blow thru maf (pics)

[krayton]

just thought id share with you guys.

story: did my turbo upgrade and my stock maf maxed out at 10psi (the stock spring on the wastegate). So swapped in the z32 maf, and decided to set it up as a blow thru.

no problems so far. i wrapped up everything trying to protect from heat. this is a track car that sees a lot of heat, so im just doing what i can.

i am running a safc too for the z32maf.

and as to why i did it.....well, no real reason. just goofing around.

[krayton]

2

[Carl H]

haha, that is ghetto as hell but hey if it works it works.from what i understand doing a blowthru is relatively simple but you are still gonna have problems running the stock bpv atomosphericly as it is still venting metered air.is that a poweraid bottle i see being used for a coolant overflow tank?

[krayton]

lol, yeah it looks pretty ghetto. but i gotta try.

im not using the stock bov, and the new bov will be after the maf.

and yes, thats a poweraid bottle

[Slo_240sx]

Hahahaha, wow. Hey if it works it works, could have cleaned it up though like mine

[krayton]

Hahahaha, wow. Hey if it works it works, could have cleaned it up though like mine

i cleaned mine up when it was first done.

....but you start to not care after you hit your first wall

[Joe]

i cleaned mine up when it was first done.

....but you start to not care after you hit your first wall

then your secondthen a street signthen rexthen another wall



dude that look ghetto, we gotta clean that up

heatshield for the turbo and dump that damn wastegate out of the engine bay already.

[WDRacing]

If it see's track time, sucking in all that hot underhood air is going to kill you more so then the heat soak of the piping. Reroute your intake or build a partition. You can make a nice partition out of tool box foam. Cheap and effective...

[Carl H]

lol, yeah it looks pretty ghetto. but i gotta try.

im not using the stock bov, and the new bov will be after the maf.

and yes, thats a poweraid bottle

your new bov needs to be before the maf else you are gonna have the same problems as venting the stock maf in the stock configuration.

[Bluefire]

haha looks like you just wrapped it in tin foil. Anyways I wonder how much boost the plastic maf can hold before blowing up??

-Bluefire

[krayton]

If it see's track time, sucking in all that hot underhood air is going to kill you more so then the heat soak of the piping. Reroute your intake or build a partition. You can make a nice partition out of tool box foam. Cheap and effective...

right on, exactly what i was planning. that is this weekends project. friend is bringing over some metal and we are making it for both our cars.

and during a few test runs, my under hood temps were outrageous. so i wanna build a shield around the wastegate, and also vent it outside the engine bay (probably where a lot of my heat is coming from )

[goofynick6]

BOV must be before MAF as Carl H stated, and the MAF can take about 30psi before it will bust I think someone tested before..

Nick
Modified by goofynick6 at 5:25 PM 4/15/2005

[krayton]

BOV must be before MAF as Carl H stated, and the bov can take about 30psi before it will bust I think someone tested before..

Nick

i hear ya guys. i get confused with the before and after. or prob cause i just woke up.

but i gotcha guys

[goofynick6]

edited my post just now, I meant MAF, not BOV can take about 30 psi..hehe

[Slo_240sx]

i cleaned mine up when it was first done.

....but you start to not care after you hit your first wall

Now that clean motor is more like it! Very sexy! yeah I really don't care after I hit crap either lol.

[Miata Master]

want to remove clutter take out the power steering , who needs it. That power aid bottle is a cheap POS coolant resevoir, I'm gonna use a Gatoraid bottle .

[Slo_240sx]

LoL You Jiggerwriggs. While youre at it lets use a cardboard boxes and make body kits and spoilers. We can call it Cardboard Conceptz.

Hey miata do you still have the old shifter bushing that I sent you?

[toki]

NICE TIN FOIL MAN, WAY TO SUX0R!!!1 omglolollercake.

[Sil240]

Hey how is that Blow through working for you?

Im thinking about doinf the blow through setup too, but im going to mount it directly to the TB, so that I can choose to vent my BOV to atmosphereStill debating if i should or not1) Its easier just to be lazy and not2) But I'll be making pipping anyway3) If i re-route you get better response

Still not sure what im gonna do

[Carl H]

Im thinking about doinf the blow through setup too, but im going to mount it directly to the TB, so that I can choose to vent my BOV to atmosphere

wow, do a bit more research on the blowthru concept before you do that.

[krayton]

blow thru is going good. whats nice is i blew some piping and it drove like nothing happened.

yes, putting your maf before the bov will make things work with open bov.

my new setup im building will be tits. my custom top mount adapter box. im still gonna run blow thru and im relocating my bov. making all new pipes, including the stock L off the tb.

will post pics after i finish.

[Sil240]

why do you say that?Am I missing something?Im not gonna be running crazy boost or anything

wow, do a bit more research on the blowthru concept before you do that.

[Carl H]

why do you say that?Am I missing something?Im not gonna be running crazy boost or anything

by mounting the maf directly onto the tb you are gonna cause hella turbulance in the maf signal due to the opening and closing of the tb.this may make (ok proly will) make the car stumble and be worse to drive than if the car had a super leaky bov.all of this info can be found out there about why you should not do that, i know on my setup that i will be leaving a bit of space for the airflow to settle down before and after the maf.

[krayton]

by mounting the maf directly onto the tb you are gonna cause hella turbulance in the maf signal due to the opening and closing of the tb.this may make (ok proly will) make the car stumble and be worse to drive than if the car had a super leaky bov.all of this info can be found out there about why you should not do that, i know on my setup that i will be leaving a bit of space for the airflow to settle down before and after the maf.

that sounds very like it could well be true. wish i did some more research. just a note with mine though, its after the stock elbow, and the stock bov is not working. not to sure if it sees the turbulence as if it were near the tb, but where its at now, im having no problems

i know you can do some more research on ka-t.org they have plenty of people running the blow thru.

[Wykid 240]

Slo_240sx: I see that your bov is right next to your turbo......why did you put it there than putting it at the t/b? Is there a benafit to putting it at the turbo?

-Jeramy

[JonPowell]

Did you read any of this thread or just look at the pics?

Blow through MAF...BOV must be BEFORE the MAF or you run in to the same problems of just leaving it stock.

[Wykid 240]

So, where is his placed? I don't see it in the pic. . .

-Jeramy

[Slo_240sx]

Slo_240sx: I see that your bov is right next to your turbo......why did you put it there than putting it at the t/b? Is there a benafit to putting it at the turbo?

-Jeramy

No beneifit by putting it there. I took the skyline pipe (blitz pipe with BOV) cut a peice out so it would reach from the turbo to the lower I/C piping. Its just a modded hot pipe because I didn't want to hack into the nice Hybrid piping. I got a block off plate I made over the stock BOV hole.

[krayton]

finished up my new setup. ill post for you guys in a bit.

oh, and it looks like Blitz's r34 rb25 is running a blow thru. was in this months Super Street. Me likie.

pics soon.....

[Wykid 240]

DO you have pic's of your blow thru. set-up?

-Jeramy