Air-flow of V6

[sgo]

Can anyone tell me how much air a stock V6 sucks, (cu.ft/min ?)
as I want to use a non-stock intake/filter and would'nt want to restrict the flow.

[fazz1977]

Do your math and you should be right. Generally speaking a larger air box, intake and filter will flow higher than stock. ALWAYS a good thing.

[VT-565]

i think it is up around 650cfm @ 5000rpm...
very rare for an automotive air filter manufacturer to give you a cfm rating though.....good luck mate

[jules]

a couple of quick calcs and i get 332 cfm at 5000 rpm for 3.8 litres at 100% volumetric efficiency. it's probably around 300 as it won't get 100% efficiency.

[VT-565]

convert engine capacity to cubic feet and multiply by rpm=cfm
3800cc = 0.1341957cubic feet x 5000rpm = 670.978cfm at 100%VE

[jules]

yeah but being a 4 stroke, it only takes in air every second stroke, so you need to half that and you'll get my figure

[sgo]

Thanks all for the info. and the maths lesson.
(I did see some some filters in a shop that had a rating of 600cfm on the box.)

[VT-565]

yeah but being a 4 stroke, it only takes in air every second stroke, so you need to half that and you'll get my figure

ha ha ha....apologies.
need to up the caffiene intake.....however......1.suck 2.squeeze 3.bang 4.blow....thats down, up, down, up then intake on the next down. just for clarification

[jules]

hey you're right.. i should have said it takes in air every second rev

[sgo]

Well I ended up using a "Lynx ram-flow 600" filter and works fine, but:
One post in here mentioned their pod being noisy when cold but ok when the engine warmed up, and I thought that sounded unlikely, well that is exactly what my system does!
Also I didn't expect to notice any difference in driving, but it definitely is crisper and has a bit more "go".
Strange, but not complaining.