91 vette
Thread Starter
Burning Brakes
Joined: Jun 2003
Posts: 949
Likes: 0
From: smithtown ny
91 vette
will the distributor or the ingition module or both if if bad cause knock retard??? because thats what i'm getting at wot those are the only two things on my car that are not changed i checked for codes and nothing so this would be whats left.
Thread Starter
Burning Brakes
Joined: Jun 2003
Posts: 949
Likes: 0
From: smithtown ny
Re: 91 vette (65Z01)
timing at 6btdc i had fuel up to 43psi now i droped it to 40psi with line off still the same there's nothing left to do i'm thinking custom prom for fuel and ignition or a bad pick up coil something in this area.
Thread Starter
Burning Brakes
Joined: Jun 2003
Posts: 949
Likes: 0
From: smithtown ny
Re: 91 vette (65Z01)
i didn't check that but if it's off do i keep raising pressure???? i bought 21# injectors from five-0-motorsport i wrote back to him to make sure and he said these are for the corvette tpi he told me they are actully 22# they are pink i don't know if you want to go to his website and check them out.
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Re: 91 vette (6spd)
If bumping fuel pressure relieves ping and/or bumps the O2 readings closer to 900mV I would bump it again. Keep an eye on the BLM and Integrator values in closed loop to assure they stay at 128 +/-6.
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Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Re: 91 vette (6spd)
I don't know about those injectors but rather look at their rated flow and the pressure at which they were rated.
Knowing this info you can compare their flow with the OEM units to get an idea of what they are flowing as you bump pressure.
Knowing this info you can compare their flow with the OEM units to get an idea of what they are flowing as you bump pressure.