# You think your s\*\*t is big? **URL:** \ **Category:** PittSpeed Automotive\ **Created:** [November 20, 2008, 8:32pm UTC](https://forums.speedlife.net/t/you-think-your-s-t-is-big/200769 "2008-11-20T20:32:01Z")\ **Posts on this page:** 1\ **Showing post:** 18
**Author:** ![tjZ28](https://avatars.discourse-cdn.com/v4/letter/t/9de0a6/32.png) [@tjZ28](https://forums.speedlife.net/u/tjZ28)\ **Post date:** [November 21, 2008, 11:00am UTC](https://forums.speedlife.net/t/you-think-your-s-t-is-big/200769/18 "2008-11-21T11:00:50Z")
> [@AMD Phenom X4 retail prices surface](https://forums.speedlife.net/t/amd-phenom-x4-retail-prices-surface/38753/12): > > either way… I don’t see it handling that turbo at full tilt… like I said… I might be wrong… but… Smokin’ is making high 500s (wheel) currently at 50ish psi. There is no way he’d make 4-5x that amount just be swapping to that turbo and staying at 50ish psi. A turbo that is more efficient at making will make slightly more power due to less pumping losses, but not 4-5x. That turbo at 50psi is not going to make 2500hp and split his block. When 'charger manufactures say a turbo or supercharger is capable of supporting X HP there are a lot of generalizations and assumptions involved. Basically, they’re looking at the peak CFM the 'charger can supply, an assumed A/F ratio, and the Brake Specific Fuel Consumption of the theoretical number to calculate out what the 'charger can support. All motors have different BSFCs, often hugely different so it’s really a gross generalization. -TJ --- _[View the full topic](https://forums.speedlife.net/t/you-think-your-s-t-is-big/200769)._