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which turbo to get? step inside

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Old 07-30-2012, 10:00 AM
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Default which turbo to get? step inside

tell me why its better for my setup.

BW s475 t4 flange or a ON3 76mm .96ar T4 turbo,journal bearing

going on a bone stock long block 5.3 with 799 heads, turbo cam, ls6 intake, valve springs, th400 and 3.23 gear on E85

thanks
Old 07-30-2012, 10:10 AM
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on3 will spool quicker..but the s475 will make more top end..
Old 07-30-2012, 10:19 AM
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and that is what I thought. SO for the track what would be the better choice?
especially with it being a small cubed engine Im almost thinking of going with the on3
Old 07-30-2012, 10:26 AM
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On an LS based engine the BW will flat dust the 76mm P-trim. They really aren't even in the same league.
Old 07-30-2012, 10:37 AM
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How much power you looking for
Old 07-30-2012, 10:49 AM
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With the stock 5.3 and e85 I plan to push over 15lbs on it. So im thinking over 800hp
not to the wheels of course but who knows I can always up the boost.
Old 07-30-2012, 10:55 AM
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i have a 76 p trim magnum right now.. ,,and im going to get a s475 or s480 .. its addicting and you will always want more.. id just get the s475 ,,cause you will want it later if u get the on3 now..
Old 07-30-2012, 11:00 AM
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Originally Posted by chevellepowered
i have a 76 p trim magnum right now.. ,,and im going to get a s475 or s480 .. its addicting and you will always want more.. id just get the s475 ,,cause you will want it later if u get the on3 now..
THats what I was thinking to just use the s475 now and sacrafice some low end power but have a huge gain up top. Im just wondering if that the cam will make up the difference on the low end with a big *** turbo over the on3
Old 07-30-2012, 12:05 PM
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Keep im mind that one is a 300 dollar turbo and the other is about 800 if im correct.
Will it be mostly street driven?
Old 07-30-2012, 12:25 PM
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Nope..... Track car
Old 07-30-2012, 12:30 PM
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You will want the 475 if you plan on 800hp.
Old 07-30-2012, 01:51 PM
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What im doing right now for my 5.3 I got a ebay gt45 then gana save up for a s475 or s480 also on 15psi the gt45 should be enough for 10's in my trans am



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