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04-19-2012, 11:01 AM | #1 |
Lieutenant Colonel
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Drives: E82 N55 DCT
Join Date: Nov 2010
Location: STL, MO
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Not satisfied with 1/4-mile times
1st Run Ever: Burnout, No launch, gradual start in 1st gear
60' ... 3.380 330 ... 6.970 1/8 ... 9.915 MPH ... 83.62 1000 ... 12.455 1/4 ... 14.618 MPH ... 104.24 2nd Run: Burnout, Launch control, nothing but wheel spin 60' ... 2.360 330 ... 6.030 1/8 ... 9.062 MPH ... 81.59 1000 ... 11.668 1/4 ... 13.877 MPH ... 102.39 3rd Run: No burnout, Launch control, lots of wheel spin 60' ... 2.323 330 ... 5.856 1/8 ... 8.758 MPH ... 85.35 1000 ... 11.250 1/4 ... 13.356 MPH ... 106.99 4th Run: No burnout, Fastest yet, launch felt the best, launch control modulated down to about 2,000rpm, had some wheel hop in the rear 60' ... 2.156 330 ... 5.683 1/8 ... 8.592 MPH ... 85.06 1000 ... 11.092 1/4 ... 13.203 MPH ... 106.99 5th Run: No burnout, Just a test, launch from 2nd gear 60' ... 2.914 330 ... 6.693 1/8 ... 9.619 MPH ... 84.44 1000 ... 12.121 1/4 ... 14.223 MPH ... 107.62 6th Run: Burnout, launch control 60' ... 2.271 330 ... 5.889 1/8 ... 8.790 MPH ... 84.51 1000 ... 11.272 1/4 ... 13.359 MPH ... 108.69 7th Run: Burnout, launch control 60' ... 2.246 330 ... 5.795 1/8 ... 8.720 MPH ... 83.81 1000 ... 11.222 1/4 ... 13.340 MPH ... 107.12 Shouldn't I be in the 12's with my mods???
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04-19-2012, 11:05 AM | #2 |
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Your times will vary depending on temperature, tire grip, and the track itself. Normally i'd include elevation there, but altitude is doesn't really affect a turbo motor since they make their own atmosphere inside the motor. What kind of tires are you using? Did you lower psi? From what you posted up on the post it seems like your biggest improvement would come from your launch and 60 ft times.
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04-19-2012, 11:12 AM | #3 |
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DRs should drop you to the 12s, but there's something else up with your car.
Only trapping 108 is well under what a down pipe and jb4 n55 should be running. I'd expect you 111-113 at least. Unless was it one of those really hot days, high elevation (can't imagine you could find that in stl?
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04-19-2012, 12:22 PM | #4 | ||
Lieutenant Colonel
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Drives: E82 N55 DCT
Join Date: Nov 2010
Location: STL, MO
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Quote:
Should I be short shifting 1st gear to get into 2nd faster? Quote:
I would like to get a set of 17's with DR's in the near future. Also, important to note that the meth was not installed during these runs. So upgrades are: - 4" DP - BMW exhaust and midpipe - Charge pipe - FMIC - JB4 Stage 2, Map 2, standard settings - Ran the Injen intake, recently uninstalled and installed stock intake for last two runs - Lighter trunk, hood, battery - Lighter wheels than stock - KW V2's, damping setting on full-hard front and rear - Stock RFT's in front, 245/35, 50 psi, fairly new - Continental ContiSportContact 3 in rear, 255/35, 30 psi, pretty worn
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04-19-2012, 12:27 PM | #5 |
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Lower your psi to around 25psi for more grip in the rear....and that weather was cold. Summer sport tires don't really like temps below 45 degrees as their grip will fall off hard. Launching the DCT isn't easy b/c with upgrades it's too high and will cause wheel spin. Also you want to soften the rear shocks. You want some weight to transfer back there and help push those wheels down. Try leaving the shocks in the back about 1/2 way.
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