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Discussing added 2lb lower in the 4V / SVT Forum. with the addition of 2lb lower, ported t/b and plenum car made 488hp 479tq. ...

       

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Old October 4th, 2008, 12:05 PM   #1
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added 2lb lower


with the addition of 2lb lower, ported t/b and plenum car made 488hp 479tq.
Previous numbers with a steggy ported eaton, 2.80 pulley.bassani cat-back were 460hp, i am happy with 488hp, but thinking about adding either upr o/r or catted x-pipes, wondering if it should be ok without having to retune the car? i think i should see maybe 5-10 rwhp with these and thus no need to retune, does anybody second this?
 

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Old October 4th, 2008, 05:29 PM   #2
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What stage port? and i agree on 5rwhp, 10 is just too much.
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Old October 4th, 2008, 06:14 PM   #3
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anytime you change the mid pipe or headers your suppose to get it retuned if you have a custom tune
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Old October 4th, 2008, 06:48 PM   #4
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You won't need a re-tune with just a mid pipe, but you will see very good gains because you are boosted and the more flow you can get the better, so where as a N/A car will get 5, I would not be surprised to see you get 10 with the right one.
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Old October 4th, 2008, 07:14 PM   #5
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doc thanks, i'll prob going with upr o/r x-pipe
 
Old October 4th, 2008, 07:28 PM   #6
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what stage port you have on it snakeminated???
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Old October 4th, 2008, 08:36 PM   #7
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Nice

I'm thinking seriously about doing a 2# lower and a smaller upper (2.93 currently) to get a little more out of the ole girl to tide me over until I can get a 2.6 KB.
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Old October 4th, 2008, 08:43 PM   #8
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Im going to add a 6lb power. . . .
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Old October 4th, 2008, 10:01 PM   #9
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stage 4 steggy port
 
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