^+1 for saving some coin and doing it right. now if only it was RAM air... >.>

 

RAM air doesnt do **** for MAF

 

^ thats why we have cobb ap's to tune it. If you can actually design a RAM air efficient enough to produce positive pressure at the intake manifold.

 

Elaborate please?

Interesting read on Ram Air. Basically it's impossible to get positive pressure with a car on a public road.
http://www.vararam.com/ramairinaroadcar.html

What you really want :D
https://secure.wikimedia.org/wikipedia/en/wiki/Ramjet

 

nice read. i guess postive pressure can only be acheived with something other then the stock intake. but we'll see.

ninja 636 has an effictive ram air system.

 

In order to not void warranty or have any issues the Mazdaspeed intake would be the best choice, I have one-works great.

 

I also have the Mazdaspeed CAI and agree it works great. I have used it in all kinds od weather, snow and rain, with NO problems. And I go through commercial car washes without problems. And I echo CRAZ8 that you want this one to avoid any warranty issues.

---------------------------------
40th Anniversary Edition

 

I had mazdaspeed cai for a while, now back to stock. I still have my rb duct so i might try to see if i can find a used revi to go with it. Cuz i think its design is better than aem/ms/stock. Engine warranty? I have my stock box. Not to mention if anyhing happens i probably just gonna rebuild it myself or buy it off fr0m kevin or paul.I

 

The Revi is a nice design but it can not make the same HP as a true CAI because it still gets air from higher up (ie: warmer air) of the engine compartment. Racing Beat and Pettit racing have tested several different designs over the years. If you have an engine problem and the car has to go to the dealer, you might not have the time to change out the Revi and put your stock box back in. Why risk that if you still have any of the 8yr-100,000 mile engine warranty left !!

For those who don't want to rebuild a rotary engine themselves (and it takes some expertise to do it right, I know) those owners will want to keep that Mazda warranty with a MS CAI.


-----------------------------------------
Owner of Seven RXs since 1973; over 1 million rotary miles driven on street and track

 

read the Magnuson Moss Warranty Act before making such claims...

 

don't egg him on, he is going to tell us about his bajillion rotary cars and his umpteen years of rotary racing experience. Clearly too stupid to educate himself on warranties and how they are (mostly not) affected by most aftermarket parts.

 

^ do tell do tell :o

 

The Revi w/ Ram Air Duct gets air from the same place the MS/AEM CAI does.

I currently have the MS CAI installed only because I like the way it looks, and it gives me more room to work with in the engine bay. Other than the extra noise, there was no noticeable power increase compared to the stock intake.

The only time I did notice a slight power increase, was when I had my TurboXS Exhaust with Race-pipe installed, and had the Cobb AP MazdaManiac tune.

 

When Racing Beat built one of my turbo RX7 race engines, I owned a Revi intake. You need to also add their ram-air induct if you want to get air from down low behind the front opening.

http://www.racingbeat.com/RX8/Intake...ers/18299.html

In my RX8 I chose the MSCAI partly because the filter location was still slightly lower yet. In the Renesis engine 1hp can be gained for every 10 degrees cooler intake charge,varying with humidity.

From HP Books "Street Rotary-How to Build Maximum Horsepower & Reliability into Mazda's 12A,13B & Renesis Engines" (quote) "There are many good quality CAI kits aavailable on the aftermarket for rotary engines. Companies like AEM, Mazdaspeed, & Racing Beat all make quality kits. Some of these CAI kits also do away with bulky and restictive air intake boxes and/or replace them with more efficient boxes. .....Some CAI kits come with internal water shields, while others utilize air bypass valves that open if a large pressure gradient is created (such as if water is clogging the intake to the CAI). It is also possible to install water socks over the air filter to help keep moisture out. While CAI are generally very effective at increasing horsepower,they are also remarkably expensive. An alternative is to construct your own CAI, but it is advisable to ask around and see what has been done on other enthusiast's cars, as it is quite easy to design and build a system that performs worse than the OEM system. ...... The trick to building a high-performance CAI usually lies with relatively large diameter tubing,smooth bends and transitions,direct routing to the airflow sensor (or carburetor) and an air intake location that has access to cool air. Often this means shrouding and/or heat shielding from the radiator and intercooler is required. Occasionally space can be found by relocating the radiator back or to the side a few inches to make room for the intake."

Looks like some of the same folks are responding to and posting to each CAI thread. Don't knock it from someone's who has been there and done it before some of you were born.

 

The only problem I have is you are all talk and text but nothing to show for it. The only thing that you ever posted that actually showed some half assed proof that you even have an rx8 is you standing next to your car at some lame *** event holding a trophy that could easily be mistaken for "worst bowler in my bowling league". You also walk in here and knock on everyone for using aftermarket parts that dont have the mazda name stamped on them bitching about how they will void some warranty. Every week there is a new story about "petit did this to my car" "racing beat did that to my car" "i raced this car" "i rebuilt this engine" .... stfu until there is some significant ounce of proof that you can put out there. You contribute absolutely nothing to the threads you post, yet you continue to flood noob threads with "you will void warranty". You walk in here quoting books like it is supposed to make us go "wow, this guy knows a lot" ... Get a clue .... owning X amount of rotary cars doesn't mean squat, and 90% of what you say on these forums is a testament to the fact that for each rotary car you owned, you flooded your brain with senseless information.

 

And your childish attacks on someone you don't know anything about shows your immaturity . This forum is for all RX8 enthusiasts, not just those you approve of.

 

I just don't approve of you spreading rubbish, get a clue before you post, it saves a lot of us from correcting you from misleading people

 

you must not know him?
he has owned hundreds of rotaries and been working on them since the dawn of time
i think he even invented the internet
how dare you question his infinite wisdom

 

I approve of Paimon as a poster and an rx8 enthusiast.

 

and he's got good eyesight
<sorry inside B@W joke>

 

Just because you've done it before most of us were born doesn't mean that you ever did right though.

 

Any CAI set-up that gets its air from under the engine/radiator, risks sucking up water/dirt as well, small amounts of water in the engine is usually no problem, but large amounts can be very damaging. Any amount of dirt could be very damaging as well.

 

sOUnds awesome..had it for about 6k so far....RB revi intake+air duct=smooth....i like the design of the short tube intake horn inside the filter body....

 

They all work tge same. Your just paying for name. I dont ghink theg give much in horsepower but they give a good sound to the engime

 

Im new to the rotary. Do theyhave throttle bodies? Sorry of ots a stupid question but, i nisg barely got my 09 tbis week.