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Official F-sport Sway Bar Thread!

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Old 08-20-10, 10:32 AM
  #391  
Sewell
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Originally Posted by lowrideraz
... (the old discontinued kit with the rear only bar) I sold my stock IS-F bar to an IS-350 owner. He was happy with it.

Lou
Lou - may I ask why you say the rear F-Sport sway bar is discontinued?

Darrel
Old 08-20-10, 08:08 PM
  #392  
flowrider
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^^^^Hi Darrel

One reason is it's not in the current F-Sport catalog. Another is that it has become extremely hard to find the past 2 or 3 months. The third reason is that Lexus has (for 2010) come out with an AWD kit that comes with both the front and rear sway bars, and the front bar is specific to the AWD model. Do you know something different?

Lou
Old 08-20-10, 08:38 PM
  #393  
cmky3
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Getting my F-Sport sway bars installed tomorrow on a 2010 IS250 RWD

All the pictures I've found online of the front sway bar have a bracket welded to one end (both F-Sport and OEM.) The front bar I got from Sewell doesn't and snapping photos under my car I'm pretty sure the OEM bar on my car don't have them either. Surprised this has never come up before.

Am I crazy and/or getting terrible angles with the camera and missing something?

Update: I wasn't crazy. The 2010 IS250 RWD oem front sway bar lacks the brackets too (in other words it's symmetrical.) Really impressed with the sway bars so far. Ride is 10% bumpier, but body roll is down about 80%.
Attached Thumbnails Official F-sport Sway Bar Thread!-img_0616.jpg   Official F-sport Sway Bar Thread!-img_0620.jpg  

Last edited by cmky3; 08-22-10 at 03:19 PM.
Old 08-20-10, 11:05 PM
  #394  
sangomaru
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Yep, had my F-Sport sways installed today. Much better.
Old 08-22-10, 08:52 AM
  #395  
Alantjai
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Someone who installed the Fsport sway bar and replaced it by performance sway bar from lexus asia.

http://tw.myblog.yahoo.com/kuan-yi/a...333&l=f&fid=18

Use google translation in order to understand the writing (unless you do read chinese)

Base information:

Stock sway bars:
front 27.2mm
rear 15mm

Fsport bars:
front 28.6mm
rear 19mm

Performance swaybar:
front 28.6 (stock isf bar?)
rear 17mm (might be the ISF rear bar?)

result of replacing the Fsport sway bar with the performance swaybar was not really noticable. The cornerning abilities are identical. Therefore, The price of the performance sway bar is way less)
Old 08-24-10, 12:06 PM
  #396  
mong
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Initially the published numbers from Lexus were this:

Front Rear
IS250 46.6% 42.8%
IS350 6.3% 151.5%

now.. on fsport.com it says:

Front Rear
IS250 46.6% 6.3%
IS350 42.8% 151.5%

what to believe???

I already ordered the rear bar too(2010' is350) should I order the front too?
Old 08-24-10, 02:24 PM
  #397  
syzygy
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Originally Posted by mong
Initially the published numbers from Lexus were this:

Front Rear
IS250 46.6% 42.8%
IS350 6.3% 151.5%

now.. on fsport.com it says:

Front Rear
IS250 46.6% 6.3%
IS350 42.8% 151.5%

what to believe???

I already ordered the rear bar too(2010' is350) should I order the front too?
If the second set of data are true, that might explain why so many people with IS250s claim to feel virtually no difference with just the rear sway bar installed.

It also provides a strong rationale for IS350 owners to get not only the rear sway bar, but the front F-sport sway bar as well.
Old 08-24-10, 02:38 PM
  #398  
SC3coupe
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Originally Posted by mong
Initially the published numbers from Lexus were this:

Front Rear
IS250 46.6% 42.8%
IS350 6.3% 151.5%

now.. on fsport.com it says:

Front Rear
IS250 46.6% 6.3%
IS350 42.8% 151.5%

what to believe???

I already ordered the rear bar too(2010' is350) should I order the front too?
This is one of those debates that will probably not clear up in the next few years, but you can draw your own conclusion and measuring things with a set of calipers helps.

https://www.clublexus.com/forums/sus...o-is250-2.html
Old 08-27-10, 08:29 AM
  #399  
Alantjai
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FYI

ISF rear sway bar will not fit on NON US SPEC ISx50!!

The sparewheel is still a bottleneck, You can fit the Rear bar but it will hit the Sparewheel when loaded.

I think the only swaybar that would fit, is the JUN-TW
Old 08-27-10, 11:40 AM
  #400  
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^^^^I don't believe that's true. Unlike the F-Sport rear bar, the ISF bar is curved like the bars in the rest of the IS line. I took mine off and replaced it with an F-Sport Bar. A pict of my old bar is attached.

Lou
Attached Thumbnails Official F-sport Sway Bar Thread!-img_0442.jpg  
Old 08-27-10, 01:39 PM
  #401  
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Originally Posted by lowrideraz
One reason is it's not in the current F-Sport catalog. Another is that it has become extremely hard to find the past 2 or 3 months. The third reason is that Lexus has (for 2010) come out with an AWD kit that comes with both the front and rear sway bars, and the front bar is specific to the AWD model. Do you know something different? Lou
Lou - your logic is right on. As it stands today the bar is just a replacement part as opposed to being an add-on accessory. Yes, they're now in limited supply but yes, we're still receiving them. We've moved a considerable amount of these over the past couple months - some shipped on time, others I'm afraid to say didn't. Nonetheless they're still available.

Darrel
Old 08-27-10, 03:16 PM
  #402  
Alantjai
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Yes It has the bend and it will just fit, but there is no room for the sway bar to move, so it will just hit the sparewheel. You've got the ISF where there is still some room left, but the EURO IS250 has very limited space and the bend of the sway bar is different.

Please look at the bend on this:



EURO ISF DOES have the same bar as your picture, sparewheel isn't a full size, but the IS250/220D, is.

Originally Posted by lowrideraz
^^^^I don't believe that's true. Unlike the F-Sport rear bar, the ISF bar is curved like the bars in the rest of the IS line. I took mine off and replaced it with an F-Sport Bar. A pict of my old bar is attached.

Lou
Old 08-27-10, 08:42 PM
  #403  
mong
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Originally Posted by mong
Initially the published numbers from Lexus were this:

Front Rear
IS250 46.6% 42.8%
IS350 6.3% 151.5%

now.. on fsport.com it says:

Front Rear
IS250 46.6% 6.3%
IS350 42.8% 151.5%

what to believe???

I already ordered the rear bar too(2010' is350) should I order the front too?
So.. can anybody give me any insight with just the F-Sport rear sway bar combo with the OEM front sway bar?? over steering/under steering? or I will be fine with just the rear f-sport sway bar on?
Old 08-27-10, 09:35 PM
  #404  
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Darrell... any news on the backorder?
Old 08-27-10, 11:59 PM
  #405  
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Originally Posted by mong
So.. can anybody give me any insight with just the F-Sport rear sway bar combo with the OEM front sway bar?? over steering/under steering? or I will be fine with just the rear f-sport sway bar on?
Yes, Vince (CleverName) commented on this somewhere earlier in this thread.

He initially had just the F-sport rear sway bar but said it felt odd/unstable to him in one way or another, and that adding the F-sport front sway bar alleviated this problem (IS350)

Based on what Vince said, and assuming that these new figures are true - it would make sense for all IS350 owners to have both the front and rear F-sport sway bars instead of just the rear.


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