Ext. Wastegate on BEGi Manifold
#1
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Instead of having them weld a flange to the cast mani, can I just machine the bottom flat, and drill/tap it for the wastegate, so the wastegate sits directly against the manifold? I'm sure there's something wrong with this idea, so please enlighten me.
I don't like the idea of welding cast.
(None of this)
I don't like the idea of welding cast.
(None of this)
#4
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Welding cast is just fine. If you can source a older FM/Begi manifold you can drill and tap those.
Take a look at PatsMX5 manifold build: ZING! Welded properly and it will be just fine.
Also if you are looking to maybe switch your manifold, there is the HKS. Check out Gianic: ZING!
Older Begi/FM manifolds had thick areas that you could drill and tap: My FM3 is beefy as hell and works like a charm.
Take a look at PatsMX5 manifold build: ZING! Welded properly and it will be just fine.
Also if you are looking to maybe switch your manifold, there is the HKS. Check out Gianic: ZING!
Older Begi/FM manifolds had thick areas that you could drill and tap: My FM3 is beefy as hell and works like a charm.
![](https://sphotos.ak.fbcdn.net/hphotos-ak-ash2/hs108.ash2/38750_1567116176421_1190923717_31616403_4154992_n.jpg)
#7
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If the OP already has the manifold then there is no need to spend alot of cash on a new manifold and downpipe. It will be be cheaper and easier to just modify the one you already have. Plus the benefit of having a cast manifold on a daily driver. These things are built like tanks and will probably outlive the car.
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