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Old 18-10-2021, 06:57 PM   #21
Aaron
Regular Member
 
Join Date: Jan 2005
Posts: 194
Default Re: XR4 Cold Air Intake

On the airbox front I made a shroud to keep more incoming cool air around the TB while moving. It helped a bit, it sealed the upper area from cross member intake over the filter up to the washer filler and walled in the back and side of the filter. Like the mountune, warm air was always coming in, but by making the air from the vehicle movement move in a more set path I did see drops in intake air temp “sooner”. But not significant enough.

No perceived power change.

I’m of half a mind to blow mould some spray foam in a bag with some basic walls to get a volumetric representation of the space then shave that buck down 10mm and vacuum form around it.
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