OP
OP
SMed08
Active Member
Another day at the track, another personal best. Best time was 11.8s at 117.7MPH with a 1.8s 60ft!!
Very happy with this! Especially as I think I can get another 0.1 in the right conditions. Very strong headwind today, and a higher density altitude of about 150m hence the slower MPH.
Still struggling with launching, definitely still need to take it easy off the line as it wants to spin. It's about finding a good roll out speed, and easing into the throttle with the right aggression. I managed it at least once, hence the 11.8 time. The rest were 12.1 or 12.3 if I really messed the launch up.
IATs were all starting at 38-39C, and peaked at 60-61 for every run. The only exception was the first run after the lunch break where starting IAT was 34C.
Boost was up slightly to 11.4 psi, but take that with a massive pinch of salt. I'm using an iPhone app that has an extremely slow refresh rate, so not accurate for fine readings like that. But under the same conditions, last time boost never went over 11.0 psi.
I think my belt is slipping though, as the readings seemed slightly erratic (I record the my phone screen as a video to compare), and the supercharger belt is very frayed despite being about 6 months old). I've ordered a Gates HD green belt from the US, which gets great reviews. Doubt it will come before end of the month though.
My plan for the last 2 track sessions this year is to go to Shakespeare County Raceway. I've been told in places the track is a little rough (mainly after the finish line) but it's a much faster track. Better launches and the track seems to always have a tailwind, whereas Santa Pod always has a headwind. And you can still watch the cars run even from the staging lanes.
Very happy with this! Especially as I think I can get another 0.1 in the right conditions. Very strong headwind today, and a higher density altitude of about 150m hence the slower MPH.
Still struggling with launching, definitely still need to take it easy off the line as it wants to spin. It's about finding a good roll out speed, and easing into the throttle with the right aggression. I managed it at least once, hence the 11.8 time. The rest were 12.1 or 12.3 if I really messed the launch up.
IATs were all starting at 38-39C, and peaked at 60-61 for every run. The only exception was the first run after the lunch break where starting IAT was 34C.
Boost was up slightly to 11.4 psi, but take that with a massive pinch of salt. I'm using an iPhone app that has an extremely slow refresh rate, so not accurate for fine readings like that. But under the same conditions, last time boost never went over 11.0 psi.
I think my belt is slipping though, as the readings seemed slightly erratic (I record the my phone screen as a video to compare), and the supercharger belt is very frayed despite being about 6 months old). I've ordered a Gates HD green belt from the US, which gets great reviews. Doubt it will come before end of the month though.
My plan for the last 2 track sessions this year is to go to Shakespeare County Raceway. I've been told in places the track is a little rough (mainly after the finish line) but it's a much faster track. Better launches and the track seems to always have a tailwind, whereas Santa Pod always has a headwind. And you can still watch the cars run even from the staging lanes.
