CAMARO6 - View Single Post

NG329 · 07-31-2022, 09:29 PM

Okay guys so basically the day went well but the car was quirky as hell.

Pirelli DH Slicks 315/680/18 Front and 325/680/18 Rear.

I changed the Circumference in HP tuners to:

Rear: 325/680/18 = 2154mm

Front: 305/680/18 = 2165mm

Unfortunately that didn't help with any of the codes the car was throwing. I guess it only helped with the speedometer.

I received the following codes throughout the day:

- Tire Sensor Errors
- The Traction Control light stayed on. I disabled the system and then it would turn itself back on randomly. Very frustrating.
- Rear Axle
- Fuel Pump Sensor B Low voltage Code U18A2 Weird!!!!!

After the track day, I set the tire circumference back to stock, flashed the ECM and mounted the OEM tires. The car was fine on the 3hr drive home. Not a single error code.

So I'm going to have the Tire Pressure Sensors in the wheels programmed and hopefully that will get rid of the errors next time.

Fast lap time of the day was a 1:12.20 and I lost some momentum due to traffic. That would have been a 1:11.x lap.

The Pirellis held up great and they did not cord after approx. 160 hard miles. So for me, 2 track days for $700 in tires is quite the bargain since I corded the GY3R after only 1 day. I think that will be my GoTo going forward.

As far as how the tires felt on track, grip was amazing and it was consistent. The tires NEVER LET GO and my fastest laps came during the final session. Ambient temp was 90*F and it took approximately 1.5 laps to get heat into the tires. I ran 32psi hot off the track after every session but started the day with 26psi front and 28psi rear. The Pirelli does have a softer sidewall and you really do notice it when you load the front in the corners. It took me some getting used to because I like my car feeling as flat as possible but eventually it all came good and I had tons of confidence to push the car. I feel that the Hoosier A7/R7 would be a closer resemblance to the GY3R just based on sidewall design. I may try those in the future as an alternative.

So now I'm going to take a few weeks off to recoup some $$$$ but at the next event I'm going to try and see if programming the sensors in the Apex wheels resolve the error codes I received today.

....to be continued....

07-31-2022, 09:29 PM	#54
NG329 Drives: Chevrolet Camaro ZL1 1LE Join Date: Oct 2021 Location: NY Posts: 855	Okay guys so basically the day went well but the car was quirky as hell. Pirelli DH Slicks 315/680/18 Front and 325/680/18 Rear. I changed the Circumference in HP tuners to: Rear: 325/680/18 = 2154mm Front: 305/680/18 = 2165mm Unfortunately that didn't help with any of the codes the car was throwing. I guess it only helped with the speedometer. I received the following codes throughout the day: - Tire Sensor Errors - The Traction Control light stayed on. I disabled the system and then it would turn itself back on randomly. Very frustrating. - Rear Axle - Fuel Pump Sensor B Low voltage Code U18A2 Weird!!!!! After the track day, I set the tire circumference back to stock, flashed the ECM and mounted the OEM tires. The car was fine on the 3hr drive home. Not a single error code. So I'm going to have the Tire Pressure Sensors in the wheels programmed and hopefully that will get rid of the errors next time. Fast lap time of the day was a 1:12.20 and I lost some momentum due to traffic. That would have been a 1:11.x lap. The Pirellis held up great and they did not cord after approx. 160 hard miles. So for me, 2 track days for $700 in tires is quite the bargain since I corded the GY3R after only 1 day. I think that will be my GoTo going forward. As far as how the tires felt on track, grip was amazing and it was consistent. The tires NEVER LET GO and my fastest laps came during the final session. Ambient temp was 90*F and it took approximately 1.5 laps to get heat into the tires. I ran 32psi hot off the track after every session but started the day with 26psi front and 28psi rear. The Pirelli does have a softer sidewall and you really do notice it when you load the front in the corners. It took me some getting used to because I like my car feeling as flat as possible but eventually it all came good and I had tons of confidence to push the car. I feel that the Hoosier A7/R7 would be a closer resemblance to the GY3R just based on sidewall design. I may try those in the future as an alternative. So now I'm going to take a few weeks off to recoup some $$$$ but at the next event I'm going to try and see if programming the sensors in the Apex wheels resolve the error codes I received today. ....to be continued....