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Gearbox Straight Cut Ribcase Complete , Sprite & Midget Type For Vintage Racing

Gearbox Straight Cut Ribcase Complete , Sprite & Midget Type For Vintage Racing

Gearbox Straight Cut Ribcase Complete , Sprite & Midget Type For Vintage Racing

Gearbox Straight Cut Ribcase Complete , Sprite & Midget Type For Vintage Racing

Gearbox Straight Cut Ribcase Complete , Sprite & Midget Type For Vintage Racing

Gearbox Straight Cut Ribcase Complete , Sprite & Midget Type For Vintage Racing

Gearbox Straight Cut Ribcase Complete , Sprite & Midget Type For Vintage Racing
Qty:
$2394.95
Part No: C-AJJ3319-C
Internet Price $2394.95
This Item has a $300.00 core charge.
Mini Mania can supply you with a ready to race straight cut close ratio gearbox! Quality guaranteed! Our race gearbox is built to exacting standards with all the tricks learned over many years of development. Our boxes, either stock or race are guaranteed to not to pop out of second gear! The stock ribcase gearbox of any AH Sprite and/or MG Midget can be transformed into a superb racing box with the installation of straight cut gears! Not only does the straight cut design provide more strength and take significantly less power to drive but the ratios of the various gears are ideal for high performance racing! Yes, the nature of straight cut gears is that they are louder than the stock helical, but if you are racing you don't care about noise, only performance. This gearbox when installed will make a 948cc engine feel almost like a 1275, and a 1275 will feel like a 1500! You can always be on the proper power band of any motor! The RPM drop as you upshift is dramacticaly lower and thus momentum is not lost and your screaming motor will be allowed to stay screaming! Ratio <P>Comparison: Stock S/C Close ratio <BR>1st- 3.2 vs 2.573<BR> 2nd 1.916 vs 1.722 <BR>3rd 1.357 vs 1.255 <BR>4th 1.0 vs 1.0
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Related Technical Articles:
Vintage Racing with a “Ribcase” transmission
Created: April 19, 2018
The world of Vintage racers seem to be ever expanding and so does the use of the venerable Ribcase transmission. A set of Close Ratio Straight cut gears can make a big difference in performance and driving pleasure.
Vintage Race Parts
Created: January 09, 2018
Vintage Race Parts specially created and designed to keep you in the winner's circle. Our racing parts are made for formula Juniors and limited production sports racing cars. We have a huge selection of Vintage Car Racing Parts with our Sprite/Midget gearbox being s one of the most common ones. Call and talk to the Racing Specialist at Mini Mania.
Common Ribcase transmission problems
Created: April 24, 2014
The "Ribcase" acronym for the gearbox as found as stock in most later '60's and '70's. The original design parameters were conceived around a small displacement low torque and horsepower engine and the "Smooth-case" transmission. The demands on this gearbox were well within design limits. Over the years the engines got bigger and bigger as did the weight of the cars they were installed in.
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