Repost: Some impartial airbox testing, Thanks Wak!
#1
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I know it is a repost, but has some good information.<ul><li><a href="http://www.wak-tt.com/mods/inductiontests/inductiontests.htm">http://www.wak-tt.com/mods/inductiontests/inductiontests.htm</a></li></ul>
#2
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Results make sense...neuspeed seems to have a rather large surface area without any obstructions to the flow, but on a hot day results may have proved to be different. Not bashing the test it self...its great and I wish more people would do this type of thing, just curious of the outcome under different circumstances.
#3
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I also found it odd that in the final graph, the VTDA seems to have performed much better at lower RPM than the Neuspeed intake...
IMO, it makes sense that a more restrictive intake would give you a little more on the bottom end and take a little more from the top on a turbo'd car. (Which I think accounts for the numbers from the stock intake.)
IMO, it makes sense that a more restrictive intake would give you a little more on the bottom end and take a little more from the top on a turbo'd car. (Which I think accounts for the numbers from the stock intake.)
#4
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are that Torque (and the HP number manually calculated from it) is grossly innacurate. It's known that, particularly on a chipped car, this number is off and purely an internal calculation to start with. A VAG output is not accurate. If it was correct we wouldn't need dynos now would we?! Flow is more closely linked to HP. No surprise that the P-Flow sucks more at higher RPM's. No restrictive casing at all to contend with......Just heat and noise. The airbox WAK uses on his own car? VTDA, Natch....:-)
BTW I'll have a befor and after actual dyno on a 3.2 after this weekend...
BTW I'll have a befor and after actual dyno on a 3.2 after this weekend...
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#9
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i'm not maaliish, but i hate it when my car is heat soaked and timing and boost are pulled. makes the car a slug and a pain to drive in lots of traffic when it feels like it's tripping all over itself.