40LandCruising
Anderson
I just need to stock up on Jettas, they fit like a gloveThat's a tight fit at the ceiling. Have you considered racing vintage English iron? Much closer to the floor![]()
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I just need to stock up on Jettas, they fit like a gloveThat's a tight fit at the ceiling. Have you considered racing vintage English iron? Much closer to the floor![]()
Anyone here found a good way to block the exhaust gas from circulating through the back of a 1FZ-FE head?
I know i can disable the EGR by looping the vacuum line, and i can remove it and make a block off plate for the intake and the intake side of the head. But there will still be exhaust passing through the back of the head.
So my thoughts are get aftermarket manifolds/mufflers that don't have an EGR provision, attempt to weld up the passage in the factory cast manifold, or get someone to tig the hole in the head up, but unsure if that'll put too much heat in a concentrated area of the head.
View attachment 3863888
I just used the "keychain" block off plate that Shetsend used to sell. I think Delta may have picked them up.Anyone here found a good way to block the exhaust gas from circulating through the back of a 1FZ-FE head?
I know i can disable the EGR by looping the vacuum line, and i can remove it and make a block off plate for the intake and the intake side of the head. But there will still be exhaust passing through the back of the head.
So my thoughts are get aftermarket manifolds/mufflers that don't have an EGR provision, attempt to weld up the passage in the factory cast manifold, or get someone to tig the hole in the head up, but unsure if that'll put too much heat in a concentrated area of the head.
View attachment 3863888
Isn't that for blocking off the port on the other side of the head where the tube that goes to the EGR valve attaches?I just used the "keychain" block off plate that Shetsend used to sell. I think Delta may have picked them up.
My buddy brought up the point at work that with the other side of the head blocked off where the exhaust exits, while gas can still travel into the head, it isn't circulating like normal so it would be a greatly reduced rate. So even without blocking off this side should improve it.If it were me, I'd machine a plug out of a similar aluminum alloy and drive it in there, then peen the edges. You could weld the plug in there too, but I'd be wary of welding on it for fear of cracking.
Could counter-bore a section out so the flange of the plug sits behind the exhaust manifold, which would hold it in place and prevent it from sinking into the head too.
I'm a little confused what you mean by space between the head and manifold when tightened, shouldn't the gasketYou can weld the cast manifold pretty easily. You're gonna have to spend some time flattening it afterwards though with a belt sander or a surface plate of sorts, but it'll work. Preheat before (look up how much, probably around 500*) and let it cool real slow by wrapping it up tight, and it should be fine. Ive welded a number of cast manifolds for my engine like that and I havent had any cracking.
But also, because of the gasket, there will be some space between the manifold and the head when tightened down. Just be aware of that.
The part that you're proposing to weld up in the manifold will be flat. That part isn't covered by the gasket, so there will be a narrow space that exhaust gasses can pass between the weld and the head.I'm a little confused what you mean by space between the head and manifold when tightened, shouldn't the gasket
Be occupying the same amount of space as usual?