ESE's works engine tuner

[TZ350]

Cully and Ellie at Tokoroa 2nd in the New Zealand Miniature RR Sidecar GP.

Guess what exciting CVT project Team ESE have on the dyno ......

Its our first experience with setting up CVT's, very interesting system to work with. So easy, we are looking to make a F4 bike now with CVT.

We have a few spare Suzuki V100 two stroke power units to salvage for CVT parts.

Now Ok where did I leave that spare RS125 NX4 rolling chassis and the 32hp NSR/GP110 engine ....... a bit of work with a hacksaw and tig welder, marry a few parts up and we should have something interesting for next season.

[lodgernz]

Cully and Ellie at Tokoroa 2nd in the New Zealand Miniature RR Sidecar GP.

Guess what exciting CVT project Team ESE have on the dyno ......

Its our first experience with setting up CVT's, very interesting system to work with. So easy, we are looking to make a F4 bike now with CVT.

We have a few spare Suzuki V100 two stroke power units to salvage for CVT parts.

Now Ok where did I leave that spare RS125 NX4 rolling chassis and the 32hp NSR/GP110 engine ....... a bit of work with a hacksaw and tig welder, marry a few parts up and we should have something interesting for next season.

Wasn't Cotswold developing a CVT bucket using an SX50 or 50SX?

[Michael Moore]

You may find the Aaen Performance guide to "clutch"/CVT tuning to be of use

http://www.aaenperformance.com/Handbooks.asp

[TZ350]

Wasn't Cotswold developing a CVT bucket using an SX50 or 50SX?

Yes ..... it should be interesting.

You may find the Aaen Performance guide to "clutch"/CVT tuning to be of use

http://www.aaenperformance.com/Handbooks.asp

Thanks.

[JanBros]

totaly off-topic, but I just wanted to share : my new twin shock linked progressive suspension needed something like this because normal moped suspension isn't suited for jumps and we already bent 3 frames leftwards-up (shock bottoms-out , force transmitted to the frame only on the left side) because of crap riders who think they can jump





made a right-side swing-arm and put a softer springed shock on the left in series with a harder springed shock on the right through 2 arms and an axle that can turn. length of the arms determines the hardness of the spring as they are compressed from both sides : first the hard one acts as a push-rod, compressing the soft one also from above, and when that one is bottomed out, the soft one acts as the push rod and the hard one is compressed from both sides.

[wobbly]

Dead cool, so as the lever angles change ytou get geometric rising rate along with the spring rising rate.

[Grumph]

Personally, I like the cable tie bead locks...

This sort of activity is best done with hire scooters.

After one well-known episode here, several were handed back folded up like pocket knives.

[JanBros]

Dead cool, so as the lever angles change ytou get geometric rising rate along with the spring rising rate.

didn't do the math if that is realy true, I'm already very happy that now I have a hard spring that can handle jumps and a softer that keeps my wheel on the ground and gives me better traction everywhere else.

I can play with different springs, pre-load, length of the arms and can even make axles with different angles. That should be enough to find a good set-up

[TZ350]

I just wanted to share : my new twin shock linked progressive suspension

Very clever suspension, I love it and "Powered by Imagination" I love that too.

[Mike Fisher]

This Red Rocket Honda CR250 was built Andy Bondio for John Kocinski, he holds the lap record at Perris, Ca. short track on it. Its special, all Ti & carbon fibre, 156bs (71kg), apparently single speed gearbox (to save weight?). The shroud seems to cover the whole air cooled top end so is not just to protect the rider's knee so must be for cooling. I'm interested in the shape of the expansion chamber, the step in the divergent cone appears to be very steep, any opinions?

[wobbly]

No technical reasoning behind the super steep last divergent section at all.
The pipe would have made better power if the preceeding cone was extended at a steeper angle all the way up to the
mid section.
Its got a very shallow rear cone as well, probably trying to smooth out the wierd torque dips created by the diffuser.

[190mech]

Could be a "CTC" pipe(confuse the competition) and the actual pipe lies within the BS external skin..

[F5 Dave]

Could be big change in colouring at that intersection. However change in temp too. Can you imagine anyone obsessed with a seriously light bike being able to bring themselves to putting 1/3kg of pipe covering over?

[husaberg]

This Red Rocket Honda CR250 was built Andy Bondio for John Kocinski, he holds the lap record at Perris, Ca. short track on it. Its special, all Ti & carbon fibre, 156bs (71kg), apparently single speed gearbox (to save weight?). The shroud seems to cover the whole air cooled top end so is not just to protect the rider's knee so must be for cooling. I'm interested in the shape of the expansion chamber, the step in the divergent cone appears to be very steep, any opinions?

The engine a early 80's air cooled Cr250 hence the air cooling about 80-82 I would say.

Lil jon was quick on the dirt as fast as Kenny Eddie and Wayne maybe faster as they had a play to slow it down his XR100 back when he was racing for Kenny.
According to legend He used to clean his gear with a toothbrush.

[peewee]

well not nearly as much progress as I hoped but its still going. outer shells are tacked on and the end caps are fitted and ready to weld when I get a moment. the mini torch should work a treat for the end caps. included a photo to show how ill do it. was giving some consideration of cutting oval water ports to cool down the exh spigot face like wobbly has mentioned but I wonder if there would be any trouble with water leaks at the spigot/cylinder junction