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Intercooler question

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Old Jul 7, 2015 | 06:01 PM
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Default Intercooler question

I'm contemplating using an intercooler in lieu of meth injection on my turbo 5.3. I have an S475 and would like to run between 15-20 psi. I would expect 650-750 rwhp with my mods. I saw a vertical flow intercooler that had good dimensions for my application with a 3 inch core, but only had 2.5 inch inlet and outlet. My questions is, do any of you think the 2.5 inch inlet and outlet would make a difference over a 3 inch? I could always pony up for a Treadstone, but I'd like to get some thoughts first. Thanks as always.
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Old Jul 8, 2015 | 11:29 AM
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Originally Posted by 3 window
I'm contemplating using an intercooler in lieu of meth injection on my turbo 5.3. I have an S475 and would like to run between 15-20 psi. I would expect 650-750 rwhp with my mods. I saw a vertical flow intercooler that had good dimensions for my application with a 3 inch core, but only had 2.5 inch inlet and outlet. My questions is, do any of you think the 2.5 inch inlet and outlet would make a difference over a 3 inch? I could always pony up for a Treadstone, but I'd like to get some thoughts first. Thanks as always.
A 2.5" inlet/outlet is MORE than enough for your goals. You size the cold size piping to the motors CFM rating NA. Most go overkill (and then some) on cold side piping. The core is what makes the big difference. Make sure it can handle the CFM you throw at it with little pressure drop while controlling your IAT temps. Usually the core is the problem with cheap china IC's.
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