Yamaha KT100

[Matthew McLean]

Lauzzzn we're not looking for an engine with great power otherwise we'd just make a jet kart. We want this class because it's a category that many people race in Japan, America, Australia and New Zealand. Japan, Australia and New Zealand use without clutch. There is the option of running with clutch but there is a significant power loss.

[Racehard]

again, our family kart shop is dyno-ing (i dont know how to say that haha) well putting the kt100 J's and S's on the dyno weekly, some weeks every day, i need to know where you want the sound from, what is a good device to use (like my iphone?) in a closed room, out in the open, near the exhaust, give me what you need and i can give it, I can also provide like 50 dyno sheets if needed, but i will ask for a base out of the box dyno run for you

Awesome

[EVO]

Ill make both types. Each will have advantages and disadvantages

[EVO]

The design of the twin disc horstman dry clutches we use here lockup in the powerband so they have more pull but the problem is they slip eventually. The difference in the karts will be better low range for clutch, equal mid range, and better top end for the direct drive

[Matthew McLean]

Okay sounds good. How long do you think this project will take?

[oppolo]

Ill make both types. Each will have advantages and disadvantages

good! thanks for the new 2 karts, have a good work without hurry

[EVO]

can some one take a picture of the top of thier engine without the spark cable on. must be perfect.

[Nathan Dunnett]

Ahh, I could have taken a bunch of photos of a bare S and J yesterday but I totally forgot.

[oppolo]

it's some days I'm thinking about how modified the torque curve of an engine, Piboso told the tools for edit the engines is not still ready, how can you make a new engine? where are the RPM here? what's first and second values? what's the meaning of "brake"?

id = i f100
torque
{
   numpoints = 16
   point0 = 0.763889, 0.153375
   point1 = 33.611111, 6.978528
   point2 = 67.986115, 8.991564
   point3 = 116.875000, 11.886503
   point4 = 133.680557, 13.036810
   point5 = 150.486115, 13.899541
   point6 = 167.291672, 17.350460
   point7 = 182.569443, 19.075920
   point8 = 200.138901, 20.130367
   point9 = 219.236115, 18.788343
   point10 = 234.166672, 17.542177
   point11 = 265.833344, 13.707823
   point12 = 300.000000, 10.640338
   point13 = 334.166656, 6.518405
   point14 = 367.500000, 0.766872
   point15 = 398.333313, -0.191718
}
brake
{
   numpoints = 7
   point0 = 1.111111, -0.191718
   point1 = 32.847221, -1.763803
   point2 = 66.458336, -2.607360
   point3 = 116.875000, -4.294479
   point4 = 134.444443, -5.904907
   point5 = 200.138901, -8.512270
   point6 = 362.847229, -10.199386
}

[Nathan Dunnett]

My guess:

- First number is engine speed in revolutions per second, or RPM / 60
- Second number is torque in ft/lbs
- Brake means engine braking, ie. the amount of torque it produces with no throttle, should decrease with more revs as a negative number

Set whatever points you have data for and the engine model will interpolate between them in game to smooth it out. Hopefully PiBoSo can correct me if I'm wrong.

[PiBoSo]

My guess:

- First number is engine speed in revolutions per second, or RPM / 60
- Second number is torque in ft/lbs
- Brake means engine braking, ie. the amount of torque it produces with no throttle, should decrease with more revs as a negative number

Set whatever points you have data for and the engine model will interpolate between them in game to smooth it out. Hopefully PiBoSo can correct me if I'm wrong.

Correct, except that torque is in N/m

[EVO]

Hey moderator can you copy the last two the engine thread. Its more important there. Ill post a progress pic tonight. Just model at the moment

[Sam]

evo if you enjoy this project may u please make the j motor thankyou

[EVO]

i need the resources and even with this popular engine im not getting much

[jd88x89]

i need the resources and even with this popular engine im not getting much

Here's the top w/o the plug (my spare engine). Im sorry i havent been around to help as much, its just me and my stuff are @ the WKA  Man. Cup Nationals. Im sorry i cant help as much as i want too. Everyone, just be patient!!! In about a week i'll b able to devote time to help EVO. So Now, I hope this just proves im trying to help. Only things that this pic is missing is the clutch, motor mount and third bearing. I will get that stuff soon!! i promise. Plz tell me if u need anymore specifics.

http://www.mediafire.com/?bt4lmdvhu7ouc1f