Made the first pass at the dyno today, and I was pertty happy with the results. The car is a 2002 Firehawk with 36lb injectors, Walbro 340m, and a 6lb powerdyne kit that I bought used. It is running through a completely stock Firehawk exhaust. There is no tuning other than lowering the timing down to 16 degrees for everything over 2400 rpm and .8 g/cyl with LS1-Edit (thanks to Blackbird for the tip). It saw 7 lbs of boost at 6000 rpm.

The car was so rich that the wideband dropped below ten, then shut off in the middle of the run (nearly giving me a heart attack in the process as it defaulted to 17.5!). So now I have got to lean it out a bit and get it back somewhere close to stoich. So time to hit the PE tables - any suggestions on how much to subtract?

Any input or comments would be appreciated.

-Geoff

Torque / HP Curve

HP and A/F Curve

For the die-hards - ATAP Logs- Graph is of the third run.

 

Nice #'s..

 

way to go.

nice numbers even though it was so rich.

as long as your ltrims are going to zero at wot you can just start pulling fuel where needed. I would go with 5% increments. Pull some fuel, do a run, pull or add based on the a/f and repeat. shoot for 11.9:1

probably have about an hours work on a dyno and you will be seeing a bit over 400.

happy to see it's coming together so nicely so quickly.

<small>[ September 26, 2002, 10:15 PM: Message edited by: Blackbird ]</small>

 

You should go way past 400RWHP with a safe AF of 12:1 <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
Get tuning that sucker, that is the richest dyno graph I have ever seen hehehe <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
Cheers,
Chris