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FIGS Front Lower Arm Rear Mount #2 Poly Bushing 90 duro HP

   
Old 05-12-15, 10:02 PM
  #121  
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Originally Posted by MisterSkiz

Also, I see absolutely no way you are lubing up the bushing between the poly material and the small tube that the LCA threaded stud goes through without taking the whole bushing assembly off the car.
The back nut of the LCA comes off and you push the center tube out of the bushing from the front. Its very doable, but more importantly it should be very infrequent to have to maintain them.
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Old 05-15-15, 12:54 AM
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Originally Posted by Jeff Lange
I ended up trying to avoid the maintenance of poly bushings, so I ordered these bushings from an RC F instead. They are noticeably stiffer than the factory 2IS, but still retain the rubber design like the factory ones.

Jeff
Interesting idea! Just curious, how much are the RCF bushings? I'll assume you have to have them pressed into the LCA brackets of our Gen 2 IS/ISF's
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Old 05-19-15, 03:47 PM
  #123  
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Originally Posted by ISF_GG
Interesting idea! Just curious, how much are the RCF bushings? I'll assume you have to have them pressed into the LCA brackets of our Gen 2 IS/ISF's
The bushings only come with the brackets from Lexus. There is no pressing involved.

RH: 48075-24010
LH: 48076-24010

Both of these are for 0 caster adjustment, and what I'm running in my IS250.

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Old 05-19-15, 04:21 PM
  #124  
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Originally Posted by Jeff Lange
The bushings only come with the brackets from Lexus. There is no pressing involved.

RH: 48075-24010
LH: 48076-24010

Both of these are for 0 caster adjustment, and what I'm running in my IS250.

Jeff
What was the cost ? How long have you been running them?
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Old 05-19-15, 05:03 PM
  #125  
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I've been running them for a couple months.

In the US, they're about $65 a piece.

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Old 05-19-15, 06:02 PM
  #126  
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Thanks Jeff I might look into this.
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Old 05-19-15, 07:31 PM
  #127  
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We will get some the next time we get brackets to press our bushings into and do a right up on the differences.
Mike
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Old 05-19-15, 08:03 PM
  #128  
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Originally Posted by FIGS
We will get some the next time we get brackets to press our bushings into and do a right up on the differences.
Mike
Excellent. I had intended on doing a test on deflection, to get actual stiffness percentage differences, but ended up not having time, had to get the car back together.

I'd be very interested to know what you guys find. I'm positive the FIGS bushings are stiffer, I just really didn't want poly bushings on my car.

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Old 05-20-15, 11:51 AM
  #129  
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Originally Posted by Jeff Lange
Excellent. I had intended on doing a test on deflection, to get actual stiffness percentage differences, but ended up not having time, had to get the car back together.

I'd be very interested to know what you guys find. I'm positive the FIGS bushings are stiffer, I just really didn't want poly bushings on my car.

Jeff
what's the downside to poly bushings?
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Old 05-20-15, 08:46 PM
  #130  
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Noise and needing to grease them.

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Old 05-20-15, 10:38 PM
  #131  
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Originally Posted by Jeff Lange
Noise and needing to grease them.

Jeff
I would agree on traditional poly bushings, but not ours. Between the retention features on the tube interface and the compatible synthetic grease we see very long service intervals between greasing and we have yet to regrease ours installed on the IS-F with 75K miles, of which 50K or so on the bushings with many track days.
By contrast the poly bushings in the Hotchkis sway bar required seasonal greasing as it just pushes out each time pressure is applied. In any case, the bushings from Superpro are unique in this regard and one of the reasons we chose them as a partner.
Mike
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Old 05-21-15, 11:57 AM
  #132  
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Originally Posted by FIGS
I would agree on traditional poly bushings, but not ours. Between the retention features on the tube interface and the compatible synthetic grease we see very long service intervals between greasing and we have yet to regrease ours installed on the IS-F with 75K miles, of which 50K or so on the bushings with many track days.
By contrast the poly bushings in the Hotchkis sway bar required seasonal greasing as it just pushes out each time pressure is applied. In any case, the bushings from Superpro are unique in this regard and one of the reasons we chose them as a partner.
Mike
They are definitely a high quality product, and when I'm building a track car or something that doesn't see Canadian winters, I'll probably use them, but I'm just way too OEM to use them, haha.

I know you guys and Superpro have put a lot of time and research into your products, so no knocking them, they're just not for me on this car.

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Old 05-21-15, 03:39 PM
  #133  
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Originally Posted by Jeff Lange
The bushings only come with the brackets from Lexus. There is no pressing involved.

RH: 48075-24010
LH: 48076-24010

Both of these are for 0 caster adjustment, and what I'm running in my IS250.

Jeff
Jeff, do you know how much a +20 bushing would change caster?
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Old 05-21-15, 03:53 PM
  #134  
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By 20' (1/3 degree).

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Old 05-21-15, 05:46 PM
  #135  
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FWIW, there is only one RCF LH bracket in the US and the RH needs to be special ordered, so..we are going to have at least one soon.
Mike
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