 Gear Choices for a 901, Looking for advice on what gears to run with a 3.0 |
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| Nick |
 May 10 2006, 07:19 AM
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#1
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Member  Group: Members Posts: 144 Joined: 25-June 04 From: Washington DC Member No.: 2,250  |
I did some searching on this topic and didn't come up with much. I tried to find Brad's gear / speed chart but the links to it all seem broken. Basically I'm looking for some ideas on what gears I can run in the 901 that would be a better match with the 3.0. I would like to run it as a 5 speed so Ideally I'd like a first that is taller than stock and a 2nd that is taller than stock, maybe tall enough to take me to 60 mph at 6500 rpms.
Nick |
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| Dave_Darling |
May 10 2006, 08:33 AM
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#2
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914 Idiot Group: Members Posts: 15,335 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California 
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Realize that in a 901 box, 2nd gear is a part of the mainshaft. You cannot change it except by changing the mainshaft. (The exception is if you get the "904" mainshaft, which has replaceable 2nd gears. Check ebay and bring a fat wallet!)
Since 2nd is fixed (relatively), it's probably best to leave 1st alone too. THen all you have to do is mess with 3/4/5. The Rennlist member websites don't seem to be loading for me right now. But if they do for you, you can check http://members.rennlist.com/chuxter and look for his table of 901 gears. (Remember, too, that you can "flip the gears" to invert the ratio if you need gears that are not listed.) --DD |
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Posts in this topic
Nick Gear Choices for a 901 May 10 2006, 07:19 AM
dekman Nick, I have a 3.0L(cosworth pistons 9.8:1./ E cam... May 10 2006, 07:52 AM dekman Add: At 3800 my speedo says 80mph.(at 6000 it say... May 10 2006, 07:55 AM Dr Evil Yup, much easier and less $$ to do a 4 s... May 10 2006, 08:42 AM J P Stein The GA mainshaft is relatively common....I recentl... May 10 2006, 08:44 AM TimT What is the intended use of the car?
For street y... May 10 2006, 09:48 AM
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