why do you guy's like a turbo vs a centrif Supcharger?

Mad Dart and Turbo Dart, I'm glad to see gusy like you out there playing in turbo territory, and I'd definitely be interested in seeing some of your project work.

To both your points, and based on my years playing around with roots style blowers, I'd have to agree that it takes an above average person to accept the challenges of dialing in a turbo charged engine. The tuning balance required to assure fast spool; and maintaining the fuel and air across the entire rpm band - without frying some pistons, takes alot of talent and patience.

Also, as someone whose played with positive displacement superchargers, they're hard on parts, generate a lot of heat from rotors beating the air; and their adiabadic efficiency can't come close to the centrifugals. And, yes, turbos deliver FREE horse power.

For anyone that doubts such, please explain to me the parasitic losses of a centrifugal unit. Where is 'power' being absorbed (through the crank, pistons, valve train or) ? With proper sizing of the downpipe you get excellent scavaging, so how many horsepower are lost on turbo engines - and from where do those losses come from ?

Those are serious questions, and I'd really like to hear others perspective.

I also like that twin turbo avitar. Does that belong to you ?

Keep the faith guys. Remember, there's a reason turbos came in vogue back in the 60's and 70's'; only to reappear in the 80's etc. - only to disappear from showrooms just as quickly. Because most people - and especially mechanics didn't understand them.

Such is the legacy of turbo technology today...

Southernman