MG Performance Forum
MGA close ratio gearbox
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Vermont South, Vic, Australia
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Apr 22, 2024 06:51 AM
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 Joined 18 years ago
43,783 Posts
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Yep, I get it. My buddy has a SC/CR geabox in his 1380-powered Bugeye, that gearbox is horrible in the street Bugeye, hard to get going, too high of 1st gear ratio and too noisey beyond enjoyement. If you have not already you may want to list this in the Motorsports section, as SC/CR gearbox is most desired by racers. Besides, the Jack Knight SC/CR ratio gear set was one the best ones ever made, better quality steel and hardening process beyond what is offered today. Another thing I tell street car folks, while a close ratio gearbox sounds cool for the street, it really isn't, unless you just like shifting a good bit more.
Hap Waldrop
Acme Speed Shop
864-370-3000
Website: www.acmespeedshop.com
hapwaldrop@acmespeedshop.com
Edited 2 time(s). Last edit at 2024-04-22 09:01 AM by Speedracer.
Hap Waldrop
Acme Speed Shop
864-370-3000
Website: www.acmespeedshop.com
hapwaldrop@acmespeedshop.com
Edited 2 time(s). Last edit at 2024-04-22 09:01 AM by Speedracer.
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Apr 22, 2024 01:10 PM
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Joined 15 years ago
8,013 Posts
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I don't know what it's worth but I feel your pain. My old MK2 Deluxe had a CR gearbox with a 4:55 rear end just wasn't fun on the highway so instead of messing with it I sold the car. 
Ron
Edited 1 time(s). Last edit at 2024-04-23 02:03 PM by ron neal.
Ron
Edited 1 time(s). Last edit at 2024-04-23 02:03 PM by ron neal.
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Apr 22, 2024 03:15 PM
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Joined 14 years ago
5,170 Posts
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 About 12 miles from Sears Point, CA, USA
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Apr 22, 2024 05:01 PM
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Joined 17 years ago
12,287 Posts
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Apr 22, 2024 06:00 PM
Top Contributor
Joined 18 years ago
43,783 Posts
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In reply to # 4788095 by Blueosprey90
A few years ago, $2,500 US. Not so sure now. Seems to be no one building new MGA race cars around me. Younger guys don’t even know what an MGA is!
I agree with Hap, and maybe the MG Vintage Racers on Facebook - or your Australian equivalent.
I agree with Hap, and maybe the MG Vintage Racers on Facebook - or your Australian equivalent.
New SC/CR MGA gear set still range, 2200-2500 USD, Brown and Gammons is a little cheaper than Moss UK. A Jack Knight gear sets were always a little more expensive, as they are made from better than today's stuff. So if Michael ask $2500USD or an Australian dollar value of 3876.00, a racer would be getting a good deal.
Hap Waldrop
Acme Speed Shop
864-370-3000
Website: www.acmespeedshop.com
hapwaldrop@acmespeedshop.com
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