I apologize if this was addressed before but what do most stock 997TTs dyno at the wheels? I would also appreciate which dyno it was measured.

Thank you

 

- if you look at awe-tuning.com they have some dyno charts on their mustang dyno

- basically in stock mode and on good gas, the car does 440whp and 400wtq on a Mustang 4wdr dyno

- in sport boost mode, whp remains the same at 440whp, but wtq is upped to 432wtq

 

Awesome - thank you so much for the reply. Clearly HP rating from factory is underrated.

 

I thought there is approximately a 15% loss between crank and wheel? If Porsche supposedly is very conservative with their hp ratings, wouldn't you need 517hp at the crank to make 440 at the wheels? I'm a novice in underrstanding this area but I've always been curious to know if Porsche's 480hp claim is really conservative.

Thanks -Brad

 

They are really conservative. Spoke to a few friends of mine that have or race with the Porsche factory team. They have all said the same thing. The underated their numbers because of insurance, gas guzzler and etc. to bring the cars in the country.

 

On Vivid's dyno here is AZ it made 398awhp.

 

997gt3north is correct. We have a Mustang AWD chassis dyno. We see 440 hp and 401 lb/ft at the wheels on a stock 997TT with manual trans in STOCK boost mode. In sport boost mode the hp remains the same, but the torque jumps to 432 at the wheels.

Hope this helps.