901 power limitations Options

[-JR-]

I've been planning components for a 3.2 914-6 car. I had been planning on using a G50 transmission but now from a reliable Porsche enthusiast, who also races in SCCA, that a 901 would be a better route. Primarilly that it "should" take the power and it's a significant weight saving over the G50.

I want to run a stock 3.2-6 which I believe turns out around 220HP and about the same for torque.

I've seen offical Porsche litterature which stated that a 901 transmission is good for up to 148FT/P of torque but they have been used up to 235 in race applications with dimished life spans.


This car is being built primarilly to be an auto-X machine, but it will also be used for PCA touring events. So I need a trans that can take heavy punishment over short auto-X stints.

Has anyone on the list had experience with this?

Thanks!

[Series9]

I'm most worried about grenading first gear when I'm trying to launch it off the line with the auto-X stickies on.

And that is how it will likely fail.

At 220hp, you're at the 901 transmission's limit and well past the first gear's limit.

Getting an appropriate tranny in the car is an expensive proposition. I have almost $5k in my Vellios-converted 915 limited slip tranny, but if you want to enjoy the car, it needs to be done.