Algodoo

That's funny, because I made an engine (not uploaded to Algobox) which has loads of power and is stable in a car, but I can't get the gearbox to work properly with it.
I can't get the right ratios, and I tried everything from large to small ratios.

One time it worked correctly and I got to 17 m/s (it's one of my first cars and my fastest yet), but when I try it with an more efficient gearbox (with lower ratios) it loses it's power when I change to a higher gear (which it could handle perfectly with the previous gearbox) and the speed decreases.

I don't have a power problem, because it can do a hill start on a 19 degree hill.
And it can easily tow 1000 kg to a top speed of 15 m/s (0-10 m/s in less than 15 seconds).

So, does someone know how to make the perfect gearbox?
Or at least a gearbox that does work?

And does someone know how to calculate the power of an engine in Nm or HP?
Because I really want to know how powerfull my engine really is.

Let's see:
For the gearbox, try to make the ratios a little bit bigger, so they can engage properly. Make them of restitution 0 and if it's made of hinges, disengage the previous gear first!
I'd like to see the gearbox, to explore the problem.

I'll upload my car to Algobox soon, so you can see it.

Ok.

Because the other scene doesn't allow comments , I'll give my response on this scene.

The gearbox tweaks are awesome, it runs much faster now (I got to 33 m/s, which is about 118 km/h).
But even the turbo mode (5) can't get it to go faster than 33 m/s.

I was thinking about putting a 4th gear on it, because now it works.
But looking at the maximum speed I can get to and the rpm the engine is running at at that speed, a 4th gear won't make much difference.
The gear ratio would be so big that the smaller circle would go wild and crazy at higher speeds.
To solve this you have to scale up the gearbox, which requires more torque to power (which of course I don't have ... yet).
So, a 4th gear is in my eyes not possible/needed.

Thanks for helping, 118 km/h is a lot in my eyes.
I know it is possible with a lot of tweaks to make it go faster, but I'll think about that first. Because I think it won't be just 3 tweaks, but a lot (the engine, gearbox, frame, wheels, stopping the jumping and all the other important stuff).

It's awesome to see my small (still ugly) car go like 125 or 130 km/h (or even 160 km/h), like a real car.
But I don't think that's possible, even if I gave the engine more torque.
It's awesome, but also a lot of work.

So, thanks again for your help.
I really appreciate it.

EDIT:
Where is the "scene.my.speedMode" for?
I know it's for the gearbox, but what in the gearbox?

Banjerboef:
Sorry by that comment block, when you update a scene from the Algodoo browser, everything gets blocked (comments, ratings and responses I think.)

So, getting in the topic:
Maybe a fourth gear should make it smoother, making the 4th gear radius the same as the 3rd, and scaling down all the other.
I will still work on it, let's see how much fast it can go!

Oh, and I've allowed cooments on the other scene.
UPD: Forgot to say: scene.my.speedMode works for the output hinge of the gearbox; so when you put 3rd gear, legacyMode gets to 0, making the hinge weaker but resistant to high speeds. Maybe that way it doesn't jump from there.

What if I told you, the engine is both strong and fast, but your gearbox can't handle the torque..