Until I read your last post, with the 1.66 60-foot, I thought bind, which includes limited shock travel, may be the problem. Yet it doesn't make sense that the car 60-footed better and got less shock travel. However, let's get back to basics. If the shock is topping out, you can make a poor-man's po...

Howdy everyone! I am converting my seminar to a power point presentation and am using this opportunity to rewrite the lesson plan. I'd really like some comments about what you think. This is a VERY comprehensive course and I have sometimes been critcized for giving too much information. So, with the...

I have a couple of thoughts for you. First, the oval racers have a caster/camber gauge that is very tidy and sells for about $40. You don't need a set of turntables, which can be very expensive ($250 +). Instead, use a couple of large garbage bags and place them under the front tires so that you can...

Bill's right, you want positive caster, as much as you can get, which is probably about 2-degrees more than stock. Be sure the caster is the same on bth sides.
Camber should be near zero at ride height, again, same on both sides.
1/16 total toe should be good.
Dave

I’d like to begin by offering my apologies for not being here more often. I can’t use the excuse “been too busy” because while I have had a vibrant summer, I should always have time for my friends here. The plain truth is that I don’t enjoy confrontations, yet the time has come for me to confront Bi...

Jeff, Regarding your corner weights, let me give you some suggestions that may help. Let's be aware that adding ballast to a car is a front-to-rear and side-to-side relationship. When you add weight to the right-rear corner (for example) you increase the weight at the rear and on the right side. Cra...

ccrp, I have been developing a generic IC location that has been working very well with a variety of cars. I'll get into that in a moment but I'd like to focus on some advice Don gave you. Check for the basics, like bind. Whenever a car does something stupid or unpredictable, bind or flex are the pr...

Dear 9, As far as your scrub radius, you would like to have the SAI (steering axis inclination) line to aim for the tire contact patch in the middle third of the area. It sounds like you understand the effect as the cure is to do exactly what you did, get different offset wheels. I agree with the ap...

99,
What are your rear spring rates? If all you are trying to do is to get more wheelspeed, try slightly stiffer springs. In doing so, be careful of how the car handles bumps and gear changes.
Dave Morgan

Great conversation guys! I understand the need to find a good beginning point of IC location, which can only be a hunch for any given tuner, working on any given racecar, with any given tire being launched on any given track surface. We can listen to what others tell us (either in honesty or not) an...

Howdy, I have two comments. First, the idea of stored energy also applies to the rear suspension. We can get more separation, whi ch translates into a more violent hit to the rear slicks, plus we can get better downtrack handling. IMO made the comment about springs not being speed sensitive. I guess...

Mike, yep, I'm still around.
Concerning the free height of the springs, they will be either 12 or 14 inches long, exactly.

The top setting is the one that will tell you what your IC wants. Try stiffening that, then work with the lower adjustment, starting at 0.
Dave

What happens when you stiffen the rear shocks?
Dave

Sorry about that, heavy cars were'nt running that fast when I wrote the book!
I would aim for an IC about 46 inches long. Just remember to listen to what your rear shocks tell you (pages 92-93).
Dave