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DIY: Better Flowing Intake Box (Similar to RB Intake Box)

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Old 11-22-2007, 08:07 PM
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its not worth the 336 for maybe 1-2 hp
Old 11-22-2007, 08:23 PM
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Originally Posted by Renesis SE3P
Basically, the ECU adapted to how the airbox intakes less air with the walls and when it's removed, it takes in more air. The car's not use to it so what you do is reset it, it'll learn to take in more air and smooth out everything.
Removing the walls didn't cause me any issues, but taking a screen out did. When I mentioned it the response was that resetting the ECU would make it worse if it was already rough. RE: https://www.rx8club.com/series-i-aftermarket-performance-modifications-23/intakes-70472/page2/
Also, what reset procedure are you guys suggesting, the 20 brake tap one?

On the REVi, I guess it all comes down to whats important to you and if you have the spare funds. If I could afford to, I'd still take a MS CAI over modifying the stock box, but for essentially the same benefit this is worth the few minutes it takes.
Old 11-22-2007, 08:36 PM
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this wont **** my car will it?
Old 11-22-2007, 08:41 PM
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which part, and CRH, which fuse?
Old 11-23-2007, 04:02 AM
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no. 14, thanks to swoope

Old 11-23-2007, 04:03 AM
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Originally Posted by foo77
no. 14

NICE!
Old 11-23-2007, 04:07 AM
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^ no prob nice mod by the way i think i'm gonna back to stock,its easy to clean the filter than my RB intake
Old 11-23-2007, 04:09 AM
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Glad you like the mod The RB and stock are strikingly similar besides the panel vs cone filter along with the walls. Remove the wall and you get a RB intake
Old 11-23-2007, 04:12 AM
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Originally Posted by foo77
no. 14, thanks to swoope

you get your ems sorted????

beers
Old 11-23-2007, 04:13 AM
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^ +1 so anyone wanna buy my RB? lol
Old 11-23-2007, 04:13 AM
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No thank you I made my own intake modeled after the HKS Reloaded one
Old 11-23-2007, 04:20 AM
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Originally Posted by swoope
you get your ems sorted????

beers
not yet doin custom MS rear diffuser but i'll take a look on it after finish the project i think you right, maybe due to MAF connector wiring cause the problem..
Old 11-23-2007, 04:23 AM
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Originally Posted by Renesis SE3P
No thank you I made my own intake modeled after the HKS Reloaded one
just kiddin,i'm not gonna sell it to you guys here swoope know where i'm at
Old 11-23-2007, 04:27 AM
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Originally Posted by foo77
not yet doin custom MS rear diffuser but i'll take a look on it after finish the project i think you right, maybe due to MAF connector wiring cause the problem..
send my some photos when you are done.. i am pretty sure you know my email...

beers
Old 11-23-2007, 06:49 AM
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Originally Posted by swoope
send my some photos when you are done.. i am pretty sure you know my email...

beers
you got mail! thread hi-jack,sorry guys anyway,is there any place i can find K&N filter other than Mazdatrix?
Old 11-23-2007, 06:51 AM
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Originally Posted by foo77
you got mail! thread hi-jack,sorry guys anyway,is there any place i can find K&N filter other than Mazdatrix?
You can find it at any car parts store
Old 11-23-2007, 07:05 AM
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^ you right about that,but not in my country.. its really bad..
Old 11-23-2007, 10:24 AM
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these guys will probably ship international

http://store.summitracing.com/partde...85+4294925239+
Old 11-23-2007, 12:23 PM
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Originally Posted by mdw1000
Interesting thing I've noticed. Since I've had this done, my "fuel cutoff" feature that the scangauge displays doesn't kick in. This is when the computer cuts off fuel to the engine when you are coasting with the car in gear, when you let off the gas at a high enough rpm. It shows up as 9999 mpg and 0 HP on the scangauge (as explained to me by the scangauge people). Any thoughts on why this cutoff might not be happening with the intake stuff removed?
Last night it started doing the fuel cutoff thing again. Perhaps the ECU relearned something?

Also, I noticed when crusing in the low 70s, my exhaust seems to be louder. Perhaps because the engine is getting more air?
Old 11-23-2007, 12:32 PM
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Originally Posted by nmarz77
Have you been running the car with your front defroster on? I'm in the Chicago area and I know my windshield has been fogging up without it on the past few days. If so, maybe it's still providing a small amount of fuel because the A/C compressor is running.
Nope, but thanks for the thought!

I just put up another post that said it started doing the cutoff again yesterday. Not sure why, other than maybe the ECU adjusted to the increased air flow.
Old 11-23-2007, 12:45 PM
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so you arent having probs anymore?
Old 11-23-2007, 12:52 PM
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I don't know that I'd really call it a problem. Wouldn't have even noticed it without the scangauge. But yes, it seems to be entering the fuel cutoff mode like it did before the mod now. When I lift off the gas and the engine is under load (which is almost always is since i had an AT) with sufficient rpms, the scangauge shows 9999 mpg and 0 HP, which indicates the fuel injectors have been cutoff to save gas.
Old 11-23-2007, 01:10 PM
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hmm, well i guess if it doesnt effect driveability then its not. btw, how do you like the scangauge? i might pick one up on ebay
Old 11-23-2007, 01:23 PM
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Yeah, I know about the fuel shutoff. What I was saying was that it wasn't doing it for a few days after the mod was done. Then it started doing it again. Same type of driving conditions, etc.

Yeah, I wondered if what I was hearing was more intake noise, but it still sounded like most of the noise was coming from behind me. Interesting thing is it only seems to be louder at certain speeds/rpms.
Old 11-23-2007, 01:25 PM
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Originally Posted by chetrickerman
hmm, well i guess if it doesnt effect driveability then its not. btw, how do you like the scangauge? i might pick one up on ebay
I really like having the scangauge. You can read and clear codes, and you can display up to 4 gauges at a time. Hopefully more and more will become available as more of the xgauge codes get discovered, released, whatever.

You are welcome to check it out at the next meet we are both at.


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