ESE's works engine tuner

[AndreasL]

"same size steps"

"starts at the freezing point of water and is 100 equal steps to the boiling point"

Yes, isn't it wonderful?!
Steps of tenth and hundreds. Art to the engineers brain.

And I did convert it before I posted. And yes, I use horsepower in favor of kW.

[adegnes]

I use Celsius most of the time myself. I like Fahrenheit's higher resolution on temp gauges, and most people I discuss engine stuff with use it.

[TZ350]

Yes, isn't it wonderful?! Steps of tenth and hundreds. Art to the engineers brain. And I did convert it before I posted. And yes, I use horsepower in favor of kW.

Agreed, I prefer horsepower too. Science and the natural world, it is all very interesting, just wish I had more time to explore it all .....

[peewee]

No, and no word either.

Reality, always spoils the fun.

i thought you were the guy was wipping them up ?

[TZ350]

I use Celsius most of the time myself. I like Fahrenheit's higher resolution on temp gauges, and most people I discuss engine stuff with use it.

I am currently installing a four channel data logger on my new bike, an aircooled 125cc 2T. It will be the first time I have collected any real temperature data, I hope I can get it to work properly because it will be very interesting to see what happens with the air cooled motor and how much we can improve the cooling with ducting.

[wobbly]

Dont mention wipping near Flett, he is one of those leather people,and as a secondary fetish has a CNC in his bedroom.
With no TV one has to keep amused at night.

[AndreasL]

Agreed, I prefer horsepower too. Science and the natural world, it is all very interesting, just wish I had more time to explore it all .....

Me to!

I am currently installing a four channel data logger on my new bike, an aircooled 125cc 2T. It will be the first time I have collected any real temperature data, I hope I can get it to work properly because it will be very interesting to see what happens with the air cooled motor and how much we can improve the cooling with ducting.

Very interesting! You can never have to much data.
I have the data logger used in one of the race cars I ran some years ago.
Some day I hope to fit it to the old moped to get a better picture of what's happening and to get better input data for EngMod. I'm looking forward to see the results.

What logger is it you have?

[wobbly]

Neels replied to my question ( along with the latest updates ) about what to look for to detect " overscavenging " as it relates to a too efficient pipe
mated to badly designed transfer ducts.
The problem is that the scavenging regime is pre defined, not simulated,thus does not change with a change in pipe design.
So we are stuck with having to build experience on this by testing in reality.
As an example I know that Erv Kanemoto tried 110mm pipes on a test TZ750 cylinder and lost power, no matter what configuration he tried.
And this was confirmed a few years later by Mike Sinclair, so in the case of a huge overbore with dead straight transfer ducts that have very little
directional control,that experience sheds some light on the physical limits.
Then there is the case of the CPI cylinders I have tested with 72mm bore on 58 stroke for the RZ/Banshee cases.
These have transfer ducts good as can be physically fitted into the cylinder confines of the studs, plus an extra set of ports ( making 8 including the 2 boost ports ).
But the teacup duct shape is absolutely minimal.
The pipes I could fit on the bike were 125 diameter, and the sim was absolutely accurate - predicting an almost perfect curve shape at 12% higher power than seen at the
rear wheel on a DynoJet.
In the sim, going fatter made very little difference to the power,why I dont know,maybe a combination of the Yam 6 poor scavenging and the STA limitations having a
greater effect than the pipes efficiency.

[ief]

Must be a way to fudge this Wob, lol

[AndreasL]

Thanks wobs.

Neels informed me about it to.

Guess I can play around with the belly diameter to see what happens.
At least I can learn something from it.

[1948rod]

hi i have a slight interest in the old yam. kt100s. would it be too imposing to ask wobbly if you would post the dimensions of the pipe you designed for the kts. so i could have a play for speedway racing. cheers.

[wobbly]

The KT100 pipe was designed to be used with a nozzle at the flange with a tapered header.
And the end cap was spun on a die that I made, but I havnt had any of these parts for several years now.
I havnt got a drawing as such but you can have the .dxf to have all the parts laser cut in 0.8mm CDS.
Now I find I cant upload a .dxf, so send me a PM with your email and I will forward the file.
Here is a pic of the finished pipe, the real trick is the backwards angles of the 3 cone diffuser and the progressive stagger
of the bleed holes in the internal rear cone.
This thing took months of dyno work to perfect, and I made over 2000 of them all exactly the same by hand - no other pipe ever came close to matching
the peak power or power band width so it won hundreds of titles here,in USA and England where open pipes were/are allowed.

[Yow Ling]

F = Fahrenheit converting F to C .... 1035F = 557C and 280F = 138C , plenty of converters on Google.

Kelvin and Celsius both have the same size steps, the difference is:-

Celsius starts at the freezing point of water and is 100 equal steps to the boiling point of water.

Kelvin starts at absolute zero and is 273K at the freezing point of water (yes, ice is hot compared to some things in the universe) and Kelvin is 373K at the boiling point of water.

So:- 1035F = 830K and 280F = 411K

You could have found out for your self, a quick Google would have given you the answer....... ​

So just what is wrong with the Farenheit scale 100*F = the temperature of deers blood and 0*F = the temperature of a slurry of ice and salt, makes perfect sense to me, then the French came along and appleid a complex algorithim to it to make this great 0 to 100 scale into a different 0 to 100 scale

[TZ350]

So just what is wrong with the Farenheit scale 100*F = the temperature of deers blood and 0*F = the temperature of a slurry of ice and salt, makes perfect sense to me.

The golden age of science and discovery ...... love it.



Demonstrating that living creatures need air by suffocating the pet budgie was a hoot too.

Then those boring ethics committees stepped in.

[TZ350]

Me to! Very interesting! You can never have to much data. I have the data logger used in one of the race cars I ran some years ago.

What logger is it you have?

Four channel K type thermocouple temperature probe amplifier and SD card data logger.



The amplifier with the green terminal strip is on the left and the data logger itself is on the right hand side. The det sensor box is just above it.

The tank is quite narrow so I can see and adjust them quite easily. They are glued to the frame with building adhesive. In wet weather I will tape a plastic box over them.

Keeping the wiring neat is becoming a challenge.