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Old 06-15-2006, 04:04 PM   #1
DISCOPOPE
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URgt35r w/t3hM3finj3cki0n

Default UR gt35r kits... larger MAF housings?

ok, so i'm digging through my box of goodies that just came from UR.
i'm noticing that the MAF section is stock diameter.
what have people been doing for larger, stock location maf housings?

greddy looks like they make one for their foam filter intake kits, , but so far i cant find anyone that sells just the housing.
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Old 06-15-2006, 04:05 PM   #2
WRX8XB
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Godspeed has made some IIRC
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Old 06-15-2006, 04:14 PM   #3
DISCOPOPE
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/hugs
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Old 06-15-2006, 05:20 PM   #4
InfamousDX
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I have one for sale.. right from UR.

http://forums.nasioc.com/forums/show....php?t=1021336
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Old 06-16-2006, 12:24 AM   #5
El Gato
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Quote:
Originally Posted by DISCOPOPE
ok, so i'm digging through my box of goodies that just came from UR.
i'm noticing that the MAF section is stock diameter.
what have people been doing for larger, stock location maf housings?

greddy looks like they make one for their foam filter intake kits, , but so far i cant find anyone that sells just the housing.

You will make a lot of power with your UR just the way it is. Max it out before you ask this question again, maybe you will not need an enlarged MAF
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Old 06-16-2006, 02:54 PM   #6
DISCOPOPE
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thank you, but i would rather not max it out and ask again.
i would prefer to have the information well in advance.
i am inclined to have a larger section on hand when i take the 8 hour trip to get tuned.

that would more apealing than maxing it out, not having an option to continue, pulling the car off making only 80% of it's potential.
i would very much not enjoy blowing another $400 day on the rollers.

but thanks.
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Old 06-16-2006, 03:19 PM   #7
ShaggyGT
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Perrin BIG MAF housing would work fine. Anything larger and it will need to be custom made. The UR MAF housing will support up to 19+psi after that they recommend you go blow through or a custom setup. At 19psi with the 35R kit you should be well over 400whp on pump.

I was trying to track down a 3.25" ID housing but that is pretty much impossible, but that is what I would suggest. Anything larger than that will be too big and will be a pain in the ass to tune.

-Matt
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Old 06-16-2006, 07:45 PM   #8
DISCOPOPE
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^ thanks
are there 2 big mafs?
the big maf housing i have is from their standard $200 big maf intake kit.
and it is 3" and chokes to 2.5"
unsavory since the UR intake section is 3" od untill just before the turbo.

looking at compressor maps i can certainly say that i plan to run more than 19psi on a daily basis. (not exactly the right one i think, but close.)


if 2.75mm is not enough to keep the maf headroom above ~25psi and no avalability to do a blow through, (see also tmic setup) i assume that a 4" od intake setup and a 3.25 or 3.5" maf housing would be the next step? that sounds large.

stock maf location perrin gt35r kits run a 3" maf housing and push close to if not 30psi.
yes?
maybe i'm asuming, but it looks like they take the standard big maf section and use a few enlarging couplers..
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Old 06-16-2006, 08:01 PM   #9
Physics Junkie
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Do a blow through...or do custom fabrication.
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Old 06-23-2006, 01:49 AM   #10
knucklesplitter
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APS is going to sell their rotated CAI separately soon. It's a 3.5" OD one. The MAF part is 80mm (3.15") and it also has a 65mm insert sleeve reducer that I assume could be bored out for other diameters.
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Old 06-23-2006, 08:16 AM   #11
Capt Crunch
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Quote:
Originally Posted by mattnogs
APS is going to sell their rotated CAI separately soon. It's a 3.5" OD one. The MAF part is 80mm (3.15") and it also has a 65mm insert sleeve reducer that I assume could be bored out for other diameters.
unfortunately it put the MAF right in front of the turbo.
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Old 06-23-2006, 12:24 PM   #12
DISCOPOPE
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god is making up a ~70mm unit for me
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