Maf relocation with procharger P1SC?

[klep2024]

Alrite guys, this question is somewhat related to my meth injection questions in my other post.

My setup has the maf/iat located after the intercooler in the left side of the engine bay(fenderwell area) like most 99-04 procharger setups i've seen.

My question is, would it be a problem to relocate the maf/iat closer to the throttle body. The idea i have is to put it where the coupler is by the head unit. Basically swap the maf and the coupler. Do you think that would cause issues with tuning?

 

[Chris98vobra]

Putting your suck-through MAF in that spot almost always causes drivability and tuning issues. They don't handle the turbulence well at all. You want to change MAFs to the new 05+ style slotted MAF. These do much better. HPX makes a good one that I use.

Chris

 

[psychotuner]

back from the dead, but...

did you use the stock MAf in blow through ? People with the prochargers do it all the time!

if you were to get an 05+ maf sensor, would you need a whole new tune and injectors?

 

[01yellercobra]

back from the dead, but...

did you use the stock MAf in blow through ? People with the prochargers do it all the time!

if you were to get an 05+ maf sensor, would you need a whole new tune and injectors?

You will need a new tune for the 05+ MAF, but you can keep your current injectors. The Procharger is designed for a blow through set up. That's why you see them like that all the time.

 

[psychotuner]

Can one use a stock MAf and stock injectors with an FMU on like 5 psi ?

or

Can one use stock 24# injectors with an 05 slot maf and mafia ?

 

[LS1PUSSOUT]

Can one use a stock MAf and stock injectors with an FMU on like 5 psi ?

or

Can one use stock 24# injectors with an 05 slot maf and mafia ?

you dont ever want to use stock injectors with boost. it needs bigger injectors and a dyno tune. else youll be risking the motor

the 05+ maf shouldnt need a mafia, but with a tune it can work well with 24# injectors.

 

[klep2024]

Glad my question is being informative for others :thumbsup:
Whats the main difference between the 05+ mafs and 99-04 mafs anyway?

BTW i solved my prob thanks to chris and flowgoode...ordered lightning iat and relocation pigtail from tousley today!

 

[psychotuner]

what about 05+ slot style maf with no tune for now. the 05's have 24# injectors,right? So does my Cobra, so the maf should work well with no problems

 

[Chris98vobra]

what about 05+ slot style maf with no tune for now. the 05's have 24# injectors,right? So does my Cobra, so the maf should work well with no problems

The air flow is different from an 05 and your car. A MAF curve is adjusted to air flow curve. It might be OK in some areas but you should get it checked, esp at WOT. Ifyou have a blower it would be 100% risky.

 

[01yellercobra]

Glad my question is being informative for others :thumbsup:
Whats the main difference between the 05+ mafs and 99-04 mafs anyway?

The 99-04 MAF is called a tonsil style. And the 05+ is called a slot style. I think it has to do with the opening for where the air flow is read. I talked to a tuner about the 05+ and he knew a guy running that MAF with the bypass and meth really close and the car ran with no problems. He put one in a turboed 66 coupe and said it was a dream to tune. You will need a pigtail to adapt it to the 99-04 wiring harness.