blow thru maf (pics) UPDATE

[krayton]

for the few wondering. New setup which is a bit cleaner then before. running my stock bov after the blow thru with no problems what so ever.

minus, i think the stock bov is leaking. it had a small hole in it which i filled, but it sounds like its still leaking. but no stalling or anything close like that. blow thru is working perfect too.

let me know if you have any questions.

[krayton]

maf is here on the cold pipe

[240sxed]

glad to see all that tape and stuff is gone, it looks super clean =)

[goofynick6]

The stock bov is after the maf? If so, what was the point of doing the blow thru setup?

[Carl H]

while the new setup is much much cleaner, your welds on the pipes make me cry.atleast take an angle grinder to them and clean them up a bit.

[goofynick6]

while the new setup is much much cleaner, your welds on the pipes make me cry.atleast take an angle grinder to them and clean them up a bit.

Haha, yeah, guess he hasn't learned the circular motion trick yet...boost test it for leaks

[fly240]

hey, what kind of turbo is that. How did you get it set up?.

[Wulfgang]

Dude, you've got miniscule penetration on those welds. Slow down a bit or turn up the heat.

[Wykid 240]

DO you have a pic of your BOV?

-Jeramy

[krayton]

lol, noted on all the welds. i would lay a bead down, find a leak, then just give up and go to town to cover the leaks. trying to take a class this summer and get ahold of a 175 mig.

ill get my bov up later. i put it on my box that does a 180 to go in the intercooler. but thatll be gone as soon as i get an intercooler with in/out on same side

[krayton]

hey, what kind of turbo is that. How did you get it set up?.

t3/t4 .48a/r

...cant remember other specs. its an adpater box that puts it up there, but i wanna get rid of it. i was gonna push it back farther, but good ole left hand drive prevented that. switching to a custom manifold as soon as some other things go through.

Dude, you've got miniscule penetration on those welds. Slow down a bit or turn up the heat.

i kept trying that with no luck. id slow down, start going good and bam, pop a hole. this is my first time playing with a welder so i really need to get into a class.

email me with some other tips. id be glad to practice some more if you or anyone can offer some help up.

[email protected]

[goofynick6]

You need to go in small circles that overlap so you heat and melt the metals together, but w/o burning through, it's tough to get it just right.

Let's see more pics.

[fly240]

where did you get the adopter? and the down-pipe?

[krayton]

built the adapter box and dp. the adapater box is all show and less go : (

was basically just playing around with some ideas and extra metal i had. the air flow sucks....but it looks cool? does that count for anything?? : )

ill take pics of my 180 pipe box and bov. itll give you guys a laugh

[Wykid 240]

So, It doesn't matter where you place the BOV? I thought that you have to put it no less than 6in. and no more than 12in. from the T/B. . . . .?

-Jeramy

[300Plus]

I'm looking at going the Blow through route, is the stock rb25 MAF strong enough ? what psi do you think it'll hold? I was wondering if there was a metal one i could snag off another car like a LS1 or something. And to add to the question above, what was the point of running the blow through if you put the MAF before it?

[krayton]

the maf is strong enough.

lil lost on what else your asking though

[Carl H]

the maf will hold pressure fine but you may find that the square plastic cover that covers the electic bits may leak.ive had to boost prep 2 of the mafs ive used for blowthru to keep them air tight, its simple to do but does require some work.

[300Plus]

the maf is strong enough.

lil lost on what else your asking though

I'm trying to find out if there is a MAF of another car that would be easier to use then the stocker? (but it doesn't seem to hard now) and I was wondering why the guy in the post above ^ put the MAF before the bov after going through the trouble of making it a blow through?

[krayton]

which guy?

[300Plus]

I guess it was you.

[krayton]

I guess it was you.

the bov is after the maf

[Carl H]

the bov is after the maf

which defeates the purpose of blowthru maf.bov should be placed before the maf.

[foCk]

are you running the stock smic?

[krayton]

which defeates the purpose of blowthru maf.bov should be placed before the maf.

arggg u guys. alright im following the route backwards. pics are supposed to be worth a 1000 words here.

there is no bov in between the maf and throttle body.

300plus: all my intake pipes were made by me so the bov is not in the stock position. the maf was located where it was cause i knew i was going to MAP so i didnt wanna change the cold pipe afterwards

[krayton]

are you running the stock smic?

no sir

[krayton]

1 more of the new setup. no maf though, but to clear things up

[scottsi]

so is that a rb20 or 25? what feul management are you using in order to go with a blow through system. i havent quite learned how to use a blow through system, with my setup im going to use a z32 maf, but im still somewhat undecided upon a feul management, and it seems as if a blow through maf is teh best way to go to make power so the turbo doesnt have to try to pull so much air through such a little space.

[Carl H]

so is that a rb20 or 25? what feul management are you using in order to go with a blow through system. i havent quite learned how to use a blow through system, with my setup im going to use a z32 maf, but im still somewhat undecided upon a feul management, and it seems as if a blow through maf is teh best way to go to make power so the turbo doesnt have to try to pull so much air through such a little space.

a blow thru system will NOT make more power but is simply a fix for erratic idle caused by bov's and high lift cams.most stock computers will allow the car to run a blowthru with no problems however there are a few which dont like to play the game so you may need a retune.if you plan on running a blow thru system, set it up before it gets tuned as if you set it up draw thru then tune to that, a blowthru is going to have diffrent results and will require a retune.

[krayton]

seems most of the sr guys have to re-tune.

i did not though. i ended up swapping my z32 maf in and tuning a safc though. (after running the stock for a bit)

yeah, but if your working with where your maf is, you have no leaks, everything is fine....no need to switch.

i did this to just try it. my 240sx is always getting things done to it for testing or just ****s and giggles.