What can you tell me about the 74mm TB?

[Jake Raby]

On my dyno jet a well serviced 3.2S will put down 230HP in stock form.

We wear our dynes out here (we have two engine dynos and a chassis dyno) doing development. You learn a lot over time, but most of what you learn is that most dyno operators are completely lost.

Call your favorite supplier of go fast goodies and ask the first person who answers the phone what the 4 strokes of a 4 stroke engine are. You'll be transferred 2-3 times before anyone can tell you. Guaranteed.

Most of what people do to these engines result in LESS net power.

I have 996TT here now that one of these "tuners" and their products killed. They installed larger intake tubing without ensuring the suspension didn't contact the larger tubing with the car on the ground. Up in the air there's a ton of clearance, but on the ground the suspension punctured the tubing, generating debris which passed through a 3,000 dollar turbo and then sent that debris into the engine. The result is a 40 thousand dollar lesson being learned by the owner.