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Triple carb airboxes/heat shields


moelk

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Getting the right amount of air to all three carbs using an airbox that hasn't been designed to do so could cause performance issues and lead to engine problems due to A/F ratios.

If you look at the ITG fiberglass or CF boxes they have a taper to them that speeds the flow up as it moves towards the rear carb. A non-tapered box could end up having you jet each carb differently. Depending on the box you would need to select a shorter velocity stack.

A foam full length ITG filter out performs the ITG box (based on dyno runs@Rebello's shop).

I have my headers heat resistant powder coated (inside & out) and use an under tray heat shield as well. The street and race cars both have louvered inspection doors and you can feel the heat coming out.

Signed,

an ITG foam filter guy for 15yrs on street and race car 240Zs

 

Edited by gnosez
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