army_rx8

well i couldn't resist...i ordered my intake from racing beat today good buy money....but at least my 8 is happy. lol

DreRX8

rx8wannahave--this does not void warranty.

rx8wannahave

THANK YOU....THANK YOU, THANK YOU...I'm so greatful (now my wife has nothing to complain about other than $300...LOL) that should not be a problem...LOL, yeah right.

Well...it's time for me to start saving up! What's the best price you guys/gals have seen? So far $309 is the best I've seen.

$310 = about 15HP, RB...GREAT JOB!!!

The great thing is it looks completely STOCK...well, dead are the days that people said it was impossible or VERY hard to get significant HP out of the RENESIS. Mazda should stick this into their 8's from the factory.

I can't wait to add about 15HP to my 8...SWEEEEETTTTT!!!!

Phlash

IF you ever get something thrown up at you just because a aftermarket (non-OEM) is being used or even exist on your car, the Magnuson-Moss Warranty Act covers you at the federal level. Warranty can only be denied IF the aftermarket part caused the issue at hand that you are seeking a warranty claim for. You can get copies of it all over the place. One place that comes to mind is the SEMA website.

army_rx8

^ sweet great info on warrenties Phlash69..i shall have to print that out and put it in my car. muahahahaha.

rx8wannahave

Thanks PH-flash 69...lol

I already subscribed to this thread so thanks for the SEMA info. Gosh, the more I think of it the more I think we should send RB a big thank you letter, GREAT JOB RB!

Oh yeah...I forget, we thank them by sending them $300+ LOL

army_rx8

^hahah indeed i already thank'd them in this manner. :D

olddragger

iTrader: (3)

Hey all
well had my intake on for a few days now. Driving impressions are very positive. I have found out that good quality gas is a benefit. I was forced to use an fast food brand and it was apparent. Course that could have been just my car--anyway. The intake is the real deal. My idle is smoother(almost all gearshift shake is GONE), if you just give half throttle in 2nd gear with just the drivers window open you can hear it "open up" and feel a gain at about 4.5-to 4.7K It's almost like that kick we used to get with the K flash except at a lower rpm. remember that? The car definity has more power from that point on. Heck it's hard to get good gas milage because you want to play with that! The n flash, the intake and a lighten flywheel has made my car totally differant from stock. Much more smoother and powerful (and better gas milage I believe). The dang thing has some scat in it now. I gained 5mph on a entrance ramp to the intersate. I used to get to about 88-89mph now getting 94. No joke. 1st gear is just too dang quick --seems the trac can't keep up with the engine, 2 and 3nd are awesome gears in this car, but what i amn really surprised with is 4th. It pulls really strong now.
The RB intake i belive it's secret is the tuned velocity stack and the maf tube. My modified stock box was moving some air at speed like the rb, but I wasnt getting as much power. I was better than the stock box but not nearly like the rb. especially at below 6k-7k
Now if i can just put a little peice of plexigalss on top of it --cut the top part of the box----welll maybe not!
olddragger

Nemesis8

iTrader: (3)

Makes you wonder what the Ram Air Duct will get us....

English

I would like to see another couple of dyno sheets showing big time gains...K&N still claims ON THIS WEBSITE they get 9+ HP out of that intake....so.....show me the $$$. I like green jell-0.

rxeightr

OD,
Great write-up & review. You have a no-nonsense approach.
Charlie tells me my intake arrives today. Since I still have the 'm' flash, curious to see what difference I see.
It sure is fun squeezing out a little more juice from our rides.

Brice-RX8

Ok here the problems I see with this test....

1. The stock dyno was done back in December of 2003, ok that is cool but it did not have the "N" flash then, how do we not know that the "N" flash gave a nice gain over stock?

2. There was roughly 11,800 miles between the 2 runs, does the 8 run rich to start it's life, and the car would worn in much more over the 11,800 miles, that could also mess up the comparison results, right?

3. Finally the latest dyno run is not stock plus just intake there are other mods involved, how do you know they don't play more than you are calculating for the results?

I don't doubt that the intake gives power, people are feeling it but I think everyone should not get caught up in the numbers when you are not seeing an accurate test done, just my .02

dmp

Because the N flash doesn't affect the a/f ratios as it doesn't adjust the fuel at WOT...that's been discussed by rotarygod.

At the last Dyno day there was NO difference in power between RX8s of various mileages...my car had the fewest, at 4500 miles...dyno'd the same as an RX8 with 25K miles.

Mathematics proves the flywheel won't provide any gains in 4th or 5th gear. I bet the same can be said for the pullies. As we know, an Exhaust has never shown more than a 'few' HP gains. We discussed the N Flash...thus, the only variable is the Intake.

It's not a controlled test - but it's the only test we have. And evidence points toward the intake being the real deal.

Brice-RX8

Well then I was just making it known that the test did not come off as being very controlled, but if you are saying that this has all been discussed then congrats on the intake, looks like quite a deal.

dmp

I sure hope it's the real deal...lol. I've been hoping for 'something' which makes measurable gains on the car. I'm optimistic RB has delivered just such a product where so many others have failed.

Marietta 8

I have dyno runs from when the exhaust was done and when the RE intake was tested on file also. I'll be glad to post them for you to see if you really need to. What I found was 2.5 from the exhaust and non repeatable erratic readings from the intake ( this was when Chuck was first in development with his) I got one reading of 193 then it went back down on the next pull. What I saw most with the REVi intake was repeatable dyno pulls and no BS gains. I use a dyno to measure gains or losses, period.

There is no doubt the Racing Beat intake does what it is supposed to do. They don't pay me to say this, I think it's worthy of praise.

olddragger

iTrader: (3)

I concur. Charlie how is Boo? Is he still eating too many chew toys?!lol!
Guys , dont get into analysis paralysis with dynos and such. No offense Brice. This intake works. Its not magic but it does work. I think the CAI that is also coming may add a little more.
There is enough differance in this intake that all you have to do is ride in one car that has it and then ride in one that doesnt. Heck the way I figue it, that just by paying for stock filters over the life of the car would pay for this intake with its lifetime filter.
olddragger

army_rx8

^hehe good point about the filters..hehe i think i am going to justify the purchase in my mind this way...hehe kinda bad i justify it after i paid for it..hahaha:p

RotorManiac

I have to agree with this guy.
Long term 8 here in my country, used by known magazine, showed about 10hp increase after about 15k miles and the car is bone stock until now.
Also enviromental conditions change the reading within days, so dynoing your car after a whole season makes the parameters not comparable...
On the other hand, the best reason to buy something is the butt dyno If your butt tells you its good, then maybe I'll go buy one myself:p

J'sgr8t8

OD, and Charlie are 100% correct this intake is the best bang for the buck performance part on the market.I have had the K&N typhoon ( which caused me to lose HP above 7500 rpm) as well as a modified factory air box. 1st gear is a little lack luster but from 2nd on the power increase is nothing short of phenominal. I also have a cold air duct simular to Old draggers and I feel the higher MPH acceleration is improved. It is a waste of time and money to fool around with any other intake on the market.

legokcen

I met OD yesterday at an autocross and got a change to drive his car. Wow, it feels like a different car with the intake and the flywheel he's got. I loved it! The RB intake looks fantastic as well.

AKBen

A lighter weight flywheel should free up some weight and increase rwhp. Why is there "no possible gain"??? That's like saying additional rotational weight won't rob horsepower; I'm not following your logic.........

dmp

Because if one does 'The Math' they'll see that a lighter flywheel doesn't help HP - it allows the car to accelerate faster based on gearing. In 1st gear, the FW makes the most difference...by 4th or 5th any advantage is gone.

Brice-RX8

I know what you are saying here, but I have a thought to throw out there. Say the factory setup looses roughly 26% of it's horsepower in the driveline (which I think should be pretty accurate with the 8) and then you install a lightweight flywheel will it bring the driveline loss down? and also if it does bring it down for example to 22% then you have a gain in horsepower right, because it wasn't getting to the ground before, right?

dmp

No. Doesn't work that way...the lighter flywheel only works because of gearing. If the car had a direct 1:1 drive, a light flywheel, or NO flywheel if you could create such a thing sans AT, wouldn't affect the engine's acceleration.