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      09-26-2017, 09:25 AM   #4
pbonsalb
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Drives: 18 F90 M5, 99 E36 M3 Turbo
Join Date: Feb 2011
Location: New England

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The stock rods can't take much more than the 400 lbs rwtq you might see from a well modded stage 2 centrigugal. The stock compression won't allow much more cylinder pressure on pump gas than you see with a stage 2 centrifugal. Twin turbos should make more boost and thus more cylinder pressure sooner, and the S65 won't tolerate it sooner. Even if you run E85 to push the detonation away, you are still limited by the stock rods.

If the kit can be made cheaper or simpler or easier to install than a centrifugal but make around the same power to keep a stock motor together on pump gas, there should be a market.

I suspect the twin turbo will be a built motor only system. Even if you have E85 available and want to change just the rods, you have to take the motor apart to change the rods. At that level of labor, I'd change the pistons as well to ones more durable under boost. Then you have at least a built shortblock. Not Cheap, plus you have the price of the kit.

I like twin turbo V8s. Audi has one, Mercedes, Porsche, BMW. But they may not be so easy to make in the aftermarket.
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