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Old 08-04-2012, 12:12 AM   #1
koke'sfocus
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Intercooler pipping 2.5" hot side and 3" cold side?

Ok I'm building my own turbo kit but Im wondering is this feaseble? Or even good? Or should I build it all one size? Thanks in advance :)


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Old 08-04-2012, 01:41 AM   #2
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Many ppl run this sizing including me. You will get mixed responses
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Old 08-04-2012, 08:02 AM   #3
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In most cases 2 inch from the turbo to the IC (what size is the outlet of your turbo), 2.5 from the IC to the TB and 3 inch to the turbo will make you an easy 400HP

Tom
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Old 08-05-2012, 12:12 AM   #4
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Quote:
Originally Posted by Roushturboedzx3 View Post
Many ppl run this sizing including me. You will get mixed responses
ur running 2.5 hot side , 3 inch cold side?
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Stock long block 353whp 280lbtq, 13psi
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Old 08-05-2012, 12:15 AM   #5
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Quote:
Originally Posted by 1turbofocus View Post
In most cases 2 inch from the turbo to the IC (what size is the outlet of your turbo), 2.5 from the IC to the TB and 3 inch to the turbo will make you an easy 400HP

Tom
well I'm gonna run 2.5 from the turbo to the ic and 3" from the ic to the tb, is gonna be a blow thru setup do i really need a mafia for u to tune it tom? i will get a tune from u for sure
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Old 08-05-2012, 08:52 AM   #6
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Quote:
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well I'm gonna run 2.5 from the turbo to the ic and 3" from the ic to the tb, is gonna be a blow thru setup do i really need a mafia for u to tune it tom? i will get a tune from u for sure
I run 2.5" from turbo to IC and 3" from IC to TB with a blow-through setup on my D20.
At 11psi with the GT2871r it is already over 900 MAF counts, so if you plan on flowing more than that the yes I would recommend a MAFia or a 3.5" MAF housing. I picked up a MAFia.
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Old 08-05-2012, 09:26 AM   #7
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If you go with the 2 and 2.5 you will see better throttle responce and ever so slightly better spool ,better tlow throttle driveability, 2.5 and 3 inch if you shooting for over 350-400hp

Yes you will still need a MAFia

Tom
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Old 08-05-2012, 09:57 AM   #8
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Quote:
Originally Posted by koke'sfocus View Post
ur running 2.5 hot side , 3 inch cold side?
yes sir.
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Old 08-05-2012, 05:14 PM   #9
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So I could run the turbo setup with a 2 turbo to ic and 2.5 ic to tb with out the mafia?





Quote:
Originally Posted by 1turbofocus View Post
If you go with the 2 and 2.5 you will see better throttle responce and ever so slightly better spool ,better tlow throttle driveability, 2.5 and 3 inch if you shooting for over 350-400hp

Yes you will still need a MAFia

Tom
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Stock long block 353whp 280lbtq, 13psi
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Old 08-05-2012, 05:26 PM   #10
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You will need a MAFia reguardless , why the worry about a MAFia

Tom
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