C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

start up with sc

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Old Jun 8, 2003 | 04:18 PM
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old salt
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Default start up with sc

i have been working on getting my car running better. i have most of the tuning issues worked out execpt. starting. no matter what i do it seems i cant get enought fuel at cranking to fire up. i hit the air cleaner on the supercharger and it fires up and runs fine. this is only on warm startup. cold it fires up great. i have a 383 ,lt4 heads & intake, hotcam, 36 lb inj. paxton 10lb s.c. . any help would be appreciated.
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Old Jun 9, 2003 | 03:38 PM
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Default Re: start up with sc (old salt)

i hit the air cleaner on the supercharger and it fires up and runs fine.
???Could you define that?! And are you sure it needs more fuel? On mine I've found that it has a hot soak restart rich condition-which is the most common one. I've had to decrease the crank fuel vs temp table to help out with it.
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Old Jun 9, 2003 | 07:51 PM
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Default Re: start up with sc (drive it)

i usually hit it with a spray of fuel or carb cleaner.
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Old Jun 10, 2003 | 01:33 AM
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Default Re: start up with sc (old salt)

Does sound like it's lean then...increase the crank fuel pulse width vs coolant temp table should do it.
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Old Jun 14, 2003 | 02:12 PM
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Default Re: start up with sc (drive it)

thats what i was thinking. at idle my injector p/w is around 10 when i am cranking it is about 4 to 5. i was looking in tunercat and couldnt find a "warm start" or cranking enrichment table. also my gms per sec from my maf shows 00 at cranking is this normal?
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