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Old Nov 11, 2008 | 11:25 PM
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817Borla's Avatar
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Default which intake

im about to finish my H/C swap and was wondering
if i should stick with the ls6 intake and ported TB or
get a fast 92/92 combor, or maybe a Vic jr.
what do u guys think??
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Old Nov 12, 2008 | 05:29 AM
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What are your h/c specs? How high do you plan on spinning the engine?
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Old Nov 12, 2008 | 06:17 AM
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Well as far as flow is concerned any head flow with either a LS1, LS6, Unported FAST, or Ported Fast means nothing after 280-290 cfm. I would think you need to decide if this is a street car or a track car and at what RPM does the car live at.
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Old Nov 12, 2008 | 06:25 AM
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When I replaced my LS2 intake with a Vengeance ported fast the car had alot more tq and didn't lose any low rpm power. The throttle response also got much better.
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Old Nov 12, 2008 | 11:18 PM
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Originally Posted by LS1-450
What are your h/c specs? How high do you plan on spinning the engine?
cam specs are 242/244, .610/.612 on 112 LSA and heads are the PRC Stage 1.0 LS6 CNC Ported Heads from TSP, with PRC Double Springs.

Last edited by 817Borla; Nov 13, 2008 at 06:06 AM. Reason: spelling
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Old Nov 12, 2008 | 11:58 PM
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I would go with a fast setup.
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Old Nov 13, 2008 | 12:07 AM
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sell the LS6 and u can have money towards the fast
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Old Nov 13, 2008 | 07:15 AM
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Originally Posted by 817Borla
cam specs are 242/244, .610/.612 on 112 LSA and heads are the PRC Stage 1.0 LS6 CNC Ported Heads from TSP, with PRC Double Springs.

If you spin the engine above 6300-6400 RPM (I imagine you do w/ that cam), then a 90mm Fast or larger is the way to go. Good-luck
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