in my case no. running a dragy and letting the car shift compared to me shifting at 5800-6k is a .5-.75 difference slower in full auto. the car falls off its power band so much after 5800-6k same night on the same road ive seen a best of 8.6 DA is 5750 manual shifting to a worse of 10.10 in auto. but average of 8.8 in manual and 9.5 in auto.
The shifts are the same speed but there is a 50-100ms lag from the paddle to the ECU. On the stock turbo I tried to shift at 55-5600RPMs, because I wanted the shift to happen at 5700rpms or so.
The recommended factory pressure is 37 cold. If you care just about a straight line, yeah go lower on the PSI. But, I feel like the car handles more confidently with 37/37 F/R vs any staggered psi. At 32, it's just not as confidence inspiring.
I've always kinda ignored recommended settings and run what feels best, usually a little higher than what they suggest for most cars. Some like my Mustang i ran as high as 40psi cold in the tires as it felt much better. My Supra tire placard in the door shows 38psi recommended and i run 37 front and 30 rear but none of my setups are OEM wheels and tires. I run Invo up front and NT05r's in the back
Thank you both for the information. I must be feeling the lag between tapping the shifter and the transmission starting the process to up-shift. I know about the hesitation to up-shift when getting high in the rev range (and out of the power band), but it catches me by surprise every time and I find myself hitting the rev limiter. I'm sure I sound like a total noob with my loud ass exhaust. ?
Do you have a 20 or 21? I just can’t believe there would be that much difference. Maybe in the 20 since the 21 power increases are mostly high RPM. There’s simply no way my car runs mid-11s by manually short shifting versus the 11.98 to 12.05 I ran in full auto.
0-60 in 3.5 seconds is impressive. I’ve always been an acceleration junky, good job.After a dealer visit for the brake recall, I finally got a new pair of PSS rear tires after 16000 miles plus few track days. Car is bone stock, bench unlocked recently and flashed with BM3 91 OTS map. Added a little octane booster.
After some practice, the result is pretty consistent around 3.8. The point is to avoid the tire spin and maintain the maximum traction.
10% power reduce for the 1st gear and 5% for the 2nd.
Tire pressure at 39 PSI, temperature around 95F, half tank.
NO launch control. I heard it is horrible....
VSC fully off
Sports mode
Manual shifting
Launch at 1500 RPM, then WOT
quick shift to 2nd gear around 4.5K rpm(Depending on how sticky the tire is), then WOT
So, the 2nd gear can have full traction all the way to the redline.
Final thoughts, tire is the key! Pretty sure a set of stickier tires could easily break 3.5 in stage 1.
I have a 2020, tuned though they dont look like there is much between them, i know once getting high hp numbers the manifold really shines on the 21+. but the high compression on the 20 with just tunes on both the 20 does outperform the 21 a little, mainly from the high compression, but you can see the fall off after 6k, if you shift closer to the 7k mark your past the meat of the torque. at 5800 or so it puts you right there on torque and power
I also want to say these are 60-130 times, not 1/4 mile times, i did not spend the time testing 1/4 times both ways after i was told but people much faster then me, and my own testing showed manually shifting at or right before 6k is best.
