I got both from RB. Sweet Mod!

Great thread, lots of good input. Looks like I'm going with the RB Revi w/ duct or the AEM, based on what everyone is saying about them.

Well...
 

Well guys i bought a K&N v1 and then i talked to people then read these 5 pages and they said it sucked I was disapointed in myself cause I allways search before buy but this time I didnt and now the car sounds like a tad ricey to me and I want to know from you guys from experience I want the mazdaspeed intake or Aem for performance and even if it adds 1hp as long as it sounds less rice if you guys know what I mean and better air flow

I absolutly love my K&N... sorry I cant recomend another one...

modding cars is like that - learn from it and make a better choice next time .

isnt the RB air duct gonna suck water in ur engine when raining?

No it does not, and I speak from personal experience,:)

but based on its design, when raining, water will still be sucked from the air duct even though they are just little rain. if the car is at high speed, the power of sucking air is getting bigger; according to this, water will probably go in....i guess not a lot water though, maybe just a little which can probably be held up by the filter....thats only what i guessed and i thought. actually i am looking to add the air duct on, just wanna make sure if it does suck water or not....

Does anyone have any info or videoclips of the FEED Intake?

There are holes at the back of the duct at the first 90 degree bend which water can pass through. Ofcourse there will probably be some water that might make it there but it will not be in any amount that could get past the filter.

All These Intake Look Ugly If Any One No Of An Intake Dat Looks Sweet Send Me A Message

Define what would look sweet?

I loved the way my K&N looked....

my k&n looks good too, and + a bit of foils, its really cool

what exactly are you looking for???


http://i32.photobucket.com/albums/d3...0/P1000093.jpg


http://i32.photobucket.com/albums/d3...4/DSC01419.jpg


http://i32.photobucket.com/albums/d3...0/P1000202.jpg

The Racing Beat is the best.

Watch out I might eat you as I pass by..........................:spank:

well
 

jedy54 da 3rd pic u got is a nice lookin intake wat brand is it wats it called

wat da name of da intake in da pic u akcs bout is called Pettit Racing. n is da bom yo

LOFL :lol:

I'm thinking about the REVi intake and the RB exhaust for my first real mod. Anyone have experience with the combined effects of these two? After a few weeks of searching it seems like this is the combo I'm looking for. I'm going for mild but noticeable sound increase and a little bump for the butt dyno. Seems like each mod alone does a little. I was wondering if together the effect is magnified.

-Jason

i dont have revi intake but thinking to the air duct...i have racing beat exhaust, when i just installed it, i ran out with my ride a bit and sounds not really loud but smells a little bit like burnt.....then i was told that was normal cuz the exhaust was new......then after few weeks, i found out my exhaust got a little louder and deeper than before and there is no bad smell anymore, i love it right now.......revi air duct was really good i heard, i think the combo would be a really good option for u.....i didnt buy ravi intake cuz i didnt do enough research for intakes. Since its not gonna make a lot hp, i dont care what i have for intake now and also i love my intake, looks good...

hey
 

thanks speed demon 32 for the info ps

HOLY RUSTED METAL BATMAN!

That's how big the air duct is for the Revi?!?! I had no idea. :Eyecrazy:

I'm thinking about skipping the Revi due to price and just getting the duct for my stock and dropping in a K&N panel. Thoughts?

Ok! First i apologize for not bringing any photos or videoclips on this thread but i will! I am a little bit like Hymee. But my trusty G-Tech is telling me that i have found some serious horsepower on my ML Wankeltrim cold air inlet. Today i have tested the prototype and it shows gains of up to 20 hp over stock intake box. First it was just like many of you said, irratic idle and when i drive it goes super lean, I have an Innovate LM-1 and it tells me about 16-18 AFR! Then i had some help from my cousine Johan that help me map the Haltech Interceptor to as is see it a good fuel curve from lamdba 0,80 to 0,90. The car seems stronger in the lower rews where we add number from-2 to 25 in some cells, then to 5-8 in the upper rews.At 7000-7500 rpm there is a noticable "ram tone" and the engine rews real quick to 9500 rpm. Last test for today was to run some 1/8 mile times on my trusty G-Tech. Last time, Thursday this week i managed with stock box an 9.66-96.3 mph. With my intake, figures was 9.39s-99.5 mph. Tomorrow i will be testing in the 1/4 mile and then on my RotoTest. I plan on marketing this intake as an Bolt On kit in Usa if there is an interest.

/Lasse

^^^I was all set to purchase the Odula intake that attaches to the stock airbox, until I came across this post.

Keep us informed about your developments and post a few pics when you get a chance.

Does any one know if the AEM Cold Air Intake feed off the stock air duct? or do i have to buy a new air duct to work with them AEM intak

This sounds promising but in the interest of transparency it sounds like Lasse is also using a piggyback ECU to get the most out of this.

Lasse can you confirm this?

Yes i can cofirm that i use an Haltech Interceptor. First when i test drive it vith the 4" pipe and Simota filter the engine went really lean like lambda 1.10-1.70!Then i mapped in most fuel in the low, midrange with numbers from -4 to +20-25 in the cells (don't know what that is in %). At hi rews 7000 and up only numbers of+5-10 were used. The only issue i have is that the engine wont idle when i let off the pedal quickly, but if i cruise and take caution it will. I think i must add a screen filter and map idle more. Anyway the car goes great and have never been so strong before! It goes really fast up to 200 km/h and keep accelerating after that...Tomorrow my "mapguru" Roger and i shall dynotest and finemap it for maximum hp on my RotoTest. Keep you informed!

/Lasse

Guys, is there any gain if I just change from my Mazdaspeed drop in filter to RB REVi intake? or should I just opt for RB ram air duct without changing the intake box? Which one do you experience with better result? Thank you.

It's a complete unit - nothing else needed. I am curious if anyone has a picture of the where the filter is. I've yet to see that.

thats the thing i am wondering too.......does it go under your car,like the most dengerours cold air intake?????(cuz i have read a article about intake which claims if the filter goes under the car, then its gonna be really dengerous when raining, cuz it might suck water in your engine directly).....i might be wrong

most people say air duct, cuz thats how the revi short ram intake transforms to a cold air intake, like "TRANSFORMERS". cuz the air duct could mostly suck pure air from outside. Also just getting an air duct would be cheaper.....

Today i have dyno test my REX-8 on my RotoTest.The performance mod for the day was ML Wankeltrim prototype 4" intake with Simota polyurethane racing filter.In august when it was hotter i have 190 hp@wheels. Today with some fine mapping of lambda and power the gain was 15 rwhp! Now the power is 205 rwhp@8500 rpm, and torque 208 Nm. Ihave find some 15rwhp in the lower,midrange also! Of course i have dyno sheets to prove, but i must take help to post it!

Lasse

Cool!

I dont mean to be "That person that says its not valad" but if the pulls were done on days that were nothing like each other, you will get different results. Hotter day means less power. cooler day means more power. (humidity also plays a part)

now I am not saying that yoru mods didnt do anything, I am just saying that they may not have made that full 15 h.p.

when I dynoed my car it was 80 degrees, so a nice normal day. it produced 202 h.p...... Just an FYI :)

Thanks for the info though.

I agree with you! I shall today test the stock air cleaner box and use the map i dyno with in August. I will try to adjust the map today to see if there is any hp gain to have now in October with cooler air and higher humidity. Keep you informed.

/Lasse

On Saturday i did not have the time to get some new numbers on my stock air box, but i did some pills mods and fine tune the map for more power and find it! 212.8 hp@8500 rpm!This is on a hub dyno RotoTest. 238 hp in the engine dont sound much but i only had 185 rwhp back in 2005.

/Lasse

now your 205 vs your 212 I find valad. (i am sure the days were very close as far as weather is concerned)

Great job tuning!

Very Exciting Lasse! Interesting to know that a larger diameter intake will indeed increase overall power. I didn't think the intake was a limiting factor. That's cool to find out. Of course to change the diameter we'll all have to get our cars tuned with a Piggyback ECU. Either way I think we need one to make the most of intake mods.

Yes that is for sure when you have my mods you definately need a Piggy back to get the most out of the fuel. I am now waiting for PeterG to phone me so i can leave my car at his garage this week. It shall be really interesting to see what his headers can do powerwise!

/Lasse

I have a new concern about these aftermarket intakes: When you increase airflow at lower rpms, say below 5500ish, you increase horespower but decrease torque. It could be argued that torque is more inportant at these lower rpms, right? The way you increase torque down there is by cutting some of the air supply and introducing more fuel into the mix... hence the stock air intake having 2 seperate paths forward of the air filter. So is it possible that these cute looking intakes are actually hurting our power to the concrete below 5500rpm???

Just a question, I have a Revi and duct on my baby...

FYI- search SDAIS (sequential Dynamic Air Induction System) for more info on this theory.

That could be true, but Dyno saids the other.

Its always good to have more air ... the stock designs are really smart. Thats probably why you dont see much gain from aftermarket intake ... mostly for bling and sound with minor increase.

I think most ppl on this forum knows what SDAIS do. but it has its problems too.

^^^ agreed.

Mazda did a great job with the stock intake. they tried to maximie power, while keeping it quiet.

intakes are for bling and noise. both of which I love! :) hence the reason why I love the K&N. :D

I guess everybody needs a little bling now and then!

I have a question about the mazda and aem intakes, they look like the angle down and sit low on the front bumper, has anyone had any problems with water getting into their intake, and possibly into the engine or are the pictures just kinda making it seem worse than it really is.

The MS and AEM are the exact same thing and I have had the AEM for quite a bit now and I have had zero issues with water being brought into the intake and rains alot here in Vancouver. It comes with a Mesh type sock to clock water to go into your intake just put that on.

how loud is the stock airbox in db? and for those of you with the aem intake is 92db really dam loud or can you live with it?

so which CAI workd the best?

/kill

all of them. :)

read the prior post.

Just go with the one that looks the best to you. (or sounds the best)

What Simota version is this? Is it a one off?

http://img403.imageshack.us/img403/9...03onac3.th.jpg

+1

and I have Mazdaspeed, like hitman said its the exact same thing.

sock on, no problem :)

and I got it for cheap, brand new. Mazdamotorsports rox :)

That is a Mazda 3 Carbon Charger intake. Can be found here:
www.simotausa.com