BPU++ Supra - 11.3 @ 125MPH
Went back to the track to try and best my previous 11.5 @ 122MPH in the cooler weather. I also set a little personal goal some time back to try and beat my old Sandstone DR650, Stage II head VR-4's time of 11.4 @ 124.7MPH. I knew I had the ET in the bag, but wasn't expecting to top the MPH as well...! :cool: Temps were still unseasonably warm in the low 70's; previous best it was in the mid 80's. No changes to the car other than dropping my KYB struts from setting 3 to 1 (softer).
Pertinent mods:
Blitz SUS intake
RMM Downpipe
Apexi N1 catback
GReddy 3-Row FMIC
UR Cam Gears set to intake +2 Exhaust -3.5
UR Flywheel
ACT Turbo Xtreme Clutch
OBDII ECU
Blitz DSBC
Apexi NEO (completely zero'd out)
EGR &TRAC delete
TRD Diff
1pc Chromoly driveshaft
16" CCW Drag pack
100 octane from the pump
Dyno'd 468RWHP
http://www.youtube.com/watch?v=7b_q_lG_jt0
Saturday was supposed to be a regular Test n Tune but earlier in the week the track announced a 3-class 1/8 mile bracket race which ended up with a huge turnout. As a result I only got 3 runs in between the class runs.
1st Pass -- 2-step/Antilag would not engage for an unknown reason (tested it the day prior and it worked fine). I think the box is dead as later troubleshooting did not resolve. :sad: I was planning on coming out of the hole off the 2-step with lots of boost so my tire pressure was set accordingly low. Quick slip of the clutch and came out fairly decent with a 1.70 60' and then was locked out of 2nd gear, which always seems to happen when I slip this clutch hard (organic full-faced) and try to bang 2nd dirty. Wasted run and they only printed my 1/8 results only so I guess I would have been more pissed if it was a clean pass..!
Big blowup in the right lane around the 1000' mark which shut the track down for almost 2 hours.
2nd Pass -- The track was nicely prepped for the bracket racing so I did a shorter burnout to try and get some tire spin since I would be free-rev launching. Launched at 6k RPM with a very very quick slip and came out with a 1.69 60'. I took my time on the 1-2 shift; rest of the pass was clean until I got to about the 1000' and the car abruptly drifted to the left fairly hard so I got out of the gas completely and then back into it right as I crossed the traps. I can only assume the track was slick from the previous blow up, and since everyone was running 1/8 it didn't seem to affect them as much. I figured the pass was wasted and couldn't believe when I saw the slip -- 11.35 @ 118.7MPH..! I was happy but frustrated as hell -- doing the math I think it could have been a mid 11.2 had I been able to stay in it.
3rd Pass -- Let's try the left lane...! Even shorter burnout (which in hindsight I should have learned I needed more heat in the tires). Got very aggressive with the launch which stepped me sideways and a little out of the groove so I landed a crap 1.77 60'. The car felt loose all the way down the track, especially after the 1/8 so I wasn't expecting a great pass. Again I was pleasantly surprised with the slip, though -- 11.39 @ 125MPH
After almost 7hrs at the track and only 3 passes I decided to pack it in.
Slips:
http://i282.photobucket.com/albums/k...ips_111012.jpg
Overall pleased and frustrated at the same time. Not bad for a completely off-the-shelf, basic setup that anyone can replicate. :bigthumb: I knew the car had an 11.3 in it after my 11.50 a few months back, and now I know it has at least 11.1 in it exactly as it sits...! Unfortunately I may not find out, though; I've been itching to go single for a while and had held off to get some more BPU runs in. Not sure if I can resist the temptation any longer, though.
