Review: Mina Gallery Intake tube And Filter Kit On XJR. With Pictures
#21
#22
I wonder if a 3.75" intake would be any more beneficial than 3.5"...you would have to have a reducer at each end obviously, but 1.875 x 1.875 x 3.14 = 11.039
11.039 / 7.065 = 1.56
So its an improvement even over the 3.5" tube, but with having reducers on each end I am not sure if that increased surface area will matter much. And I think it would be quite difficult to try and fit a 4 inch tube there, so 3.75 would be about as big as I would try to go.
11.039 / 7.065 = 1.56
So its an improvement even over the 3.5" tube, but with having reducers on each end I am not sure if that increased surface area will matter much. And I think it would be quite difficult to try and fit a 4 inch tube there, so 3.75 would be about as big as I would try to go.
Changing the pipe diameter also changes the air speed... the air will slow down as it leaves the 3.5" MAF and expands to fill the larger tube, then speed up again when it's pulled into the smaller TB... this can create unpredictable and often undesirable results. There's MUCH more to sizing an airflow system than just "bigger is better" so, unless you have a dyno and can properly test the results, it's often best to leave it alone. BUTT DYNO DOES NOT COUNT 😂
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