This has probably been "touched on" in previous threads, but never really discussed. I have a couple questions in regards to those of us who love our shiny sparkly intakes.

Can we just buy a cold side pipe with a MAF relocation to correct the horrible fuel trims without having to tune for it? I know these have been made for those who run BOV's but I want to keep the stock BPV. I would imagine you just wouldnt use the BPV block off plate, but still run the MAF block off plate for your intake.

Secondly, lets say you wanted to get custom tuned for your intake, would it help at all in regards to power/fuel trims to relocate the MAF to the cold side pipe anyways, or should you just leave the MAF where it is, and forget about the relocation? I would guess in this case, that the relocation would ease the frustration associated with tuning intakes.

Anybody care to ellaborate or help me out in these questions?

 

The car won't drive with the maf relocated untuned

ask me how I know lol

 

The sensor needs to be calibrated and the car NEEDS to be tuned.

 

doesn't the IAT1 reading come from the MAF? hence the post turbo location of the maf needing to be tuned for?

 

Never really thought about IAT1 readings. Okay, so you have to be tuned for it. I guess there would be no iat1 reading anymore, just 2 iat2 readings. Sucks, but for those who cant read iat2, only iat1, this could help.

Back to my second question, is it easier to tune with the maf on the cold side, rather than on the intake itself? I know people are having trouble dialing in their intakes, and on some even when they are dialed in they lose some power because of it.

Regardless, what is easier and yields more consistent fuel trims, and power, intake maf, or cold side maf?

 

Stock

 

I asked Term2 about it and from what I remember it didnt fix it...

 

Yup iat1 and iat2 will be identical now when you relocate the maf since both of the sensors will be close to each other.
I haven't had any problems making maf adjustments with the maf relocated, you're doing the same thing no matter where the maf is. Unless of course you have a boost leak near the intercooler and the maf is in the stock location then you will have some irregularities.
Relocating the maf isn't really done for power gains, the biggest reason people do it is because you can vent the bov without issues. Another reason is when your turbo has a 4" inlet the maf readings will be extremly skewed in a 4" pipe, so you relocate it the ic pipe which has a similar diameter to the stock intake.

 

basically this is being done so everyone can run their noise makers!

 

x2 i got my new updated tune today. NO CELS boosting 20psi+ cars running alot better. its the 2nd updated tune. few more and then car will run like stock lol

 

So basically this will do nothing. I just figure that since intakes cause maf issues because of uneven/turbulent flow, that relocating the maf to the cold side pipe would make it easier to dial in maf readings because of tube diameter and the fact that air being forced across the maf is alot easier to measure and dial in than air being sucked across the maf which the intake location currently does.

 

it will do something if your looking for high boost. i dont trust the bpv at anything over 24psi although some guys say that they are holding. i decided to play it safe at get an atmospheric bov. i got the quietest of the bunch though by getting the tial q.

realistically you need a good tuner to dial the whole system in aswell since the sensor needs to be calibrated for the tubing size change and such.

 

You're thinking that making maf adjustments is some extremely hard process, its not, if you can use hptuners you can easily make the adjustments no matter where the maf is located.

Anyone who can use a spreadsheet and can copy and paste can do this.
Read BYT's tuning guide all the answers are there, even though he doesn't talk about a relocated maf, the same procedure applies to it.

 

your right but not everyone can do it was the point lol. i wouldnt reccomend telling anyone thats never done this sort of stuff hey open up a spread sheet and follow this.

 

The guide is there so everyone can do it, everyone starts off as a clueless noob at one point, that's what guides are for.