ESE's works engine tuner

[bucketracer]

Looking to improve power by reducing crankcase temperature.......

With this copper/heat shield stack I hope to add extra cooling to the barrel and keep the heat from transferring to the crankcase for a cooler incoming air/fuel charge.

[bucketracer]

Copper has twice the thermal conductivity of aluminum.

So, very clever, the copper head gasket forms a cool squish area and extends out to be an extra high efficiency cooling fin..........

I think that if I can reduce the heat uptake of the exhaust into the cylinder and get the lower cylinder fin to run at less than 100 then the head will run less than 80 and that would be very good as I will be able to tune it closer to the power output of a water cooled motor.

[bucketracer]

Ducting cooling air to the head and barrel.............

ducting for cooling the head, we want 26 - 28 rwhp from this engine next year.

[bucketracer]

Finds some real info on port shapes and shares it with us............like he does with all the good stuff he finds on the net....

The main things that make more power, are, and in order of priority (1) the primary transfer tangental angle, (2) the inner transfer port radius, (3) the main transfer port axial inclination, (4) and main transfer port open size and shape. All high lighted in pic 2.

Get a copy of the paper from here:- http://www.2stroke-tuning.nl/media/pdfjes/porting.pdf .

[bucketracer]

Finds on the dyno that retarding the ignition extends the RPM of his bike about 500 and that Ignitech programmable ignitions could be the go......

What I would like is the fixed ignition curve to 10,500revs then have the retard kick in for over rev to 12,000.

[bucketracer]

Shows us how to improve the flow through a 24mm carb..................

[bucketracer]

TeeZee's clever plenum chamber ideas to get around the restriction of a 24mm carb................

………could this work? a 24mm carb feeding into a plenum chamber and the 34mm rotary valve inlet feeding directly from the chamber to the motor. That way the motor sucks full atmospheric pressure through a high flow 34mm bell-mouth and at WOT the restrictive 24mm carb has much more time to refill the plenum.

[bucketracer]

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And did it work?..................Yes Sir, it sure does...............and starts so easily too.......







ta da!

[bucketracer]

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Happy Birthday Dad.......We Love Your Work............

[bucketracer]

Some of the fast Buckets and Riders at Mt Welly......the team are looking forward to seeing you out there again and keeping them honest....

[Henk]

Wrong. You've got me in there and I'm far from fast.
The rest of them fair hook along though.

[TZ350]

Hi Henk, I have started getting my 50 together, with Thomas's help I should be ready for the next meet, how much do you need to do to get your 50 on the track?

I got the new slicks from Fi5hy, I figure that the F5 class should be real fun while I get the F4 ready for Taupo..........

[Henk]

Not a lot realy but with the trickery you have going on there you'll be battling for first while I'm strolling around in last.
My 50 is a bog stock MB.
Probably won't look at it this month since I'm a bit busy ayway and will be concentrating on putting the FXR motor back together in a way that it hopefully doesn't explode again.

[TZ350]

At the mo, there is only three F5 riders that regularly turn up and they are all fast guys. If no one else gets out there I will be riding around at the tail end all by myself.

[bucketracer]

Remember that guy who was building an electric bucket, well check this out, this electric job has some real punch...............



and then there is the old school sound of heavy metal...................



and then there is this one that sounds a lot like TeeZee's bucket...............