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post #1 of 9 Old 08-03-2010, 09:17 PM Thread Starter
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How much Boost

How much boost are you guys running on a 9:1 compression engine ?

I am around 8.8 compression right now

Thanks


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post #2 of 9 Old 08-03-2010, 09:24 PM
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post #3 of 9 Old 08-04-2010, 05:36 PM
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Compression is only one part of the equation. Fuel used, heads, cam timing etc....

New build in progress: Twin Gen 2 PT6466 352

Old combo:352 single 76mm turbo, 16psi, AOD, 9.41 @ 149mph, E85, 255/50/16 MT DR, 3500lb STREET car driven everywhere.
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post #4 of 9 Old 08-04-2010, 09:36 PM
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20+ psi all day.

Voodoo racing innovation built 4v , powerglide, borg warner s475 at 29psi, custome turbo kit , pro efi ecu, Aeromotive fuel pump, aeromotive fuel rails, id 1000 injectors, e85. Best to date 1.36 60'
Best pass to date 8.92 at 156mph. Best 1/8 mile 5.6at 127 mph.
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post #5 of 9 Old 08-04-2010, 09:39 PM
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i plan to run 10-12lbs on 9:1 comp in stock block.
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post #6 of 9 Old 08-04-2010, 10:41 PM
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Quote:
Originally Posted by eboost View Post
i plan to run 10-12lbs on 9:1 comp in stock block.
What size turbo?
post #7 of 9 Old 08-04-2010, 11:32 PM
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What size turbo?

two t3/t4's (57mm)
But i think i need to upgrade. its for a 408.
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post #8 of 9 Old 08-05-2010, 01:27 AM Thread Starter
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Originally Posted by 2002mustanggt View Post
20+ psi all day.
How Long will your engine last with this much boost ?
This a race only car ?

I am planning 13-15 max and only racing it 2 or 3 times a year
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post #9 of 9 Old 08-05-2010, 02:03 AM
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Originally Posted by lonnie1952 View Post
How Long will your engine last with this much boost ?
This a race only car ?

I am planning 13-15 max and only racing it 2 or 3 times a year
Good tune, oil change , don't beat on it non stop, good fuel should last . Yup it's my DD. Nothing like driving DD with 700rwhp , foot is my boost controller . Mine is built by my buddy with MMR 850 stroker 5.0l internals in windsor block. Once T76 will go even higher boost

Voodoo racing innovation built 4v , powerglide, borg warner s475 at 29psi, custome turbo kit , pro efi ecu, Aeromotive fuel pump, aeromotive fuel rails, id 1000 injectors, e85. Best to date 1.36 60'
Best pass to date 8.92 at 156mph. Best 1/8 mile 5.6at 127 mph.

Last edited by 2002mustanggt; 08-05-2010 at 02:06 AM.
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