Engine/Power - EJ25T (STI and 2006+ WRX) Discussions about the USDM 2006+ WRX and WRX STi 2.5 liter turbo flat-four.

Thick wall equal length header/uppipe

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Old Mar 11, 2009 | 07:57 PM
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Thick wall equal length header/uppipe

Have a handful of welds to finish on the header and need to break apart the uppipe and bevel the joints and clean it and then weld it together. Test fitted the uppipe today to make sure everything cleared the engine cradle and everything was on the money the first go around.

Old Mar 11, 2009 | 08:03 PM
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Looks good,I like the burly flanges.Is this just a one off for yourself or are you going into production?
Old Mar 11, 2009 | 10:44 PM
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looks sweet. are you going to coat them?
Old Mar 12, 2009 | 10:55 AM
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Originally Posted by Rgame
Looks good,I like the burly flanges.Is this just a one off for yourself or are you going into production?
This is going into production as soon as we're done testing
Old Mar 12, 2009 | 12:14 PM
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Hey kelly will that clear all oil pans? Or just sti? EITHER WAY THAT THING ****ING ROCKS!!!!!
Old Mar 12, 2009 | 12:16 PM
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Originally Posted by EQ Tuning
This is going into production as soon as we're done testing
final product going to be mandrel bent?
Old Mar 12, 2009 | 03:45 PM
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it already is mandrel bent in the sense that the inside diamteter stays the same throughout, i just use elbows right now and if i need a different angle than 45/90 i jsut cut the elbow to get the right angle. Im looking into using bends with legs instead of just the bends to speed things up and have less welds.

This tubing/piping to be more exact doesnt just get mandrel bent. it has a wall thickness up to .14 compared .065 which most companies use, so it has to go through a special process, of induction bending where the material is heated up and then bent. I'd like to get most of the pieces fully bent out or atleast the portions that i can.
Old Mar 12, 2009 | 03:48 PM
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It should clear most everything out there, although I have only tested it with a 2.5l oilpan that the man from DB let me use...thanks again paul i still owe you! But there is a lot clearance between the pan while also giving the filter enough clearance
Old Mar 12, 2009 | 04:10 PM
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Wow, that looks really nice. Basically, that's just like that 1.5 scroll setup. Equal pulse almost all the way to the turbine entry! I'd be very interested to see a tuned before and after dyno, assuming you kept the same turbo.

Idea on pricing? and can you share any of the specs (e.g. diameter of the primaries, etc. blah blah i-don't-know-what-i'm-talking-about-but-i-hope-you-get-the-picture)?
Old Mar 12, 2009 | 11:27 PM
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planning on making a set of titanium later?
Old Mar 13, 2009 | 10:12 AM
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lol....that would be very expensive. Also the way titanium neds to be welded makes it more difficult. But if you wanted it made out of an exotic material inconel would be the way to go not titanium.
Old Mar 13, 2009 | 06:39 PM
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Ill take mine inconel 600 please MMMMMM toasty!!!!!!
Old Mar 21, 2009 | 08:57 PM
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Originally Posted by kmurphy
lol....that would be very expensive. Also the way titanium neds to be welded makes it more difficult. But if you wanted it made out of an exotic material inconel would be the way to go not titanium.
Oh! just asking... i'm new to the world of turbos. this being my first SUB. but i thought titanium would be a better, lighter choice of metal.
i looked up the metal you mentioned and WOW... looks good and I'm thinking its lighter than titanium?

My world is motorcycles so I found this... silencer is ti/ inconel with header full inconel... NICE! i likes...
Attached Thumbnails Thick wall equal length header/uppipe-gsxr-exhaust....jpg  
Old Mar 25, 2009 | 11:09 PM
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Old Mar 25, 2009 | 11:12 PM
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looks good i saw it in person today.



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