Quote:
Originally Posted by fa5tco
Frankly knowing subaru I am more worried about how the tranny would hold up if someone boosts the car to the 250-275whp range, than I am about the engine internals, or turbo kit fitment.
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Transmission is Aisin/Toyota. Of Altezza fame. Meaning a J160 (Toyota designation). Modified of course.
A similar unit (AZ6, Aisin designation) would also be found in the RX-8, S2000, S15 Silvia etc.
It's easily at least as strong as the W58 (400hp|300ft/bs?), although we really wouldn't know where the limits are of this particular box until it's in the hands of capable tuners and they reach the point where they break them.... So speculation is fairly useless. The auto is IS-F based, for sure that will easily support at least 400hp/400ft-lbs torque as they say it's the same (minus 2 gears).
I think the tranny and diff are the least of your worries. Everybody ranting about power this and power that keep forgetting how light this car is. At 2850lbs with 400whp, it's approaching the power-weight ratio of the LFA/458 Italia/Gallardo Superleggera/Z06 C6 vette. At 300whp it's already blown past BPU Supras, IS-Fs, M3s, C63s, RB26 Swapped S13/14s, Standard C6 vettes and approaching GT-R levels. Seriously guys... As an engineer, tuner, racer and car lover I admire your enthusiasm but please, grab some perspective.