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Old 04-17-2012, 01:19 AM   #51
burke_024
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omg thats what i was gonna do in the first place but i was told to go blow thru so idk tomorrow i will try that too i guess
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Old 04-17-2012, 01:21 AM   #52
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"and im sorry tom but im a fabricator for a livin so the piping is no big deal " sorry if that sounded dickish ,my bad btw
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Old 04-17-2012, 06:45 AM   #53
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omg thats what i was gonna do in the first place but i was told to go blow thru so idk tomorrow i will try that too i guess
You can run either setup but the ECU needs to tuned for it. But as of now I'm assuming your tune is setup for the suck through MAF setup. The only thing you need to fix there is to relocate the IAT after the intercooler; so the ECU sees the actual temperature of the air going into the motor. You won't need a retune after that.

If your planning on redoing the piping then I would take that time to relocate the MAF after the intercooler to have a blow through setup. Then you won't have to relocate the IAT but you will need a new tune.

Both setups work; its just personal preference. My ST had a blow through setup in a 3 inch MAF housing. My Merkur, on the other hand, has a suck through setup from the factory.
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Old 04-17-2012, 01:38 PM   #54
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its wierd cuz other than the iac the car runs waaayyy better ,ive since se t the rpm at 1000 even and it really does run better the wideband i ordered had a bad sensor so im waiting on a replacement then i will be able to see my a/f s
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Old 04-17-2012, 03:30 PM   #55
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Its more then a personal preference , blow through has better throttle response , better driveability , no need to rewire and move your IAT sensor , everything about it is better , anyone not selling a blowthrough kit these days then its about money in there pocket and not that they want a good quality kit

Hay if you can Fab. then thats the way to go do it wont hurt my feelings any

You MUST tune for the change in the MAF size and location

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Old 04-17-2012, 03:31 PM   #56
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Tom, what is a blow through MAF? sorry, I've seen it mentioned all the time but never actually knew what it was. Does it just measure airflow the other way or what?
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Old 04-17-2012, 04:06 PM   #57
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Tom, what is a blow through MAF? sorry, I've seen it mentioned all the time but never actually knew what it was. Does it just measure airflow the other way or what?
Blow through refers to the MAF being located after the turbo as opposed to the MAF being located on the intake side of the turbo.

And Tom makes very valid points to the advantages of a blow through setup. I never once thought about going suck through with my setup on my ST when it was boosted.
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Old 04-17-2012, 05:11 PM   #58
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Correct ,
Suckthrough = MAF on the suction side of the turbo between filter and turbo

Blowthrough = MAF between the intercooler and turbo (pressure side)

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Old 04-18-2012, 12:39 AM   #59
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so again im back too what yaer and model do i use the iat sensor from , obviously one thats not in the maf i have seen em just cant place the year ?
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Old 04-18-2012, 10:00 AM   #60
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If you changed to blowthrough (which you should) then the IAT in the maf blowthrough is all thats needed

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