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The ChampCar Endurance Series Tech Team
ChampCar ChampCar Tech Desk Knowledgebase Drivetrain & Axle
2020-01-10 - Miata rear differential gear ratios
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2020-01-10 - Miata rear differential gear ratios

Q.
I want to confirm I am reading this rule correctly.

4.7.8. Rear-end gear-ratios are open to all OEM differentials available for that year, make, and model or chassis generation (excluding specialty high-performance models not listed on the VPI table).

Does this allow us to run a 4.3 ratio in a 1997 Torsen differential since the NA generation had both a 4.1 and 4.3 ratio?
We are running a 97 driveshaft, stub shafts and half shafts.

A.
I believe the 4.30 ratio was only available in the 1.6 NA and the 1.8 had 4.10 with the Torsen from 95 to 97. 
So you can run it.

Verified 7-2-24 by TECH

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Article Details

Article ID:
44
Category:
Drivetrain & Axle
Date added:
2020-01-10 20:56:55
Views:
1,203
Rating (Votes):
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