Ausmini
It is currently Thu Jul 03, 2025 10:51 pm

Board index » Mini Chat » Mini & A/A+ Series Mods

All times are UTC + 10 hours




Post new topic Reply to topic  Page 1 of 1
  [ 14 posts ] 
  Print view Previous topic | Next topic 
Author Message
hothead115
 Post subject: cooper s gear ratios
PostPosted: Tue Mar 21, 2006 7:23 pm 
Offline
848cc
848cc

Joined: Wed Oct 26, 2005 7:39 pm
Posts: 43
is there anyway to change the gear ratio of my clubman to lower the revs and get more out of it as it sits on 100ks at 4000......if so what are the ratios?
Top
 Profile  
 
drmini in aust
 Post subject:
PostPosted: Tue Mar 21, 2006 8:26 pm 
Offline
religious status
religious status
User avatar

Joined: Fri Mar 19, 2004 6:19 pm
Posts: 39752
Location: near Baulkham Hills, NSW
If your Clubbie is doing 4000 at 100KMH it's got the same diff (3.444) as a 1275 Cooper S already. As many Clubbies do.
4th gear in yours is exactly the same gearing as an S, but your 1-2-3 are slightly (5.5%) shorter. :wink:

_________________
DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:
Top
 Profile  
 
Harley
 Post subject:
PostPosted: Tue Mar 21, 2006 9:49 pm 
Offline
1360cc
1360cc
User avatar

Joined: Mon Aug 23, 2004 10:07 pm
Posts: 10653
Location: SE Melbourne
I thought the Ss had 3.7s in them and 3.44 was the normal diff for a non S. :?
Top
 Profile  
 
drmini in aust
 Post subject:
PostPosted: Tue Mar 21, 2006 10:11 pm 
Offline
religious status
religious status
User avatar

Joined: Fri Mar 19, 2004 6:19 pm
Posts: 39752
Location: near Baulkham Hills, NSW
Nope.
850, 997-998 Cooper , & Mini Deluxe got the 3.765 diff. Cooper S got 3.444. :wink:

Clubby 1098 with remote box was 3.647, the rodchange boxes mostly were 3.444.

_________________
DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:
Top
 Profile  
 
simon k
 Post subject: Re: cooper s gear ratios
PostPosted: Tue Mar 21, 2006 10:35 pm 
Offline
Yay For Hay!
User avatar

Joined: Wed Sep 08, 2004 9:27 pm
Posts: 15912
Location: Wodonga - Vic/NSW border
hothead115 wrote:
is there anyway to change the gear ratio of my clubman to lower the revs and get more out of it as it sits on 100ks at 4000......if so what are the ratios?


hothead, you're looking for a taller diff (final drive) ratio, something like 3.1:1 out of a rover mini, 2.9:1 aftermarket, or bigger wheels - but it'll make your car accelerate slower

I believe brickworx readily supply taller diffs

_________________
did I tell you that I won a trophy?
Top
 Profile  
 
willy
 Post subject:
PostPosted: Tue Mar 21, 2006 10:36 pm 
Offline
1360cc
1360cc

Joined: Mon May 03, 2004 6:46 pm
Posts: 13688
Location: ADL
Yeah i'm pretty sure we have a couple ready to go.
Top
 Profile  
 
Mini68
 Post subject:
PostPosted: Wed Mar 22, 2006 7:08 am 
Offline
848cc
848cc
User avatar

Joined: Tue Nov 16, 2004 3:37 pm
Posts: 218
Location: Phillip Island VIC
I think at 4000 RPM doing 100km/h you would have a 3.65 diff (assuming you have 10inch wheels). With a 3.44 diff you would be doing approx 106km/h. This is according to the tech section on the Hot Bricks website anyway.
Top
 Profile  
 
Harley
 Post subject:
PostPosted: Wed Mar 22, 2006 7:45 am 
Offline
1360cc
1360cc
User avatar

Joined: Mon Aug 23, 2004 10:07 pm
Posts: 10653
Location: SE Melbourne
What if his speedo is out by 6km/h? :D
Top
 Profile  
 
Mini Mad
 Post subject:
PostPosted: Wed Mar 22, 2006 8:40 am 
Offline
ET 13.457 seconds , OH YEAH !!!!
User avatar

Joined: Sun Sep 19, 2004 8:35 am
Posts: 7826
Location: Somewhere Around Sydney
The speedo bounces around 5km/h anyway :lol:

_________________
Image
Starlet Conversion:
http://www.ausmini.com/forums/viewtopic.php?t=15484
Top
 Profile  
 
hothead115
 Post subject:
PostPosted: Wed Mar 22, 2006 6:59 pm 
Offline
848cc
848cc

Joined: Wed Oct 26, 2005 7:39 pm
Posts: 43
i can get 70mph out of 3rd if that helps and its got 12 by 5s on her
Top
 Profile  
 
Mini68
 Post subject:
PostPosted: Thu Mar 23, 2006 6:45 am 
Offline
848cc
848cc
User avatar

Joined: Tue Nov 16, 2004 3:37 pm
Posts: 218
Location: Phillip Island VIC
12" Wheels RPM/MPH in 4th gear

2.95 : 1 1000/20.2 2000/40.41 3000/60.62 4000/80.85 5000/101

3.10 : 1 1000/19.28 2000/38.58 3000/57.87 4000/77.19 5000/96.44

3.21 : 1 1000/18.56 2000/37.14 3000/55.7 4000/74.27 5000/92.84

3.44 : 1 1000/17.32 2000/34.65 3000/51.99 4000/69.3 5000/86.62

3.65 : 1 1000/16.33 2000/32.6 3000/48.90 4000/65.5 5000/81.5
Top
 Profile  
 
1360 LS
 Post subject:
PostPosted: Thu Mar 30, 2006 1:04 pm 
Offline
1275cc
1275cc

Joined: Thu Mar 30, 2006 8:22 am
Posts: 2292
Location: Somewhere...... over the rainbow
speaking of ratios what would be the ratio for a Clubman LS I more or less have a bored 1275 Cooper S engine in it but as for the gearing I don't know what was the normal or whats in it now all I know is I have Cooppper S parts in the engine
Top
 Profile  
 
Mini Mad
 Post subject:
PostPosted: Thu Mar 30, 2006 1:53 pm 
Offline
ET 13.457 seconds , OH YEAH !!!!
User avatar

Joined: Sun Sep 19, 2004 8:35 am
Posts: 7826
Location: Somewhere Around Sydney
3.44 i think.

_________________
Image
Starlet Conversion:
http://www.ausmini.com/forums/viewtopic.php?t=15484
Top
 Profile  
 
1360 LS
 Post subject:
PostPosted: Thu Mar 30, 2006 2:40 pm 
Offline
1275cc
1275cc

Joined: Thu Mar 30, 2006 8:22 am
Posts: 2292
Location: Somewhere...... over the rainbow
cheers mate ..... nmow to do the mph to km p/h conversion
Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  Page 1 of 1
  [ 14 posts ] 

Board index » Mini Chat » Mini & A/A+ Series Mods

All times are UTC + 10 hours


Who is online

Users browsing this forum: No registered users and 13 guests

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  

© 2016 Ausmini. All garage work involves equal measures of enthusiasm, ingenuity and a fair degree of irresponsibility.