gurnE

Any got a calculator to work this out?

Or wanna work out mine

(2wd saph, standard transmission, 205/40/17, 7.3k rev limit)

Ta

St3V3_C

got to be about 70mph officer

Spiky

iTrader: (1)

not sure.

2wd saff on 205/50/15 is 160.9

so i guess you are over 170

and reply to my mobile pohone thread

bbigman2000

I work it out on 22.2mph per 1000rpm giving you 162 ish, but then you have your rolling radius increase so yeh wont be far off 165 imo

gearboxman

Try the ratio calculator on my website

Spiky

iTrader: (1)

it's definety more than 165

Mike Rainbird

iTrader: (3)

With a T3/4 turbo, you are unlikely to pull those revs in top .

gurnE

Top man

Standard cossie diff, 3.64:1?

Spiky

iTrader: (1)

mine hit limiter in 5th at 7000

on standard rims


is this likely??????

Mike Rainbird

iTrader: (3)

Spiky,
Depends how much credence you put in the standard Ford rev counter .

gurnE

What has the rev counter got to do with the limiter if you know the rev limit on the chip?

foreigneRS

for a proper top speed calculator that takes into account virtually all factors (not just engine speed * gearing = top speed, but important things like power/torque spread and gearing, aerodynamics etc), get lapsim from bosch.

available as a free download from bosch motorsport and if used properly and the time taken to enter all variables correctly is very accurate and very useful. top software, and top of bosch to make it freely available

Rs Gus

iTrader: (2)

bernie your calculator wont work

Spiky

iTrader: (1)

i hit the limiter in 5th, fook knows where the rev counter was at, stu put my rev limiter at 7000.


so next theory can it be done????

Mike Rainbird

iTrader: (3)

Unless you have a chip reader, how would you KNOW for sure what the limit was?

For example, say the rev limit was 6750, which you hit, but the rev counter was showing 7k .

Spiky

iTrader: (1)

because when i got stu to write my chip i told him i want a 7000 rev limit


:007)

Mike Rainbird

iTrader: (3)

Okay, then you would have hit approx 164mph .