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TT sizing for 427

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Old 09-25-2022, 09:44 AM
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Snyderz06
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Default TT sizing for 427

Looking for good a good TT size that won't have that much lag, and won't run out of breath up top for a 427.

Last edited by Snyderz06; 09-25-2022 at 02:50 PM.
Old 09-25-2022, 09:46 PM
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Detoxx03
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What power are you shooting for?
Old 09-26-2022, 11:36 AM
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skydaman
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I would at least go with 7675's, they spooled up quick on a 364 and can easily make north of 1500hp.
Old 10-01-2022, 09:30 AM
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Snyderz06
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Originally Posted by Detoxx03
What power are you shooting for?
1400whp+
Old 10-06-2022, 01:48 AM
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jayyyw
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how much over 1400? I know someone that runs 6870s and makes a little above 1400whp in a vette. spools fast and doesnt run out of breath
Old 10-07-2022, 11:20 AM
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Creamo3
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I would say a 67mm compressor minimum to hit your goals - I'm running 72mm Borgs that still spool nicely and make solid power.
Old 10-07-2022, 01:31 PM
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Snyderz06
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Originally Posted by jayyyw
how much over 1400? I know someone that runs 6870s and makes a little above 1400whp in a vette. spools fast and doesnt run out of breath
1400 is kind of minimum.... 1401... I'm happy lol

Originally Posted by Creamo3
I would say a 67mm compressor minimum to hit your goals - I'm running 72mm Borgs that still spool nicely and make solid power.
I saw your build. Trying to stay within the stealth look. I like my AC. I know the engine bay will limit what size turbos I get. Badass build tho.
Old 10-07-2022, 02:05 PM
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Creamo3
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Originally Posted by Snyderz06
1400 is kind of minimum.... 1401... I'm happy lol



I saw your build. Trying to stay within the stealth look. I like my AC. I know the engine bay will limit what size turbos I get. Badass build tho.
Mid-mount or fender mount is probably the best way to achieve your goals. Space is a little tighter in that area, but should be able to fit a 67+mm turbo in that area. Comp oilless turbos work pretty well when space is tight and make solid power.
Old 10-07-2022, 09:50 PM
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jayyyw
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I think 6870 is the biggest turbo you can fit if you're trying to go mid mount with something like the Huron Speed C5 hotside kit.
Old 10-17-2022, 10:11 AM
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Snyderz06
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Maybe dump the dry sump for space.

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