Shape ideas

[Grijze Pilion]

Avro RJ85 on the football pitch... 

I'd love to see that one

[CTG]

Plan for 2013: 'Best of Communism' car pack.

Ready: Ikarus 260

Shape is ready: Lada 2105, Lada Niva

Blueprint already downloaded: Skoda 120

Other applicants: Trabant 601 (obligatory! ), Barkas (van), Zaporozhets 968, Kamaz (truck), Polski Fiat 126 and many others...

[CTG]

I hope it's more like a Niva than a Panda...

[Friker]

I want to see Skoda 120 made for racing ("skoda 120 s" was the name) according to owner the only skoda 120 s in Slovakia left: http://www.youtube.com/watch?v=k0meWme2F0M vrrm vrrrrm! http://www.youtube.com/watch?v=DE6fl_wRmfI

or "default" skoda 120 tuned for rally racing? http://www.youtube.com/watch?v=SkkaC7hujwQ (150 km/h at the finish line)

[CTG]

I want to see Skoda 120 made for racing ("skoda 120 s" was the name) according to owner the only skoda 120 s in Slovakia left: http://www.youtube.com/watch?v=k0meWme2F0M vrrm vrrrrm! http://www.youtube.com/watch?v=DE6fl_wRmfI

or "default" skoda 120 tuned for rally racing? http://www.youtube.com/watch?v=SkkaC7hujwQ (150 km/h at the finish line)

It will be a "default" Skoda 120, but as far as I remember it's real top speed was almost 180 km/h (or at least my uncle - owning Skoda 120 in the late 80's and early 90's - declared ~170 km/h personal speed record). Btw it's one of my favorite cars from the communist era (the other one is VAZ 2105, a.k.a. "Cube Lada").

However, if the dashboard + 3D shape is ready, tuning is only a piece of cake, thanks to Duplode's detailed description at Stunts Wiki.

[CTG]

Skoda 120 shape is more or less ready (pictures: soon).

[Friker]

Skoda 120 shape is more or less ready (pictures: soon).

Yahooo Yuppieeeeee Yeeaah

[CTG]

Skoda 120 shape is more or less ready (pictures: soon).

Yahooo Yuppieeeeee Yeeaah

I'm not really satisfied with it (the blueprint was quite wrong), so it's only a raw version.

I just realized that it's not a Skoda 120.

[Friker]

Skoda 120 shape is more or less ready (pictures: soon).

Yahooo Yuppieeeeee Yeeaah

I'm not really satisfied with it (the blueprint was quite wrong), so it's only a raw version.

I just realized that it's not a Skoda 120.

it reminds me of Favorit model.

[CTG]

Skoda 120 shape is more or less ready (pictures: soon).

Yahooo Yuppieeeeee Yeeaah

I'm not really satisfied with it (the blueprint was quite wrong), so it's only a raw version.

I just realized that it's not a Skoda 120.

it reminds me of Favorit model.

Then it's really awful.

What I wanted to build:



What you see in that is:

[CTG]

However, the game view seems to be a bit better (but still far from a good one).

[CTG]

Useless data: the best engine for Skoda 120L is 58 hp "strong"!

Duplode: how do you calculate the 'estimated performance' for wiki articles? (probably you published the formula somewhere but it's easier to ask).

[Friker]

Useless data: the best engine for Skoda 120L is 58 hp "strong"!

Duplode: how do you calculate the 'estimated performance' for wiki articles? (probably you published the formula somewhere but it's easier to ask).

Also the max speed 180 km/h is about 110 mph -> barely enough to jump 1 tile.

[CTG]

barely enough to jump 1 tile.

Unless it is too heavy or has too big air resistance. But it's not that case, since Skoda 120 is only ~20 smu (~900 kg).

[Duplode]

Duplode: how do you calculate the 'estimated performance' for wiki articles? (probably you published the formula somewhere but it's easier to ask).

If you mean the "Max horsepower (est.)" field: my original intention was to calculate the peak power from the actual CarBlaster data, but that got lost somewhere along the way; most values currently on the Wiki are merely copied from the car description text (Skyline is likely the only exception, given that the relevant calculations were used in the tuning process). Maybe it would be a good idea to update them to the "real" values, as the performance stats are based on actual tests and not on what it says on the tin. Anyway, here is how you I would do the calculations...

The key equation here, without units, is:

power = torque * rpm

Finding the peak power, then, means looking at the CarBlaster values and finding where the product of the position in the torque curve and the torque value is maximum. Taking the Skyline as an example, that would be at the 60th point of the curve, where the value is 41. From there, it is just doing the unit conversions, guided by the information at http://wiki.stunts.hu/index.php/Car_model_physics :

peak power = (torque curve position at power peak) * (CarBlaster torque value at power peak) * 128 * (2 * pi / 60) * 4  * (1 / 0.85) * (1 / 550)

The factors are:

128: 1 byte in the torque curve = 128rpm
(2 * pi / 60): converting from rpm to (1/s)
4: converting from torque values in CarBlaster to (lbf*ft)
(1 / 0.85): correction to the torque to account for mechanincal losses in the transmission.
(1 / 550): from the defintion of horsepower (1hp = 550 lbf*ft/s)

Note that the factor of 4 for the torque only makes sense if the car mass was defined according to the conversion suggested in "Car model physics" (1 CarBlaster unit = 103.375lb = 46.8901kg). If you used a different factor for the mass you should scale the result accordingly. Also, the (1 / 0.85) correction is, as you might have guessed, quite arbitrary.

Multiplying all the factors, the equation boils down to:

peak power = (tq. curve position @ power peak) * (CarBlaster tq. @ power peak) / 8.72

Applying that to the Skyline, we get:

peak power = 60 * 41 / 8.72 ~= 282hp