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10-16-2012, 11:29 AM | #1 |
Scooby Newbie
Member#: 200057
Join Date: Jan 2009
Location: Cottage Grove, MN
Vehicle:2018 Impreza 2.0i 5d RalliSport Blue |
RalliSport 2.0i UEL Header build...
Here's a "pre-prototype" header I made for the 12/13 2.0i
I'll update with some specifics later. 1 5/8" primaries Fully blended merge bullet
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10-16-2012, 12:00 PM | #2 |
Scooby Specialist
Member#: 201277
Join Date: Jan 2009
Chapter/Region:
MAIC
Location: Northern VA
Vehicle:2008 08 QSM 5MT LGT QSM |
Nice work, as usual What the big differences, if any btwn the FB20 and the EJ253 stud spacing wise? It appears that the layout is fairly similar from the prototype.
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10-16-2012, 02:59 PM | #3 |
Scooby Specialist
Member#: 317014
Join Date: Apr 2012
Chapter/Region:
Tri-State
Location: NY/CA
Vehicle:2017 Crosstrek ISM |
Oooooooohhhhh......Aaaaaaahhhhhh! Grasshopper is patiently waiting for this.
Last edited by uspopo; 10-16-2012 at 03:04 PM. |
10-16-2012, 04:51 PM | #4 | |
Scooby Newbie
Member#: 314973
Join Date: Mar 2012
Chapter/Region:
BAIC
Location: California
Vehicle:2012 Impreza Sport Satin White |
Quote:
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10-16-2012, 08:04 PM | #5 |
Scooby Newbie
Member#: 316907
Join Date: Apr 2012
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Tri-State
Location: Long Island, NY
Vehicle:2012 Impreza Ice Silver Metallic |
In on 1. Yes I want.
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10-16-2012, 09:32 PM | #6 |
Scooby Newbie
Member#: 320291
Join Date: May 2012
Location: Toronto, Canada
Vehicle:2012 Impreza 4DR 5MT White |
Dammnnnnnn these look awesome!
Will you be considering doing a dyno run for stock vs your exhaust setup for comparison? Last edited by Wes_888; 10-16-2012 at 09:32 PM. Reason: typo |
10-17-2012, 12:08 AM | #7 | ||
Scooby Newbie
Member#: 200057
Join Date: Jan 2009
Location: Cottage Grove, MN
Vehicle:2018 Impreza 2.0i 5d RalliSport Blue |
Quote:
The bolt circle diameter on the three bolt flange has been increased (which is why I had to hack up one of my off the self 2.5i flanges to make it fit, until I get some custom ones made). Also, the angle of attack of the three bolt flange is slightly different: on the 2.5i its roughly 15 degrees from being perpendicular with the engine, on the FB20 its only about 5 degrees. Quote:
To all those seeking rumble for their 2.0i PLEASE NOTE: I'm not trying to turn away sales, but since the 2.0i already comes with that wonky "Lakester" style collector, it's inherently a UEL design and you can gain at least a mini rumble by simply bolting on an axleback or full catback (both of which I'm also developing). So spending $600 on a aftermarket UEL just to gain a little more rumble seems redundant and pricey, (but hey, if there is enough demand, I'm more than willing to make one for that purpose!). Therefore, I will be concentrating on building a performance header while still retaining a UEL design (to satisfy the demand for rumble). The header I posted pics of is simply a starting point, I can lean more toward the peak hp side or toward the lower end tq side. I can stay 4-1 or go 4-2-1, experiment with piping diameter and lengths etc etc. Honestly though, I mostly put this header together to see how long I can run a HFC on a PZEV model before it throws a cel. Absolutely! My goal is to come up with a header/cat delete pipe/catback combo that reclaims the 20chp the base Impreza lost when going from the EJ253 to the FB20. Hey, its good to have goals... Last edited by blk6s; 10-17-2012 at 12:45 AM. |
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10-17-2012, 12:20 AM | #8 |
Scooby Specialist
Member#: 313093
Join Date: Mar 2012
Chapter/Region:
VIC
Location: Vancouver Area
Vehicle:2012 Impreza 2.0i 5-door Sport. Dark Grey |
Sweet, this looks awesome. I'm interested in one too.
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10-17-2012, 04:07 AM | #9 |
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Join Date: Apr 2012
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Location: NY/CA
Vehicle:2017 Crosstrek ISM |
Sweet! Thanks brother..=)
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10-17-2012, 08:02 AM | #10 |
Scooby Specialist
Member#: 271928
Join Date: Jan 2011
Chapter/Region:
Tri-State
Location: Gettysburg PA
Vehicle:2014 WRX Limited Crystal Black Silica |
Looks good, I thought I heard a slight rumble when I watched a video of someone revving with an unbolted muffler
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10-17-2012, 09:29 AM | #11 |
Scooby Specialist
Member#: 201277
Join Date: Jan 2009
Chapter/Region:
MAIC
Location: Northern VA
Vehicle:2008 08 QSM 5MT LGT QSM |
Mike any pics of a stock 2.0i manifold off the car ??
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10-17-2012, 10:37 AM | #12 |
Scooby Newbie
Member#: 200057
Join Date: Jan 2009
Location: Cottage Grove, MN
Vehicle:2018 Impreza 2.0i 5d RalliSport Blue |
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10-17-2012, 10:47 AM | #13 |
Scooby Specialist
Member#: 317014
Join Date: Apr 2012
Chapter/Region:
Tri-State
Location: NY/CA
Vehicle:2017 Crosstrek ISM |
I am grateful that you purchased an Impreza so that you have a fulltime vehicle at your disposal for R&D. Thank you sir.
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10-17-2012, 02:29 PM | #14 |
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I got a custom cat back and yes it has a little rumble, but I want more lol!
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10-17-2012, 04:47 PM | #15 |
Scooby Specialist
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Vehicle:2014 WRX Limited Crystal Black Silica |
Interesting headers they changed to
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10-17-2012, 08:58 PM | #16 |
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Member#: 165749
Join Date: Dec 2007
Location: Detroit, MF'er!
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How do you feel about an EL design with the same collector and no cat? Any ballpark on what the price would be? I may be interested in such a header if it fits the BRZ. I could even calculate the primary diameter and lengths. I would love to make my own header but I don't have a tig machine and you seen to have it figured out.
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10-18-2012, 03:50 AM | #17 | |||
Scooby Newbie
Member#: 200057
Join Date: Jan 2009
Location: Cottage Grove, MN
Vehicle:2018 Impreza 2.0i 5d RalliSport Blue |
Quote:
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10-18-2012, 06:15 AM | #18 |
Scooby Specialist
Member#: 313093
Join Date: Mar 2012
Chapter/Region:
VIC
Location: Vancouver Area
Vehicle:2012 Impreza 2.0i 5-door Sport. Dark Grey |
I'm primarily interested in power gains but I would like the headers to make the rumble louder too. That would be the best of both worlds.
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10-18-2012, 08:55 AM | #19 | |
Scooby Specialist
Member#: 165749
Join Date: Dec 2007
Location: Detroit, MF'er!
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Quote:
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10-18-2012, 11:36 AM | #20 | |
Scooby Newbie
Member#: 314973
Join Date: Mar 2012
Chapter/Region:
BAIC
Location: California
Vehicle:2012 Impreza Sport Satin White |
Quote:
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10-18-2012, 05:12 PM | #21 | |
Scooby Newbie
Member#: 200057
Join Date: Jan 2009
Location: Cottage Grove, MN
Vehicle:2018 Impreza 2.0i 5d RalliSport Blue |
Quote:
AP has makes a 4-2-1 EL header for the BRZ as well. |
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10-18-2012, 05:20 PM | #22 |
Scooby Specialist
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Join Date: Jan 2011
Chapter/Region:
Tri-State
Location: Gettysburg PA
Vehicle:2014 WRX Limited Crystal Black Silica |
The stock Brz headers actually look pretty good to begin with
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10-18-2012, 05:28 PM | #23 |
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Join Date: Jul 2011
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Well I bought your first one and I LOVE IT
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10-19-2012, 03:22 AM | #24 |
Scooby Specialist
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Join Date: Mar 2012
Chapter/Region:
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Location: Vancouver Area
Vehicle:2012 Impreza 2.0i 5-door Sport. Dark Grey |
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10-19-2012, 10:15 AM | #25 |
Scooby Newbie
Member#: 200057
Join Date: Jan 2009
Location: Cottage Grove, MN
Vehicle:2018 Impreza 2.0i 5d RalliSport Blue |
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