Tripower455
Posts: 402
Joined: 1/14/2005
From: Naples,
FL, USA
Status: offline
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quote:
ORIGINAL: rideicon
You guys must all be old muscle car farts, the roots and the twin screw are almost the same thing, the only difference is the twin screw is way more efficient. the cintrifical supercharger is the most efficient super charger there is, while it may not make boost as low as the roots or twin screw, it will make much more in the top end and the power curve will be much more fun, not to mention the gas mileage is WAY better.
then you step up to turbo chargers, yeah, they don't boost hard in the bottom end, but your in a hemi pick up truck, you have to be easy on the gas in a launch anyways to keep traction, that tiny bit of lagg could actually help you get better ET's , now lets get into the technical stuff, you want high hp, you going to do internals in your truck? roots and twin screw style chargers suck up to 33% of your engine hp from the crank, that means if your crank shows 1000hp with a roots charger as the only means of boost the engine internals are actually seeing over 1300hp worth of pressure, that means more internal stress and way worse engine efficiency.
You want just efficiency, better mpg and more power get a single or dual turbo set up or centrifugal supercharger. You want to most psychotic truck you can build and be streetable with some efficiency left? do a compound supercharger and turbo, i have this set up on my 1.8liter integra, its got a twin screw charger and a gt35 turbo, it see's over 600hp with minimal lagg,
if i was to build that hemi i'd send the block and head out to get machined, sleved, new pistons rods crank whole deal, do the trans up too. then you get yourself a roots charger, a big one! the roots because it build pressure faster and will let pressure through it better than any other kind of super charger, and you get yourself 2 gt40 turbos, they are capable of about 700hp each. now normally that hemi would have trouble getting those 2 big turbos spinning, it would usually only see 1 turbo that big, but with the roots pushing though the motor and in turn through the exhaust you can spool those turbos real fast!!! really really fast!!! and 2x gt40 plus a roots will get you around 1500hp with some major good tunning.
you'd be looking at a **** load of money and if i had a hemi i'd sell it and buy a cummins and sup it up because the efficiency of a diesel makes gas look like a joke and you can get major power without engine internals and have crazy reliability, and like 22mpg. but thats just me i guess....
Spoken like a true ricer........
I am making over 550 hp/600 ft lbs at under 6000 rpm with no power adders whatsoever...... on pump gas and no computer. True, I only get 17mpg at 80mph, but I can pay for a lot of gas by not having to pay for a turbo or supercharger....
Yes, I am a "musclecar fart"..... There is no replacement for displacement.... proven on a weekly basis at the track......
I mean, if you want power, why start with half an engine?
< Message edited by Tripower455 -- 4/6/2007 12:54:10 AM >
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All Forums >> Radios, Batteries, Clubhouse and more >> Full Scale planes, cars, helis, boats >> Cars & Trucks - Full Scale >> Supercharger OR Twin Turbo 
Supercharger OR Twin Turbo - 
RE: Supercharger OR Twin Turbo - 
