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some pics of my weekend prject

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leland77

15+ Year Contributor
40
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May 5, 2004
Issaquah, Washington
just thought you guys might get a kick out of seeing some pics of a manifold my buddy and I built this weekend. He has been making them off and on for a few years now. There super burly schedule ten 304 stainless. he's never had one crack yet. each runner flow benches 250+cfm and the merge collector is a piece of art. Wish I would have gotten some pics of it. What do you guys think?
 

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Thanks yea he's been getting pretty serious lately. Been making them for quiet a few different cars. Trying to give Full Race a little competition. LOL
 
There's not one bend in that whole mani more than 90 degrees, and even those 90's are at least radius bends which is better than a cast mani where the exhaust flow runs into a wall, then turns. Too close to the motor? It's held in there to keep it from heat soaking the radiator and, last time I checked thats WAAAYYY more important than having it near the mill. We could have built that thing to put the turbo anywhere, in the damn trunk of you want! we did it that way for a reason. As for the first question, the i.d. on those schedule ten tubes is 1.5" I believe
 
I dont like all of the bends in the piping slows exhaust gases down alot. Just my oppinion
 
slowed my exhaust down enough to spool my evo 3 16g almost 300 rpms quicker. 2900=20psi. HOWS THAT!
 
leland77 said:
slowed my exhaust down enough to spool my evo 3 16g almost 300 rpms quicker. 2900=20psi. HOWS THAT!
DAMN! It looks pretty sweet if you asked me. Probably one of the nicest tubular manifolds I've seen! Good job :thumb:
 
thanks man we put alot of work into it. my buddy seriously takes pride in ever part he makes. kind of a engineer in a artist type of guy
 
Tell you what... you hook me up with one of those for free and i'll sport it around in ND and get you madd buisness :thumb:












haha, j/k. Good job tho, looks good and apparently functions pretty well too. :thumb:
 
Your buddy wouldn't happen to be able to sell those, would he? The quality looks great, and I could use a new manifold already flanged for an external gate off the collector. If your friend is willing, I'd be happy to possibly buy one if the price is reasonable. PM me if you want to talk! :)
 
yea man lemme know how much he wants for one of those....i don't it flanged for a external though...jus one that would mate up to a mitsi style turbine housing (16g 20g etc) lemme know asap..... :dsm:
 
nice job. But those nuts in the back must be a pain in the ass to unscrew.
 
one word: yummy. i want one, but unfortunately i dont have any money. you friend should seriously look into selling those
 
Mr.Tao said:
nice job. But those nuts in the back must be a pain in the ass to unscrew.

Gear wrenches and some swivel head sockets... :)
Nice manifold fellas... :cool:
 
gear wrenches, swivel heads, woblies all the usual suspects. It was not all that bad to install. Justin is starting to sell them though. 650 ungated 750 gated. full lifetime warranty on the part. He's had them running around on some very serious cars over here for well over a year with not one failure. So he's not afraid to stand behind his work
 
o yeah we back purged it with argon start to finish. We also worked across the whole mani evenly to keep the heat distributed and not overheat/harden or remove too much (chromium?)not sure how it's spelled.Hey Nick p.m. or call me, Justin wants one of these on your car!
 
What grade of ss did you use. One of the major failure modes of the tubular manifolds out there is that the heat causes the formation of chromiumcarbide after heating and it is no longer stainless. To fix this just see if you can get the material with an L suffix on it.

IE 316 (bad for high heat/welding) 316L (good for high heat and welding)

if you are seriously looking into making and selling those you should check into it.
 
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