Blow through MAF

Post by **Sil240** » Wed Mar 14, 2007 4:24 am

If someone made one of these make the Nissan MAF work, it'd be nice.I know the KA guys used to cut up there MAF and put it into a same Diameter size piece of PVC and glue it together.

http://www.atpturbo.com/Mercha...e=BCS

Post by **Shocker** » Wed Mar 14, 2007 5:09 am

looks like how an STI maf is setup.. makes it crazy easy to run a blow through, insures no leaks.

Post by **300Plus** » Wed Mar 14, 2007 5:14 am

Im running the stocker with epoxy around the electronics. but a buddy of mine in the Z world showed me an alluminum z32 MAF you just swap over the electronics. that would probably work if I find a pic or link I'll post it

here we go a pic and link to the thread:

http://www.sr20forum.com/showt...using

Modified by 300Plus at 8:27 AM 3/14/2007

Post by **fast_s14** » Sun Jun 29, 2008 6:54 am

i searched, found and conquered! Has anyone tried one of these housings? I have been searching for something like this for awhile hopefully the guy still has these for sale.

Post by **Coolwhip** » Sun Jun 29, 2008 7:14 am

the problem with that venture was, its not just unbolt and bolt on to the new housing. The electrical work had to be done as well to have to transferred.

there were other complications i believed. I spotted that as well back in the day.

Carl was the one that gave ear to some of those problems, hopefully he'll chime in...

Post by **gawdzilla** » Sun Jun 29, 2008 12:33 pm

you can't unbolt the sensor from the MAF like on other cars (lightning, sti, etc). requires you to cut out the electronics and either glue or weld into a new aluminum housing of your choice. this means good chance of messing up your MAF, or makes it a pita when your MAF eventually breaks. they all seem to break eventually

Post by **craz4240** » Sun Jun 29, 2008 1:10 pm

gawdzilla wrote:you can't unbolt the sensor from the MAF like on other cars (lightning, sti, etc). requires you to cut out the electronics and either glue or weld into a new aluminum housing of your choice. this means good chance of messing up your MAF, or makes it a pita when your MAF eventually breaks. they all seem to break eventually

Yep indeed I have had a couple nissan mafs apart and to even get the plug recepticle off the mafs you have to break the soldered joints.

Post by **fast_s14** » Sun Jun 29, 2008 1:23 pm

i started taking a broken one apart and i stopped at where the plug is solderid to the pc board. After you desolder the plug does the rest of the pcboard and sensor just pull out?

Post by **BoostFab** » Sun Jun 29, 2008 2:41 pm

Sil240 wrote:If someone made one of these make the Nissan MAF work, it'd be nice.I know the KA guys used to cut up there MAF and put it into a same Diameter size piece of PVC and glue it together.

http://www.atpturbo.com/Mercha...e=BCS

i had post that for someone on here a long time ago that were asking about blow through setup. you can use it w/ an sti maf sensor and use a safc to control the hotwire signals.

Post by **fast_s14** » Sun Jun 29, 2008 2:52 pm

how much hp can the sti maf support and can u tune it with the PFC?

Post by **Carl H** » Sun Jun 29, 2008 3:38 pm

once you desolder the connector you have to remove 3 screws holding the pcb down.if you DO take apart the maf that far there is actualy an oring seal...a little grey gasket rtv around that seal and then the sensor pcb remounted works. then if you reseal the maf plug and top using grey gasket and proper prep work you will never have another pressure issue.blowthru maf works but can be a pain in the ***...but it is nice when an ic pipe blows and you can atleast drive to the gas station.

Post by **jdmpurest** » Sun Jun 29, 2008 4:36 pm

All the blow through maf setups I've seen just used an N62 with one of those aluminum adaptor pieces you bolt onto it.

Post by **WhatsADSM** » Mon Jun 30, 2008 8:55 am

I ran a blow through MAF on my old RB20. It was a 2.5" MAF in blow through. It was the MAF from the LT1 trans am/camaro.... tried and true. I believe it supported somewhere around the 400-500whp range.

And if you wanted more the 3.5" Corvette MAF had the same connector and would flow enough to blow up just about any RB. (I believe people have made over 800whp on it).

Post by **jdmpurest** » Mon Jun 30, 2008 12:44 pm

WhatsADSM wrote:I ran a blow through MAF on my old RB20. It was a 2.5" MAF in blow through. It was the MAF from the LT1 trans am/camaro.... tried and true. I believe it supported somewhere around the 400-500whp range.

And if you wanted more the 3.5" Corvette MAF had the same connector and would flow enough to blow up just about any RB. (I believe people have made over 800whp on it).

Ford cobra mafs are good too.

Post by **WhatsADSM** » Mon Jun 30, 2008 1:06 pm

jdmpurest wrote:Ford cobra mafs are good too.

True story

Yea in fact I think the cobra MAFs have a native analog (0-5v output), whereas for the GM MAFs I listed above I had to make a small converter CPU and scale the output accordingly for the Nissan 0-5v hotwire.

Post by **Yellow4g63** » Mon Jun 30, 2008 7:45 pm

I'm going to be running the Lighting MAF blow through. Got a nice lil adapter to weld to my cold pipe. Anyone rem how far from throttle body the maf has to be? or dose it matter for the blow through maf setup?

Post by **fast_s14** » Mon Jun 30, 2008 9:19 pm

i think i read some where on here that your supose to mount i 12 inches or so away from the throttle body. Can somone confirm this?

Post by **Bwana** » Tue Jul 01, 2008 5:21 am

Mine *might* be 12" from the t/b but definitely not more and I've had 0 problems with it.

Post by **Sil240** » Tue Jul 01, 2008 5:33 am

I've heard from Supra guys that the MAF has to be at least 7" away with a straight behind it.

But i don't really know.

Post by **ripracer** » Tue Jul 01, 2008 4:49 pm

Does anyone have pictures of running a blow through maf on a RB. I had Carl tune mine for blow-thru and planned to run right abot the valve cover but it looks like the MAF is too big.

Will probably put it on the coldpipe coming up through the fender.

Post by **Carryl** » Tue Jul 01, 2008 7:28 pm

here my blow through setup.. no problems with it.... running 740cc injectors. tomei cams.. rb20 ....carl h tune

Post by **Yellow4g63** » Tue Jul 01, 2008 7:40 pm

Carryl wrote:

here my blow through setup.. no problems with it.... running 740cc injectors. tomei cams.. rb20 ....carl h tune

Hey what intakemanifold is that? got any pics of your cold pipe from it to the intercooler? I can't really see it too good.

Post by **Sil240** » Wed Jul 02, 2008 2:31 am

Yeah I can't really see either.

It looks like there is no ITM no, butt the water neck is there though....

Post by **jt15833** » Wed Jul 02, 2008 7:14 am

does this help with the reliability issue of blow job MAFs?Is there any knowledge that some MAF's (such as cobra) will survive better as a blow job MAF?

Post by **RBSilvia** » Wed Jul 02, 2008 8:28 am

lol lol lol

blow through, not blow job

Post by **Yellow4g63** » Wed Jul 02, 2008 12:24 pm

RBSilvia wrote:lol lol lol

blow through, not blow job

LoL I didn't cath that one lol

Post by **Carryl** » Wed Jul 02, 2008 1:57 pm

hey its an rb26 intake manifold....itbs removed ...ill snap some pics of the cold pipe in a few

Post by **Bwana** » Wed Jul 02, 2008 2:58 pm

Pretty much how mine looks except the bends are tighter in my setup.

Blow through MAF

Blow through MAF

Re: Blow through MAF (Sil240)

Re: Blow through MAF (Shocker)

Re: Blow through MAF (300Plus)

Re: Blow through MAF (fast_s14)

Re: (gawdzilla)

Re: (craz4240)

Re: Blow through MAF (Sil240)

Re: Blow through MAF (BoostFab)

Re: (WhatsADSM)

Re: (jdmpurest)

Re: (WhatsADSM)

Re: (Yellow4g63)

Re: (Sil240)

Re: (ripracer)

Re: (Carryl)

Re: (Sil240)

Re: (jt15833)

Re: (RBSilvia)

Re: (Yellow4g63)

Re: (Carryl)

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