BLM numbers?
Thread Starter
Racer
Joined: Apr 2002
Posts: 311
Likes: 0
From: Charleston S.C.
BLM numbers?
My BLM numbers are 136 left bank and 132 right bank. Can I move these closer to the ideal 128 by adjusting fuel pressure? If so, should I raise or lower the pressure?
Thanks,
Kerry
Thanks,
Kerry
Instructor
Joined: Jun 2000
Posts: 184
Likes: 0
From: Marysville, WA
Re: BLM numbers? (corvette4life)
the BLM numbers are lean. If you raise fuel pressure you will richen the fuel curve and move towards 128. However, I do not know if the L/R blms will close towards 128 evenly so both are reading 128. Is your vette stock?
Drifting
Joined: Mar 1999
Posts: 1,931
Likes: 1
From: Norcross GA
Re: BLM numbers? (corvette4life)
The BLM #'s say the engine is running lean based on the programmed fuel map. By increasing the fuel pressure, you will add more fuel, so the ECM won't have to add more to the programmed fuel map. i.e. Your BLM's should back down, closer to 128. The low side of 128 seems to work best on acceleration.
