Single Turbo RX-7's Questions about all aspects of single turbo setups.

short runner manifold

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Old 12-06-10, 12:45 PM
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short runner manifold

Dose anybody know of any companies selling a short runner manifold similar to the hks(fd3s) one for an fc3s. Im curious to find out how a short runner performs compared to a long runner manifold. I currently have a medium length runner manifold on my car which ill post a pic of below but im considering a short runner.
Old 12-06-10, 05:24 PM
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There isn't enough space to make a short runner on an FD without serious compromises to its flow. You would have to cheat the angle going into the flange. Basically giving the manifold an on-center turbine housing affect...
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Old 12-07-10, 12:13 AM
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i have an fc and here is a short runner for fd's that hks makes with their t04z kit. They used to sell them separately but no longer do so.

Old 12-07-10, 05:06 AM
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http://www.rx7store.net/product_p/hk...-95%20rx-7.htm
Old 12-07-10, 07:22 AM
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This is the manifold I'm using. Works well, neukin.com http://www.neukin.com/v/vspfiles/pho...dt4fc13b-2.jpg
Old 12-07-10, 09:44 AM
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Havent you heard!! Longer is better!


Have you checked with Sean @ Aspec? I am sure he has a jig for one and could make it up for you.
Old 12-07-10, 12:50 PM
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Originally Posted by sk8world
Havent you heard!! Longer is better!


Have you checked with Sean @ Aspec? I am sure he has a jig for one and could make it up for you.
What manifold are you running?


Aaronj- Were did you get that manifold? the neukin manifold is nice, its short, they come twinscroll, and theres a new twin scroll one forsale in the FS section for $350!
Old 12-07-10, 04:54 PM
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im looking for a short runner and from what ive read and the data ive seen i would have to stick my money with a dived short runner manifold.

The manifold pictured is currently on my car. Its made by Boostflow here in arizona.
Old 12-07-10, 07:57 PM
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Originally Posted by sk8world
Havent you heard!! Longer is better!


Have you checked with Sean @ Aspec? I am sure he has a jig for one and could make it up for you.
Ours are about 13" if memory serves, short runners are a bit hard to make on the FC due to the LIM overhang they tend to push the turbo further out.


~S~
Old 12-07-10, 10:22 PM
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Originally Posted by Zero R
Ours are about 13" if memory serves, short runners are a bit hard to make on the FC due to the LIM overhang they tend to push the turbo further out.


~S~
yuppers that is spot on im looking for the shortest one i can find but idk if i cant fit my t67 where i want. my current maifold may be jus what i need but who knows

neukin manifolds look pretty short but idk if it can fit my turbo plus i have 2 wastegates. in the end i may have to have friends help me make one.
Old 12-08-10, 08:16 AM
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Alex from neukin can build whatever you want. His divided manifold has the same runner length as the open. Its very short i can measure and let you know after lunch.
Old 12-08-10, 10:29 AM
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Originally Posted by sk8world
Havent you heard!! Longer is better!

HAHAHA thats what some believe
Old 12-08-10, 10:33 AM
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Originally Posted by AaronJ
yuppers that is spot on im looking for the shortest one i can find but idk if i cant fit my t67 where i want. my current maifold may be jus what i need but who knows

neukin manifolds look pretty short but idk if it can fit my turbo plus i have 2 wastegates. in the end i may have to have friends help me make one.
The only twin gate short runner we make is for the FD and I know it wont fit as it puts the turbo too close to the LIM, sorry for the crappy photo as it's all I currently have. It looks like what you have is for a FD I'd be surprised if it fits with that WG location.

~S~
Attached Thumbnails short runner manifold-stg.jpg  
Old 12-08-10, 02:13 PM
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no my manifold fits fine. its on my car now actually but im checking to see my options for a short runner manifold that fit my needs
Old 12-08-10, 02:53 PM
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Hmmm, I'm guessing the turbo sits further forward than the pic shows. Seems the rear WG would be a issue. Why the "need" for the short runner?

~S~
Old 12-08-10, 03:17 PM
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Get in touch with Elliot @ Turblown. He built my short twin gated manifold based on my needing the turbo to be further back in the bay than most setups due to the design of my V-mount.


Old 12-08-10, 04:08 PM
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Originally Posted by 20B10AE
Get in touch with Elliot @ Turblown. He built my short twin gated manifold based on my needing the turbo to be further back in the bay than most setups due to the design of my V-mount.
Elliot does good work but I'm betting those runners are roughly 13" +/- I am saying this simply because it is very similar to the design we use. I could be wrong though as I notice you're running a FD intake. My understanding is he is looking more along the line of 10" or less.

~S~

Last edited by Zero R; 12-08-10 at 04:11 PM.
Old 12-08-10, 04:41 PM
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hey zero here is another pic for you and another thing is im running smaller wate gates too. an im not stuck on the idea of a short runner but my vmount location is odd and im limited room space. I jus think the idea of a short runner would help me meet my goals and numbers. So i made this to see who has the shortest manifold for an fc. I also beleive short runner can make more hp depending on the sizing of the turbo.

http://www.scionlife.com/forums/show....php?p=3693632

Old 12-08-10, 06:09 PM
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Here is a photo of our short runner dual wastegate FC setup. Runners are 6".
Attached Thumbnails short runner manifold-100_5475.jpg  
Old 12-08-10, 11:18 PM
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Originally Posted by Turblown
Here is a photo of our short runner dual wastegate FC setup. Runners are 6".
How do you like that heat wrap/sheilding? "heat wrap/sheilding"
Old 12-10-10, 06:44 AM
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You guys should also mention what turbo you are going to use with it.

Not every turbo will fit the other components in the engine bay.

i have a medium lenght HKS style T4 divided manifold for my GT4088R and the (cold side)compressor housing does not clear the bodywork.
Old 12-10-10, 09:49 AM
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i'm running a hks t04r divided tubular manifold. runners are pretty short with a 62mm gt bb turbo on it. i like it alot so far

with that said, i love Neukin manifolds. my old drift car has one and i could not get it to break, hands down best manifold i used. i had major problems before with other tubular manifolds mainly Greddy.

i had actually planned on getting another Neukin setup but this HKS setup was too good to pass up.

like t2mike said, Neukin scientist can hook you up

Old 12-12-10, 05:27 AM
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kinda pointless to have a divided t4 flange manifold with a wg runner that isnt also divided...might as well run 2 wastegates
Old 12-12-10, 06:57 PM
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i would not say pointless but it would be better and cost alot more and be more complicated. ideally i would want to see the same car/turbo/boost with all three setups undivided, divided, and full divided to see the true difference it makes. unless someone has already done it
Old 12-13-10, 10:22 AM
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Why is it pointless? Guess the HKS engineers messed up too. Please teach me something.

Originally Posted by Gurew
kinda pointless to have a divided t4 flange manifold with a wg runner that isnt also divided...might as well run 2 wastegates


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