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Good 2 into 1

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  • Jay-Dee
    Jay-Dee
    1 year ago
    About this loud.

    Probably louder than your current set up but not too obnoxious would be my guess from these videos.

  • Grease Monkey
    Grease Monkey
    1 year ago
    Thanks Jay-Dee, that's not too bad at all considering 👍
  • Jay-Dee
    Jay-Dee
    1 year ago
    No worries.

    YouTube videos can be fairly diabolical depending on a number of factors including the placement/quality of the device recording them and how much the bike gets revved. But I thought those two seemed like a pretty reasonable indication.
  • Jay-Dee
    Jay-Dee
    1 year ago
    This video is a pretty good one as well for real world riding.

    https://youtu.be/n3prUELu8JQ
  • Grease Monkey
    Grease Monkey
    1 year ago
    What thoughts on this header? To me it looks well made, it's not stepped but the collector seems to my unqualified eye to be decent, the rear pipe could be longer but it still has some length to it, thoughts?
    IMG_20231006_180047.jpg
    IMG_20231006_180120.jpg
  • speedzter
    speedzter
    1 year ago
    Hard to see in those pics, but If you look at the collector, you can see the radius bend in the primaries.
    More of a "but join" than a merge.
    Maybe not the best design out there.

    Take a look at this to compare.

  • Grease Monkey
    Grease Monkey
    1 year ago
    Thanks mate, I see what you are saying, picture is worth a thousand words as they say.
    (That's a very polite articulate way you have of saying they are shit headers hilly haha)
  • Grease Monkey
    Grease Monkey
    1 year ago
    Better?
    Screenshot_20231007-110506.png
  • Grease Monkey
    Grease Monkey
    1 year ago
    Cool, thanks, been seeing a bit of Vince of late 😁
  • Lushy
    Lushy
    1 year ago
    The Boarzilla is a good pipe for a Big engine. If you are looking for one for your 110 go with Fatcat dimensions, with the smooth inner baffle tube. Also Burns make really trick merge collectors. 
  • Grease Monkey
    Grease Monkey
    1 year ago
    Thanks for that but of info Nev,  black Boarzillas are like hens teeth over here at the minute but Fatcats and Lowcats are readily available, is the Lowcat just a Fatcat with a tilted up muffler or a completely different animal do you know?
  • Lushy
    Lushy
    1 year ago
    The Fatcat will be better than Boarzilla on your combo except for the bit from 6300 to 6600. 
  • Grease Monkey
    Grease Monkey
    1 year ago
    Quoting Lushy on 08 Oct 2023 11:08 AM

    The Fatcat will be better than Boarzilla on your combo except for the bit from 6300 to 6600. 

    Cripes! I don't take her there, lives in the 2500-6000 range on the open road, appreciate the heads up mate, thanks 👍
  • Jay-Dee
    Jay-Dee
    1 year ago
    Looking at Lushy's info in the cam thread (Thanks Lushy) and other stuff that I have seen the D&D pipes always make good power. I have a Bobcat (currently unused) for my Breakout and a Fatcat for my V-Rod which I haven't used yet either.

    Looking at both headers they are supposedly stepped but I'm buggered if I can see it, and the merge collector doesn't actually look to be anything special either (inside or out). They're definitely well made and they come ceramic coated but to be honest the ones that Hilly posted above look to be a better engineered thing.

    The factory headers on the Breakout are actually pretty good and at 1 3/4" are fairly substantial. The balance arrangement on the standard Breakout headers is probably a bit iffy but I intend to use them to start with when/if I ever get my shit together and get my engine mods done. With the mufflers baffle modded to be straight through and the header pipes ceramic coated they should still work well enough to make pretty good power with a 103 cube motor up to about 5500 - 6000RPM.

    The V-Rod Muscle factory headers are pretty decent as well. I intended to use the Fatcat but ended up ceramic coating the factory pipes and baffle modding the mufflers and it works well without being too noisy. It made 127hp (SE cams) on a stinking hot and humid Summer day which isn't too bad. I think that the short two into ones on them work the best, but they are obnoxiously loud and sound like shit (to be fair it's easy to make a V-Rod sound like shit).
  • 408
    408
    1 year ago
    Quoting Jay-Dee on 08 Oct 2023 02:30 PMedited: 08 Oct 2023 02:32 PM

    Looking at Lushy's info in the cam thread (Thanks Lushy) and other stuff that I have seen the D&D pipes always make good power. I have a Bobcat (currently unused) for my Breakout and a Fatcat for my V-Rod which I haven't used yet either.


    Looking at both headers they are supposedly stepped but I'm buggered if I can see it, and the merge collector doesn't actually look to be anything special either (inside or out). They're definitely well made and they come ceramic coated but to be honest the ones that Hilly posted above look to be a better engineered thing.

    The factory headers on the Breakout are actually pretty good and at 1 3/4" are fairly substantial. The balance arrangement on the standard Breakout headers is probably a bit iffy but I intend to use them to start with when/if I ever get my shit together and get my engine mods done. With the mufflers baffle modded to be straight through and the header pipes ceramic coated they should still work well enough to make pretty good power with a 103 cube motor up to about 5500 - 6000RPM.

    The V-Rod Muscle factory headers are pretty decent as well. I intended to use the Fatcat but ended up ceramic coating the factory pipes and baffle modding the mufflers and it works well without being too noisy. It made 127hp (SE cams) on a stinking hot and humid Summer day which isn't too bad. I think that the short two into ones on them work the best, but they are obnoxiously loud and sound like shit (to be fair it's easy to make a V-Rod sound like shit).


    I had a couple of mates who went the bobcat on their breakouts. They are both disappointted with the end result after other mods. Your modifications to the pipe may do the trick but l would be looking at other exhausts. I know options are limited with the width of the rear wheel. I think l ended up looking at a Freedom Performance or Bassani 2-1 with a short megaphone.
  • 408
    408
    1 year ago
    And a Lowcat works on a breakout

    IMG_5260.jpeg
  • Lushy
    Lushy
    1 year ago
    taken from D&D website. Fatcat.Description:
    2006-2017 Harley Dyna 2:1 Fat Cat is a stepped header system at the head is 1 3/4" to 1 7/8" at collector and 2 1/2" where the muffler goes to the header.


    I have never tested one on a V rod.
    As to 408, did your mates who were dissapointed, do the right stuff  re tuning etc? Or did they not like the look? Or were they comparing a 2 into one with 2 into 2? Any hard data to support the dissapointment? 
  • Grease Monkey
    Grease Monkey
    1 year ago
    Quoting 408 on 09 Oct 2023 01:48 AM

    And a Lowcat works on a breakout


    IMG_5260.jpeg
    I looked on the D&D website, they make a Lowcat to fit mine, the way it's written it seems they consider the Lowcat as an upswept Fatcat, stepped headers and same muffler cores available so it should be sweet for me because the Fatcat would get dragged I reckon and the Lowcat would only touch down if I went down and then it would be the least of my worries.
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