I just installed my RB Revi intake & ram air duct last Saturday, and refilled my gas yesterday...

I got 13.7 mpg!!! This is the lowest mileage I've ever had, even lower than my first tank of gas (15.5 mpg). Before I usually got 18-19.

I thought the Revi was supposed to increase your mileage! But alas, I forgot to consider that it also increases the weight of my right foot. :ylsuper:


First impressions of it are:
1. Small but noticeable improvement in acceleration over 50 mph.
2. Sound is noticeably deeper and louder when gas is floored, in a satisfying powerful sounding way.
3. Decreased mileage :)
4. Increased tendency to hit speeds over 80 mph to feel the ram effect
5. Increased fun :)

I have heard that the idling would be smoother, but it feels the same to me.

One minor gripe, I kind of miss the unadulterated sound of the rotary engine. The new roaring in the airbox drowns out some of the original "chainsaw" sound.

All in all, I love the Revi and would recommend it to any 8 owner!

I think its just because you're mashing the peddle more often right now to hear what it sounds like.

I'm sure the mpg will improve once you stop "testing" the Revi

not possible since it delivers more wonderful resonantly tuned air effective leaning out the mixture, 100% the fault of ur right foot.

Don't worry, it is not your fault if your foot acts like that. :boink:

Try an ECU reset.

Try an ECU reset.
ditto:wiggle::wiggle::wiggle:

Usually opening up the air box will cause an increase in fuel consumption under hard excelleration, Your making more power with the increased air flow thus sucking more gas. The ECU also has to adjust to the new air dynamics and might take a few tanks of gas to do so. Mileage should be the same or better at normal driving speeds.

Try an ECU reset.
I am not sure why everyone is so bent on an ECU reset. I have done it twice, with a good time gap between them, and both times my mileage went to HELL. And I did not notice any difference in power or idle, only a loss in MPG. My advice, leave the ECU alone, it knows more than us. Just my 2 bits.

Damn right foot!

Just wait awhile and your nervous right foot will clam down.

I remember seeing this somwhere...

E=(RX8)x(My Right Foot)2