SVO 42lb Injector Ratings
02-03-2006, 12:31 AM
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SVO 42lb Injector Ratings Ok, I've read the sticky and it looks like people either use 43.5 psi or 40 for their 42lb Ford injectors. Is there any clarification on which to use yet? I've tuned at 43.5 right now and my ve table is showing a little lean. The car also backfires until in enters closed loop. I don't really want to start working to ve table until I'm sure I'm using the correct injector ratings. If 43.5 is correct, the backfiring confuses me some. Thanks for the help!
02-03-2006, 01:16 AM
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Originally Posted by RedHardSupra
42lb/min@43.5psi is what i use. done it on many cars, no problems whatsoever
02-05-2006, 12:30 PM
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Originally Posted by RedHardSupra
send me your tune and some logs
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02-05-2006, 03:44 PM
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Originally Posted by RedHardSupra
your MAF is broken, shows a permanent 0.31lb/min 
disconnect it, car should run fine.
disconnect it, car should run fine.
02-05-2006, 04:15 PM
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Thanks anyway. Think it may have anything to do with afterstart or drive enrichment? Just thinking maybe its adding too much fuel on startup with the cam.
02-05-2006, 04:18 PM
#11
startups look fine, you just get massive knock with what looks like no reason, low rpm, low tps. your ve is ok, your injectors are close enough (i don't know what your fuel pressure is to calculate them really), spark tables, both driving and idle seem ok. i compared it to a similar car for which i have a tune, and i can't spot any obvious offenders.
02-05-2006, 04:26 PM
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Originally Posted by RedHardSupra
startups look fine, you just get massive knock with what looks like no reason, low rpm, low tps. your ve is ok, your injectors are close enough (i don't know what your fuel pressure is to calculate them really), spark tables, both driving and idle seem ok. i compared it to a similar car for which i have a tune, and i can't spot any obvious offenders.
02-05-2006, 06:22 PM
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Originally Posted by oange ss
hot idle or cold idle ?
02-06-2006, 12:52 AM
#17
i looked at your OLFA and it looks identical comparing to another TR224 car tune i got and i know it drives well. same with spark, spark in idle, etc. i couldn't see anything that would stick out in any normal ways. the fuel trims going the opposite ways on deceleration however do make me think that you either have a very subtle leak somewhere, or your O2s are just going south.
