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Old 04-27-2010, 06:22 PM   #59
Granatelli
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Drives: 2SS Victory Red
Join Date: Jul 2009
Location: Oxnard
Posts: 1,093
Quote:
Originally Posted by Cole@Fastlane View Post
I love how you spell your state and city.

If you are towing you just tighten up the aspect ratio of the turbine side to light the turbo quicker. The faster you want to spool the turbo the tighter you get the a/r.In a racing application you open up the a/r for higher rpm power but it wont light up as quick.

If superchargers were better for towing I think all the diesel manufacturers would be using them but they stopped using them and went to turbos in the 1970s and have never looked back.

There is absolutely no application where a supercharger is going to out perform a turbo.

It comes down to what you like. I personally would rather just keep an eye on the egt gauge than have to worry about belt tensioners, 8 or 10 rib set ups with all the pulleys, and worrying about belt slippage.
Let me start by saying, I am in this to speak freely and I don’t; want to come off as arguementive...with that said –

If you are towing, yes the what you ay is true, you can change the turbo configuration to be “more favorable” for towing however turbo or turbo(s) will make a sh-t pot of heat if you are towing a heavy load at sustained mid to high engine RPMs and that ain’t good. Plan on building a cast iron manifold from the head to the turbo. – I know the turbo is bitchen but it is what it will cost in reliability to the surrounding area that worries me. Like that guy in the other post that built a twin turbo kit and mounted the turbos basically right up against the valve covers.

Respectfully – you are wrong about the diesel manufacturers and why they use turbos. First of all even today many of the biggest and baddest diesel motor that come from Detroit Diesel and Volvo use compound forced induction – turbos over a roots. But more importantly the turbo on a diesel packages better and lives forever. Roots blowers won’t go 1 million plus miles like a turbo will and centrifugals and diesels are an oxy-moron.

Again while I am a huge fan of turbos and we do sell a complete line of turbo kits for the street and real world, it will be hard to beat a huge centrifugal on a gas motor and last time I checked Top fuel still ran blowers – regardless of how much power it takes to drive them the pay-back far and a way exceeds it in that application.

Lastly Pro Mod – Show me 1 turbo car that has been consistent, repeatable, reliable and so on. The fastest guys in Pro Mod with turbos are my friends and / or consult with my friends. I want nothing more than to see a turbo do well in Pro Mod but the blowers still rule – fa-getta-bout Nitrous

Hard to believe the turbo guy is now talking about blowers but hey the fact are the facts – Turbo makes more power lb for lb but that does not always mean they make the most power
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