ITS-A-PRO

Will the RX-7 vaf rally help me with the mods I have?And what exactly does it do?
As far at ET's and WHP

beachnut

I read somewhere that VAF stood for Vane Air Flow, which is the type of meter we have on our Pro's, but I've also seen it called Volume Air Flow. I don't really know for sure, there's others here much more knowledgeable than I on these things. Also, from what I understand the rx7 vaf will only give you about a 5hp increase, but only over 6000rpm, and that's why I haven't considered getting one.

mazdaspeedwest

it is infact a VAF, Volume Air Flow.

On your LX engine, it will provide a boost of ~5hp above 6000rpm, below 6000rpm, it's the same flow as stock.

click here for my how-to page on installing it and tuning it.

RX7_2ner

In service manuals they call it a mass air flow sensor. But it is actually a vane air flow sensor. The difference is the vane air flow sensor has a door which controls the amount of air going into intake, MAFs are just straight through.

1.8SOHC

*lol* you don't know what a VAF is?? ,the proteges had a VAF, the RX-7's had a VAF, hell even the late 80's escort GT's had one, and the diff between a MAF and a VAF i believe was explained by RX-7_2NR above, and the SAE handbooks refer to them both as a MAF to make it easier for braindead mechanics to know what they are looking at

ITS-A-PRO

So it would help at the top end of the track,I guess.Well thanks guys that is why I got excited when I found this sight.I had never heard of using the RX-7 (thingy)

1.8SOHC

ok, maybe i jumped a little bit but when someone puts up a post, "VAF....wtf...its a MAF" , thats not the proper response either, and they are also dead wrong , a better way to put it would have been "VAF, well i always thought that they where MAFS, what is a VAF and what makes it diff?" but the SAE manuals do refer to them all as MAFS for the reasons that i previously stated, which are to avoid when some guy with a protege pulls into a shop in the middle of nowhere, Bubba Bo Bob Billy the "trained" mechanic, opens up the manual points and says, "VAF?? whats this'n there fer??"