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Yet another GT42/Halfbridge...
Seems like everyones got a GT42 hanging off their bridgeported motor nowadays, but I never get tired of seeing them, so here's another. This build has been on a pretty tight budget, since college likes to buttseckz my bank account. I did splurge a bit however and finally bought me a TIG welder, a little Miller EconoTIG, and here are the results.
These are some pics of my 321SS equal-length divided turbo manifold(as equal length as I could get with my limited tools). The flanges I machined at the place I work and are 304 stainless. Runners are 13" long from flange face to face. The welds turned out pretty crappy on the manifold, as this was my first stainless project and I didn't think I had time to practice, so I just started welding. The welds actually look better on the inside due to the heavy backpurge. http://i104.photobucket.com/albums/m...ete_exmani.jpg http://i104.photobucket.com/albums/m...p7/tacking.jpg http://i104.photobucket.com/albums/m...lip7/mani1.jpg http://i104.photobucket.com/albums/m...p7/exmani2.jpg http://i104.photobucket.com/albums/m...p7/exmani1.jpg Charge pipe: 3.5"->2.75", couldn't find a tight enough bend, so I had to stovepipe it and make a taper. Piping and turbo still needs polished. http://i104.photobucket.com/albums/m...ip7/motor4.jpg http://i104.photobucket.com/albums/m...ip7/motor3.jpg The exhaust is 4"dia 304 stainless, with a DNA presilencer and Magnaflow muffler-thingy. I'm still looking for some SS rod for hangers, the zipties arn't permanent. http://i104.photobucket.com/albums/m...7/downpipe.jpg http://i104.photobucket.com/albums/m...aust_floor.jpg http://i104.photobucket.com/albums/m...xhaustfull.jpg http://i104.photobucket.com/albums/m...p7/exhaust.jpg I didn't have the money for a fuel cell and big inline pump, so I just added another Walbro for now. Stainless hardlines with -8 AN feed/return. http://i104.photobucket.com/albums/m.../fuelpump1.jpg http://i104.photobucket.com/albums/m.../fuelpump2.jpg Thats it fer now, next up is a turbo brace, cage, and some other shit. |
very nice!! haha and this will not be a very quiet car my man!!
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Looks Great !!!!!!!
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Awesome. That manifold looks very nice. You weld well. Good luck on the project. Should make quite a bit of power.
Dee E. |
Very nice, i envy ur welder i cannot wait to upgrade from my lincon electric 110 mig job
Also glad to see the nice integration of the waste gate runners at a nice shallow angle as apposed to the 90* bends so many people seem to use |
very very nice man..that fuel pump setup looks sick too
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very pretty :) Love the influx of half bridgies! Can't wait till all these projects get up and running so we can see numbers/track times.
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didn't know you got a new welder too. Let me know if you want to make another exhaust! :)
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Very nice looking manifold bro. Good luck with the project. I too have a half-bridge block with a Garrett GT42r turbo attached to it!
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Very nice setup, i may have misread, but did you say you have never practiced welding before?
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A smooth wastegate runner transition was one of my primary goals on this manifold. As for the welding, I mostly just have experience with aluminum, very little stainless steel before now.
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wow, that's some really nice fabricating!
well, one really picky thing. ha, a rolled taper would've been a little nicer |
Everything looks awesome.
Want to see the final product :) |
that beech is gonna be louddddddddddddd
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Nice setup. I have one question. How did you attach the fuel pumps to the stainless lines?
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what size tungsten rod and filler did you use for the aluminum? everything looks awesome by the way
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welds on that mani look freakin sweeeeet
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That's great work! The fuel pump setup is probably the best dual Walbro installation I've seen. So many people half-ass it with rubber hose and zipties. :)
Wish I had backpurged my stainless manifold...Did you just run another gas bottle with a 2nd regulator? |
This just makes me want to take everything apart... :)
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Bus, looking good brotha! Can't wait to get my project under the knife! Guys, this set-up looks 10 times better in person!
Ty |
Big thumbs up!
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Originally Posted by DelSlow
(Post 7056048)
A smooth wastegate runner transition was one of my primary goals on this manifold. As for the welding, I mostly just have experience with aluminum, very little stainless steel before now.
Your fabrication is very very nice however you may encounter some slight boost control issues with the location of the rear wastegate runner entry. You currently have it at a 90 degree angle in relation to the air path. Idealy for wastgates to be most effective, the runner should be more in-line with the air path. Look at your wastegate runner for the front rotor. That's how it should be for best response. |
Originally Posted by t-von
(Post 7062697)
Your fabrication is very very nice however you may encounter some slight boost control issues with the location of the rear wastegate runner entry. You currently have it at a 90 degree angle in relation to the air path. Idealy for wastgates to be most effective, the runner should be more in-line with the air path. Look at your wastegate runner for the front rotor. That's how it should be for best response.
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Looks real good Bus can't wait to see it at the rx-7 store meet
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Nice fab work, nice design work, nice nice nice.
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