How about something like Jason's manifold:

https://www.miataturbo.net/attachmen...1&d=1229475458

Easy to build. Looks AC compatible.

Seems to me it would be easier/cheaper to fab up a new mounting bracket for the AC. Hang it up high, over the inlet elbow. Might look like crap, but you should have room.

Edit: I really like that manifold!

Yeah what if you just cut and rotated the flange on your current manifold? Would that give you enough clearance? Eventually the DP could hit the block. But maybe you could extend your runners a bit in the horizontal plane.

Then again, if your compressor housing is 'big' like mine you may not have much room for rotation/translation before you hit the driver's side frame rail. Judging by your pictures it looks like you have some room, at least a lot more than I have. What turbo is that anyway, 2860?

buy an LS1.

He has a 2871 and there is no room for rotation.

It's a 2871 and as is the outlet is very close to the sub frame. Tim's design above not only puts the turbo at an angle but it's also much farther back.

I'm thinking my best bet would be to buy that S4 mani from Begi and have Wayne make me a better dp then they offer. Then I could sell my current stuff to recoup some money. Unless Wayne has something better up his sleeve.
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imo my ebay shit clears AC and PS :P

Attachment 196973

I don't know what the best solution for you is, but I sure like this manifold. Looks like it would flow well. The better the flow the more hp per lb of boost.
It might cost a pretty penny but performance and creature comfort usually does!

Jason who? Is that top mount or is it upside down. Would 3" dp work well with that?
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Jason as in JayL. That is how it sits on the car, its a top mount. Go check out his build thread for more pics. He runs a 3" downpipe and makes loads of power :)

And Hingstonwm, it wont cost him a pretty penny because i'm making it and i'm cheap!

OK 2871 then never mind what I said about modding your current manifold. Mine does not have much room to move either.

<- Goes and looks at Jay's build thread again. brb
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Attachment 196972

win. I had forgotten how nice that build is.

I'm going to go ahead and vouch for the awesomeness of Jason's manifold. The only thing that I don't like about it is the wastegate placement. Nothing a little vband action doesn't make easier though.

https://www.miataturbo.net/attachmen...9&d=1238476636


Yea, this is win and look at all the space for a glorious a/c compressor.
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The only challenge I think is finding a super tight radius 90* bend to come off of the turbine outlet.

http://secure.chassisshop.com/partdetail/C76-550/

or do it in a sch10 pipe.
http://vibrantperformance.com/catalo...roducts_id=530

http://vibrantperformance.com/catalo...oducts_id=1420

120* in case you want to get a little more crazy with it and make it an s curve
http://vibrantperformance.com/catalo...oducts_id=1407

too bad ETD doesn't make this anymore....



http://gallery.y8s.com/d/22195-2/manifold02.jpg

That is nice ^^ Spool data?
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I was just looking at those exact things from ATP but you beat me to it