ESE's works engine tuner

[speedpro]

The motor in that chassis looks to be mounted a long way forward with a big distance between the sprocket and swingarm pivot and those mounting plates look like steel in that light.

That RGV(?) cylinder being fitted to the GP bottom end looks like a familiar project. I fitted an RGV cylinder to a converted full crankcase reed TS125 bottom end. The biggest bitch was sorting a waterpump. I fully endorse electric pumps now. Every single person I know who has ever converted a bucket to water cooling says the same thing.

[TZ350]

The biggest bitch was sorting a waterpump. I fully endorse electric pumps now. Every single person I know who has ever converted a bucket to water cooling says the same thing.

Yep this is where we expect to go. And I remember what you said about the transfers on the RGV250 cylinder of yours.

[TZ350]

.

One look at Fi5hys Bucket and you can see the empathise on handling and modest easy to ride power is all you need for a winner.

[NOID]

mmmmmmmmmmmmmmmmmmmm Fi5hy's bike ... i likey likey

[Buckets4Me]

I fully endorse electric pumps now.

sounds good but I think we should wire it up to a run switch (pump is running when ignition is on)

otherwise I will forget to turn it on garanteed

[TZ350]

sounds good but I think we should wire it up to a run switch (pump is running when ignition is on)

otherwise I will forget to turn it on garanteed

I was thinking of a thermosiphon set up supplemented with an electric pump activated by a thermal switch on the head thats wired in series with the engine Run switch like you suggested.

[Kickaha]

I was thinking of a thermosiphon set up supplemented with an electric pump activated by a thermal switch on the head thats wired in series with the engine Run switch.

Davies Craig have all you need, Diesel Pig used one of these on a Bucket he built, he tried thermosyphon and it didn't work well enough

[TZ350]

.

I was looking at an Aprilia 125 cylinder today and was struck by how much effort they went to to cool the exhaust port tract.

Looks like the water enters under the exhaust port and flows up and around it slowly through some restriction holes so it gets plenty of time to take heat from the exhaust stub.

I have always thought cooling around this area is important and it looks like Aprilia does too……….

[TZ350]

Davies Craig have all you need, Diesel Pig used one of these on a Bucket he built, he tried thermosyphon and it didn't work well enough

Thanks Kickaha for the link and tip on Diessl Pigs experiance with thermosyphon.......

[Buckets4Me]

http://www.daviescraig.com.au/Electr...2-details.aspx
could you leave the charging system on the bike to run the pump ???

and at $132 it's not a bad price (ausie dollars)

Technical Specifications
Motor 12V Brushless
Operating Voltage 9V DC to 15V DC
Maximum Current 1.3 Amps
Flowrate @ 10 kpa 15 L/min. (4 US gal/min)
Operating Temperature -40 to 120 DegC
Pump Design Recirculating Centrifugal
Motor Life 15000 hours at 80 DegC
Pump Weight 245 grams (0.54 lb)
Pump Material Nylon 66, 30% Glass Filled
Burst Pressure 250 Kpa (36psi) Min.
Fits Hose Sizes 19mm (3/4 ins)

Davies, Craig Pty Ltd
77 Taras Ave.
Altona North VIC 3025 Australia
Tel: +61 (0)3 9369 1234, Fax: +61 (0)3 9369 3456
Email: dcfans@daviescraig.com.au
Web: www.daviescraig.com.au


hows that for a free plug

[TZ350]

.

Thanks for posting that, I was at a loss before wondering what to do for a pump.

The new ignitions we have require 12v from a battery and a pickup trigger on the flywheel.

I am thinking of rewinding the old HV charging coils on our KX80 ignitions for 12v so as to have a charging system to run the water pump and re charge the battery for the programmable CDI ignition.

[koba]

.

I was looking at an Aprilia 125 cylinder today and was struck by how much effort they went to to cool the exhaust port tract.

Looks like the water enters under the exhaust port and flows up and around it slowly through some restriction holes so it gets plenty of time to take heat from the exhaust stub.

I have always thought cooling around this area is important and it looks like Aprilia does too……….

RG150s have a water passage running though the exhaust bridge, I thought that was worth taking note of.

[TZ350]

RG150s have a water passage running though the exhaust bridge.

Thanks, I didn't know that.....

[TZ350]

The motor in that chassis looks to be mounted a long way forward with a big distance between the sprocket and swingarm pivot and those mounting plates look like steel in that light.

Yes, steel engine plates this time, we are still smarting from having an engine mount break at the BOB.

The original FZR250 sprocket was 17 teeth, the new bucket sprockets are smaller in diameter at 12-13-14 teeth.

As well as putting more weight on the front wheel, the motor has been moved forward so the smaller sprockets don't drag the chain over the swingarm pivot. And with the rider aboard we are looking for a 50/50 weight bias.

The chain run was checked at the extreme ends of suspension travel and the chain now just clears the swing arm when its in any position. Any chain tension problems will be delt with using a chain tensioner like on MX bikes.

And its all been hand done in the Bucket Racer tradition. A big hats-off to Chambers for sorting all this out and making the engine plates using only very basic tools.

[Bert]

RG150s have a water passage running though the exhaust bridge, I thought that was worth taking note of.

As does my yamaha, RGV and KTMs (to a point, depended on design), I would think that it is mostly to do with the power values and making some attempt to reduce thermal expansion on the barrel casings and the potential for binding the power values up...?

2 cents worth