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  #21  
Unread 07-23-2013, 07:27 PM
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Quote:
Originally Posted by glassman View Post
Ron, thanks for taking the time to help edumicate us on these items. I know for one, i will be spending quite some time here over the next couple of weeks.

Handling is my favorite thing in a car or on a dirt bike, i know there two different animals, but some of the basic physics have some things in common.

Mike
That's for sure. If you want to discuss a topic, just post it up.

.
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  #22  
Unread 07-23-2013, 07:34 PM
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Originally Posted by badmatt View Post
Ron, Thank you for for starting this thread.

Can I get this thread in a leather back version that says Holy Bible by Ron Sutton on the front?

Matt
You're funny Matt.

I already have a kinda cool working title. Just can't say it until the trademark is done.

Leather? Then we'd want to put it on a book shelf. We need to keep it in the toolbox where it will get greasy when used.


.
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Ron Sutton

Ron Sutton Race Technology
Your One Stop, Turn & Go Fast, Car Building Resource Center for Autocross, Track, Road Racing & Triple Duty Pro-Touring Cars

Check out our 400 Page Car Building Catalog HERE

Features: Suspension, Chassis, Cages, Brakes, Rear Ends, Engines, Transmisssions, Aero & Much, Much More!
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  #23  
Unread 07-23-2013, 07:39 PM
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Quote:
Originally Posted by DaleTx View Post
Hi Ron, Sorry for the confusion on my question... Please start out with discussion on spring and sway rates for a baseline high travel/low roll suspension set up (new school), and then secondly discuss tuning the shocks.

Thanks!
Okie Dokie.

Would you post a few things for me ? .... and I'll be able to give you more real world information.

What rate or size are your front & rear sway bars?
Are you planning to stay on leaf springs?
What size are the front & rear tires ?
Have you changed things to improve the front end geometry? If yes, what?
Does the car handle neutral now? ... or does it have issues?
If it has issues ... briefly outline how it's handling.
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Ron Sutton

Ron Sutton Race Technology
Your One Stop, Turn & Go Fast, Car Building Resource Center for Autocross, Track, Road Racing & Triple Duty Pro-Touring Cars

Check out our 400 Page Car Building Catalog HERE

Features: Suspension, Chassis, Cages, Brakes, Rear Ends, Engines, Transmisssions, Aero & Much, Much More!
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  #24  
Unread 07-23-2013, 07:40 PM
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Quote:
Originally Posted by nicks67ca View Post
Wow lots to digest here. This is a great read thanks for sharing.
Thanks Nick,

Join in when you have questions.


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Ron Sutton

Ron Sutton Race Technology
Your One Stop, Turn & Go Fast, Car Building Resource Center for Autocross, Track, Road Racing & Triple Duty Pro-Touring Cars

Check out our 400 Page Car Building Catalog HERE

Features: Suspension, Chassis, Cages, Brakes, Rear Ends, Engines, Transmisssions, Aero & Much, Much More!
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  #25  
Unread 07-23-2013, 08:28 PM
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I have to say it again Ron, thanks so much from spending your valuable time with us. I am out at Bob Bonderunt's school at the moment. I will have heaps of questions when I get back to Australia.
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  #26  
Unread 07-23-2013, 08:34 PM
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Quote:
Originally Posted by Ron Sutton View Post
You're funny Matt.

I already have a kinda cool working title. Just can't say it until the trademark is done.

Leather? Then we'd want to put it on a book shelf. We need to keep it in the toolbox where it will get greasy when used.


.
Leather? More like carbon fiber with titanium hinges and piping. Maybe a touch of magnesium for old times sake.
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  #27  
Unread 07-23-2013, 09:05 PM
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Ron in SoCal Ron in SoCal is offline
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Ron I know spring and shock compression/rebound settings are car and (in some cases) driver dependant. Can you discuss in a general sense shock valving theory (high travel/low roll) for a road race/AutoX car and maybe work in how to read a shock dyno graph? Also, does an increase (i.e. higher rate) rebound and compression curve automatically dictate a stiffer spring?

Everytime I look at one of those graphs I see a psych test question

Thanks as always Ron
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  #28  
Unread 07-23-2013, 09:19 PM
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Quote:
Originally Posted by Greg from Aus View Post
I have to say it again Ron, thanks so much from spending your valuable time with us. I am out at Bob Bonderunt's school at the moment. I will have heaps of questions when I get back to Australia.
Cool. Have fun !

.
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Feel free to chime in or ask technical questions. I am here to help where I can.

Ron Sutton

Ron Sutton Race Technology
Your One Stop, Turn & Go Fast, Car Building Resource Center for Autocross, Track, Road Racing & Triple Duty Pro-Touring Cars

Check out our 400 Page Car Building Catalog HERE

Features: Suspension, Chassis, Cages, Brakes, Rear Ends, Engines, Transmisssions, Aero & Much, Much More!
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  #29  
Unread 07-23-2013, 09:58 PM
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Quote:
Originally Posted by Ron in SoCal View Post
Ron I know spring and shock compression/rebound settings are car and (in some cases) driver dependant. Can you discuss in a general sense shock valving theory (high travel/low roll) for a road race/AutoX car and maybe work in how to read a shock dyno graph? Also, does an increase (i.e. higher rate) rebound and compression curve automatically dictate a stiffer spring?

Everytime I look at one of those graphs I see a psych test question
That was so funny ... I almost spit out my beer. I said almost.

Thanks as always Ron

Hey Ron ... that's a great question that I think will lead to some fun discussions. My wife & I are running out to do some stuff tonight, so I'll address it in the morning.

Take care !


.
__________________
Feel free to chime in or ask technical questions. I am here to help where I can.

Ron Sutton

Ron Sutton Race Technology
Your One Stop, Turn & Go Fast, Car Building Resource Center for Autocross, Track, Road Racing & Triple Duty Pro-Touring Cars

Check out our 400 Page Car Building Catalog HERE

Features: Suspension, Chassis, Cages, Brakes, Rear Ends, Engines, Transmisssions, Aero & Much, Much More!
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  #30  
Unread 07-23-2013, 10:13 PM
Bryce Bryce is offline
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Ron,

Thanks for taking your time to post great info.

Here are some basics of my car.
2700 pounds w/o me
50/50 cross weight w/ me
53/47 front/rear w/ me
RF 756
LF 808
RR 657
LR 729
Cg 19"
RCf 3.5"
RCr 12"

tires: 245 front (25psi) 275 rear (28psi) falken RT615K
wheels 17x8 and 17x9.5
tread width: 67.375 F 66.5 R
track width: 57.5 F 55.5 R

front suspension:
custom double a-arm, not MII
AFCO DA coilovers 400lb spring with .86 motion ratio
700lb sway bar (per 5degree) with a .50 motion ratio
camber -2.5
caster 8.5
toe out 1/16
horizontal LCAs
zero bumpsteer (adjustable)
adjustable ackerman
adjustable camber gain and RC

rear suspension:
3-link with watts (bell crank on chassis)
adjustable roll center and IC and A/S
75% A/S currently
horizontal LCAs
broken coilovers with 225lb springs (ridetechs on order)
no sway bar (hard to package)

Steering:
8:1 manual stock style box.

Driver could use work, I can drive a decent line.
See video from last sunday.



Tire temps (using an IR temp gun) (higher temps on outside)
RF=108-120
LF 110-113
RR=100-108
LR=95-102

Rear shocks are junk but front shocks full stiff rebound and compression.

I will have some pictures later this week. Before I added the 1.25 splined sway bar I had tremendous body roll. Now I feel it is much better but no pics to back that up yet.
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