Making a header for an odd app
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- Posts: 195
- Joined: Mon Feb 09, 2015 4:45 am
Re: Making a header for an odd app
So
It os looking like the full tri y is not going to happen.
So it is a 4 into 2 paired correct.
I am looking at anti reversion chambers and the theory bihind them. Wondering if this will help a 2 into 1 header.
Sample motorcycle header.
And my scooter with a 2387.
Does anyone here have any experience with 2 cylinder headers and/or anti reversion chambers?
It os looking like the full tri y is not going to happen.
So it is a 4 into 2 paired correct.
I am looking at anti reversion chambers and the theory bihind them. Wondering if this will help a 2 into 1 header.
Sample motorcycle header.
And my scooter with a 2387.
Does anyone here have any experience with 2 cylinder headers and/or anti reversion chambers?
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- Posts: 195
- Joined: Mon Feb 09, 2015 4:45 am
Re: Making a header for an odd app
Just another pic for reference.
- sideshow
- Posts: 3428
- Joined: Mon Oct 27, 2003 11:00 am
Re: Making a header for an odd app
Weird, I spent the morning thinking about anti-reversion cones into a more mundane exhaust to make the heat riser (center mount carburetor) work better. And until you posted that, I have never seen one.
I never knew how Jim Fueling actually made them, I was thinking washer welded into a fish scale like step.
I never knew how Jim Fueling actually made them, I was thinking washer welded into a fish scale like step.
Yeah some may call it overkill, but you can't have too much overkill.
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- Joined: Sun Mar 17, 2013 6:39 pm
Re: Making a header for an odd app
Jims were a tapered cone welded right in at the exhaust flange.
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- Joined: Mon Feb 09, 2015 4:45 am
Re: Making a header for an odd app
In the harley world it is common for folks to get pipes that are "cool looking" instead of tuneable. Lots of them are too large diameter and too short.
So those cones are used all the time to bring them closer to tune.
So those cones are used all the time to bring them closer to tune.
- ps2375
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- Joined: Mon Aug 18, 2014 8:04 am
Re: Making a header for an odd app
Looks like a venturi.
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- Joined: Mon Feb 09, 2015 4:45 am
Re: Making a header for an odd app
First can mocked up.
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- Joined: Wed Aug 11, 2004 6:20 am
Re: Making a header for an odd app
That is some very nice work
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- Posts: 195
- Joined: Mon Feb 09, 2015 4:45 am
Re: Making a header for an odd app
The oddball header is nearly all made and tacked up.
I had to lathe out a lot if the bits and pieces.
So it is a split header. 4 into 2.
1 and 3 paired .
2 and 4 paired.
1-5/8= od tube at the head.
Into 2-1/4" od anti reversion chamber
Then 1-3/4" od primaries 30" long
Then steep tri y style collector.
Then a short 2" od secondary
Then a 2-1/2" anti reversion chamber elbow.
Then a cone back to 2"
I had to lathe out a lot if the bits and pieces.
So it is a split header. 4 into 2.
1 and 3 paired .
2 and 4 paired.
1-5/8= od tube at the head.
Into 2-1/4" od anti reversion chamber
Then 1-3/4" od primaries 30" long
Then steep tri y style collector.
Then a short 2" od secondary
Then a 2-1/2" anti reversion chamber elbow.
Then a cone back to 2"
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- Posts: 195
- Joined: Mon Feb 09, 2015 4:45 am
- Piledriver
- Moderator
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- Joined: Sat Feb 16, 2002 12:01 am
Re: Making a header for an odd app
I love the crossover
Addendum to Newtons first law:
zero vehicles on jackstands, square gets a fresh 090 and 1911, cabby gets a blower.
EZ3.6 Vanagon after that.(mounted, needs everything finished) then Creamsicle.
zero vehicles on jackstands, square gets a fresh 090 and 1911, cabby gets a blower.
EZ3.6 Vanagon after that.(mounted, needs everything finished) then Creamsicle.
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- Posts: 195
- Joined: Mon Feb 09, 2015 4:45 am
Re: Making a header for an odd app
Crazy forum would not let me IMG link any size of pic from photobucket.
I dont know what is going on.
So I URL linked the whole album.
I wish the site was easier to IMG pic too.
I dont know what is going on.
So I URL linked the whole album.
I wish the site was easier to IMG pic too.
- Piledriver
- Moderator
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- Joined: Sat Feb 16, 2002 12:01 am
Re: Making a header for an odd app
Its being worked but IIRC photobuckets doing something different.
Addendum to Newtons first law:
zero vehicles on jackstands, square gets a fresh 090 and 1911, cabby gets a blower.
EZ3.6 Vanagon after that.(mounted, needs everything finished) then Creamsicle.
zero vehicles on jackstands, square gets a fresh 090 and 1911, cabby gets a blower.
EZ3.6 Vanagon after that.(mounted, needs everything finished) then Creamsicle.
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- Posts: 195
- Joined: Mon Feb 09, 2015 4:45 am
Re: Making a header for an odd app
Photobucket is loaded up with more ads and pop ups.
Almost unusable now.
Recently updated my Android phone to nougat and I have compatibility issues with photobucket mobile app. I have to use the desktop site now.
Has STF changes pic size or limitations?
Photobucket IMG links work everywhere else but here.
Almost unusable now.
Recently updated my Android phone to nougat and I have compatibility issues with photobucket mobile app. I have to use the desktop site now.
Has STF changes pic size or limitations?
Photobucket IMG links work everywhere else but here.
- petew
- Posts: 3920
- Joined: Sat Oct 07, 2006 4:05 pm
Re: Making a header for an odd app
Just read through your thread. Awesome stuff. I don't usually like trikes but your's is fantastic.
BTW, you can upload pics to STF like this at the bottomof the "full editor and preview" page.
BTW, you can upload pics to STF like this at the bottomof the "full editor and preview" page.
You do not have the required permissions to view the files attached to this post.