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Roll center calculator


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#1 clarkspeed

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Posted 3 weeks ago

I uploaded a simple roll center calculator for a S30 in the uploads section.

 

http://forums.hybrid...-rc-calculator/

 

I developed it because I like to set up my suspensions using the control arm angles.  Fast and easy.  If you need more info on what a RC is or does, there is large amount of info on the web.

 

There is also plenty of debate on this forum on where you should set the RC and I wish I could tell you the best place.  But when suspension tuning everything is a compromise and "best" is usually a combination of things, depends on your goals, and will change from car to car. 


S30 Motorsports: Restoring, building, and racing vintage cars.  Current projects: 71 240Z CP Bob Leitzinger tribute vintage race car, 70 240Z partial tube frame IMSA GTU vintage race car, 60 Mini Cooper vintage race car.  "If you are under control you're going too slow" - Parnelli Jones


#2 260DET

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Posted 3 weeks ago

Good one, a starting point for roll centres would be rear at the bottom of the diff, front a bit lower so you can tip the car into a corner and roll will be manageable.



#3 TUME

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Posted 2 weeks ago

Just checked my calculations about roll-center(s). Seems like in my car r-c is ~65mm front and ~115mm rear. Should be decent compromice. Bit of a job to get those figures, with my "modified" suspension.


RS13 & HLS30 + A33  Arttu @ dnsf.org


#4 clarkspeed

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Posted A week ago

Glad it worked for you.

S30 Motorsports: Restoring, building, and racing vintage cars.  Current projects: 71 240Z CP Bob Leitzinger tribute vintage race car, 70 240Z partial tube frame IMSA GTU vintage race car, 60 Mini Cooper vintage race car.  "If you are under control you're going too slow" - Parnelli Jones


#5 jhm

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Posted A week ago

Very cool....thx, Clarkspeed!






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