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Underbody braces, turbos and more!

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PostPosted: Wed Aug 31, 2011 8:09 pm 
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Location: Puerto Rico
im making a g13b exhaust manifold. what should be a good size for the runners? i was guessing 1.75inches in a 4-1 desing any suggestions

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PostPosted: Wed Aug 31, 2011 10:32 pm 
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paposwinger wrote:
im making a g13b exhaust manifold. what should be a good size for the runners? i was guessing 1.75inches in a 4-1 desing any suggestions


hi my friend if your making one for me too ? if you can do a better job than suzukiRD (horrible job and over price) . its for g13bb

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PostPosted: Thu Sep 01, 2011 5:56 am 
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yes it is for the g13bb. i will have to make mine first and test it a bunch of times before try to sell it to anyone. i can asure it will be cheaper than the one suzukird sells.

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suzuki forsa 1985 (SA310) with g13bb swap>>SOLD!
suzuki samurai 1989
webber 32/36
header with 2" pipe
2" lift in front
30" tires
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PostPosted: Thu Sep 01, 2011 11:59 am 
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Location: Holden Alberta
It is best to stick with runners the same size as the exhaust port its self. (so measure the port and buy tubing that size) Runners should stay the same size and length (ideally) until you merge into a secondary collector pipe. The reason for this it to maintain gas velocity.

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PostPosted: Thu Sep 01, 2011 12:37 pm 
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Location: Puerto Rico
tubing is going to be 1.75inches each and as equal lenght as possible to a 4to1 collector

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suzuki forsa 1985 (SA310) with g13bb swap>>SOLD!
suzuki samurai 1989
webber 32/36
header with 2" pipe
2" lift in front
30" tires
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PostPosted: Thu Sep 01, 2011 5:31 pm 
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Suzukird prices are better than majority of the others

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PostPosted: Thu Sep 01, 2011 9:20 pm 
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and the quality of their headers reflects the low price.

you get what you pay for.

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PostPosted: Fri Sep 02, 2011 11:13 am 
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t3 ragtop wrote:
and the quality of their headers reflects the low price.

you get what you pay for.


:lol: understood.....would you consider suzitech's header worth the money?

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PostPosted: Fri Sep 02, 2011 2:29 pm 
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i have no direct experience with that pipe. suzukird, suzuki cultus, and the stock cast exhaust manifold is all i have used. the cultus header tuned the best. the engine really liked that pipe. :wink:

i was seriously unimpressed by a lot of things at suzukird along with the header. that's just my opinion so you can take that for what it's worth. there are several threads on teamswift with input from a bunch of people. you could read those posts.

also, there are threads about headers for the twincam as the main topic that cover the subject thoroughly.

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My YouTube Channel
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SAAB Sonett II


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