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slammedragtop
Samba Member
Joined: February 05, 2002
Posts: 44
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 Posted: Mon Dec 15, 2014 2:18 pm Post subject: Which header and collector for my 1776 ? |
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Looking to switch back to a heater box system. I'm currently running a 1 5/8 merged header with a magnaflow muffler. Looking to go with the 1 1/2 in heater boxes since the stockers don't seem to flow enough. I tried a set of stock heater boxes and a standard empi 1 3/8 header and dual quiet packs once on this motor and definitely felt a big drop in power. I have several systems laying around that I can use just wondering what would be best. Herer's my engine combo:
1776
110 engle cam
stock heads
stock ratio rockers
8.5 compression
dual 40 weber's
The standard headers that have the large three bolt flange are the only ones that seem to come in 1 1/2 in unless you get a sidewinder or something. I do have a standard header with the large 3 bolt flange and the euro tuck away muffler for it that's new. not crazy about the poor bends from the flange to the glass packs. I have the 1 3/8 headed and hideaway muffer just seems dumb to do 1 1/2 tubed heater boxes to a 1 3/8 header.
Thoughts are appreciated |
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[email protected]
Samba Member
Joined: August 03, 2002
Posts: 12785
Location: Salt Lake City, Utah
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nobuggybob
Samba Member
Joined: October 31, 2008
Posts: 415
Location: Monument Co.
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| Posted: Mon Dec 15, 2014 7:38 pm Post subject: |
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Talk to Danny at Kymco He has a very nice 1-1/2" flanged heater box set up.
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You Can't Quit Poverty |
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gt1953
Samba Member
Joined: May 08, 2002
Posts: 13848
Location: White Mountains Arizona
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| Posted: Mon Dec 15, 2014 8:00 pm Post subject: |
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The best way to over all select the exhaust for your application would be to dyno test them all. Dyno's tell lots about the build and what will work the best. Now with deep pockets you could do that. You are using stock headded valves. I stay with stock heater boxes and 1 3/8 myself.
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Dauz
Samba Member
Joined: January 05, 2010
Posts: 1790
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| Posted: Mon Dec 15, 2014 8:04 pm Post subject: |
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| Can't go wrong with the bugpack streetmax |
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slammedragtop
Samba Member
Joined: February 05, 2002
Posts: 44
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| Posted: Sun Jan 04, 2015 9:38 pm Post subject: |
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| Thanks for the replies and pics. Definitely leaning towards that style of header. From what I've found online looks like empi also makes one of the similar style as well. Tried the euro tuck on a motor I had on the run stand wasn't really into the sound and don't like exhaust bends. |
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jfats808
Samba Member
Joined: December 10, 2007
Posts: 5022
Location: oahu hawaii
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| Posted: Sun Jan 04, 2015 11:16 pm Post subject: |
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For mufflers and headers, id stay away from Empi models. They dont last. Bugpack makes excellent header and muffler set ups and u get your moneys worth imo.
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2017 48 Trijet DRLA's W125
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