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Old 02-21-2009, 10:19 PM   #17
ModularSpeed
Mach Underhood
 
Join Date: Jan 2007
Location: FL
Posts: 1,677
Re: JLT CAI or RAI? Whats best for NA...

Quote:
Originally Posted by tmhutch View Post
Nice thing about the CAI it can be positioned so the air filter hangs a few inches below the front bumper. If a person doesnt have to drive their car through water puddles or heavy rain this is not a problem and it makes the CAI much better than the RAI. My before and after testing showed an improvement OVER the RAI on the dyno. Cant remember how much. Would have to search for my old post on the other boards. Unfortunately not everybody has the luxury of dry weather only driving.

Really? So RAI with or without a shield, will make less power with the hood open, then a CAI on a dyno???

Was this back to back testing? What kind of power difference?

I do not doubt your experiences, but that is very hard to believe.

I could actually maybe see that happening (noticeable power anyways) if the RAI has no shield, and the engine/cooling fans are on....as I have seen NUMEROUS times where are car made more power with a shield, because of the hot air hitting the filter from the fans kicking on, throwing off the MAF.
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