sac02

I'm doing a project for a vehicle dynamics class modeling an s2k. Can anyone tell me a site that would have more in-depth specs for this car?

Things like center of mass height, inertias and efficiencies of drivetrain components, etc.

So far I can only find the "normal" specs - wheelbase, weight dist f/r, gear ratios, etc.

How about a dyno data for a stock engine? even just a graph would be helpfull

Thanks for any help you can give me!

Mac

edit:- haha, I just saw Rob_s2k's dyno immediately below my post

dmw16

Mass height? You mean the CG location along the vertical? That would be hard to find. Really all the things you want are difficult pieces of data to get without detailed 3d models (or at least good 3-views) of the car's components. You may be outta luck on this one.

YOu may be able to make some assumptions. If this is college level than I think some basic assumptions about efficiency would be fine.

sac02

yeah, I know it's a little more involved but I was hoping that maybe someone had done something like this already. It's not a big project or anything, but I'd like to have some numbers. Maybe I should cross post this in the racing forum, too.

Mac

Eric42

[QUOTE=sac02,Feb 11 2007, 12:41 PM]I
Things like center of mass height, inertias and efficiencies of drivetrain components, etc.

sac02

Yeah, I figured that was an option. I was hoping someone else out there had already done the legwork and could just tell me the answer.
Thanks for the reply,
Mac

RTZX9R

I learned in college (engineering) that these types of problems are 99% assumptions. Otherwise, you'll be there for months solving the items needed to start the problem alone.

Just set a set of realistic numbers and go from there.

GotRPMs

I am actually doing the exact same project for my vehicle dynamics class. Does any one know the inertias of the rotating components, or perhaps the diameter of them?

Destro

Being able to make a correct assumption is important, but you're going to find that getting the CG height wrong by not very much will really screw up weight transfer calculations (consider that it will be the same order of magnitude as the track).