So since day one I've wondered what the "proper" set of data for these injectors are... I've heard two stories:
1) Whipple supplied data is spot on
2) Whipple supplied data is about 7% off
So when I originally loaded the Whipple tune it started up great, no problems, then I decided to switch to the "correct" injector flow rate info and I've run that ever since. The instant I switched the injector data, my MAF tables had to be reduced by about 7% across the board which I though was a clear sign the injector data was wrong...
Things are fine since, except a very small dip in rpm after startup occasionally.. It seems to start fine, then rev to say 1400rpm, then often comes down to about 500rpm then back up to 1200rpm and smooths out... it seemed to start later on in my tuning session after changing to the "correct" injector flow data... now Im playing with startup airflow and it's helping alot... startup is just about normal but doesnt seem as smooth as say a completely stock LS3.
So then I started wondering... I see the whipple kits state they flow 63lb/hr at 43.5psi. If I build a curve and equation for both flow rates and plug in 43.5psi... I get these flow rates just so see what set of data is closest to the advertised flow rate:
------------PSI----Flow
Whipple----43.5----64.58
"Correct"---43.5----60.23
Neither matches the Whipple advertised flow rate, however the Whipple supplied settings seem to be closer.
Here is a shot of the two side by side:
63lb Injectors.PNG
What would you run?