I have started drawing stuff up so that I have a model to work off. Nothing but the tires are actual dimensions. I am currently learning what I need to for the suspension geometry. once I have that set I can then start doing the calculations for the dimensions of the a arms springs etc.
I am tipping that I am just going to use 15 mm chrome molly tube but being that this will be a final year project I need to support my guesses with calculations.
I have a very long way to go before I actually get to the stage where i pick up a tool but it is all good.
Not having any hard ideas of things like reasonable weight speed, acceleration etc I have to make some very large guesses and then iterate until I get to where I want to be.
What I know.
Tube space frame chrome molly Including suspension a arms.
Wheels are Go Kart with 140mm diammeter inner rim and 300mm wide I will be using wet tires so I don't have an outer diammeter yet.
Engine I have been given a kt100j Go kart engine. the dyno puts it at 11 bhp at 8000 rpm with 11000 redline.
I want to make a gearbox so that i have reverse. I don't think I really need more than 1 forward gear but i am interested in maybe 3.
What I am guessing.
Weight. I am making my initial calculations based on a 45 KG car. I think I saw a comment somewhere here that 45 was way too heavy so I am happy to start there and reduce and re iterate as i get more accurate figures.
Anyway enough rambling. Here is a pic of the first draft solidworks model.
regards
Steve