URGENT: Speed at specific RPM in 5th

Reply Subscribe

Thread Tools

Search this Thread

09-04-2005 | 03:53 PM

#16

theedge

Addict
Rennlist Member

Joined: Aug 2003

Posts: 14,242

Likes: 3

From: Canada, Eh?

944 N/A with stock size tires, according to my Owners Manual, in 5th gear.
60MPH should be just a tad under 2500
80MPH is about 3100-3200
100MPH is about 3800

Reply Like

09-04-2005 | 04:11 PM

#17

josephsc

Race Car

Joined: Jun 2003

Posts: 4,887

Likes: 2

From: Albany, CA: celebrating 100 years of independence from Berkeley, CA

There's a spreadsheet overon 924.org, which might be of use. Check it out: http://www.924.org/techsection/7transaxle.htm

Reply Like

09-04-2005 | 10:31 PM

#18

Giantviper

Burning Brakes

Joined: Jul 2004

Posts: 1,138

Likes: 14

From: Northern New Jersey

Edge...r u sure ur not reading KPH in stead of MPH? your numbers sound alot more like KMP and not MPH. unless there is something wrong with my car?

Reply Like

09-06-2005 | 09:58 AM

#19

Scott at Team Harco

Just a car guy
Rennlist Member

Joined: Jan 2002

Posts: 9,927

Likes: 836

From: South Lyon, Michigan, Ewe Ess Eh

Quote:

Originally Posted by josephsc

There's a spreadsheet overon 924.org, which might be of use. Check it out: http://www.924.org/techsection/7transaxle.htm

Good stuff. The 5th gear ratio listed in the quoted chart differed from the one I used in my earlier exmple (now corrected). It seems I used the European ratio for 5th instead of the US ratio (37 : 27 vs 35 : 29)

All I needed to do was read the small print...

So Bean - you're numbers are right on!

Reply Like

Reply Subscribe