4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

high or low??

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Old 07-06-2006, 01:29 PM
  #1  
BlkO4Mach1
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Default high or low??

with forged internals on a a pretty stock motor is it better to have high or low compression for nitrous?
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Old 07-06-2006, 01:31 PM
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droptoppony
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Default RE: high or low??

nitrous loves high compression. How much are you adding?
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Old 07-06-2006, 01:31 PM
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Dan04COBRA
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Default RE: high or low??

Low is always the safest. You can squeeze more HP with high compression, but it's definitely harder on the engine.
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Old 07-06-2006, 02:34 PM
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BlkO4Mach1
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Default RE: high or low??

well my compression should be going from 10.5:1 to 12.5:1 but i dont know how much spray my mach 1 can hold i mean its gonna have forged internals machined heads, pretty much an almost complete rebuilt. how much could i spray??
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Old 07-06-2006, 02:38 PM
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code3GT
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Default RE: high or low??


ORIGINAL: BlkO4Mach1

well my compression should be going from 10.5:1 to 12.5:1 but i dont know how much spray my mach 1 can hold i mean its gonna have forged internals machined heads, pretty much an almost complete rebuilt. how much could i spray??
Good luck running pump gas.
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Old 07-06-2006, 03:18 PM
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droptoppony
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Default RE: high or low??


ORIGINAL: code3GT


ORIGINAL: BlkO4Mach1

well my compression should be going from 10.5:1 to 12.5:1 but i dont know how much spray my mach 1 can hold i mean its gonna have forged internals machined heads, pretty much an almost complete rebuilt. how much could i spray??
Good luck running pump gas.
Yeah really...12.5 comp is way high for street/pump gas. Is this going to be a race only car?
As far as the N20 shot with a shortblock built for it no reason you can't do a 200 shot.
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Old 07-06-2006, 03:19 PM
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P Zero
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Default RE: high or low??

Youll definitly need race gas for 12.5:1. Im runnin 11:1 and its amazing how well my car responds to race gas, it feels like a completly different car.
-P.
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Old 07-06-2006, 07:27 PM
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bsteen81
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Default RE: high or low??

high
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