How can I fix under steer?
How much do you lift?
My next setup will be opposite: over steer on entry and then modulate coming out, on the edge of over steer, not under. Should be fun and quite a bit faster
That is its real purpose. By raising the roll center, you reduce under steer, to a point. I say that because there is a point of diminishing return. We did this on my ranger when we built new front suspension. We set scrub radius at .5" off the SAI, 10* positive castor, -3* camber, and the roll center is much higher than OEM. With 14" of wheel travel, and 35" tall tires, it surprises everyone that rode in it with how much grip the front end has, and how well it handles despite 30* of body roll...ha . And that was with rear leaf springs. I can't wait for it to be done with the new 4-link out back, since it will give the rear suspension a real instant center and roll center. She's going to be an animal...
Last edited by codgi; Nov 15, 2014 at 06:53 PM.
Should handle more or less the same with either tire, just higher limits with the Dunlops.
Agreed. If it's a long turn, I'm assuming it's high-speed. It should take a VERY small amount of modulation. That goes for any turn, just gotta be extra mindful when doing 90+ LOL.
My next setup will be opposite: over steer on entry and then modulate coming out, on the edge of over steer, not under. Should be fun and quite a bit faster
Agreed. If it's a long turn, I'm assuming it's high-speed. It should take a VERY small amount of modulation. That goes for any turn, just gotta be extra mindful when doing 90+ LOL.
My next setup will be opposite: over steer on entry and then modulate coming out, on the edge of over steer, not under. Should be fun and quite a bit faster
The dunlops do change it because they have more grip at the limit, and provide more grip once they go past the limit, or if they're spinning. So if one end of the car gets pushed to far, their is still more grip.
I slowly roll out until the front comes back to me. The rear diff seems to work better every time I change the fluid (been changing it every 500 miles since its new). Hopefully with one more fluid change all of the moly assembly lube TRE uses will be flushed out and it will grab even better. The car is starting to do what kaj is shooting for, but its very planted on entry.
This is an Evo though. I don't know how close the suspension on a ranger is to an Evo especially stock for stock or even lowered to the point that that adding the RCK even matters. I'll be honest in that I've had the part for years and tracked on it and it didn't make as much a noticeable change in the dynamics of the car as say a larger rear sway or stiffer rear springs.
chassis dynamics are chassis dynamics. I noticed a decent difference with the RCK in my evo. Well worth the couple hundred dollars. Its all about creating a combination. Every part adds a little bit to the car. And every bit counts.
for example, i just drove an enduro event in a stock-suspension Evo with a RSB, my re-stacked diff, and Hoosiers. the tires did a lot to hide the weaknesses of the suspension setup. at the end of the day, they were overworked, which is to be expected.. but they enabled us to have two of the three fastest times of the day. had the issues been sorted out beforehand, not only would we have been faster, but the tires wouldn't have been so beat up. just my two cents, though. i'm just making conversation because i'm home with a day off haha
as you mention below: chassis dynamics is chassis dynamics. a stickier tire isn't going to change the balance of the car. if you understeer on street tires, you will understeer on rcomps, it will just take more to push. you are better off getting the car to handle how you want first, but tossing on sticky tires is a workable band aid LOL.
for example, i just drove an enduro event in a stock-suspension Evo with a RSB, my re-stacked diff, and Hoosiers. the tires did a lot to hide the weaknesses of the suspension setup. at the end of the day, they were overworked, which is to be expected.. but they enabled us to have two of the three fastest times of the day. had the issues been sorted out beforehand, not only would we have been faster, but the tires wouldn't have been so beat up. just my two cents, though. i'm just making conversation because i'm home with a day off haha
for example, i just drove an enduro event in a stock-suspension Evo with a RSB, my re-stacked diff, and Hoosiers. the tires did a lot to hide the weaknesses of the suspension setup. at the end of the day, they were overworked, which is to be expected.. but they enabled us to have two of the three fastest times of the day. had the issues been sorted out beforehand, not only would we have been faster, but the tires wouldn't have been so beat up. just my two cents, though. i'm just making conversation because i'm home with a day off haha
Understeer needs to be fixed with stiffer springs, rear diff, and a good alignment. Kaj co-drove my car this weekend and yes it was fast, yes it was fun... But until my coilovers are installed and set up properly the car still will not handle like it is able to. This is what hard driving and stock springs looks like... With a6's
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vesendak
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Dec 1, 2005 08:26 PM











