Originally Posted by Schleprock
Because AWD dyno's are extremely expensive and very rare for a shop to have. An overwhelming majority of clientele are going to be RWD performance cars so the added cost to own an AWD is not cost effective for the business.
I understand the added cost, but I figured you guys in the US would have heaps of AWD dynos around. Here in Sydney metro area I have 5 or 6 to choose from all within an hours drive of my place. I'm pretty sure the AWD dynos cost a lot more here than in the States.
I love what Ripp have done, and with no disrespect to them, its kinda false advertising to only quote RWD figures on an AWD car.
Someone else mentions 15%-17% loss in RWD mode, in AWd mode that's more like 25%-30%. So a 25% AWD driveline loss equates to 460 odd HP if you use the numbers above.