Supras are HEAVIER than Vipers. Big brakes and fixed calipers on all 4 corners, cast iron block, and amenities such as power seats etc. put the weight of stock Supra turbos at around 3500 pounds.
As far as making HP on a stock bottom end they are pretty close, as far as I remember a Hennesey Viper (forged piston car) made 1087 RWHP on a 100% stock bottom end (TT car), Supras have made ~1100 RWHP on stock bottom ends as well.
For sure a Viper can make more HP on pump gas due to the fact that it has a 488+ cubic inch engine to the Supras 183+ cubic inch which means a Supra has to run more boost to make the same power and thus ~700 RWHP is the most you can get with the proper turbo setup and fuel system. I personally think this is a stupid argument unless you can't afford race fuel and if that's the case perhaps you shouldn't own a Viper or Supra.
I saw a post from Adam describing a Supra blowing up running 11:1 air fuel ratio, I 100% believe you. I know of a built motor turbo Viper on this board that had the same problem on race gas. Why? Because no matter how rich you run if you run too hot a plug and or run too much timing it doesn't matter how rich the car runs you risk the motor going kaput. Shit happens and motors blow, doesn't make the car any less capable. Tuned and setup properly Vipers, Supras and many other cars can make a lot of power reliably, period.
I for one am looking forward to seeing the only 6speed street 8 second cars in the world line up in TX in March, and I'm definitely glad these are all Supras and Vipers
:thumb: It will be fun to see how the cars run at the same track under the same conditions!
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Originally Posted by Viper4Christ
So did Gary J's car
And everyone makes a big deal about "stock weight" I doubt a Supra is as heavy or heaver then a Viper
It's very impressive what you can do with those, with less money then a Viper but in the end for looks and longevity I'd stay with the snake
Signed,
My less expensive import is faster then high end domestics
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