install were plugs(the colder ones) and the Crawford Plenum(hours before it happened). Also install was completed in October 90+ degree weather at high humidity. Engine died with severe detonation on the one cold day of the year in Miami.......like 40+ degrees very low humidity.
Due to the nature of the ECM my new motor will have a standalone engine management sys w/ logging and wideband O2's for both banks. I think(IMHO) that the timing map on the stock computer sucks and the sensors are apparently not sufficient.............who knows, not really the ATI unit itself, more of a tuning issue............and the tuning is not too user friendly unless you have access to a dyno and can reprogram the ECM to fit the situation(weather, elevation, fuel quality etc)......which unless you are best buddies with TQ thats prob not going to happen. Like I said this is just the sense I am getting in my research/reading others opinions/personal exp/and effort to build a new motor.
Robin
12-22-2003, 05:45 PM
#46
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LOL, I can think of a lot of things I have done that looking back on them were definitly not a good idea
I guess I can chalk this one up too
Robin......back in the Cobra
I guess I can chalk this one up too
Robin......back in the Cobra
12-22-2003, 05:54 PM
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Absolutely.......well tuned
Originally posted by jesseenglish
Ouch, no tuning after plenum change. Probably not a good idea in retrospect. Still I'm sorry for your loss, good luck with your upgrade.
Ouch, no tuning after plenum change. Probably not a good idea in retrospect. Still I'm sorry for your loss, good luck with your upgrade.
Things will only get better, Robin
Season's Greetings from the Northeast!
Gerald
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PS: Jesse, you'll need that J & S knock sensor
12-22-2003, 07:14 PM
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Originally posted by abogada001
BTW, you think Infiniti will replace my motor under warranty
BTW, you think Infiniti will replace my motor under warranty
