1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Turbo mani please help

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Old Dec 11, 2007 | 08:08 PM
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From: eau claire
Turbo mani please help

trying to get ideas for this mani i am gonna make. i got a 12a flange some 2inch od pipe 13b flange. This is for a s4 mani on the 122a. just wanted to see some pics of this seemingly elusive mani Thanks guys. Parts are starting to arrive for the project
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Old Dec 11, 2007 | 09:10 PM
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Bore out the holes on an S4 turbo manifold and it should mount up. Or you could take your 12A flange and weld two pipes to it and weld those to the S4 manifold. I have seen both done before.

Eau Claire, Michigan????
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Old Dec 11, 2007 | 09:12 PM
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Someone here on the forum made/sold me an adapter manifold. It was basically a 12a exhaust flange welded 2 inches apart and angled upwards to a 13b exhaust flange. I think I got i for around 60 bucks shipped.

I'll try and dig up tomorrow morning and get you some pictures if you want
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Old Dec 11, 2007 | 09:51 PM
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From: philadelphia
Buy the 12A flange and pre bend pipes and weld them to fit where you desire. below is a link to ebay as an exaple from a 13b. No need for the waste gate pipe if you are using a turbo II with the pre build waste gate in it.





http://cgi.ebay.com/ebaymotors/13b-t...QQcmdZViewItem
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Old Dec 11, 2007 | 10:00 PM
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From: kalamazoo, mi
Originally Posted by DwArF
Someone here on the forum made/sold me an adapter manifold. It was basically a 12a exhaust flange welded 2 inches apart and angled upwards to a 13b exhaust flange. I think I got i for around 60 bucks shipped.

I'll try and dig up tomorrow morning and get you some pictures if you want
Exactly what i was talking about
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Old Dec 11, 2007 | 10:23 PM
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From: philadelphia
Check out this link for more accurate information on the set up.

http://www.turbofb.com/interchangefaq.htm
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Old Dec 11, 2007 | 10:32 PM
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From: Cleveland,OH
Originally Posted by 84GSLRX7
Buy the 12A flange and pre bend pipes and weld them to fit where you desire. below is a link to ebay as an exaple from a 13b. No need for the waste gate pipe if you are using a turbo II with the pre build waste gate in it.





http://cgi.ebay.com/ebaymotors/13b-t...QQcmdZViewItem
so now if i were to bore out these holes as said above it should fit a 12a right?
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Old Dec 11, 2007 | 10:38 PM
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From: philadelphia
Originally Posted by TheDriver216
so now if i were to bore out these holes as said above it should fit a 12a right?
I think you miss understood, The link is an example of the finish product. The flange to the engine can be purchase at racingbeat .com, a 12a flange wish need no modifications to it, and the pipes you can purchase from them as well.
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Old Dec 11, 2007 | 10:40 PM
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oops sorry for the misreading.. i get all excited and dislexic (sp) at times..
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Old Dec 11, 2007 | 11:24 PM
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From: kalamazoo, mi
on a stock 2nd gen turbo manifold, yes you can elongate the holes and it will bolt up to a 12A
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Old Dec 12, 2007 | 06:06 PM
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From: eau claire
you can tjust bolt up the stock s4 mani to the stock 12a block with the stock intake the turbo will hit the intake
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Old Dec 12, 2007 | 06:18 PM
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made by 61620b. one of many unfinished projects. hope it helps




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Old Dec 12, 2007 | 06:22 PM
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From: eau claire
gimmiew i am trying to make an adapter with a 12a and 13b flange
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Old Dec 12, 2007 | 08:41 PM
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From: kalamazoo, mi
61620b is a forum member on here?
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Old Dec 14, 2007 | 11:03 PM
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From: eau claire
http://www.aaroncake.net/rx-7/naturbo4.htm

This is from a 13b project but no the less in the right direction. I have heard i should try to angle the turbo up and forward a little. any reason why???

parts will arrive monday from mazdatrix and i will begin to fab something like this up!
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Old Dec 14, 2007 | 11:46 PM
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Originally Posted by wackyracer
made by 61620b. one of many unfinished projects. hope it helps





wacky building a turbo motor has hell frozen over. i though you where a NA guy?
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