IS F (2008-2014) Discussion topics related to the IS F model

Are all Fs prone to front inner tire edge wear?

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Old 05-13-15 | 08:10 AM
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Unhappy Are all Fs prone to front inner tire edge wear?

When i first purchased my F, it pulled straight. After 1 month of ownership, it started pulling to the right. I bring it to an alignment shop and they re-aligned it back with in specs. After 1 more month, it was still pulling to the right. The alignment was still in spec but after close examination of my front tires, i notice the negative signs showing on both my front tires. I've been reading some threads, especially lobuxracer's OP. Is there any way i can prevent this from happening again? I do a mix of city and highway driving. My car pulls a little to the right and i do not want to spend $500 a set for front tires that only last every 2k miles due to uneven wear.
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Old 05-13-15 | 08:15 AM
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Yup.

Buy this: http://shopfigs.com/v1/index.php?rou...product_id=235

Go get an alignment.

As I am sure you have read, it is a design of the car to toe out under braking.

I personally believe it was put in to cause understeer to protect people from spinning the car out...but what do I know.
Old 05-13-15 | 08:20 AM
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Originally Posted by MisterSkiz
Yup.

Buy this: http://shopfigs.com/v1/index.php?rou...product_id=235

Go get an alignment.

As I am sure you have read, it is a design of the car to toe out under braking.

I personally believe it was put in to cause understeer to protect people from spinning the car out...but what do I know.
I agree. It also helps under trail braking by toeing out, but for what it does to tire wear, it's a bad idea. I am sure the reason this bushing is so big and squishy is to preserve the "Lexus" ride.
Old 05-13-15 | 08:36 AM
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^^Thanks you guys. In referring to lobux comment, would these bushing affect the ride quality in good terms or more harsh terms?
Old 05-13-15 | 08:41 AM
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Originally Posted by idoke1
^^Thanks you guys. In referring to lobux comment, would these bushing affect the ride quality in good terms or more harsh terms?
I put the bushings on my car and haven't noticed any more harshness or vibration.
Old 05-13-15 | 08:52 AM
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Lubuxracer - I thought you worked out your inner tire wear with an alignment alone (without figs bushing)?
Old 05-13-15 | 09:36 AM
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i had my toe set to zero, just like lobux suggested and my fronts have lasted about 25k miles. just got some new tires and waiting to mount them. no tracking, highway/city mix driving. seems like the figs bushings help in minimizing the inner wear. not sure if i'll go that route, though.
Old 05-13-15 | 09:40 AM
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I am about to install my new tires this weekend - I plan on using the very close to zero toe setting too...

On the stock alignment, I had very bad inner tire wear.
Old 05-13-15 | 09:55 AM
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I know the inner wear on my is350 was bad but have not seen this issue with the F. Anyone know if the camber is different with the revised suspension 2011+?
Old 05-13-15 | 09:55 AM
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Originally Posted by idoke1
^^Thanks you guys. In referring to lobux comment, would these bushing affect the ride quality in good terms or more harsh terms?
I have them and have not noticed any difference in terms of ride quality good, bad or otherwise.

I don't track my car, so I can't speak for really pushing the F in to very hard turns, but the limited higher speed turns I take (say highway off/on ramp) the front end definitely feels much more planted.

I also have the F-Sport rear sway + coilovers and the set up makes driving even more fun.

Fig (Mike) did a video showing just how much the LCA bushing gives under acceleration and braking, it makes sense to replace it with his LCA.

Between the LCA part and Lexus using toe alignment #'s that love to eat up the inner portion of your front tire, it's worth it.

The IS300 guys (Me being one of them and still having the Gen 1 IS) figured out the toe alignment settings a long time ago.
Old 05-13-15 | 10:29 AM
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Originally Posted by MisterSkiz
Yup.

Buy this: http://shopfigs.com/v1/index.php?rou...product_id=235

Go get an alignment.

As I am sure you have read, it is a design of the car to toe out under braking.

I personally believe it was put in to cause understeer to protect people from spinning the car out...but what do I know.
Is that $360 each side or for the pair?
Old 05-13-15 | 10:39 AM
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Originally Posted by Drok149
Is that $360 each side or for the pair?
It's for the pair.
Old 05-13-15 | 11:02 AM
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That's the price for the pair of them.

It's recommended to get the pre-mounted variety and send yours back when the swap is done.
Old 05-13-15 | 11:08 AM
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Do you guys only set the toe to 0 in the fronts? Or both Front & Rear?
Old 05-13-15 | 11:15 AM
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Coming from the 3IS section... I just installed coils and it created an undesired camber in the front (and to a lesser extent, the rear) of the car. I talked to the Figs vendor on here and he recommended me the bushing for the inner tire wear as well. So from what I've gathered, this won't help with negative camber but it will help with tire wear? How does that work? I thought negative camber and inner tire wear when hand in hand?


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