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  1. #61
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    Quote Originally Posted by artpongs View Post
    . I'm not sure the optimal location for the bungs to be welded. I think just 2 are needed for rapid bike race correct?
    I think it depends on the bike. If you have one where it all collects then it should work with one. If you have 2 it'll use 2. I think Candy has 4 and does individual cylinder tuning, though he's running 4 of the add on tuning modules to pull that off to it's kind of a nuts system, but I suppose you get the fastest, most balanced tune that way.

    The setup would have to depend on where the headers come together so it's really up to the designer.


  2. #62
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    Hey Jay - I got an update from gofundme that included a photo of an interesting looking exhaust system. It had O2 bungs and an unexpected [At least, I didn't expect it] small diameter link-pipe between cylinder pipe merges. Is this a prototype that may be test run soon? Pass on any good news that may be percolating. Thanks.

  3. #63
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    Awe, did that show up via FB? I went in and changed some pre sets, one was add a photo which I thought was all ready there, interesting. best be this photo aprilia-rsv4-arata-exhaust-5.jpg

    That's the Akroprovic Ti header for the RSVR. A work of art as well as functional, that secondary mid pipe helps the flow through that tight 180 degree bend plus aids in a balance of the two collectors. I had quite the chat with them boys, just couldn't get them interested making one for the VFR. Ha on a side note the work of art is only a mire $3k, but for a bike thats all ready $20K + making 190 hps, so yea...

    aprilia-rsv4-arata-exhaust-4.jpg
    Last edited by RVFR; 02-17-2017 at 01:05 PM.
    Opportunity is where you anticipate it.

    Making the VFR have more get up and go. Header build fund @ https://www.gofundme.com/vfr-header-build

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  4. #64
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    I'd totally be in for this if it were being done for the 6th gen - I do not own a 5th gen. :(

  5. #65
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    ^ Figure there's a stronger market for the 6th gen has it to be available after, as LOL you know, I have a 5th gen that I can work with ;)
    Opportunity is where you anticipate it.

    Making the VFR have more get up and go. Header build fund @ https://www.gofundme.com/vfr-header-build

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  6. #66
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    well as long as the rear primary is shaped right for the bulge from the cct it can be used for for 5th and 6th gen.

  7. #67
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    Right you are, and that's the plan.
    Opportunity is where you anticipate it.

    Making the VFR have more get up and go. Header build fund @ https://www.gofundme.com/vfr-header-build

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  8. #68
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    Only $3000? Well, then, as Chevy Chase said in 'Fletch', I'd better only have two...

    Quote Originally Posted by RVFR View Post
    Awe, did that show up via FB? I went in and changed some pre sets, one was add a photo which I thought was all ready there, interesting. best be this photo aprilia-rsv4-arata-exhaust-5.jpg

    That's the Akroprovic Ti header for the RSVR. A work of art as well as functional, that secondary mid pipe helps the flow through that tight 180 degree bend plus aids in a balance of the two collectors. I had quite the chat with them boys, just couldn't get them interested making one for the VFR. Ha on a side note the work of art is only a mire $3k, but for a bike thats all ready $20K + making 190 hps, so yea...

    aprilia-rsv4-arata-exhaust-4.jpg

  9. #69
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    Just a slight up date. I had another great conversation with Gabe and introduce Miles to him, which is a fairly new owner of a 4th gen VFR. Got a chuckle a little bit here, Some people just have all the luck. He picked up knowing this VFR was a a fixer upper at a good price, while poking around he noticed that a header tube was cracked, just so happen, it's a 2 bro header WT... Yea right? Thing was, he wasn't finding any one that could repair this. I offered to let Gabe take a look, and wa-la all is good.
    In that seeing it is the genuine article, I took some comparison photos.
    Gabe now is making a wood jig, also noting some minor tweaks that could be made, but over all, he likes the layout. Now for ordering up some tubes. Then in measuring the 2bro, come to find out even though it a 4th gen header, it has 36mm id primary's, interesting, there's quite the difference. Ooo I'm liking where this is going

    DSCF0894.jpg

    DSCF0895.jpg
    Last edited by RVFR; 02-20-2017 at 03:41 PM.
    Opportunity is where you anticipate it.

    Making the VFR have more get up and go. Header build fund @ https://www.gofundme.com/vfr-header-build

    [

  10. The Following 2 Users Say Thank You to RVFR For This Useful Post:

    artpongs (02-18-2017), jorgescar69 (02-20-2017)

  11. #70
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    Quote Originally Posted by RVFR View Post
    Just a slight up date. I had another great conversation with Gabe and introduce Miles to him, which is a fairly new owner of a 4th gen VFR. Got a chuckle a little bit here, Some people just have all the luck. He picked it up as a fixer upper at a good price, while poking around he noticed the a header tube was cracked, just so happen it's a 2 bro header WT... Yea right? Thing was, he wasn't finding any one that could repair this. I offered to let Gabe take a look, and wa-la all is good.
    In that seeing it is the genuine article, I took some comparison photos.
    Gabe now is making a wood jig, also noting some minor tweaks that could be made, but over all, he likes the layout. Now for ordering up some tubes. Then in measuring the 2bro, come to find out even though it a 4th gen header, it has 36mm id primary's, interesting, there's quite the difference. Ooo I'm liking where this is going

    DSCF0894.jpg

    DSCF0895.jpg
    I love all this porn

    Sent from my SM-G550T1 using Tapatalk

  12. #71
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    Hey Jorge - I'm stoked for you and your 4 gen friend, but don't derail Gabe from our preexisting 5 gen/6 gen header project!

  13. #72
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    Or us guys with even older bikes. Now I'm sorry I sold that 1953 Velocette. Next thing ya know, a shitload of harleydoods will want a set for their bikes. This brings up the question of being able to chrome titanium and smooth oot those welds.

  14. #73
    Uber Guru Lint's Avatar
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    You may already know all of this, but it's very germane to this thread.

    Excellent explanation of exhaust systems.

    https://youtu.be/RWTARjxiqlo
    Videat veritatem

    See the truth

  15. The Following 2 Users Say Thank You to Lint For This Useful Post:

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  16. #74
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    Yep, I've talked with guys just like him. They're all pretty much on the same page. Interesting thing about this, Gabe and I have been talking Duals, but with the SSSA it's like Huh? Maybe? Then see a left sided VFR and go Hmmm. Maybe make em like the RC51 layout high and tight, IDK. Goal is also keep it simple, but duels would be a snap to install, less hassle there merging the two. God knows all the 6th gen owners love their dual outlets even though some are single. Just more food for thought.

    Opportunity is where you anticipate it.

    Making the VFR have more get up and go. Header build fund @ https://www.gofundme.com/vfr-header-build

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