Bettonracing

What's the overall ratio(s?) used for during 60-130mph (i.e. gear * final)? And what's the tire size?



For reference of how fast that 60-130mph is:
3.53 - Underground Racing TT Gallardo, 1,300 rwhp, 2-shifts
3.54 - Bob Helms, TT Viper
3.93 - 931 rwhp Supra, 88mm turbo, TH400 Auto, ET Drags
4.52 - Ford GT Mullet (994rwhp TT/SC)
4.55 - Ford GT Peak Completions (933rwhp TT)
4.8 - 900 rwhp Supra (88GT47, TH400, no NOS, drag radials)
4.9 - 940 rwhp Supra (35 psi)
5.1 - 840 rwhp Supra (30 psi)
5.26 - 997 GT3 RS TURBO / 1-shift
5.4 - 1,000 rwhp TT Viper
5.6 - Bugatti Veyron
5.72 - Subaru Impreza GC8, built motor, big turbo and 100 shot of nitrous
5.8 - Ford GT, Whipple S/C, 780 rwhp, 1-shift
5.9 - GSXR 1000 with bolt-ons
6.1 - Saleen S7 Twin Turbo
6.6 - Ford Cobra, Whipple S/C at 22 psi
6.9 - Mosler MT900S
7.0 - Ferrari Enzo
7.06 - C6 Z06; intake, tune, headers, cam, no cats, 560 rwhp, 2-shifts
7.24 - Mercedes SLR McLaren
7.25 - Stock 997 GT2 / 1-shift
7.3 - Porsche Carrera GT
7.3 - Ferrari Enzo
7.66 - 996 TT 'S' with K16/24 Hybrids, 4th gear pull only
7.74 - Ferrari 458
7.75 - Shelby GT500, Kenne Bell, 700+ rwhp, 1-shift
7.8 - Lamborghini LP640, stock, 2-shifts
7.8 - Chevrolet Corvette C6 Z06, stock, 2-shifts
7.8 - Chevrolet Corvette ZR1

Regards,

Kurt

ronshearer

Time to build something a little more aerodynamic. With a big block and twin 91's!

dan08

iTrader: (11)

holy smokes.

Beetspeed

Cool!
What exact BW turbo is this? S400SX-something? but which one?

Thanks!
Walter

DouglasAutoworks

iTrader: (4)

3.545 final drive ratio and 25.4" tire height (235/4517 Bridgestone RE-01's)

DouglasAutoworks

iTrader: (4)

SX-400 80mm with a 1.22 T4 divided turbine housing

DouglasAutoworks

iTrader: (4)

Let's push the little brick into the wind until there are no more threads left on the boost controller.

Bettonracing

What gears (ratios) are used b/t 60 & 130?

Thanks,

Kurt

1 fast evo 2

This pull was done in 2nd, 3rd and 4th gears. As I said earlier I was short shifting the car but looking at the speeds by gear I was really short shifting this thing.
1st gear is normally good for 65-70 mph
2nd = about 95 mph
3rd = about 135 mph
so if I'm lookin for the best 60-130 time I will short shift 1st a bit to start the run in 2nd then pull 2nd and 3rd all the way and that time should drop like a rock.
On the data it shows it really slowwed down when I shifted to 4th gear as it was only going 121 mph vs its usual 135 mph when I run it to where it should be.

As for the gear ratios I don't know what they are, they are standard Shep racing dogbox ratios.

P.S. - that is one badass transmission, and great service all the time from "The man "John Shepherd.


Mike Reichen

Bettonracing

Thanks for the detailed response.

Looking forward to seeing You guys set more records in the future.

Regards,
Kurt