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how much Hp?

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Old Sep 11, 2008 | 03:41 PM
  #1  
Sxynerd's Avatar
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Default how much Hp?

I HATE that i've posted this question in 5 SVT forums but not one person has been able to give me any sort of answer seriously. I hope one of you guys can help.

Year depending, How much HP will a 4v make with a Vortech and 10lbs of boost.

Only mods that need to be mentioned is full exhaust shorties or long tubes (Difference is Nominal) and a forged bottom end.


I know how much a 2v will make. It seems everyone know how much that is but no one knows what a 4v will make.
Old Sep 11, 2008 | 04:05 PM
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id say 450-475

what year motor, im assuming a 99 cobra motor ? and if its forged why run ten lbs?

Last edited by antiv6; Sep 11, 2008 at 04:07 PM.
Old Sep 11, 2008 | 04:14 PM
  #3  
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Yes, a 99+. I just used 10lb of boost cause that's what I figured people would tend to run the most and be able to associate a number with. I should be making 15lbs of boost. But I wanted to be able to have an idea on an estimate for hp/boost ratio. Like my current 2v make 17rwhp/lb of boost making a total of 436rwhp.


If I wouldn't make much more Hp with the 4v verse the 2v it would seem that adding the 4v would merely be for show. But it actually does increase so the idea seems valid that a 4v will build more hp.

Last edited by Sxynerd; Sep 11, 2008 at 04:18 PM.
Old Sep 11, 2008 | 05:28 PM
  #4  
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I gotta say it....4v FTW!
Old Sep 11, 2008 | 06:08 PM
  #5  
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I agree. lol
Old Sep 11, 2008 | 10:58 PM
  #6  
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The 4V flows so much more air so in theory it should make mor epower. Plus it revs higher so I would guess it would make more.
Old Sep 11, 2008 | 11:03 PM
  #7  
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+4 valves sound soooo good. the end.

+ yeah don't limit yourself to 10lbs, the higher the boost the more hp you will make (obviously) but The increase with 10-15 lbs of boost on a 4 valve will be more than the increase of a 10-15lbs of boost on a 2 valve.

comprende?
Old Sep 11, 2008 | 11:04 PM
  #8  
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Originally Posted by SVTeeshirt
+4 valves sound soooo good. the end.
+100
Good Call!!!
Old Sep 12, 2008 | 01:28 PM
  #9  
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4V for sure!!! The hp numbers would depend on compression between the years or if your going with aftermarket forged. 8.5to 1 cr at 15 lbs will prob be 525rwhp range and less tq.




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