|
New fuel pump = retune?
Well, the new Racetronix pump is in, along with the hotwire hit and a new pressure regulator. Fuel pressue stays at 60 PSI according to my test gauge. The car seems to run different. Wideband shows a steadier AFR, but the big surprise is at WOT. When I tuned the car it was 12.9-13.0 at WOT. Now it sits at 12.1.
I guess when I tuned the car the factory pump was getting a little weak on the top end, or the regulator was going, or whatever, and the whole 'Garbage in Garbage out' thing got me. Need to touch up my tune.
__________________
1998 Z-28 - SLP lid - Ported TB - LS6 Intake - Dynatech SS headers/Catted Y - Magnaflow Exh - 3.42 - Yank SS3600 - UMI weld-in subframe connectors, Adj LCA, Adj PHB, Q1A TA - Bolt-in Relocation Brackets - Strano springs - Koni shocks - 17" C6Z06 wheels - 326HP/335ft-lbs - 12.35 @ 110.41
Quote:
Originally Posted by Blackbirdws6
I can appreciate a dream but this person needed some real friends.
|
|