View Poll Results: Twin Screw or Roots
Twin Screw
50
84.75%
Roots
9
15.25%
Voters: 59. You may not vote on this poll
Twin Screw vs. Roots
12-09-2010, 01:35 PM
#1
1st Gear Member
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Join Date: Nov 2010
Location: MI
Posts: 74
Twin Screw vs. Roots
I know I'm opening up a can with this one. I know the basic difference between the two:
Roots compresses the air in the intake manifold (Eaton)
Twin Screw compresses it in the supercharger (Whipple, KB, Saleen)
It's an opinionated argument, just looking to hear your oppinions..
Roots compresses the air in the intake manifold (Eaton)
Twin Screw compresses it in the supercharger (Whipple, KB, Saleen)
It's an opinionated argument, just looking to hear your oppinions..
Last edited by 302_GT; 12-10-2010 at 08:11 AM.
12-09-2010, 03:40 PM
#5
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Join Date: Nov 2010
Location: MI
Posts: 74
I'm curious to see how many people are familiar with eaton's Gen 6 TVS technology. The previous generation Roots SC's had obvious heat soak issues, but eaton seems to have made some major headway with the Gen 6.
My biggest argument with the twin screw is it's constantly creating boost. Even though it has a bypass so the boost doesn't make it to the engine, the SC still has the added stress of consistantly making boost.
Where the roots has the bypass before the internals, so the SC isn't under anywhere near the same load as a twin screw during cruising speeds. But you still get immediate boost at WOT.
Last edited by 302_GT; 12-09-2010 at 03:43 PM.
12-09-2010, 03:49 PM
#7
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Join Date: Sep 2010
Location: IN
Posts: 2,248
LOL, I see the votes are pretty well speaking for themselves, and this was the answer I was expecting. But I was hoping for some more reasoning to back it up.
I'm curious to see how many people are familiar with eaton's Gen 6 TVS technology. The previous generation Roots SC's had obvious heat soak issues, but eaton seems to have made some major headway with the Gen 6.
My biggest argument with the twin screw is it's constantly creating boost. Even though it has a bypass so the boost doesn't make it to the engine, the SC still has the added stress of consistantly making boost.
Where the roots has the bypass before the internals, so the SC isn't under anywhere near the same load as a twin screw during cruising speeds. But you still get immediate boost at WOT.
I'm curious to see how many people are familiar with eaton's Gen 6 TVS technology. The previous generation Roots SC's had obvious heat soak issues, but eaton seems to have made some major headway with the Gen 6.
My biggest argument with the twin screw is it's constantly creating boost. Even though it has a bypass so the boost doesn't make it to the engine, the SC still has the added stress of consistantly making boost.
Where the roots has the bypass before the internals, so the SC isn't under anywhere near the same load as a twin screw during cruising speeds. But you still get immediate boost at WOT.
12-09-2010, 03:54 PM
#8
1st Gear Member
Thread Starter
Join Date: Nov 2010
Location: MI
Posts: 74
So in theory you should feel the same boost at 1/2 throttle for either kit.
12-09-2010, 03:57 PM
#9
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Join Date: Mar 2006
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Posts: 1,547
My biggest argument with the twin screw is it's constantly creating boost. Even though it has a bypass so the boost doesn't make it to the engine, the SC still has the added stress of consistantly making boost.
Where the roots has the bypass before the internals, so the SC isn't under anywhere near the same load as a twin screw during cruising speeds. But you still get immediate boost at WOT.
12-09-2010, 03:59 PM
#10
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Thread Starter
Join Date: Nov 2010
Location: MI
Posts: 74
So your boost gauge wouldn't read anything (since most gauges measure the boost as it passes through the intake). But your SC is still going through the work of compressing the air.?
Again, this thread was just for arguments sake. I'm curious what the benefits of each are.