Suggestions wanted :)

[b00st3d4g63]

Well I'm trying to decide what to do. I have a borg warner s256 with a hot side set up for an external wastegate. My problem is I can't get the o2 housing to quit leaking. I have used an evo3 gasket and a bullseye gasket and neither one will seal it properly. Bolts are torqued down accordingly. I think it's not sealing because of how the hotsides holes are. Also when I use an evo3 gakset the holes don't really line up so you have to use the bullseye gasket. Here is a pic.

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As you can see the hole where the flapper would be is weird and comes to a point instead of being round and thats where its leaking. It never really mattered before but now I am trying to run the wastegate off the o2 housing because I will be using an fp manifold. Before I was using a Hafe manifold so the wastegate was off runner #1 so the o2 housing didn't matter. But I don't like the look of the wastegate being there so I was wondering if anyone had any suggestions. I have been thinking about not doing the wastegate off the o2 housing and just buying an internal wastegate hot side for the turbo. They have a 38mm hole and according to bullseye control boost very well. I don't know though I can't make up my mind. Does any one else have any problems with their o2 housings not sealing due to their hot side like mine? Your thoughts?

 

[doubleclutch99]

Get a hold of bullseye and see what they would charge you to mill the hot side enough to tru it up so it will seal. speak to Dave Hall he's the owner and a personal friend. he'll help you out that way you dont have to change your set up and he will have you back out boosting in no time. just a thought

 

[b00st3d4g63]

That would be nice. I talked to him not too long ago about changing to an internal wastegate. I will have to give him a call Monday and see what he can do. That would be nice if he could fix it for me it makes me mad though that it will not seal. Also I broke a bolt off from the manifold. It has been together for about 2 months and I used brand new arp bolts and one broke off in the turbo when I took it off. So I would have to get that fixed too.