Analize this run.
Thread Starter
TECH Regular
Joined: Feb 2003
Posts: 444
Likes: 1
From: Bahrain
Analize this run. Did a dyno run on the 99Z, this is the first run:
Second run:
The A/F ratio seems very lean, I was told that it's 1.5 point more than actual. Still it's lean.
What could be the cause of all the noise at the graph, is it valve float, missfire or lack of fuel.
I measured the idle fuel pressure and it was 61 psi, and when revd it drops to 58. I just replace the fuel pump assembly a few months back with an original unit.
Second run:
The A/F ratio seems very lean, I was told that it's 1.5 point more than actual. Still it's lean.
What could be the cause of all the noise at the graph, is it valve float, missfire or lack of fuel.
I measured the idle fuel pressure and it was 61 psi, and when revd it drops to 58. I just replace the fuel pump assembly a few months back with an original unit.
is this factory cam?? if so your spinning it up way too high my car is set rev. limiter @6k and shifts @5600 alot of strain on the factory valvetrain...but someing isnt right and i would talk to either the tuner or get a dianostic(sp) done to see if its missing or what...way to lean as well...
