Welcome to the Australian Ford Forums forum.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and inserts advertising. By joining our free community you will have access to post topics, communicate privately with other members, respond to polls, upload content and access many other special features without post based advertising banners. Registration is simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact us.

Please Note: All new registrations go through a manual approval queue to keep spammers out. This is checked twice each day so there will be a delay before your registration is activated.

Go Back   Australian Ford Forums > General Topics > The Pub

The Pub For General Automotive Related Talk

Reply
 
Thread Tools Display Modes
Old 20-06-2006, 06:39 PM   #1
Twinpiston
Finally rollin on 20's
 
Twinpiston's Avatar
 
Join Date: Sep 2005
Location: Brisbane
Posts: 1,953
Default Working out RPM at 100km/h

How do you work out the revs at 100km/h.

i've got the final drive ratio and the 6th gear ratio.

Cheers

Twinpiston is offline   Reply With Quote Multi-Quote with this Post
Old 20-06-2006, 06:43 PM   #2
AWD Chaser
Formally Kia Chaser
 
AWD Chaser's Avatar
 
Join Date: May 2005
Location: Newcastle
Posts: 2,493
Tech Writer: Recognition for the technical writers of AFF - Issue reason: Writing tech articles 
Default

If you've got the final drive ratio, and the 6th gear, you should hopefully have the rest of the car... look at the tacho - lol.

Seriosuly, there was a thread not too long ago that had an excel sheet, where you could put in tyre specs, gear ratios, and diff ratios, and work it out.
__________________
Kia Grand Carnival (2006)
Silver, Grill Mesh, Tints, Sidesteps (with lights), Towbar, 7" Touch Screen DVD Tuner with intergrated GPS & Bluetooth, Roof Mounted Flip Down 15.1" LCD Screen, Reverse Camera - 184Kw

HSV Clubsport R8 VY (2003)
Black, 6sp Manual, Coulson Seats, Red on black interior, Pacemaker extractors, Twin 2.5" exhaust, Custom Red 20" VE GTS Rims, Custom Red Stitching
AWD Chaser is offline   Reply With Quote Multi-Quote with this Post
Old 20-06-2006, 06:45 PM   #3
pks54
Ford Power To The People
 
pks54's Avatar
 
Join Date: Jan 2006
Posts: 242
Default

look at tacho is the obvious. but if you didnt have one you will need to know the tyre diametre size and final drive ratio as well.
pks54 is offline   Reply With Quote Multi-Quote with this Post
Old 20-06-2006, 06:51 PM   #4
rag top
FF.Com.Au Hardcore
 
rag top's Avatar
 
Join Date: Dec 2004
Location: ACT
Posts: 4,028
Default

try some of these calculators:
http://members.optusnet.com.au/~zerosin/gearcalc.html
__________________
Current Rides:
2000 AU 5L XLS ute; 1970 Mustang project
rag top is offline   Reply With Quote Multi-Quote with this Post
Reply


Forum Jump


All times are GMT +11. The time now is 06:09 AM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Other than what is legally copyrighted by the respective owners, this site is copyright www.fordforums.com.au
Positive SSL