 Going with the 915 trans, I'm taking the plunge |
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| groot |
 Oct 28 2006, 11:57 AM
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Dis member  Group: Members Posts: 896 Joined: 17-December 03 From: Michigan Member No.: 1,444  |
I've researched it and decided to go for the 915 trans.
Due to job insecurity, I'm not comfortable buying a Hewland at this time. And since I'd need a replacement 901 case (or at least a ring and pinion-see "Pinion failure" thread) which would run me a few hundred bucks, I decided a few hundred more for the added strength of a 915 might be a good plan. I scored an '84 Carrara 5-speed for <$1000. I will flip the ring myself and replace whatever else needs to be replaced over the next few weeks. I have to decide whether I should add a cooler and pump or not.... For now, I will run the stock ratios. Check out this gear chart.... 2, 3 and 4 in the stock 915 box are remarkably close to what I was running in the 901 box. I only used 3, 4 and 5 with the 901. Knowing that Topeka has some very slow corners, I know I needed a lower 3rd (901), which 2nd in the 915 gets me. The purple box is an estimate from Jake about where the race engine will make good power. As for the linkage... I've got a few ideas. I don't want to spend the $$$ for the WEVO setup, although it looks georgeous. If there's interest, I'll post progress pics. Attached image(s) 
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| edgetoo |
Dec 4 2006, 11:45 AM
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Newbie Group: Members Posts: 25 Joined: 26-October 03 From: Rockland, MA Member No.: 1,279 |
I have been using Hewland/Webster transmissions for 34 years. (We shouldn't be
trying to convince you folks to go this route, they really work well!!!) (Your E & F prod compeditors have been using Dog Clutch non syncro boxes for years.) They are slide on, interchangable, Dog engagement, straight cut gears housed in a modified VW type 1 case. (Webster is an American copy of the English box.) The MK 5, MK 8, & MK 9 are made in 4 & 5 speed and will bolt to VW type 4 with VW type 4 flywheel. (Slightly longer axles are needed) Air Cooled FSV, & F-Mazda configurations have the shift on the right side. (While the exposed rear shifter of the ACFSV could be "bumped" into neutral, a small shifter bumper will prevent this.) Water Cooled FSV, FF, F2000, S2000, and Sports racer configurations have the shift lever on the left side. (These may have had the starter flange removed.)("Rino" VW type 1 cases are inexpensive and are stronger.) (Some sideplate appendages may need to be removed to clear some starters) If you wish more details, let me know. Ed Givler |
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Posts in this topic
groot Going with the 915 trans Oct 28 2006, 11:57 AM
J P Stein This is "Production" racin', eh?
It ... Oct 28 2006, 01:10 PM groot I hear ya' JP. I'm still allowed 38mm chok... Oct 28 2006, 01:19 PM J P Stein I think NASCAR has it right. Don't put the rac... Oct 28 2006, 01:23 PM Jeroen QUOTE
Thorshammer Actually I lift very slightly for every shift. It ... Nov 23 2006, 02:35 PM Brad Roberts Ed,
I like the idea of running the Rhino tranny c... Dec 4 2006, 01:15 PM edgetoo yep!
Ran a AC FSV for almost 30 yr before goi... Dec 6 2006, 01:05 PM
groot Just an update on my 915 BS.... I got a refund fro... Dec 6 2006, 01:44 PM |
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