Looking for more infos about 95 WRX RA rear differential.
- Which final drive ratio? - which type (LSD plate type or another?) - link to other info sources? Thx |
The Ra's of 95 vintage have 3.9 diffs and ultra short gears.
If the box has a centre DCCD the rear diff will be plated, if the box has a viscous centre LSD then the rear LSD will also be viscous. Andy |
Perfect.
Thanks a lot. You saved my money :-) |
Good grief Andy, you should write a book on all these details. Now I've sorted my RA trans out I think it is a 92/94 unit as the rear isn't plated and it does have a 4.111:1 ratio. Presumably it makes it the shortest trans made by Subaru?
I just hope it makes the car faster..... Would like to give you a public thank you for all your help. The learning curve on Impreza's is bloody steep, makes 911's easy by comparison! Regards. Graham. |
Standard final drive ratio on STi is 4,44:1.
Short gearing on RA is probably done by gearbox gearing. |
The 95 Ra has a 0.972 5th gear. Thats exactly the same ratio as a UK cars 4th gear.
Andy |
hrubago, try to get the Haynes Subaru Impreza book by Chis Rees, it has stacks of detail on all the cars all there, not perfect, but a good guide.
Graham. |
Andy, or anyone else:
If the RA trans has NO manually adjustable center diff, therefore only an LSD in the rear, can I keep the abs in my STi which will soon get the RA trans? Graham. |
Yes :) The ABS is worth retaining for wet meetings in my opinion.
|
Thank god for that, didn't fancy doing the brakes as well as the trans!
Must try harder as in the dry I can't get the ABS to come in while diving into a 90 left (too fast). Sometimes I wonder if its working... Thanks again Andy, regards, Graham. |
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