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

gsl-se exhaust in a 12a??

Old May 13, 2006 | 06:06 PM
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gsl-se exhaust in a 12a??

does any one know if the racing beat gsl-se manifold would fit an 84 12a??
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Old May 13, 2006 | 06:09 PM
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the se motor is a 13b the other as you said is a 12a...so the answer is no not with out modding it

cheers PaTricK
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Old May 13, 2006 | 06:09 PM
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i have a chance to buy a full racing beat gsl-se exhaust system but i dont know if it would bolt right in my 84 12a stock fb??
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Old May 13, 2006 | 06:10 PM
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if you ovalize the holes you can make it work, i dont know about bolting up to the rest of the exaust system though.
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Old May 13, 2006 | 06:12 PM
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do you know, if i buy a 12a manifold alone would it bolt in to the gsl se RB exhaust??
i am just trying to avoid paying $900 dollars for a new exhaust system
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Old May 13, 2006 | 06:17 PM
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of you oval out the wholes in the 13b header it will bolt up the rest of the exhaust should mount up of be very close like an inch or 2 off (i dont think it would be) but if it is hangers are cheep at the exhaust shop and they will be alot cheeper then being a 12a header

buy the set up take it to the exhaust shop after you oval the holes and tell them to hang it for you if it wont bolt up..they shouldint charge more then 50 bucks (by me it would be like 20 bucks)
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Old May 13, 2006 | 06:19 PM
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ovalization....bolts may line up but what about the exhaust ports to the header. think about it.
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Old May 13, 2006 | 06:25 PM
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That is some ghettofabulous stuff. I wouldn't do it. Worst things worst trade you 13B header for a 12A one.
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Old May 13, 2006 | 06:28 PM
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Originally Posted by wackyracer
ovalization....bolts may line up but what about the exhaust ports to the header. think about it.

this is right lol wasint thinking .. you have to do a cut a gap down the middel of the flange to get it to fit right to line the ports with the tubes sorry for spreding bad info

cheers PaTricK
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Old May 13, 2006 | 06:31 PM
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From: Socal
Originally Posted by 81gsl12a
this is right lol wasint thinking .. you have to do a cut a gap down the middel of the flange to get it to fit right to line the ports with the tubes sorry for spreding bad info

cheers PaTricK

np
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Old May 13, 2006 | 07:03 PM
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Not only will you have to cut a gap, you will have to cut the forward pipe and shorten it too.
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Old May 13, 2006 | 07:50 PM
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Originally Posted by wackyracer
ovalization....bolts may line up but what about the exhaust ports to the header. think about it.
ovalization would work, you would lose some performance, but i think it would do him temporarly until he gets a 12a header. i have seen and heard of people doing it, the differnce is very minimal. put a 13b header and a 12a one next to each other and you will see what i mean. ghetto fabulous..... yes, but it will work.
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Old May 13, 2006 | 07:51 PM
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how about i just buy a 12a header,will it bold up to that exhaust with out pushing the header back or foward?
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Old May 13, 2006 | 07:54 PM
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if the headers are the same length and same outlet, than yes.
if you buy that complete system im sure someone will trade you a 13b for a 12aa header in the for sale section.
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Old May 14, 2006 | 12:46 AM
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From: Socal
Originally Posted by Midwest 7's
.
.
lose some performance, but i think it would do him temporarly until he gets a 12a header.
.
.
i have seen and heard of people doing it, the differnce is very minimal. put a 13b header and a 12a one next to each other and you will see what i mean. ghetto fabulous..... yes, but it will work.

What a waste of time. Just cut the flange. You're making life too complicated.
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Old May 14, 2006 | 01:20 AM
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yeah! too too complicated!
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Old May 14, 2006 | 05:43 PM
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well this is why we have the rx7 forum for,to figure out stuppid stuff like this.
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