Your comparing totally different transmissions, 1300hp Outlaw motors are mated to special transmissions that use way less horsepower, they are designed for drag racing, and that only.
Take your stock 225hp, then you take the 15% drivetrain loss in a 5-speed:
225x.15=33.75
225-33.75=191.25
So 191.25 hp
I'd say that is DAMN close to what a stock 89 GT puts out.
And we all know even though the 93's were rated lower, they still put out around the same amount of hp.
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