HPF Chris
06-21-2009, 05:04 PM
I just got home after brutalizing the HPF Stage 4 M3 on the Leavenworth Drive from Seattle to Leavenworth. This was the first time I got to drive it with full power (race+meth = 910rwhp) using the new Precision Billet Wheel dual ballbearing 76 series turbo. This is also the first time I've run at this power level with the OS Giken differential. On this trip we took 50mph turns at 100+mph, did full throttle pulls from 50 to 150mph over and over again, hit the brakes hard slowing from 150mph to 100mph in what felt like less than one second for the turns. I've never driven a car like this, and I'm not even close to reaching the capability of the car.
Here's my opinion.... The new billet wheel 76 series turbo allows the car to drive around town with very little turbo lag. It really does get up even at the lower rpms. Dropping the hammer in 2nd gear is pointless, even with the 345s on the car, HOWEVER, dropping the hammer in 3rd gear is like launching out of a sling shot. I left the traction control on race mode and just put the pedal to the floor, pressed my head against the head rests because they are slammed there if you don't. What happened next can only be desribed as you are no longer where you were. What was interesting is that the cars following said I left block long tread marks on the road. I had no idea the car was spinning the tires. The OS Giken differential makes a MASSIVE difference and the HPF traction control kept the tires right on the edge. The black patches were described to me as intermittent sections of black with small breaks in between likely from the car being forced right on the edge of traction. This just was not possible before even with way less power. Those watching the car said once the power hit, they could see the rear end squat hard and then it was gone. Before the differential, the car would just go sideways, never squat, and spin the tires which was very frustrating.
The finishing touches we've put on the stage 4 has really elevated the capabilities of the car, and the control the driver now has is remarkable. I really love the driveability, and My Tran's stage 4 "SMG" M3 is probably my favorite daily driver which uses our single disk stage 3 clutch. From a performance and handling standpoint, not once did I even come close to the edge in the HPF M3. The car always took what I gave it, just went where I pointed the wheel and always asked for more.
For all of those I met at this event, I look forward to seeing you all at the next one.
Take care,
Chris.
Here's my opinion.... The new billet wheel 76 series turbo allows the car to drive around town with very little turbo lag. It really does get up even at the lower rpms. Dropping the hammer in 2nd gear is pointless, even with the 345s on the car, HOWEVER, dropping the hammer in 3rd gear is like launching out of a sling shot. I left the traction control on race mode and just put the pedal to the floor, pressed my head against the head rests because they are slammed there if you don't. What happened next can only be desribed as you are no longer where you were. What was interesting is that the cars following said I left block long tread marks on the road. I had no idea the car was spinning the tires. The OS Giken differential makes a MASSIVE difference and the HPF traction control kept the tires right on the edge. The black patches were described to me as intermittent sections of black with small breaks in between likely from the car being forced right on the edge of traction. This just was not possible before even with way less power. Those watching the car said once the power hit, they could see the rear end squat hard and then it was gone. Before the differential, the car would just go sideways, never squat, and spin the tires which was very frustrating.
The finishing touches we've put on the stage 4 has really elevated the capabilities of the car, and the control the driver now has is remarkable. I really love the driveability, and My Tran's stage 4 "SMG" M3 is probably my favorite daily driver which uses our single disk stage 3 clutch. From a performance and handling standpoint, not once did I even come close to the edge in the HPF M3. The car always took what I gave it, just went where I pointed the wheel and always asked for more.
For all of those I met at this event, I look forward to seeing you all at the next one.
Take care,
Chris.
