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Intercooled Na R33 ? :s

YZ250ftw
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YZ250ftw Explorer

YZ250ftw

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Posted

A friend of mine managed to get hold of a cheap FMI for his R33. The thing is its naturally aspirated.

He installed it and now reckons hes gained some power.

Personally I think hes full of crap becuase the motors Vacuum wouldnt be enough to pull air through the intercooler properly and just create huge amounts of lag?

Obviously it needs to be on a dyno, seeing as he cant afford it can I get a professional opinion on this?? sounds a bit sus to me haha!

Thanks, Dave

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Pal Veteran

Pal

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Posted

a intercooler is there only to cool charged air which is heated up under compression of the turbo. no turbo means the air is at ambient temp anyway and doesn't need cooling. I call placebo effect and is a waste of time and is a illegal mod anyway

The Bogan Grand Master

The Bogan

Posted
Posted

LOL, right, the intercooler/aftercooler is there to remove the heat from the compression of the intake charge that a turbo/supercharger makes.

The N/A motor will draw ambient temperature air if it has a cold air intake or hotter air inside the engine bay if you run a unenclosed filter type set up (pod) as here is no compression of the intake charge.

A N/A motor will always have a cooler intake charge than a Forced Induction system, unless its got a ice box or a NOS type cooling spray which is not really what were talking about.

The intercooler/aftercooler on the N/A motor must/will restrict flow which will lower response and power.

But it wouldn't be the first time physics and common sense has taken a back seat to some fully hectic ideas.

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