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Gtr Arc Intercoolers

SiR_RB

By SiR_RB,
in Engines & Forced Induction

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SiR_RB Grand Master

SiR_RB

Posted
Posted

Hey fellas

I've got an ARC front mount intercooler on my r32 gtr, I'm in the process of changing/upgrading afew parts to get it ready for its tune at the end of the month...

Were looking at pushing 450+kw on e85 and a 6266, so I'm wondering if the ARC intercooler would be a problem seeing as it's only 70mm thick? Would it be benifical to upgrade to a 100mm jap core or keep it?

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GTRPSI Mentor

GTRPSI

Posted
Posted

Im not sure about 70mm but it does sound a little narrow for your power goal, then again ARC are one of the best coolers.

I would be considering a good brand 100mm to take that part out of the equation, nothing worse than realizing after all the work that you have a pressure drop across the ends.

Im sure you would get good money for it to put towards something a little freer flowing.

You may need to trim a bit of the front bar opening a little to make the thicker 100mm cooler fit, we needed to with our cooling pro one from just jap that we sold not long ago to change for a better brand due to a engine power upgrade.

GTSBoy Grand Master

GTSBoy

Posted
Posted

You could always hook up a dP gauge across the cooler you have at the power level you have now. Give it a run and see how much drop there is across it. Should give you (or one of us) a feel for how much it might increase to at your target flow.

Remember, if the new power level comes at a significant increase in boost pressure, that you get some of the extra capacity for free, from a pressure drop point of view, because the velocity increase through the tubes is not as great as simply scaling up the power level. The pressure drop pretty much scales with v^2 and also linearly with density. So if we're given the relevant before and after numbers we can get pretty close.

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