The WTF is this thread (FMIII)
12-20-2007, 09:02 PM
#1
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The WTF is this thread (FMIII)
Please help me identify these features of the FMIII manifold
A I assume are standoffs for a heatshield?
B Looks like a threaded plug on the bottom side of the manifold. Looks too small for a EGO probe and too large for an EGT probe.
C The EWG flange gasket is bad. Pick up a new one or have the surfaces milled uber flat?
D There is a flare in the flange here. Should I have the raised section smoothed out to improve flow? Or leave it as is. It looks like it should be cleaned up, but I don't want to sacrifice strength if it's needed. Close up pic below.
A I assume are standoffs for a heatshield?
B Looks like a threaded plug on the bottom side of the manifold. Looks too small for a EGO probe and too large for an EGT probe.
D There is a flare in the flange here. Should I have the raised section smoothed out to improve flow? Or leave it as is. It looks like it should be cleaned up, but I don't want to sacrifice strength if it's needed. Close up pic below.
This is the top of the manifold, looking down
E is a threaded hole, looks like it's the right size for an EGT probe, but the hole does not go all the way through into the manifold. Does a bracket or something mount here? Or do you drill it through for your EGT probe?
That's all I have for now. Thx
That's all I have for now. Thx
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12-20-2007, 10:06 PM
#4
A- Looks like standoffs for a heatshield
E- Looks like another threaded hole to bolt down the heatshield
B- Pretty sure that's possibly for EGR even if your car didn't come that way from the factory. Atleast that's what it's for on the other manifolds.
C- I use gaskets but don't plan to with the new upcoming build, either way will be fine i bet.
D- I don't see any issues with you cleaning up that raised area to improve flow
For the EGT probe, i would drill and tap a hole in the #4 runner in the middle, between the turbo and head.
E- Looks like another threaded hole to bolt down the heatshield
B- Pretty sure that's possibly for EGR even if your car didn't come that way from the factory. Atleast that's what it's for on the other manifolds.
C- I use gaskets but don't plan to with the new upcoming build, either way will be fine i bet.
D- I don't see any issues with you cleaning up that raised area to improve flow
For the EGT probe, i would drill and tap a hole in the #4 runner in the middle, between the turbo and head.
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12-20-2007, 10:32 PM
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Yup, B is an EGR port. Say, why would a 1.6 manifold have an EGR? Because this "1.6 FMIII" manifold is for a 1.8. 
********.
How can I figure out if it's a 1.6 or 1.8 downpipe?
********. How can I figure out if it's a 1.6 or 1.8 downpipe?
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12-20-2007, 10:51 PM
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D: what?
E: Right location, looks like the right size and thread, but it doesn't go through into the manifold. It stops, like it would be a place to bolt a bracket or heat shield to.
And B is an EGR. It didn't occur to me b/c I was thinking 1.6
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12-20-2007, 11:21 PM
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Undecided. I have a 1.8 in the garage and I was planning on a BEGi S5. Economically, it makes sense to keep this. Spiritually, I'm pretty f'n fed up with FM. The joo in me wanted to give them another chance, and well...
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12-21-2007, 12:11 AM
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You don't want it. The dp does not line up with the ewg. What I think is going on here is they sent me a 1.8 manifold and a 1.6 downpipe 
It would have been useful if it was all 1.8, but since it doesn't even bolt together it's worthless. I was angry for a minute, but I'm so beyond being aggravated at FM at this point
It would have been useful if it was all 1.8, but since it doesn't even bolt together it's worthless. I was angry for a minute, but I'm so beyond being aggravated at FM at this point
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12-21-2007, 12:46 AM
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Sav, recognize the turbo?
A (possible) option: Cut the EWG tube off where it meets the downpipe, and weld the downpipe up. Vent the EWG under the car, maybe through a lawnmower muffler ?
A (possible) option: Cut the EWG tube off where it meets the downpipe, and weld the downpipe up. Vent the EWG under the car, maybe through a lawnmower muffler
?
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