| ausmini https://www.ausmini.com/forums/ |
|
| final gear???? https://www.ausmini.com/forums/viewtopic.php?f=2&t=20970 |
Page 1 of 1 |
| Author: | buztoy [ Mon Jul 10, 2006 8:34 pm ] |
| Post subject: | final gear???? |
hey guys on an american site it has for sale a final gear, is this an overdrive, so 4 speed plus overdrive or so on, has any one changed their 4 gear ratio to suit higher speeds, cheers |
|
| Author: | drmini in aust [ Mon Jul 10, 2006 8:54 pm ] |
| Post subject: | |
Final drive gear probably. aka here as`diff ratio'. Minis here ex-factory had either 3.765 (850, 997-998 Cooper & Deluxe), 3.647 (Mini-K, 1100 Clubby), or 3.444:1 ratios (Cooper S, Clubby GT and some later Clubbys). UK got taller ones- 3.2, 3.1, 2.95, 2.7. Rocking horse doo-doo here though. 
|
|
| Author: | HistoricRacingS [ Fri Aug 04, 2006 8:36 pm ] |
| Post subject: | |
Just on this subject of Diff ratios. Am I right to assume you can mix and match pinions with crownwheels as long as they are both helical? HRS |
|
| Author: | drmini in aust [ Fri Aug 04, 2006 8:49 pm ] |
| Post subject: | |
HistoricRacingS wrote: Just on this subject of Diff ratios. Am I right to assume you can mix and match pinions with crownwheels as long as they are both helical?
HRS Well- you are 1/2 right. Pinions are common if teeth count the same, but not crown wheels. eg a 3.44 diff has an 18T pinion and 62T crown wheel. a 3.64 has a 17t pinion and a 62T crown wheel. A 3.76 diff has a 17T pinion and a 64T crown wheel. The 17T pinions are the same, but the 62T crownwheels are not. make sense? I always cable tie the pinion to the gear when I strip them apart.
|
|
| Author: | jbeenz [ Fri Aug 04, 2006 9:13 pm ] |
| Post subject: | |
i have a 2.9 half into my 1220, and we just put a 2.9 in my mates 1275, i goes really well, and its not dificult to take off in 1st  the hardest part of fitting is milling out the bearing retainer to suit larger pnion, a drum sander works well
|
|
| Author: | xplosion77 [ Sat Aug 05, 2006 2:06 pm ] |
| Post subject: | |
so wat does these ratio do to make them different from each other and wat would be best to use |
|
| Author: | jbeenz [ Sat Aug 05, 2006 2:26 pm ] |
| Post subject: | |
the lower the number eg. 2.9, the lower your RPM at a given speed will be. Hotbricks.org.au (i think) has a chart showing wheel size/diff ratio/speed/rpm, its a very good resource. what sort of driving you do dictates what diff is best for you, for me its mostly 110kph for 2 hrs at a time, so a 2.9 suits (a 2.7 would be nice, but id want more power) |
|
| Author: | drmini in aust [ Sat Aug 05, 2006 7:07 pm ] |
| Post subject: | |
....and mine rarely gets out of the suburbs, so a worked 1360 with an S box, a 3.64 diff and 10" wheels is real good fun. 
|
|
| Author: | jbeenz [ Sat Aug 05, 2006 7:09 pm ] |
| Post subject: | |
hehehhe, how long do tyres last doc? |
|
| Author: | drmini in aust [ Sat Aug 05, 2006 7:12 pm ] |
| Post subject: | |
Well the A008s I use give me about 3 years- the thing only gets to do about 4000 miles a year now.
Falkens FK07Es lasted forever, but they lacked grip off the line when dry and were friggin hopeless in the wet. 
|
|
| Author: | jbeenz [ Sat Aug 05, 2006 7:18 pm ] |
| Post subject: | |
| why am i not supprised
(my bidgstones have lasted almost a year now oh, oops thats because i blew 2 motors up and there only 2000km old! )
|
|
| Page 1 of 1 | All times are UTC + 10 hours |
| Powered by phpBB® Forum Software © phpBB Group http://www.phpbb.com/ |
|