osdecar
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| posted on 18/7/13 at 05:31 PM |
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Suspension made from scratch, opinions?
Hi everyone!
I am designing my own trackday car from scratch. I am now designing the suspension geometry.
I have read several books about this topic, and I know more or lees how it works everything. But I am still lost when it goes from pure theory to
reality and real numbers. I have no idea if this numbers are good or bad. And I ask you for some help.
I want to design something similar to a Radical PR6, and it will be just for
tracks, no street.
So, here I show you a few pics and data so you can guide me.
This is the front view of the suspension (I am still calculating the side view and the "anti" features):
These are the main properties of the front view:
Camber Angle (deg): -2.50
Kingpin Angle (deg): 6.20
Kingpin Offset/Scrub Radius (mm): 34.00
ROLL CENTRE HEIGHT (mm): 20.14
GENERAL TIRE DATA
TYRE ROLLING RADIUS (mm): 292.10
WHEELBASE (mm): 1600.00
RUN DETAILS
BUMP TRAVEL (mm): 30.00
REBOUND TRAVEL (mm): 30.00
ROLL ANGLE (deg): 2.00
This is the roll center height due to suspension travel (positive x values mean bump, and negative mean drop):
This is the camber due to suspension travel (again positive x mean bump):
And this is the camber due to roll (now there is one graph for each wheel, but one is exactly the opposite of the other)
I can plot a graph for almost any measure you can imagine, so just tell me if you need anything more.
P.S: English is not my native language, sorry for the mistakes and please ask me for anything you don't understand!
Thank you in advice.
osdecar
[Edited on 18/7/13 by osdecar]
[Edited on 18/7/13 by osdecar]
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Angel Acevedo
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| posted on 20/7/13 at 04:39 AM |
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Provided your Hub is already selected and you have to use them, the following points will be addressed if it were mine:
- Raise Inner Pivots for Lower Arm so Lower Arm is Level @ Ride Height.
- Put Swing Arm Pivots in Chassis in Line with Track Rod Pivots.
- You show Shocks separate from Springs, Coilovers simplify installation, So I would use that (As most of us do)...
I know someone will see things I don´t...
HTH.
AA
Beware of what you wish.. for it may come true....
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