I read through some posts(did you know there's a search button ) about maf sensors & screens etc.
Anyway, I cleaned my sensor & removed the first screen & both dividers in the airbox. Wow, I now have power low down, it feels like the first rx8 I drove. I remember commenting on the torque as I was expecting less.
The maf didn't look dirty when I pulled it out but I cleaned it anyway. Power loss must have been spread over a long time as I didn't think there was anything wrong. Coupled with the cs catback i've recently fitted the rex feels more muscular

 

Good to hear, I've been contemplating cleaning mine for a while now.

 

What and with what methods do you clean this with?

 

1) Your butt is not a dyno
2) Consensus is not science

Cleaning the MAF = good
Removing screens = bad

 

The only real gains you might get with the stock airbox is cutting the intake hole to be a bit bigger. Removing a screen will probably make your idle worse. Those dividers are there for sound, not hidden power.

 

i dont get how removing a small screen would give u such a huge power gain, and maniac correct me if im wrong but doesnt the screen act like a filter for the maf. I.E. you would take the chance of damaging

 

the dividers are basically baffles to deaden air box sound.

the screens are there to even out airflow. Your car is maf based, airflow is important.

 

I took 1 screen out as well & while I did not percieve any gains from doing this - it did no harm (that I can tell) either.
RB says the screens suck about 1hp each so if you take one out & it does no harm - why not .

edit - that was about 10,000 km ago I took the screen out .

 

because mafs are expensive and im all set with messing w/ mine.

Also for the one horsepower gained. is it really worth messing with.

 

He only removed one of the two OE screens, which Racing Beat and some others have proven is operationally sound

 

racing beat designed their intake to flow, and they didn't need both screens.

k&n v1 was so bad because it didn't flow air across the maf properly.

 

RB can get away with 1 screen because they have a full horn placed before the screen to keep airflow consistant. The OE has to use 2 screens because the horn isn't complete.

 

edit: self-depreciating post deleted to protect the insecure

https://www.rx8club.com/showpost.php...3&postcount=41

https://www.rx8club.com/showpost.php...77&postcount=1

https://www.rx8club.com/showpost.php...&postcount=159


.

 

I guess a little self-deprecation goes a long way.

I made my own CAI, but I didn't have to worry about any engine air touching the intake since it's sealed away in the bumper, with only a 11 degree bend in the pipe.

 

edited for not being user friendly

no skin off my back either way ...

as for not contacting the engine bay heat, what did you insulate your pipe with where it passes through the engine bay?

 

He said he felt more torque and power. If his MAF was dirty, he well could have had noticeable gains, but the baffles and screens aren't going to give him anything measurable. Which is what we appear to be discussing.


Thermal barrier, and a radiator shield. Intake temps = ambient.

 

I didn't quite read it that way, but I edited my not-playing-nice post just the same

ok, sounds like you covered the bases, nice work

 

According to RB, and they have a dyno, the screens--at most--kill 1 HP per. And, yeah, the screens do not obstruct air flow rather, they make it apply evenly over the MAF. I don't see how the butt dyno can feel 1HP, at the most.

Maybe your car is louder and you are pressing on the accelerator harder to hear more sound...

It's all in yer head, main! Put them screens back on, Mazda Engineers know a thing or two more than you...if the car accelerated better without them, they'd have done that.

 

I see you have a few mods Phantom - why did you bother if Mazda Engineers know so much ?

 

read learn..

watch..

beers

 

he has no mods..

where?

beers

 

Mazda used two screens due to the partial air horn inside the intake box, the extra screen assists in straightening the air before it gets to the MAF (mass air flow) sensor.

 

are you kidding? yeah boyee! 1HP gains are the shiznit! you can DEFINITELY feel a 1HP gain in the butt of your pants! Man we should all do this free mod!

 

He probably disconnected the battery when he cleaned it and is feeling the ecu before it generates it's maps.

 

^ I don't think disconnecting the battery clears the maps. You have to use the odometer button reset...I think.