ESE's works engine tuner

[bucketracer]

The Gazz... on a CB125T leads the FXR's home at Mt Wellington........Sun 15th.

[F5 Dave]

& this is relevant to a two stroke tuning thread, how?

[bucketracer]

I know its a bit of a stretch.....but like ours, its a home built-tuned-hotted-up bucket and it gives us hope we might get one of ours up there too one day soon.

[TZ350]

It worked on the 28mm carb (last 2 pictures), so now time to try sleeveing a 38mm carb back to 24mm and try it out on my new FZR/GP125.

The benefit of sleeveing a carb back is that it moves the constricted 24mm high velocity area away from the metering section. As the metering section is very disruptive to air flow it makes sense to have the metering section as large as practical.

Also having the 24mm part after the metering section helps with fuel atomization. As air/fuel mixture passes through the high velocity area the fuel droplets literally explode as their vapor pressure becomes much greater than the surrounding region of low pressure in the 24mm venture.

Can a 38-24 combo work as a high flow good atomizing carb or will the signal strength at the metering jet be to low to work????? who knows, but we will find out in due course...........

Bets anyone??????

[TZ350]

On the GP the 38-24 was just physically to big to be usable before, and try out before as it stuck out the side way to far for the skinny GP frame but looks like it will be OK with the wider FZR chassis and there will certainly be enough room on the front of the plenum for it.

[Bert]

Can a 38-24 combo work as a high flow good atomizing carb or will the signal strength at the metering jet be to low to work????? who knows, but we will find out in due course...........

Bets anyone??????

Looks good but you might be right about the metering; one thought, can you off set the vortex closer to the base of the carb. This might help sensitivity at low to mid range. as it stands now i can't see why it wouldn't work fine wide open, but it might lean out
injection could be in order!
http://www.smcomp.com/~smurph/RZ-EFI/index.html

people were talking about water cooling and pumping a while back, maybe this could provide a solution (cheap as chips):
http://xminimoto.co.nz/shop/index.ph...products_id=48

[bucketracer]

The rules quite clearly set an overall capacity limit, if you have two motors regardless of whether one is driving a supercharger or not you will be over it, unless of course both motors total less than 100cc

Ok...... so does this electric supercharger meet the rules then.

http://www.trademe.co.nz/Trade-Me-Mo...-135307534.htm

They do not say the supercharger has to be driven by the motorcycles own motor, what if it was driven by a rubber band or an electric motor or a turbo charger fired by LPG, or an external heat engine like a sterling engine or from a big bottle of compressed air or nitrous oxide, or off the rear wheel or by the rider peddling a bicycle crank or blown with an old forge bellows operated by the rider vigorously clenching their butt cheeks together. There are so many possibilities.
An internal heat engine, what makes that different to the other ways of spinning the supercharger?

Nothing in the rules says you can't take another engine along for the ride.......electric engine.......or......heat engine.........for driving the supercharger, whats the difference.......so long as there is only 99cc of 4-stroke driving the bike.

[Kickaha]

......so long as there is only 99cc of 4-stroke driving the bike.

Doesn't matter if the supercharger is electric or run off a hamster wheel

So long as there is 99cc total , the capacity limits make no mention of what is driving the bike just an overall cc limit for the machine

[Henk]

I'd say that on a 100 that would be legal. Probably completely useless, but legal.

[Kickaha]

Probably completely useless, but legal.

I don't think there's any probably about it

[bucketracer]

I don't think there's any probably about it

Probably right, have you seen the current draw????? if it wasn't useless it soon would be, a battery wouldn't last long.

[Henk]

Personaly I think team ESE should try one. Has to be safer than a plenum with half a liter of unleaded sloshing around in it.

[SS90]

I don't think there's any probably about it

Warwick, don't be such a Ney sayer...... The chromed plastic body would add PS on it's own.

Fark, I was hoping that thing would find it's way onto a plenum.

[SS90]

Probably right, have you seen the current draw????? if it wasn't useless it soon would be, a battery wouldn't last long.

No No Bucketracer, you could wire a voltage regulator in.... forget about the battery, and just run it form the AC generator.

It's way out of my experience, but if anyone can do it, team ESE can!

You can have the "magic vacuum cleaner", and the "definitely not gay Chrome hairdryer"

[SS90]

Personaly I think team ESE should try one. Has to be safer than a plenum with half a liter of unleaded sloshing around in it.

Or both together!

The electric supercharger could force the unused fuel that is sitting in the plenum into the crankcase!

What could possibly go wrong?