Headers, and what I intend to do about it....

[amcboy]

I really don't like the design of any of the current crop of headers out there.

None of them are anywhere near equal tube volume or length.

None of them collect properly to extract.

All of the collectors are too short for our low-rpm torquey motors.

I am debating making a set, but its time consuming to make all the jigs for just one set.


So, is anyone else interested in a set of really good hand-made TR-6 headers?


I'm thinking dual collector setup with 1,5,3 going to one collector and 6,2,4 to the other.

3/8" or 1/2" flange thickness.

8" to 12" collector lengths.

Visions of sidepipes dance in my head(ers), one from each collector...


Anyhow, if there is enough interest on the board for a custom set of quality headers, I'll price materials and do this.

Expect $500-$900 (including my labor) per set for mild steel. Jet-Hot will make them last like stainless, but that would be your business.

I'll charge exact materials cost plus $200 per set to assemble and pay for welding wire and gas.

I'll eat the jigging and development wastage costs.

If we do, say, 10 sets from the board, I'll give 10% of my $200 per set to the Basil for the board.


Anyone? Bueller?

 

[SpitBang]

6-2-1 headers do not extract properly, by having a 6-3-1 design you introduce a beneficial scavenging effect by having the primaries joined together in pairs at 180deg firing intervals.
Below is a good quality TR6 header

 

[amcboy]

Ah, veeery interesting.

I wasn't even considering the idea of connecting the halves of the timing cycle.

Just 1,5,3 out the drivers side and 6,2,4 out the passenger.

Cyclic scavenging is old school, but works.

I do see the advantage though in getting the 3-6 scavenge and the 4-1 scavenge to close the loops so to speak....


Where did you get the picture of the header in your post?

Are they yours? Did you buy them?

Did you make them? Do you have patterns?

Do you want to sell me a set so I can forget all this falderal about cutting and swear..uh, welding.

 

[SpitBang]

The picture of that header was taken by me, the guy who is doing head work for me is also providing a exhaust header for my GT6, though that one is designed for the TR6. I only had it in my hands for a few weeks.

The guy who deigned that header is based in the UK and Europe, I guess he would gladly get more made up for you, but it's going to cost a bit more than $900.

 

[vagt6]

Unless you're racing (e.g., constant, high revs), 6-3-1 is the way to go with the Triumph sixes.

Kas Kastner and Dave Vizard did all the right research to prove it, and you must utilize the appropriate exhaust system.

If you don't have it, grab a copy of Vizard's "Tuning Standard Triumphs under 1300cc", it may save you a lot of extra work on your project. Really good, technical info that every Triumph owner should have for tuning.

Excellent project, please keep us informed.