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Old 06-09-2009, 10:50 AM   #1
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We remove a rear link when the car is understeering (pushing) removing it decreases the amount of rear grip.

Look for a FRONT drop link broken. These break a LOT more frequently than the rears (they turn with the upright)

In 10 min over the phone I can walk you through checking the rear toe on your car. It requires 4 jackstands and string.. and a tape measure. I'd only check this if you KNOW you have hit some major pot holes or bumped a curb. The only time I see rear toe adjustment "out" on our cars = when somebody is really bouncing the cars off the berms at the track.. and I have a solution for those people also


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Old 06-10-2009, 08:30 PM   #2
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Quote:
Originally Posted by Brad Roberts
We remove a rear link when the car is understeering (pushing) removing it decreases the amount of rear grip.

Look for a FRONT drop link broken. These break a LOT more frequently than the rears (they turn with the upright)

In 10 min over the phone I can walk you through checking the rear toe on your car. It requires 4 jackstands and string.. and a tape measure. I'd only check this if you KNOW you have hit some major pot holes or bumped a curb. The only time I see rear toe adjustment "out" on our cars = when somebody is really bouncing the cars off the berms at the track.. and I have a solution for those people also


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I'm going to thoroughly inspect the drop links per your first suggestion.
I may take you up on the second... but it's been my experience (haven't really tinker with cars for 25 years) that if the toe in/out is out of spec, i would notice wavy wear pattern on the tire. rear set of rubbers were replaced couple of thousand miles ago and the problem was first "felt" about the same time. both very recent.
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Old 06-17-2009, 06:57 PM   #3
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regards to drop links at the four corners.
I visually inspect then and all are straight and appeared OK. I then grabbed the drop link and tried to wiggle it - if worn linkage, would I be able to feel play or do I need to unload the suspension to take out possible preload before I can wiggle them to determin slop?
or what do I need to do to determine if the drop link needs replacing?

thanks in advance
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Old 08-20-2009, 12:01 PM   #4
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making this thread longer...
I am now considering replacing the droplink and most likely change the sway bar(s).
the car, 01 box 2.7L is my daily drive. does anyone have graphs/charts that shows the relative firmness for std sway bar, M030, M030s, GT3 and H&R units?
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Old 08-23-2009, 10:48 AM   #5
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One simple possibility is that the new rear tires are not broken-in and are still a bit slick. Especially if you don't drive hard.

This would give less rear stick and therefore more oversteer since the rear would try to slide out while the stickier (broken-in) fronts hold their own.

I would not make any suspension changes until I got the rears broken-in and played with the air pressures.

You need a good baseline going into changes.
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Old 08-23-2009, 10:59 AM   #6
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Quote:
Originally Posted by 70Sixter
One simple possibility is that the new rear tires are not broken-in and are still a bit slick. Especially if you don't drive hard.

This would give less rear stick and therefore more oversteer since the rear would try to slide out while the stickier (broken-in) fronts hold their own.

I would not make any suspension changes until I got the rears broken-in and played with the air pressures.

You need a good baseline going into changes.
thanks, this may be the source. I had dismissed this since many un mount and flip the rear tires to get longer tread life due to high negative camber. but then, they may not be pushing their car to notice.
I would like to install stiffer sway bars but keep the ride height/springs - only DD and weekend drive through the mountain from time to time.
I've been searching the forum for sway bar information. as it stand at this time, I'm leading towards M030 S front sway and Tarett 18.5 mm adjustable rear.
thinking is that this will enable me to alter the "stiffness" front/back by changing the setting of the back. Amateur here - very green!!
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Old 08-23-2009, 12:58 PM   #7
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Your choice of bars is spot on for a street car I sell about 30+ Tarett rear bars a year if not more.

I guess I missed something in all the posts.. I didn't know you had flipped the tires This ok with a race tire.. but you are playing with FIRE doing this with a street tire. They take a "set", you have now upset that "set".. all bets off. Good luck getting the car to handle correctly within the next couple of hundred miles while they try and re-learn their role on the car


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