maf relocation

[240s-sex]

saw this picture and i was interested, would i need any tuning in order to move my maf to the cold pipe? i thnk it would be awesome with a top moiunt set up so you can run open inlet. props to this guy

[Beems240sx]

as far as i know. no tuning would be needed. all the MAF cares is that it sees air moving through it. the pressure fro boost wont hurt it at all. this will also let you run any kind of atmospherical BOV without worrying of dieing at idle

[duffman1278]

Look into it, I believe some people had issues with running this type of setup.

[StandardProspect]

I believe its called a blow through MAF setup. It allows you to not have to recirculate the BOV as stated

[Chris28]

It's great for venting atmospherically, as well as for allowing no pre-turbo intake.

The downside that I see is if you have enough blow-by and/or your turbo's seals are shot the maf may be damaged by the oil that is coming through the charge piping. The oil would have to get through the IC first, but it's possible.

I run a suck through setup but I've contemplated going to blow through. I don't know if what I said about the oil is legitimate, it's just what I thought of haha.

[240sxka-t]

it makes sense on the placement because its measuring the actual air going into the engine after its been charged. i think ive read that the stock MAF is good up to like 300hp. i had it on my ka-t and never had any issues

[Chingon]

I was gonna write this whole paragraph on the effects of laminar vs turbulent flow in a MAF but 'tis a turbo, so there really is no point I think.

[IanS]

it makes sense on the placement because its measuring the actual air going into the engine after its been charged. i think ive read that the stock MAF is good up to like 300hp. i had it on my ka-t and never had any issues

Stock SR MAFS is good to 250ish.

I did blow through for a while, and after dealing with cleaning my MAFS every other week, and replacing it twice, I switched back. Unless you are running a brand new turbo, its not worth it. The combination of heat and oil vapor tends to destroy them pretty quickly.

[slow40]

plus if you have a leaky coupler or a leak somewhere in the piping, with a blow thru your car will run fine, with a suck thru it will run harsh or not at all.

[Justin35ll]

I always thought about if that would work or not... I guess it does and that's pretty cool. May think about doing it when I do my turbo setup, but then again is it really worth it? I'll have to look into it

[Chris28]

Stick to suck-through for the reasons Ian mentioned. Unless you had a catch can somewhere in your charge piping and a crazy ridiculous ice cold intercooler, you are going to foul your MAFS more frequently than normal. If you have a z32 unit, that gets expensive real quick.

[moulton712]

blow through, it's the new hotness

[a_ahmed]

This may be a stupid question but I always believed (internet hearsay) as some have already stated 'does anything go wrong if you relocate it'.

I actually have an NA KA and I was thinking of doing this and running a shorter ram with a 3" filter.

Ive had the run of the mill ebay intake injen knock off for quite some time... and i even got an injen cai for a while. I didnt notice too much power increase if not decrease from running the CAI (butt dyno).

I was thinking to myself... 1) so many pipe bends... doesnt air not like so many bends? Bad for performance anyways? --> hence shortening - better? 2) the run of the mills intakes aaaalll cross the radiator.... the aluminum air intake pipe itself is BURNING hot from the heat from the radiator... pretty much defeating any CAI or what have you...

So this leads me to... is this a good idea, since i have a tiny bralleauto racing battery and will be relocating to inside the car anyways.... that will leave the old battery spot open for a short ram of sorts right there away from the radiator... and the maf just being there. Good idea? Bad idea? Id like to know.... NA KA...

[Second Shadow]

on an NA engine it should work fine, technically your not even changing it's effective position.

[a_ahmed]

I suppose I shouldn't worry too much then? Just get some good shielded wiring? Shouldn't then be any kind of voltage drop or something like that right? Just wanted to hear some people's thoughts on this. I figured all these ebay aluminum intake kits and even the cold air intake is just a big mess of piping bends, extra weight.. and still stupidly running across the hot rad.... rendering any 'cold air intake' futile... being so frickin hot to the touch hah...

[240s-sex]

as far as i know. no tuning would be needed. all the MAF cares is that it sees air moving through it. the pressure fro boost wont hurt it at all. this will also let you run any kind of atmospherical BOV without worrying of dieing at idle

thanks guys got the info i was llookin for, im going to look into some type of catch can set up in the ic or maybe just some kind of protection on the maf

[IanS]

This may be a stupid question but I always believed (internet hearsay) as some have already stated 'does anything go wrong if you relocate it'.

I actually have an NA KA and I was thinking of doing this and running a shorter ram with a 3" filter.

Ive had the run of the mill ebay intake injen knock off for quite some time... and i even got an injen cai for a while. I didnt notice too much power increase if not decrease from running the CAI (butt dyno).

I was thinking to myself... 1) so many pipe bends... doesnt air not like so many bends? Bad for performance anyways? --> hence shortening - better? 2) the run of the mills intakes aaaalll cross the radiator.... the aluminum air intake pipe itself is BURNING hot from the heat from the radiator... pretty much defeating any CAI or what have you...

So this leads me to... is this a good idea, since i have a tiny bralleauto racing battery and will be relocating to inside the car anyways.... that will leave the old battery spot open for a short ram of sorts right there away from the radiator... and the maf just being there. Good idea? Bad idea? Id like to know.... NA KA...

This guy was on the verge of answering your question preemptively.

I was gonna write this whole paragraph on the effects of laminar vs turbulent flow in a MAF but 'tis a turbo, so there really is no point I think.

Think about it like this. Laminar flow is when a fluid/gas is flowing in a smooth, uninterrupted way.

With the factory intake, the air has time to smooth out after being disturbed by the filter. This laminar airflow helps to feed more air into the intake plenum. This is why generally speaking OEM cars have a longer intake. A quality aftermarket intake will open the pipe up, and smooth any bends.

With a short ram intake there is less time for airflow to smooth out, leading to turbulence at the throttle body, which decreases the actual volume of air entering the intake.

There is also a second problem, again dealing with turbulence. Every time you open or close the throttle you upset the air flowing through the intake. The longer pipe helps to isolate the MAFS from these disruptions. Lifting throttle with a very short pipe can cause air to back up past the MAFS, this leads to stuttering, and stalling. This is a common problem among the focus crowd, and Ive felt it first hand, and it takes exceptional tuning to eliminate.

That being said, Ive never tried running a short ram on an S chassis. In my experience the reason short rams have gained popularity has more to do with sound, than actual power production.

[Bumnah]

On a stock KA, I think it's silly to put in anything other than a drop in K&N air filter. The power gains with any sort of aftermarket intake is so negligible, it's pointless.

As for the location of the MAF, leave it near it's stock location. Make sure you recirculate your BOV, and make sure you have the "T" on the valve cover plumbed to the intake. Your SR will thank you.

If you have a redtop SR, make sure you have a catch can.

[240s-sex]

On a stock KA, I think it's silly to put in anything other than a drop in K&N air filter. The power gains with any sort of aftermarket intake is so negligible, it's pointless.

As for the location of the MAF, leave it near it's stock location. Make sure you recirculate your BOV, and make sure you have the "T" on the valve cover plumbed to the intake. Your SR will thank you.

If you have a redtop SR, make sure you have a catch can.

well i was planning on running a filter on the pcv t from one side then a catch can on the other...not sure where ppl plumb the vacuum 2 tho pretty cheap but affective for keepin my ic piping clean...er

[Kaleo55]

Here's my blow-thru system, maf is located just below the IC hot pipe pan, before the IC. So far works pretty good...