Why a balanced setup is better than a "understeery" setup.

[solidONE]

Originally Posted by CSG Mike

They'd actually be really boring; the only thing you'd really be able to compare is how much the steering wheel is turned to go through the same corner.

I'll see if I can borrow a gopro or two the next time I do something like this.

Now if the videos had display of g-force, throttle %, and brake pressure along with the AIM log plus commentary it would make for some pretty good teaching material.

Just to add to the discussion, do you think that because the slightly slower corner entry and mid corner speeds allowed the green car to carry more speed out of the corner? Or, is it that the more "understeery" nature of the green was more receptive more aggressive throttle increase? Or, a little of both?

[sstfnv]

Has anyone tried RCE Tarmac2's with 400F/500R spring rates?

I'm interested how it feels because I'm currently running 400F/400R (stock sway bars) and I get a lot of understeer and that is with -3.2 camber up front. It feels real fast as I'm able to get on the throttle real early but I think I'm sacrificing corner entry and mid-corner speed.

I know some of you were interested in such setup. I have the 500lb rear springs and I'm debating if I should install them for the next track event.
@Racecomp Engineering; @wparsons; @Reaper; @CSG Mike;

[Racecomp Engineering]

Originally Posted by sstfnv

Has anyone tried RCE Tarmac2's with 400F/500R spring rates?

I'm interested how it feels because I'm currently running 400F/400R (stock sway bars) and I get a lot of understeer and that is with -3.2 camber up front. It feels real fast as I'm able to get on the throttle real early but I think I'm sacrificing corner entry and mid-corner speed.

I know some of you were interested in such setup. I have the 500lb rear springs and I'm debating if I should install them for the next track event.
@Racecomp Engineering; @wparsons; @Reaper; @CSG Mike;

Yes, 400/500 works well on our T2s. We've done custom rates for those that are interested in more rear biased set-ups.

PM me the details on your set-up and I can help you get the car dialed in.

- Andrew

[sstfnv]

Originally Posted by Racecomp Engineering

Yes, 400/500 works well on our T2s. We've done custom rates for those that are interested in more rear biased set-ups.

PM me the details on your set-up and I can help you get the car dialed in.

- Andrew

PM sent!

[Racecomp Engineering]

Originally Posted by sstfnv

PM sent!

PMing you back...I've got a couple suggestions for you.

Short version, with those sticky tires, 400/400s with stock sways is just too soft overall. If you only could add one pair of 500's, I'd add them to the front, raise the rear a tad, and watch yourself get faster. But that wouldn't be my "ideal" solution. We'll get you sorted.

- Andrew

[CSG Mike]

Originally Posted by sstfnv

Has anyone tried RCE Tarmac2's with 400F/500R spring rates?

I'm interested how it feels because I'm currently running 400F/400R (stock sway bars) and I get a lot of understeer and that is with -3.2 camber up front. It feels real fast as I'm able to get on the throttle real early but I think I'm sacrificing corner entry and mid-corner speed.

I know some of you were interested in such setup. I have the 500lb rear springs and I'm debating if I should install them for the next track event.
@Racecomp Engineering; @wparsons; @Reaper; @CSG Mike;

Only one way to find out; give it a shot. Keep in mind that at static, you'll likely have the rear give out first, so be careful starting, but you may end up liking it. Looser is faster, only if you can manage it.

Do you have a log showing your cornering behavior? If you think you're losing entry/mid corner speed, brake a little less. If you "can't make it", then you're probably already close to the limits of your setup.

You can also try a rear sway instead of the springs.

[OkieSnuffBox]

@CSG Mike


http://counterspacegarage.com/aim-sp...lap-timer.html


Is that what you're using for these data logs, or something?

[sstfnv]

Originally Posted by CSG Mike

Only one way to find out; give it a shot. Keep in mind that at static, you'll likely have the rear give out first, so be careful starting, but you may end up liking it. Looser is faster, only if you can manage it.

Do you have a log showing your cornering behavior? If you think you're losing entry/mid corner speed, brake a little less. If you "can't make it", then you're probably already close to the limits of your setup.

You can also try a rear sway instead of the springs.

Yes. I will post my AIM Solo DL log when I get home tonight.

I have a video with some data overlay:
[ame="https://www.youtube.com/watch?v=blSZPid5_iA"]https://www.youtube.com/watch?v=blSZPid5_iA[/ame]




I made a bunch of small mistakes in this video but still you get an idea about the car behavior.

[CSG Mike]

Originally Posted by OkieSnuffBox

@CSG Mike


http://counterspacegarage.com/aim-sp...lap-timer.html


Is that what you're using for these data logs, or something?

Yes it is!

[CSG Mike]

Originally Posted by sstfnv

Yes. I will post my AIM Solo DL log when I get home tonight.

I have a video with some data overlay:

I made a bunch of small mistakes in this video but still you get an idea about the car behavior.

Your current setup is indeed heavily understeer biased.

I'd recommend that you put in the 500lb springs, and also an adjustable front sway bar, and fine tune your car's balance with the front sway.

You can also toe-out the front slightly (1/16" tottal toe out) to improve corner entry, and run a slight amount of toe in (1/16" total toe in) in the rear to help stabilize the (soon to be) better balanced rear.

Right now, your setup overworks the front so hard that the rear never has a chance to step out with your controlled inputs.

[Racecomp Engineering]

Originally Posted by CSG Mike

Your current setup is indeed heavily understeer biased.

I'd recommend that you put in the 500lb springs, and also an adjustable front sway bar, and fine tune your car's balance with the front sway.

You can also toe-out the front slightly (1/16" tottal toe out) to improve corner entry, and run a slight amount of toe in (1/16" total toe in) in the rear to help stabilize the (soon to be) better balanced rear.

Right now, your setup overworks the front so hard that the rear never has a chance to step out with your controlled inputs.

I agree that car is understeering and needs more roll resistance front and rear.

The alignment changes would help as well.

- Andrew