it's been dyno proven bro.. i came from honda and most of the racers at the tracks uses a v-stack at the end of thier intakes, even turbo cars uses them for quick spool up. anyways i just did a iat (intake air temp) test with a my setup the xd and while the car was sitting it was at 111 degrees, whike driving the iat drops to 82-79 degrees. i did a test with my bro's xrs with a injen cold air intake and his was at 70-73 degrees sitting and 68-70 degrees whike driving. the outside temp is 70-73 degrees today.
---------- Post added at 01:23 PM ---------- Previous post was at 01:00 PM ----------
even the nissan guys uses this. heres a link to a bpi product review for the nissan forums. it's more effected at the track with no filter though.
http://www.sr20-forum.com/product-re...low-stack.html
couple from honda forums.
http://www.honda-tech.com/showthread.php?t=2231492
http://www.honda-tech.com/showthread.php?t=2646800
http://www.aspeedracing.com/showthread.php?t=6652
http://forums.clubrsx.com/showthread.php?t=511839
http://www.honda-tech.com/showthread.php?t=1591210
muscle forums
http://www.355nation.net/forum/engine-drivetrain/1784-bpi-intake-velocity-stack-dyno-info.html
---------- Post added at 01:26 PM ---------- Previous post was at 01:23 PM ----------
Originally Posted by simmons0613
Ok, I'm a little new to the velocity stack thing. Do you need a filter for them?
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on the tracks you don't have to run a filter but daily i would advise using a filter.