I love to learn things......I don't love learning them in the middle of trying to race however!
This weekend was quite a learning experience. We took the GTR to the French Lick, Indiana WannaGOFAST 1/2 mile event. I've ran two other 1/2 mile events before. One in Nick's full bolt on GTR running 166.54 mph and then in my car last year in Georgia running 192.xx mph on the Xona Rotor Reds.
We took the car as it sits pictured here (with the exception of no slicks) the car ran email@example.com mph and then I drove it all over the place all week. Full interior, full exhaust with muffler, local grocery store E80 in the tank. For this event I put the FFT 18" rear wheels with Nitto NT05R tires and the fronts were FFT 19" with Michelin Pilot Sports, same as I have been driving it around on the streets. That was the first HUGE mistake, the car was literally all over the place in 1st, 2nd and then the first part of 3rd gear, zero traction.
The weather conditions/elevation had to be exceptional, my boost is dead on here at all times, it was dialed in at 35.xx psi and doesn't ever need touched. After two aborted runs I noticed the knock I was seeing was from the boost being nearly 39 psi and running off the last column in my timing map which was for 35 psi on E80.
I ended up taking all the boost out of 1st gear, cutting the WGDC by an additional 10%, dropping the air pressure way down in the tires and turning the traction control off completely so I could just pedal the car to try to get a clean pass. After all that screwing around I ended up with a best pass of 199.29 mph, that pass I only lifted a total of 6 times to keep the car straight.
For anyone making this type of power in a GTR, I'd HIGHLY recommend running nothing but a bad ass drag radial front and rear on the car. That's how I had the car in Georgia and could actually launch it, rather than roll it out, back pedal to keep it straight and fight it the entire way.
I wanted one 200 mph run and this was going to be the end of the 1/2 mile stuff for me........well 199.29 isn't 200 and I'll be going back. I won't speculate how fast it would have went....you call can do that.
With the 35 psi of boost and ambient temps around 75 degrees on my 199 mph pass, the air intake temps with our BFIC started at 102F and ended at 142 F. That's damn incredible.
We are also running our four port Pro Billet Catch can on the car. I forgot to check it after two drag events and the week of driving the car, so before the first run we drained it, I had a 16 oz coffee cup we drained it into, I had about 3/4" of oil in it. So the can is doing the job, no oil vapor on the filter and it's keeping the intercooler and pipes clean.
Definitely looking forward to going back to another 1/2 mile event with the right tires on the car to see what it will actually do. It was pretty stupid of me to be honest.
There are a few pics of the car this weekend and the MPH slip. Also a short video clip to show you guys how hard it was to keep the car straight in 1-3. In the video here I nearly clipped the large green cones that had set up in the centerline and had to lift again to get the car straight enough to continue, this was a 198 mph run.