ESE's works engine tuner

[Flettner]

Remember I've got a heap of Z1 gearbox bits here that apparently no-one wants. Reasonably close ratio 5 speed - and rugged.
Drag guys have put huge HP through these boxes.
Pay freight and they're all yours. One complete and one with no selector drum.

Send me a $ figure and a bank account number and you are on.
To Hamilton depot only.
Dont suppose you have the cases, to measure up?

[speedpro]

3rd gear is only good for about 180hp, evidently

[husaberg]

Hi Neil
If i was going to the trouble to clock the case and do a production run, i would use a Oil air GSXr transmission they are good or over 200HP for the 5 and available in a wide variety of years and 5 and 6 speed 750/1100. Suzukis of that era were the best shifting bikes.
Either that or a VF750 as they are narrow as none of those lasted long enough to blow a gearbox. Pretty sure they are available in 5 or 6 as well

[Flettner]

Are they free, or seriously cheap?
I only want two gearboxes, one for me and one for Wayne.
I kind of doubt anyone else would want a 700cc twin twostroke road bike engine.

[andreas]

What is the anticipated price for such engine?

[husaberg]

Are they free, or seriously cheap?
I only want two gearboxes, one for me and one for Wayne.
I kind of doubt anyone else would want a 700cc twin twostroke road bike engine.

Well They are not as cheap as free. $300-500 landed by the looks of it on fleecebay . if you are only doing two go with Grumps

[philou]

I kind of doubt anyone else would want a 700cc twin twostroke road bike engine.

it will be complicated to place the exhausts on the bike.
but it will be fun

[husaberg]

Just saying
From memory Alfred Scott invented the Kickstarter
with 700cc you can giveaway a few HP

[F5 Dave]

it will be complicated to place the exhausts on the bike.
but it will be fun

Well if you style the bike as a Cruiser cornering clearance can be used to house the pipes.

Hello? Hello? I seem to have been cut off?

[speedpro]

I 2nd the comment about shifting. The Zs were horrible. Yamaha bikes of a similar vintage were heaps better and my GSX11 was simply the best. Other riders of that vintage bike were saying similar things, suzuki boxes were the best to use. The benefit of a Z was the straight cut primary gears. The helical cut primary gears on the Suzukis were rubbish but there are fixes for that which I'm sure Neil could sort easily. I seem to recall the Suzuki clutches were a bit less than optimal but later on with the Z clutch I did end up doing significant mods but the engine was pretty excessive on that.

[jato]

Re gearboxes, i believe inline fours with equal firing intervals give gearboxes a fairly easy life, with peak torque values only of whatever a 250 fourstroke can manage ( including inertia torque of 2 rising pistons at high revs ). if one of those gearboxes has a known weakness a powerful two stroke single/twin will soon find that weakness thanks to those new higher torque pulses.

[DoldGuy]

Are they free, or seriously cheap?
I only want two gearboxes, one for me and one for Wayne.
I kind of doubt anyone else would want a 700cc twin twostroke road bike engine.

Flettner, you might be surprised...

[Flettner]

Flettner, you might be surprised...

Ive shown the 700 twin to a number of aviation people, zero intetest, which surprises me as its not some pie in the sky digital solid model, its real, doing the business, in the air. With CNC programs/cut paths and casting patterns.
People say a lot but when it comes time to put cash down, its crickets.
Ill build a couple for me and Wayne, and we can see what happens from there.
Sounds negative I know, when did I become such a cranky old man?
NO, not a crusier F5.

[husaberg]

Ive shown the 700 twin to a number of aviation people, zero intetest, which surprises me as its not some pie in the sky digital solid model, its real, doing the business, in the air. With CNC programs/cut paths and casting patterns.
People say a lot but when it comes time to put cash down, its crickets.
Ill build a couple for me and Wayne, and we can see what happens from there.
Sounds negative I know, when did I become such a cranky old man?
NO, not a crusier F5.

[Brett S]

BRC is doing a 600 parallel twin project using the CBR600 gearbox.
They must be pretty confident the gearbox will handle the extra 2 stroke loads to be so far along with the project?
Hopefully their new cylinders suits a ktm base gasket mounting..

You may have to change primary drive ratio to clear the crank due to the 4 strokes having a tiny stroke?
This may suit your lower rpms anyway?