Exhaust gurus?

[ducatilover]

If it's max HP you're after, yes, go straight 4-1.

Not too fussed about getting more HP from it really, it already has a +4deg ignition and l&n foam filter up inside it with a nice big selection of jets, will have coil over plug conversion done too, just 'coz I can and it's cheap (I eBay!) and it looks like I'll be keeping standard cams (the E model only has a tiny bit more lift on the intake cam)
So, is a 4-2-1 ideal for road usage? Because I could chop it off at the collector and weld amid pipe on from there.

[AllanB]

The 4-2-1 set up is favoured over the 4-1 on road bikes as it gives a better mid-range. The 4-1 will have top end improvements over the 4-2-1.

If it was mine considering your intake changes etc I'd be inclined to use stock headers and graft on a desired mid-pipe/muffler and sort the jetting before experimenting with header designs.

Just for fun my Hornet 900 runs a 4-2-1-2

[ducatilover]

The 4-2-1 set up is favoured over the 4-1 on road bikes as it gives a better mid-range. The 4-1 will have top end improvements over the 4-2-1.

If it was mine considering your intake changes etc I'd be inclined to use stock headers and graft on a desired mid-pipe/muffler and sort the jetting before experimenting with header designs.

Just for fun my Hornet 900 runs a 4-2-1-2

4-2-1 it is then.
Unless I go mad

It'll be on stock headers until I can afford to buy the pipe and pay Bogan to make a yummy looking set
Jetting was sorted for K&N, standard headers and two Neptune cans, ran well and went pretty well for an old tank.
Shouldn't be a huge main jet change because the 4-2-1 has a more restricted can on it(standard GSXR1000K7 jobbie) and I'm not sure if I'll open that up.
Thinking of buying Bogan's Moriwaki can though, I like the name...

Was only looking at balance pipe changes, but I can't seem to find any real info on them.

[AllanB]

If you are making headers for a visual difference from everything else out there (have considered the same) if you use pipe with the same ID as stock and calculate your headers to be the overall same length as stock you will have little issues with performance or tuning. Sounds like a fun project.

[ducatilover]

If you are making headers for a visual difference from everything else out there (have considered the same) if you use pipe with the same ID as stock and calculate your headers to be the overall same length as stock you will have little issues with performance or tuning. Sounds like a fun project.

That was the plan, it's always worth throwing these ideas out there though.
Might be worth finding if later model ZX6 cams slot in, I know the E model do and my D model has good enough valve springs.
Now to find owners manuals!
I have a sneaking suspicion that the later model ones have smaller cam journals (they certainly have smaller crank journals, big ends and thinner small ends.)

[bogan]

Thinking of buying Bogan's Moriwaki can though, I like the name...

Buy me a bottle of argon, some stainless, and an even bigger bottle of red bull! and I'll weld up a 'bogan' can for ya, I hear that's a way better brand than moriwaki

edit, keep hunting for those valve angles, or even something off similar models, and I'll flick that spreadsheet up here

[ducatilover]

Buy me a bottle of argon, some stainless, and an even bigger bottle of red bull! and I'll weld up a 'bogan' can for ya, I hear that's a way better brand than moriwaki

edit, keep hunting for those valve angles, or even something off similar models, and I'll flick that spreadsheet up here

That'd be one hell of a red bull can!

Not too much research will be going on for a while, interwebs here is 0.19mbps and my hair line recedes more with each page load