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Old 10-23-2013, 11:39 AM   #1
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Turbo Manifold: Cast vs. Tubular

I am starting to piece together the parts for my t3/t4 turbo build on my 07 2.0. Most of what I find out there is only the cast iron manifold, but I have seen a few tubular equal length manifolds but I only see them with a cheaper turbo kit on ebay. I'd like to find a tubular manifold to get equal length runners or have one made if i have to. Does anyone have a tubular manifold or bought one of the cheap tubular manifolds off ebay? I'd like to know how it does before i spend the money on something. Also if anyone has had a cast manifold and a tubular one i'd like to know if you saw any kind of performance difference between the 2. Just trying to figure out if I should just get the cast manifold or try and find or make a tubular one.


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Old 10-23-2013, 12:08 PM   #2
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You really need to decide what kind of power you want and then go from there.
Its hard to select the right turbo, injectors, piping, exhaust, exhaust manifold if you have no idea what power you want to make.

There are plenty of kits out there offering a tubular or cast design, here are a few off the top of my head.

Focus-Power
Topspeed
Turbo Turtle
FSWERKS

Heres some links incase you have trouble finding Turtle or Tom

Turtle
new zetec turbo kit

Focus-Power
Focus-Power - DIY Turbo Kit Info

Topspeed and FSWERKS can easily be found with a google search.
Im sure there are many more options but thats all i have time for ATM
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Old 10-23-2013, 03:06 PM   #3
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I plan on using a T3/T4 turbo, hopefully around 20psi, planning on around 450HP give or take. It will still be probably another 8 to 10 months before I finish getting all the parts for the turbo kit and engine build I just couldn't find a tubular manifold anywhere. Topspeed makes one and it looks awesome really but its $1,000!!! I can get a cast log style for $150 and thats probably why no one really goes with the tubular manifold haha I messaged an ebay seller to see if he would be willing to sell just his tubular manifold by itself out of a kit just waiting to hear back, that might be another cheap option for a tubular manifold. Even though I will say the one on ebay looks much cheaper and the one at Topspeed looks like it would work the best. We might have a cheap alternative on ebay, but I seriously doubt it will work any better than a cast log manifold.

Thanks for the help though! I would probably would have never found the topspeed one if I didn't know it existed and its nice to know who is putting together working kits for the focus. I am running the duratec though not a zetec so that limits my options alittle too.
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Old 10-23-2013, 06:54 PM   #4
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Well I did my own turbo kit too and I went with a cast manifold from ebay but if u want to use a big turbo I should go with the tubular I thing the equal lenght only helps to spool the turbo faster




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I plan on using a T3/T4 turbo, hopefully around 20psi, planning on around 450HP give or take. It will still be probably another 8 to 10 months before I finish getting all the parts for the turbo kit and engine build I just couldn't find a tubular manifold anywhere. Topspeed makes one and it looks awesome really but its $1,000!!! I can get a cast log style for $150 and thats probably why no one really goes with the tubular manifold haha I messaged an ebay seller to see if he would be willing to sell just his tubular manifold by itself out of a kit just waiting to hear back, that might be another cheap option for a tubular manifold. Even though I will say the one on ebay looks much cheaper and the one at Topspeed looks like it would work the best. We might have a cheap alternative on ebay, but I seriously doubt it will work any better than a cast log manifold.

Thanks for the help though! I would probably would have never found the topspeed one if I didn't know it existed and its nice to know who is putting together working kits for the focus. I am running the duratec though not a zetec so that limits my options alittle too.
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Old 10-24-2013, 07:07 AM   #5
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OP, if you can weld you could make you're own too. It may not be the fanciest thing out there but with a little thought and planning I'm sure you could make one to work well for your goals.
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Old 10-24-2013, 09:22 AM   #6
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Yeah, that has crossed my mind too since I have an old stock mani-cat that I could cut the flange off of, I know how to weld and i'm sure I could fabricate my own but I don't have a welder and all the supplies, I was thinking of asking a fab shop in my area how much it would cost for them to custom make one though.
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Old 10-29-2013, 12:35 AM   #7
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Might be better off buying one..

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Old 10-29-2013, 08:38 AM   #8
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Ewe that's nasty looking
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Old 10-29-2013, 10:25 AM   #9
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haha yeah after seeing stuff like that it makes you just want to buy one! I probably am just going to buy one, but i'm confident enough in my fabrication skills that mine would not turn out this bad if I had to make my own. That guy obviously hasn't fabbed too many parts himself haha
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Old 10-29-2013, 01:15 PM   #10
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Fabbed too many parts? Hell it looks like someone forgot to turn the gas bottle on!

Just because everyone says they know how to weld, doesn't mean they know how to weld. Same with driving, drinking, and just about everything else lol
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