 Easy 901 question, I promise... |
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| BMXerror |
 Dec 19 2009, 12:46 PM
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#1
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Senior Member  Group: Members Posts: 1,705 Joined: 8-April 06 From: Hesperia Ca Member No.: 5,842  |
Are there lower final drive ratios available for a 901 trans?... Yes, I said lower. (IMG:style_emoticons/default/biggrin.gif)
Mark D. |
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| 904svo |
Dec 19 2009, 06:10 PM
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#2
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904SVO Group: Members Posts: 1,124 Joined: 17-November 05 From: Woodstock,Georgia Member No.: 5,146 |
There was 3 R/P in the 901 type 7:31, 8:31, and 7:27.
I got this info here http://www.roadglue.com/wiki/index.php?tit...01_transmission |
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| ArtechnikA |
Dec 19 2009, 08:17 PM
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#3
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rich herzog Group: Members Posts: 7,390 Joined: 4-April 03 From: Salted Roads, PA Member No.: 513 Region Association: None |
QUOTE(904svo @ Dec 19 2009, 07:10 PM)  There was 3 R/P in the 901 type 7:31, 8:31, and 7:27. I got this info here http://www.roadglue.com/wiki/index.php?tit...01_transmission I thought I had heard of the 8:31 but the problem for this discussion is that it's even taller than the 7:31, not shorter per the original question. And - although there's a passing reference in that article - it too shows no application, so we don't know where it was used and there is no part number. ETKA shows 901.302.902.00 as a 6:29 r&p so there's another flavor heard from... It shows a 912 application but at 4.833:1 is a bit shorter even than the ubiquitous 7:31 So the 8:31, like the 6:32 may be a Motorsports item. Another place to check for early (vintage...) race parts would be Steve Weiner's shop in Portland. (Rennwerk? I should know this but it is eluding me tonight...)** ______________ **finally came to me - Rennsport Systems... a 912-issue 6:29 might show up someplace like PartsHeaven. My recollection is that all the 6-tooth pinions were a bit on the fragile side but I don't know the intended application here... |
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Posts in this topic
BMXerror Easy 901 question Dec 19 2009, 12:46 PM
ME733 :popcorn: ... only one I ever heard about... Dec 19 2009, 12:56 PM
BMXerror
:popcorn: ... only one I ever heard abou... Dec 19 2009, 01:08 PM ArtechnikA
...I'm in the planning stages of a high revi... Dec 19 2009, 01:42 PM r_towle Check with Carquip in Colorado.
He is frequently o... Dec 19 2009, 04:08 PM ArtechnikA
Check with Carquip in Colorado.
Call Carquip afte... Dec 19 2009, 04:14 PM r_towle apparently there is an Echo in here.
Rich Dec 19 2009, 04:38 PM Krieger914 How about smaller wheels? Dec 19 2009, 08:57 PM BMXerror Wow. More input than I usually get on the tech que... Dec 19 2009, 08:58 PM davep 8:31 is a 915 R&P
The sporto diff is smaller t... Dec 20 2009, 06:32 AM Racer Chris The only short R&P I've ever heard of bein... Dec 20 2009, 06:59 AM |
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