A Rx-7 Vaf
 

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

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.

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.

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.

*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

Top End
 

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)

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??"