charley, great to meet you and mark at the event. Awesome car, something to really appreciate. But on the other hand its so easy to walk by and think nothing. truly a bad ass car, and it showed as well.
hope to run with it again someday.
jake

I had just watched my in car right before watching your's. Something strange? The track seems to be moving way faster in your's. And the car seems kinda like it's on rails. Just don't understand.
Mike Holleman

Very cool. Looks like from the video its stable and the brakes work REALLY well.

Yea, did I mention that the JA has crazy insane brakes capable of dislodging retinas?

lol

Mark ... curious to know if there's any knowledge you gained while building JA that would be helpful to those building the ZR-1?

That's a good question, hopefully Mark will chime in. But both Mark and Charley told me that it was quite an undertaking getting the LS9 to work in a stand alone plaform. Just the fuel system alone is extremely advanced:





Electronic Returnless Fuel System (ERFS)

The electronic returnless fuel system is a microprocessor controlled fuel delivery system which transports fuel from the tank to the fuel rails. It functions as an electronic replacement for a traditional, mechanical fuel pressure regulator. A pressure vent valve within the fuel tank provides an added measure of over-pressure protection.

The electronic returnless fuel system (ERFS) is a demand based system which uses a fuel pump driven by a dedicated controller, the fuel pump control module (FPCM).

Desired fuel pressure is commanded by the ECM and transmitted to the FPCM via a GMLAN message. A liquid fuel pressure sensor provides the feedback the FPCM requires for Closed Loop fuel pressure control. For the GMX 245 SS application, the FPCM drives the fuel pump control module relay, also referred to as the fuel pump delivery control module, to control the brushless, 3-phase fuel pump.

Fuel Pump Control Module (FPCM)

The fuel pump flow control module (FPCM) is a serviceable GMLAN device mounted on the left, rear corner under the rear compartment floor panel carpet of the vehicle. The FPCM receives the desired fuel pressure message from the engine control module (ECM) and drives the FPCM relay to control the 3-phase fuel pump, located within the fuel tank, to achieve the desired fuel pressure. A liquid pressure sensor provides fuel pressure feedback to the FPCM.

The FPCM provides a control enable input to the FPCM relay to turn the 3-phase fuel pump ON and OFF. The control enable input is switched to ground to turn ON the pump. The FPCM also sends a 400 HZ pulse width module (PWM) signal to the FPCM relay to control the fuel pump speed by varying the duty cycle of this signal.

The FPCM relay controls the brushless, 3-phase fuel pump by providing variable, continuous PWM speed control. The nominal current supplied to the fuel pump is 15 amps, with a maximum limit of 25 amps.

Does this have anything to do because of the supercharger?:question:

What Was The Top Speed You Hit??????:d

Beteen turn 10 - 11 111.7 mph
Between turn 11 - 1 111.8 mph

Mark