MeanMini:
Went to Freaky Friday night racing at Fayetteville Motorsports Park 4-8-2016. Left later than i wanted so i felt rushed and behind. But the racing still hadn't started until after i arrived.
My goals were to try and match some boost levels of previous runs last year and do some comparisons.
First run was crappy. Didn't get a good burnout, and spun badly on launch. Should have quick lifted and got back on, but i just wasn't thinking as it was my first race since last year.
More details and the timeslip are here http://www.turbo-mopar.com/forums/sh....php?p=1105255
The second run took forever in the staging lanes, and by then i decided i just wasn't having fun. Lots of bikes there, and way too many idiots. I thought the pits were a secondary dragstrip with the burnouts and bikes flying up and down. So i decided it was going to be my last run after the Pontiac G8 in front of me oiled down the track. I did get my second run in after the clean up. And with the help of a bit better burnout, and the fresh spray on the track Mini hooked a bit better. 2nd slip is in that linked thread. You can see in the video i shifted to 3rd a bit early, and before the shift light even lit. I probably missed out on a 12.9x because of that.
I was doing some comparisions and i figured i would look at average boost level through the run. Last year i dealt with some significant boost creep. Now, the boost is in check thanks to TU's super 38mm internal wastegate puck. Brian did a great job getting it modified to work (you need to rework the arm where the puck attaches) and it is doing a good job of maintaining the boost.
So run 1 the average boost was 15psi. (I calculated from the time the staging limiter was released, i think. When the turboflag bitcount was 200).
Run 2 the average boost was 15.7psi. And the run was very near identical to a previous run on 7-17-2015.
Interestingly however, the average boost calculated on the 7-17-2015 run was 17.1psi.
Also i found something and changed it Friday morning before racing. It always bothered me why the boost seemed to drop off after shifting.. i got to looking at it and found when going through the gvalve, the wastegate can wasn't getting bled off properly when lifting, or when the boost dropped. So in last years logs, you can see the boost drop after the shift and it stayed low until the turbo started creeping again.
I posted the logs of the racing on Friday 4-8-2016 in the other thread, but for convenience here they are again.