Andrew,

Fun isn't it? I found the best way to get rid of wheelhop was to add boost!

Roland,

I don't know about "smarter than you", but the computer will compensate for exhaust with the o2 sensor during normal driving, but at WOT the computer reverts to a stock fuel map and ignores the O2 sensor(open vs closed loop). The stock WOT maps can run lean without adding fuel pressure if modified. A session with the Sharktuner would fix this.

Jim

 

Roland,
Andrew already has a boost activated fuel pressure regulator (I think) so once a supercharged motor is setup for boost, what you gain from a free flowing exhaust pales in comparison to the extra air the blower is forcing through. So if anything, he would have to turn up his FMU a bit to compensate. Adding a RRFPR would not do anything on an already boosted 928.

 

Actually, no. It's just an adjustable FPR. Not Rising rate or boost activated. With the stock LH fuel maps, I would be running lean. Rolans is right. But through the SharkTuner, we were able to develop a custom fuel map to compensate for lean issues... well almost compensate.

 

Roland,

We are creating custom mapped chips for our SC kits, so the subject of increasing fuel pressure etc. via an AFPR is pretty much mute. Our systems are designed to run at stock fuel pressures, fuel mods (and now timing mods) are done via computer remapping just as the factory originally did it. We are still using an AFPR with our SC kits (set at stock FP) just as a "safety net" in case simple changes are needed to make sure he is not running lean at WOT until final tuning is done. Also this allows the same safety net to allow for adjustment in case of MAF degradation etc if/when that ever occurs.

Currently Andrew is running on a quick 1-2 hour road tune concentrating on making his system safe and is not even close to being optimized (time crunch at SITM). Now that we finally have the EZK SharkTuner software (thanks John) we will be creating an optimized base chip set on the dyno for Andrew with custom Fuel and Ignition mapping matched to his current mods. Later if he wishes he can use our SharkTuner to do even more fine tuning, custom tailored to his 928 on the dyno.

Andrew,

Cool video, thanks for sharing!

 

I enjoyed the ant the most. Well that and you running.

 

I thought the ant was VERY cool too!

 

NICE! now, for the next one, run faster, burn out, and drive off. It is obvious that you drove out of frame and then stopped.

 

That was awesome! I think I saw that ant crap a little bit.

 

Haha...you run like a girl!

 

Haha... you can't do a burnout!

 

BTW, how's that July release date for the K-jet kits (stipulated on your website) looking?

 

My 9-3 can, and it gets 34mpg.

 

No date listed for K-Jets, you may have confused the July testing of the Euro S LH version. The CIS/K-Jet version is the last one on the schedule.

Sorry for the confusion, I will make that clearer so there is no misunderstanding.

 

Time for a brake stand!!!!

mk

 

Interesting, so static fuel pressure is bumped up - then the Shark Tuner does the rest with the injector pulses?