What speed do you do at 2000 rpm ?

Johnny Dart · Post by **Johnny Dart** » Mon Apr 13, 15 6:24 pm

After fitting my axle, I am running a 3.73 axle ratio and 245/45/17 tyres, this gives me 38 mph at 2000 rpm.
This made me think - what speed are you guys doing per 2000 rpm.
Could you post it up here , I think it would be interesting, with rear tyre sizes

Use Dave's fantastic calculator :-

http://challenger.mpoli.fi/web/AUTOMATICchart.xls

Mick70RR · Post by **Mick70RR** » Mon Apr 13, 15 6:56 pm

55mph @ 2000rpm with the overdrive in, 43mph if it's out.

Johnny Dart · Post by **Johnny Dart** » Mon Apr 13, 15 7:22 pm

Mick70RR wrote:55mph @ 2000rpm with the overdrive in, 43mph if it's out.

Cool,
I supose we should say what size rear tyres you run also.

Mick70RR · Post by **Mick70RR** » Mon Apr 13, 15 7:28 pm

Rear tyres are 275/60R15.

Dutchrunner · Post by **Dutchrunner** » Mon Jul 13, 15 6:59 pm

62mph with Gearvendor and MT 275/60/R15 and StrangeS60 with 3.54

Pete · Post by **Pete** » Mon Jul 13, 15 7:03 pm

40mph.....4.10 gears and 30" tall tyres!!!

morgan · Post by **morgan** » Mon Jul 13, 15 8:00 pm

55ish
3.23 275/60x15

Johnny Dart · Post by **Johnny Dart** » Mon Jul 13, 15 9:50 pm

That makes my 38 mph seem pretty low, may be some higher rear tyres ?

245/45/17 = 25.68 inches

GJUK · Post by **GJUK** » Mon Jul 13, 15 11:34 pm

top gear, was about 17 mph in my Dart with the old setup

Johnny Dart · Post by **Johnny Dart** » Tue Jul 14, 15 7:14 am

GJUK wrote:top gear, was about 17 mph in my Dart with the old setup

notveryeconomicamundo

MilesnMiles · Post by **MilesnMiles** » Tue Jul 14, 15 8:53 am

Johnny those are small diameter tyres. 3.73 should fly, though

John · Post by **John** » Tue Jul 14, 15 9:15 am

235 75 15 with 323 gears 50mph

But I prefer this calculater as it`s much more fun

http://vexer.com/automotive-tools/speed-rpm-calculator

Derek · Post by **Derek** » Tue Jul 14, 15 10:28 am

I'm the same as Morgan, 55ish 3.23 275/60x15.

GJUK · Post by **GJUK** » Tue Jul 14, 15 1:03 pm

Johnny Dart wrote:
GJUK wrote:top gear, was about 17 mph in my Dart with the old setup
notveryeconomicamundo

Tell me about it!