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

Smaller turning radius going right

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Old 10-02-14, 05:50 AM
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hapasaiyan
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Default Smaller turning radius going right

Anyone else notice this? My 2013 has more turns to lock going right than left. Going right, my steering wheel will go exactly 1.5 turns to the right from center, but only about 1.3-1.4 going left from center.

Is it a feature? haha. Never noticed anything like this on any other cars I've had.
Old 10-02-14, 08:47 AM
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scamsel
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hmm, never personally tested myself, but does seem odd. perhaps a zero point calibration is in order? just a guess

http://www.lambros.net/LexusTechInfo...SB-0015-08.pdf
Old 10-02-14, 01:22 PM
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No, zero point won't change anything mechanical, and this is purely mechanical.

The "problem" is the steering rack is not mechanically centered when your wheels are pointing straight ahead (assuming your center steering is dead on meaning the steering wheel is exactly pointing straight when the wheels are also pointing straight - it is more challenging than it should be to get right).

Mine goes ever so slightly more left than right. Neither goes a full 1.5 turns, but basically you have just under 3 turns from lock to lock and they will always be divided by where your center position happens to fall. So having them perfectly equally balanced is pretty unlikely, even for Lexus. It will change after your very first alignment if any adjustments are made.

If you are adamant about getting this equal, it's going to take some work, and likely will involve removing the steering wheel AND performing an alignment at the same time. Definitely not worth the effort since the only time you'll be needing to turn that much is in a parking lot at 2 mph. The rest of the time, it couldn't be less important.
Old 10-02-14, 02:01 PM
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hapasaiyan
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Originally Posted by lobuxracer
Definitely not worth the effort since the only time you'll be needing to turn that much is in a parking lot at 2 mph. The rest of the time, it couldn't be less important.
Yep, this is how I noticed. First time pulling into my garage, the wheel turned to the right more than I expected. Pulling out of the garage, I noticed the wheel doesn't go as far left.

It definitely isn't a problem in normal driving, it was just surprising and I wondered if it was common.

Maybe it would matter if I was the drift king.
Old 10-03-14, 08:51 AM
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hapasaiyan
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Here it is in action:

https://plus.google.com/u/0/+JasonYo...51380026569199
Old 10-03-14, 04:28 PM
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That's pretty far off of center. Might be worth adjusting even though it's a PITA.
Old 10-06-14, 12:22 PM
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hapasaiyan
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Originally Posted by lobuxracer
That's pretty far off of center. Might be worth adjusting even though it's a PITA.
I bought it CPO...think they would do it for free?
Old 10-06-14, 02:15 PM
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All they can say is no. I would ask them to fix it for sure.
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