I wrote a program for gear boxes, ratios, mph, tyre height etc

[Russ]

Hi,

With the chat about gear ratios and such past two days thought I'd write us our own little program.

I only did it today so haven't tested it greatly, and it only has some basic features. Can someone download it, test it, and tell me if its right? Apologies if it's wrong.

I know there are loads of these about but we can have our own branded one and it might get us some more traffic.

The program works by just entering the numbers, this is beta 1 so more features can be added later (with proper installer) and if you want the program to work differently let me know.

To run this you will need to be running the Microsoft .NET framework version 1.1, this is available HERE but if you are running any moderately modern version of windows and have ever run windows update (http://windowsupdate.microsoft.com <- you really should have by now) then you'll already have it. Just try running it to find out.

Anyway let me know if it's rubbish or not and what I should add next.

 

[Russ]

Here is a screenshot with 300zx details.

 

[Legendary5]

can't get it open, sorry running a modern version XP.

 

[Black Bug]

I'll download it in a mo and give it a whirl. In the meantime, today I bought a copy of CarTest 2000 for a whopping 20 quid.
http://www.cartestsoftware.com/cartest2000/index.html

This sucker is fun as it actually simulates a drag run!! What is interesting though is that changing the gearbox ratios really only make a difference of a few tenths of a second to the overall 1/4 mile time. What does make a difference is power - quel surprise!!

Lots of fun being able to change all the parameters, and do dump clutch starts or slip the clutch to save that knackered old drivetrain

Attached are a couple of screen shots of a stock 240Z run, although if someone can confirm the 240Z 5 speed ratios that would be handy, the ones I have are from evil Haynes manual!

Cheers,
Rob

 

[Gio]

Be interesting to see how it compares with this one http://www.geocities.com/z_design_studio/transmission_300zx_tt.html

(don't ask me, I'm no engineer - I only know which way round a soldering iron is by the smell of burning flesh when I pick one up )

 

[Black Bug]

Yup, that works Russ, the numbers also look kosher!

Cheers,
Rob

 

[Russ]

Lovely,

What features should I add tomorrow whilst at work?

 

[Russ]

can't get it open, sorry running a modern version XP.

Did you get an error message? Are you running the .Net framework? (I expect so).

 

[Black Bug]

Lovely,

What features should I add tomorrow whilst at work?

I'd say you need to at least get the speed/revs/gear graph in place. Makes it much easier to see how the gears are spaced, and of course looks fancy

Cheers,
Rob

 

[Legendary5]

Did you get an error message? Are you running the .Net framework? (I expect so).

I donwloaded the network... thought I had already
could you make this also in KM p/u?

 

[SeanDezart]

Downloaded the programme M soft, downloaded your programme, entered the figures but get no speeds ! And how do you calculate the power, obviously a factor against wind resistance ?

 

[Mr.G]

Impressive stuff Russ.

This Guy has also been doing something similar, have you guyz seen this? http://www.geocities.com/z_design_studio/transmission.html

And this little tyre size program is pretty nifty too: http://www.miata.net/garage/tirecalc.html

 

[Russ]

Version 0.1.5

George, thanks, I'll check them out sometime.

Sean, you need figures in diff ratio, wheel height and rpm for it to do anything, then you can add gear ratios. It should all be automagic.

Here is todays stab at a graph and kph. It runs fine on my laptop but seemed slow on this machine so apologies for any bugs, grab me a screen shot if you find one.

 

[Russ]

Screenshot

 

[Legendary5]

I’m sure this little help will beat them all…… from down under.
This is so funny to work with.. All right it has nothing to with gear boxes but still.

 

[SKiddell]

This is so funny to work with

Trouble is it lets you build impossible combinations

 

[Russ]

Yeh just been playing with that Have changed my engine plan now quite a bit.

Would like to do something like that, is there anything else I could include?

 

[SKiddell]

Yep have a crack at these calculations
http://www.ajdesigner.com/phphorsepower/horsepower_equation_trap_speed_method_horsepower.php
http://www.dsm.org/tools/calchp.htm

etc

Theres loads of them