ESE's works engine tuner

[speedpro]

Coils bought from here: https://www.efihardware.com/products...nbuilt-Igniter

Very helpful guys

[speedpro]

I had a problem with a CB360 I built in Oz. It wouldn't rev out. It had 12V total loss points ignition. I added a 6v battery in series and the problem went away. I ended up with another problem though - both pistons turned to rubble and fell into the bottom of the engine.

[adegnes]

I had a problem with a CB360 I built in Oz. It wouldn't rev out. It had 12V total loss points ignition. I added a 6v battery in series and the problem went away. I ended up with another problem though - both pistons turned to rubble and fell into the bottom of the engine.

This is kinda what I had in mind, Feed the coil say 16v from separate battery, 12v to the ignition unit from main battery.
Maybe the Spx is not reving out at 17500rpm...

[TZ350]

The Bad news .... a broken tooth which showed the classic signs of a fatigue crack ending in a fracture.

The Good news is that there is plenty of oil getting to the gears. No sign of damage that could be attributed to a lack of lubrication.




Case spacer and extra wide spacing between crank halves for a bit of extra crankcase volume.



Gearbox oiler tube and KE175 rotary valve cover.



NSR cylinder showing one of the fuel injector ports and rotary valve inner. Not much room left between the RV and gearbox input shaft.

The good thing about having to pull the motor down is that I am now very comfortable with gearbox oil feed of about 1L min from those small pumps is well and truly sufficient.

[DoldGuy]

I would very much like to know more, is this something I could make easily? are the parts simple, readily available?

TZ,

With your Fabrication skills I'm sure you could duplicate most of the components.

http://www.pingelonline.com/air-shif...ar-control.asp

[SwePatrick]

Finding a suitable gearbox oil pump has been a bit of a mission. Tried quite a selection of pumps, they all failed at some point or other. There have been vacuum diaphragm pumps, electric centrifugal pumps and plunger pumps. 12V garden feature water pumps, pressure diaphragms and fuel pumps. Mostly 1-3 l/min, 5 l/min seems ideal, inexpensive with low current draw is a must.

Look at toyota car gearbox, in some of those there´s an internal pump to circulate oil and in GT4´s circulate it into an radiator.

http://s227.photobucket.com/user/jes...31386.jpg.html

You can pull out the gear as it is married to the shaft, and replace the shaft with 'what ever you like'.

Rgds

[Lef16]

Well,it's a pleasure learning from you guys!
In drag racing we use sleeves intead of nicasil coating,and the piston to cylinder clearence is a little more than road racing or kart engines.
I assume with methanol I'll have to further increase clearence because of the higher comp and advance,and to shorten a little bit the pipe(?)
I think I'll shoot for the safe solution,little less horsepower but for longer with the the long and forgiving power band-power range.

Same situation here in my country's drag bikes with clearence but over here they use racing gasoline and not meth.
I've never build a drag bike but,have you ever try nicasil?Wouldnt it be less compression losses due to high clearence (for example they use clearences as high as 0.10mm in ~72mm bore here) and thus more power???

[2T Institute]

Thanks Frits
Did the riders report any difference in steering characteristics or were possible effects masked by differing weight distribution anyway.
Or was the compactness more to do with engine width?

first question I asked Sandro Cortese was "how much of an improvement was the RSA 125 over the RSW 125"

RSW was still a 'formidable bike when well set up"
RSA had more mid range and over rev.

RSA 125 was faster. With the 250 the RSA appeared to be considerably quicker with better handling. That said a RSW 250 you need to be over the front as far as possible pushing down on the bars as hard as you can before you pin it to the stops.

[husaberg]

first question I asked Sandro Cortese was "how much of an improvement was the RSA 125 over the RSW 125"

RSW was still a 'formidable bike when well set up"
RSA had more mid range and over rev.

RSA 125 was faster. With the 250 the RSA appeared to be considerably quicker with better handling. That said a RSW 250 you need to be over the front as far as possible pushing down on the bars as hard as you can before you pin it to the stops.

I seem to recall there was some talk of the 500 twin having a tungsten front axel, i don't know if its true or a urban leadgon.

[Grumph]

I seem to recall there was some talk of the 500 twin having a tunsten front axel, i don't know if its true or a urban leadgon.

Ask Kevin Grant - afaik he's got them all. 3 I believe - or at least enough bits to make 3....

[husaberg]

Ask Kevin Grant - afaik he's got them all. 3 I believe - or at least enough bits to make 3....

He still talks to and visits the old man occasionally, his ex works suzuki rider still owes me a clutch lever. I haven't totally given up on getting it back............
Thats why i always used to use an XR honda clutch perch and lever always plenty in a paddock or small local bike shop. I guess Kevin thought the same with the Manx.

[Frits Overmars]

I seem to recall there was some talk of the 500 twin having a tungsten front axel, i don't know if its true or a urban leadgon.

True; anything to stop the bike from wheelieing. What would have been next? Depleted uranium wheel? Water-filled front tire?

[husaberg]

True; anything to stop the bike from wheelieing. What would have been next? Depleted uranium wheel? Water-filled front tire?

Osmium
1 cubic meter (m3) of osmium
Equals: 22,590.00 kilograms
or about 10 times the mass density of average concrete.
or 3000kg /m3 heavier than tungsten
Not very cheap though. Plus a bit toxic and likely brittle. bound to be other numerous problems, Buts that R&D's issue. I work in the silly ideas department
Then again a frame designed for a 500 might have been a goood start, followed with an engine designed as a 500.
The honda NSR500V was a bit wheelie prone as well but I guess a bit more manageable.

[Frits Overmars]

Osmium. 1 cubic meter (m3) of osmium Equals: 22,590.00 kilograms or about 10 times the mass density of average concrete.

Don't talk to me about concrete; I just had lunch.

Not very cheap though. Plus a bit toxic and likely brittle. bound to be other numerous problems, Buts that R&D's issue. I work in the silly ideas department

Now you're being modest. I bet you're the Head of Department.

The honda NSR500V was a bit wheelie prone as well but I guess a bit more manageable.

A lot more manageable. The NSR500V riders I spoke to, all envied the speed of the Aprilia RSW500 but I bet that they would all be completely cured after one ride on it. 250 cc world champion Harada even bluntly refused to ride it after his first few outings. Only fearless Jeremy McWilliams seemed to enjoy wrestling with the beast.

[jamathi]

I seem to recall there was some talk of the 500 twin having a tungsten front axel, i don't know if its true or a urban leadgon.

It was one of the things they tried to keep the front wheel down.
Not a success...