Quote:
Originally Posted by funwheeldrive
I was under the impression that these cars are able to handle more power relatively well. Arent there people with aftermarket superchargers who are still on factory transmissions, and drivetrains?
|
There are people who use factory transmission and drivetrains, but I am highly skeptical it would pass QC for an OEM car.
https://kaizenfactor.wordpress.com/2...e-know-so-far/
Quote:
|
For those of you who are looking forward to turbo or supercharge your BRZ / FR-S / GT 86 via the aftermarket, however, we must remind you of a crucial caveat that appears on the second photo of this article: “Medium Torque Capacity RWD 6-Speed Manual transmission (AZ6)”. A cursory glance at all the vehicles that have used the Aisin AZ6 reveals that the torquiest of the lot is the S15 Nissan Silvia Spec-R, producing 202 lb/ft. All other AZ6 users produced somewhere between 124 and 163 lb/ft of torque, with stock BRZ / FR-S / GT 86 rated at 151 lb/ft. Notably, when the North American market demanded a manual transmission option for the Lexus IS 300 and its 2JZ-GE 3-liter inline 6’s 218 lb/ft of torque, the Aisin AZ6 (or J160 in Toyotaspeak) was deemed to be too weak. Instead, a W55 variant of the W58 5-speed manual from the naturally-aspirated Toyota Supra and Lexus SC 300 was used. Thus, it’ll be quite interesting to see what Subaru and Toyota engineers would do for a possible future manual supercharged or turbocharged FT-86 variant. Further modifying the existing AZ6? Or doing so with the higher-capacity AY6 (which can reportedly handle over 345 lb/ft of torque)? Or reach out to Getrag as Toyota did for the 233/V160 when it needed a stout yet sporting 6-speed manual for the Mk4 Supra Twin Turbo?
|
I think the answer to those questions is now, none of the above. They just won't make it.
Also, looking at the "who broke their axle" thread, makes me think the axle isn't designed to take much torque either.