Re: Adjustable control arms for Miata
Posted: Mon Feb 08, 2010 8:14 pm
Both sways are stock. Good driving might be out of the question--- I might have to do it with hardware.
Capital Driving Club Discussion Forum
http://www.capitaldrivingclub.com/forum/
http://www.capitaldrivingclub.com/forum/viewtopic.php?f=22&t=722
More is not always better. -10°will likely hurt grip both in the corners and accelerating down straights. It's all about the choosing the right static camber setting for your particular setup (ride height, roll stiffness, roll center, etc.) I don't ever see people needing more than -4° or -5° in the rear on a Miata and that is sometimes doable with the stock eccentrics. Last I heard Dan was already running a decent (albeit street biased) performance alignment - Icehawk or Lanny or whatever. I don't believe he is going to get the gains he's looking for by adding a degree or two of additional camber.eage8 wrote:kyle.bowker wrote:and more camber definitely won't hurt.
Which coil/spring setup did you go with? I remember trying to persuade you towards the FCM valved Bilsteins or the Tein Flex as good choices for a dd Miata. Both of those setups are often tuned for a mild front sway bar upgrade (think Flyin' Miata) and NO rear sway bar at all. If you're running on a relatively mild coil/spring setup (KYB AGX or Koni Yellow & some lowering springs) then you might get some gain with a matched set of beefier sway bars.Dan133 wrote:Both sways are stock. Good driving might be out of the question--- I might have to do it with hardware.
I realize that more isn't always better. I didn't realize you could get -4 or -5* of camber out of stock components. I was thinking he was running -1-2*.kyle.bowker wrote:More is not always better. -10°will likely hurt grip both in the corners and accelerating down straights. It's all about the choosing the right static camber setting for your particular setup (ride height, roll stiffness, roll center, etc.) I don't ever see people needing more than -4° or -5° in the rear on a Miata and that is sometimes doable with the stock eccentrics. Last I heard Dan was already running a decent (albeit street biased) performance alignment - Icehawk or Lanny or whatever. I don't believe he is going to get the gains he's looking for by adding a degree or two of additional camber.
It is curing your oversteer by changing the weight transfer characteristics of the car, not by losing overall grip. If you were to cure your oversteer by over inflating the front tires to reduce their maximum grip level, you would be sacrificing grip at one end to balance out what you have at the other. You would effectively have degraded the front grip to match the apparent lack of rear grip. But what if your rear grip potential is the same as that in the front, but you are asking the rear of the car to carry too much load through the corner. If you alter the weight transfer characteristics of the car, you can ask the front end to pick up more of the load, which consequently reduces the load on the rear and can bring the car back towards neutral or understeer.Dan133 wrote:Running Illumina's and ground control's from Flyin' Miata. With the stock eccentrics maxed out I am getting approx -1.5 front and -1.8 rear. Ride height approx 12.5'"center of hub to lip.Toe is set at OEM both front and rear. Tires------ I have those fairly worn A6's but will have to do something else this year as well. I don't see the advantage of a bigger front sway as (if I understand correctly) that would just cure my oversteer by creating some push. Push always feels slow. I want to increase the overall cornering G's. And I really do appreciate everybody's input. This is a great learning experience.
Are you giving up caster in the front to max camber?Dan133 wrote:Running Illumina's and ground control's from Flyin' Miata. With the stock eccentrics maxed out I am getting approx -1.5 front and -1.8 rear. Ride height approx 12.5'"center of hub to lip.Toe is set at OEM both front and rear. Tires------ I have those fairly worn A6's but will have to do something else this year as well. I don't see the advantage of a bigger front sway as (if I understand correctly) that would just cure my oversteer by creating some push. Push always feels slow. I want to increase the overall cornering G's. And I really do appreciate everybody's input. This is a great learning experience.
Amen. Everything begins and ends with tire; tune the suspension for the tire. Don't know if rcomps are any different, but at least with street tires, my entire setup changed _dramatically_ with tire choice... the alignment settings, springrates, etc that worked with one tire didn't work with another (and changed as they wore since I started with full treads instead of shaving).moxnix wrote:If you are on old tires I would get fresh tires on the car before you start trying to fix any handling problems because your car will be completely different on fresh tires.