Hi guys I am doing a little bit of research, and while I do not own an evo anymore, I came back here to ask the track experts (since I know the evo crowd does go to the track).

I am designing a model race track. (scale model) I want to know the technical reason for the existence of ripple strips / kerbs and how this affects their placement on a track. I want my model to make sense and what better way to understand they why and how.

Thanks,

 

They are there show the racing line around a track apex to apex and the point to aim at coming out of the corner they are also there to keep you from dipping and cutting corners.they are usually found on the inside of the turn and exit.

 

Thank you,

I was watching some youtube videos on DTM racing, and I noticed that all the car ride on the kerbs upon exiting a turn, why not just exit the corner without touching the outside kerbs / ripple strip ?

 

btw a kerb in not a ripple strip correct? (interchangeable terms)

 

You want to use every bit of the track you can. You want to make your turns as wide as possible so you can carry speed through the turn while keeping the car as straight as possible to exit the turn and accelerate.

 

^ ^ x2, play any gran turismo on expert and you will see you are faster around the track if you use the whole track

 

so i guess I m finally understanding the meaning of using the whole track.

 

Watch this to see how too use the track!!!P.S watch it in 720p and full screen-Awesome!!

http://www.amsracingblog.amsperforma...attack-finals/

 

riding the curb also unsettles the car, in some cases it allows the rear end to step out

 

^ yeah this why I didnt make sense to me at first that some drivers would exit into the ripple strips

 

except the step out helps get round the corner

 

Apex curbing you can climb because the inside tires are unloaded, so even if it is painted you won't slip. Heck, there are corners where the fast line for an AWD car has two wheels all the way in the dirt.

 

I think it is called Rumble Strips, ripple sounds girlish. .

 

It's a line thing, and as previous posters said, using the whole track. I think everyone summed up hitting the rumple strips quite well. Inside tires aren't loaded, so the car isn't disturbed much. Some of our tracks in Washington, (Portland Itn'l Raceway for example) the fast line on 10 is over the rumple strips, actually aiming for the dirt. To drive around them not only increases the circumference of the corner, but makes you have to turn sharper, so in effect making the radius smaller.

However in Seattle, 5A for example, if you even touch the rumple strip you'll go airborne on the driver's side of the car. This is bad, because it upsets the car balance mid apex, and depending on how it lands, I could see spinning from the front getting traction first when it settles.