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Bumps are for Baja and NASCAR.

For single cylinder applications, especially with respect to the rules, your bigger focus should be on the pulsed flow effect across the turbine of the turbo.
My personal opinion is that at GT06...

Watch your A/F monitor as you rev and un-rev the monitor. Does it show anything very rich or lean on rev?
Is there a chance you are losing crank sync loss on rev? Note: This is common with...

I don't enjoy when the minimum turn radius is used. It's not fun to drive, it's not fun to watch, and the only people who like it are those who want to throw a "gotcha" out there just to make sure...

I would see it as non-issue unless you can produce a measured result showing a significant difference it makes in terms of vehicle set-up or design.
Would this effect cause you have a different...

This reminds me of all of the threads asking about the negative aero effect of engine exhaust tips pointing forward.


vishnumohan95, I think this may be a non-issue. How many kW of power does you...

I certainly have seen the internals, and I understand, it's just not the same as a rack. There really isn't a lot of reverse efficiency inherent to the design either. Almost every single part of...

Off topic, but I'm still surprised at how much "wind up" is considered acceptable in the steering system with these cars under load.
If you clamp the wheels or hubs in place and try to steer the...

The Pacejka model isn't the end all, be all either. GM and older Pratt and Miller fits use piece-wise functions to fit the tire characteristics.
Those work really well too as the tire steady state...

Some serious rear weight distribution you've got there, Bill.

Nils,

Start small.


In reality, the Pacejka model you are trying to wield is a sophisticated, expansive, and sensitive set of equations.
If you don't understand the factor of influence of...

To finish first, first you must finish.

Adding composites does not fix problems, only creates more. Only well established engineering and manufacturing techniques can tame those problems to turn...

https://www.youtube.com/watch?v=opLhzkTu0wg

If these are added, add 4wd IC car. You'll like what you see.

Downforce > all. The power is just there to get you from one corner to the next.

Yep, those ones. Usually the slop is from the recirculating ball box or loose U joints.

The point I'm looking for.
It's been done with several production vehicles and it is not uncommon for industrial vehicles to phase the steering shaft to lower the on-center steering effort.

For driveshafts...absolutely, otherwise vibration is guaranteed and failure is more likely.

However, why is this considered a problem that steering is not absolutely linear?

They are very popular with the top level national racers when they have a spare moment to do so.
They are also very popular with drivers trying to advance into sprint cars as they handle very...

Charles,

On a similar note, the simplicity, speed, and insanity of Outlaw Karts have captured my heart recently.

https://www.youtube.com/watch?v=j8MBIK1V06cts

I'm sure there are several people who have downloaded and archived these personally over the years. Kettering should have a folder on their team computer somewhere with all of the program guides...

If you don't have any data acquisition at all....do not dispair! You still have some tricks at hand that you can use.

If you run skid pad at several radii increments you can use the vehicle time...

These discussions really belong in a different thread.
They miss the point the author was trying to reach.

Looks like everyone came in here to pay the troll toll...
More rear % is really just missing the point, don't let him distract you.
There are better ways to go about accelerating a car.

...

Build the car, stand in it, jump up and down to jounce it (with a calibrated 80kg human). If the car bottoms out before the limit of travel it is too low, if it does not, it is too high.

57mm is...

There are two types of people in this world -- those who extrapolate from incomplete data.