Project X

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teazer
Posts: 618
Joined: Mon Mar 07, 2011 8:10 pm
Location: Chicago

Re: Project X

Postby teazer » Mon May 04, 2020 3:45 pm

Ladies,
If you don't mind, please take your banter to another thread. Joking around is fine, but this is getting old when it spills over into a build thread.

Thanks

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stevewharton
Posts: 1192
Joined: Mon Jul 05, 2010 11:01 am
Location: Grimsby, Lincolnshire.
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Re: Project X

Postby stevewharton » Mon May 04, 2020 4:21 pm

teazer wrote:Ladies,
If you don't mind, please take your banter to another thread. Joking around is fine, but this is getting old when it spills over into a build thread.

Thanks


Couldn't agree more!
Look, my paintwork hasn't got "Fish scales" :x they're "Dragon scales" right!!! However, after some thought, I will accept "Black Marlin" or "Swordfish", but definitely not "Haddock" or "Cod".

madforitkev
Posts: 130
Joined: Tue Dec 13, 2016 7:21 pm
Location: Poole

Re: Project X

Postby madforitkev » Wed May 06, 2020 8:44 pm

So now I have had a chance to run it a bit with a set of old finely adjusted (hacked) Dencos, it was time to look at the custom (properly tuned) exhausts.

First step, confirmation of the current porting.

ports.JPG


Most dimensions are above, in addition.

Exhaust is now 57 wide (stock is 47 wide and 25.3 high)
Transfers I left at stock (37) wide and height (12mm)
Inlets now 27 wide and 32 high (stock is 28.5 high and 25 wide).

Because of the reed valves I also have ports in the piston skirts.

Remember I also have zero deck because of the squish (O ring) head, so all of my opening times have changed (as in the picture).

Anyway, luckily I know a genius with exhaust calculating software and the bottom line is to get the best power curve, I need to raise my transfers by 3mm. No probs will do that on the pre-paint strip.

So my exhaust will look like......


teazer2.jpg


......with a small compromise. I want to use tube headers to avoid segments and seam welds and that means s straight header (not a small cone as in the optimal calcs). But running the software again, I loose a small amount of power above 8k so I'm not worried about that and prefer the cosmetic improvement, Also I can apply a small swage to the out end of the header which might bring some of that power back. We will see.....

The power curve should look like this.....fingers crossed!!

Teazer.jpg


The stinger (tailpipe) will actually be slid in and welded 200mm down into the diffuser/belly to leave a small bit sticking out for a slide on silencer.

The header should finish up like this.....leaving a bit of extra length for adjustment....

IMG_2397.JPG


Time to go cone developing and welding.......
Honest baby....this is probably the cheapest bike I have ever bought!!

madforitkev
Posts: 130
Joined: Tue Dec 13, 2016 7:21 pm
Location: Poole

Re: Project X

Postby madforitkev » Fri May 15, 2020 3:37 pm

Got the new stainless steel headers back today.

IMG_2470.JPG


Plan is to still use the GT header clamp but add a dual radial O ring seal feature as the compression seals are a bit crap. If that works well I may even do away with the old seal and clamp and use quick release springs.

I also went back to the clocks.

Started with 1200 Bandit clocks and console.

download.jpg
download.jpg (8.02 KiB) Viewed 101 times


I wanted to be able to change electronics so had to design a split casing to get PCB's in and out.

IMG_2446.JPG


The black glass is the original glass with window tint inside. This obviously meant undoing the bezel crimp rings and resetting them again!

IMG_2447.JPG


The small gauge is now the GT gear indicator.Speed/revs on left. Fuel, temp and general OLED display on the right.

I will polish the newly machined domes up and get it all mounted next week.
Honest baby....this is probably the cheapest bike I have ever bought!!


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