For tuning purposes, what is a good starting point for fuel pressure? My '86 GN has 43 # injectors (mfg unknown) with a 93 octane street chip (mfg unknown) and I do use 93 gas. At 42 psi the 02's are in the 850+ range @ WOT, but the BL is 132/135 at cruise. Definitely idles better as fuel pressure is increased. I tried 38 psi and the O2's were in the lower 800's, but the BL was at 150 cruise. Oh, knock definitely reduced at 42 psi (3 at low rpm approx 15 psi boost). Should I try 45 psi? Your comments are much appreciated. thanks.
Fuel Pressure for 43# Injectors?
- Thread starter tomjon
- Start date
turbot2112
Active Member
- Joined
- Jun 12, 2001
ive got 009 injectors and set fuel pressure at 43 line off. try to find what injectors you have and then get yourself a chip from jim testa.
