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Project: MAF removal on Greddy TT

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Old Feb 15, 2008 | 11:04 PM
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Lightbulb Project: MAF removal on Greddy TT

One of the things that I have wanted to do ever since I switched to FCon was get rid of the Mass Air Flow housing completely on my Greddy kit. The FCon does not use the signal from the airflow meter at all, it is just there to connect the piping together. This really cleans up the engine bay, and does remove a significant restriction out of the intake tract.

I ordered a 3" allum U-bend, a 2.75"-3" coupler, and a new BOV flange and got to work....

Copying the existing pipe was not to difficult, but there are a few things to take note of if you are going to try this yourself. The 3" tubing is not the same size as the Greddy piping. The Greddy is 80mm and I could not find anywhere that sold metric tubing diameters. So to get around this, I hacked up the MAF adapter and welded that to the new pipe. I moved the BOV into the engine bay, up from the fender well... mostly for looks, but now I can adjust it with out getting in the fender well to do it. There was not enough room to put a bead roll on the other end of the pipe, so we just welded a hump on the very edge of it to prevent the coupler from popping off.

I think it turned out pretty well! Took about 6 hours start to finish, but well worth it IMHO.










Last edited by MADScientist; Feb 15, 2008 at 11:09 PM.
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Old Feb 15, 2008 | 11:16 PM
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nice one... i think ill take care of that this year. funny... first Z with the FCON, probably the last Z to physically remove the MAF.
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Old Feb 15, 2008 | 11:18 PM
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^^^^
it is good not to be first on everything...
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Old Feb 15, 2008 | 11:38 PM
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That pipe wont hold high boost....
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Old Feb 16, 2008 | 01:18 AM
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I've been wondering about this myself, will the stock ECU freak out with any codes or anything with removing the MAF? I don't care other than emissions reasons
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Old Feb 16, 2008 | 01:30 AM
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i drove around without mine plugged in for a while, i dont remember anything happening. the fcon has a voltage output that is emulating the MAF the entire time anyway. even if you leave your MAF in there, its signal is not used for anything.. its already been bypassed.
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Old Feb 16, 2008 | 01:31 AM
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oh ok, cool
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Old Feb 16, 2008 | 05:23 AM
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Originally Posted by eagletanggreen
That pipe wont hold high boost....
Hater!!! It better... I will be scratching my a$$ for a while if it doesn't. lol
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Old Feb 16, 2008 | 05:25 AM
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Originally Posted by phunk
i drove around without mine plugged in for a while, i dont remember anything happening. the fcon has a voltage output that is emulating the MAF the entire time anyway. even if you leave your MAF in there, its signal is not used for anything.. its already been bypassed.
What he said

Oh, and I forgot to mention that the 70mm outlet from the intercooler is close enough in size that the 2.75"-3" transition is a nice snug fit on the Greddy piping right there.

Last edited by MADScientist; Feb 16, 2008 at 05:28 AM.
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Old Feb 16, 2008 | 05:46 AM
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Nice. What are you going to do with your MAF housing. I am in need of the black plastic housing and the rubber o ring. Let me know if you want to get rid of it.
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Old Feb 16, 2008 | 06:05 AM
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Originally Posted by jkenefic
Hater!!! It better... I will be scratching my a$$ for a while if it doesn't. lol

Yeah! Why dont you make a nice polished pipe like yours.. You cheap skate! Call me when you get a chance.

A little off topic, but Phunk your pumps have close to 3K on my car and some dyno, and street spirited runs and no problems!
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Old Feb 16, 2008 | 06:26 AM
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^^^

You can have one with your new motor!
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Old Feb 16, 2008 | 06:48 AM
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I had Sharif do the same mod on my car (PE kit) - we found a new home for my latest mod where the stock MAF used to be - new MAF delete pipe is currently out for powder coating, then back onto the dyno...

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Old Feb 16, 2008 | 06:52 AM
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Originally Posted by Philthy
I had Sharif do the same mod on my car (PE kit) - we found a new home for my latest mod where the stock MAF used to be - new MAF delete pipe is currently out for powder coating, then back onto the dyno...

Uh Oh!!
Looks like Julian V Philthy (and lawyer) part 2 comming soon!!!
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Old Feb 16, 2008 | 07:07 AM
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Originally Posted by Julian@MRC
Uh Oh!!
Looks like Julian V Philthy (and lawyer) part 2 comming soon!!!
Ira (Philthy's Lawyer) Vette is @ East Coast Superchargers - he's stepping it up a bit too...

Can't wait for our rematch, this time I'll be running the slicks/skinnies and not street tires
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Old Feb 16, 2008 | 07:11 AM
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Originally Posted by Philthy
Ira (Philthy's Lawyer) Vette is @ East Coast Superchargers - he's stepping it up a bit too...

Can't wait for our rematch, this time I'll be running the slicks/skinnies and not street tires
Cool..
Im pulling my Maf also, the nice thing on the APS kit is that it is one solid pipe.All we need to do is plug the hole.
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Old Feb 16, 2008 | 07:38 AM
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^^^ Must be nice! Thanks Greddy.... HAHA
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Old Feb 16, 2008 | 11:24 AM
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Originally Posted by Julian@MRC
Uh Oh!!
Looks like Julian V Philthy (and lawyer) part 2 comming soon!!!
Hey, what comes out of those two little hoses guys?
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Old Feb 16, 2008 | 02:08 PM
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Thats pretty sweet that the Fcon gets rid of the MAF altogether. that stupid platsic piece breaks up the smooth lines of polished tubes

Last edited by str8dum1; Feb 16, 2008 at 02:10 PM.
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