IS - 3rd Gen (2014-present) Discussion about the 2014+ model IS models

IS300 vs IS350 - 300 Feels nicer to drive

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Old 08-27-18, 10:28 PM
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Dreamcast
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Default IS300 vs IS350 - 300 Feels nicer to drive

I took my 2016 IS350 for servicing a few months back, only 12000km so it's in beautiful condition. Lexus gave me a 2017 IS300 loaner and the feel is like night and day.

The IS300 feels much more compliant over bumps, it's quieter and steering is light and effortless. Overall it feels so solid and comfortable to drive.

It could just be me or the tires i'm guessing. My tires are the OEM Dunlop SP SPort Maxx 050. Tread still good.

Anyone have a similar experience?
Old 08-27-18, 10:48 PM
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kimmi
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Comment on the turbo lag?
Old 08-27-18, 10:59 PM
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Jay89
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Originally Posted by kimmi
Comment on the turbo lag?
if it's a 17 is300 then it should still be the v6 na
Old 08-28-18, 06:51 AM
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MX73
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The 2017+ introduced a few suspension improvements over the pre-2016 models.
Old 08-28-18, 07:17 AM
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arentz07
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Originally Posted by MX73
The 2017+ introduced a few suspension improvements over the pre-2016 models.
+1, this was what I was thinking as well. Obviously a 350 without AVS would have the same suspension setup as a 300.

I kinda want to try one of the refreshed IS's now.
Old 08-28-18, 06:03 PM
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I thought the 2016 IS350 F sport has AVS, which is what i own. The difference over bumps in the 2017 is noticable to the point where i feel confident driving over poor roads without any jarring sensation.
Old 08-28-18, 08:29 PM
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TOPENDMS
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Originally Posted by MX73
The 2017+ introduced a few suspension improvements over the pre-2016 models.
Any idea exactly what 'improvements' where made in 2017?
Old 08-28-18, 08:39 PM
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MX73
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Originally Posted by TOPENDMS
Any idea exactly what 'improvements' where made in 2017?

A quick search of the internet.

2017 Lexus IS: revised suspension and steering

The dynamic performance of IS has been improved through revisions to the front and rear suspension and steering. As a result of these measures, all models demonstrate better ride quality, body control, rear-wheel traction and straight-line stability, as well as better steering response and feedback.



The front double wishbone suspension (above) has a new, more rigid, forged aluminum lower arm assembly together with more rigid bushing – changes that bring no weight penalty and contribute to better steering response at cruising speeds. Changes have been made to the spring and damper settings to improve control and yaw response, and the power steering’s ECU settings have been revised in order to achieve better communication with the driver.



At the opposite end of the car, the rear multi-link suspension has also gained new bushes, anti-roll bar, shock absorber components and revised damper settings.
Old 08-28-18, 09:18 PM
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Dreamcast
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That looks like significant changes. In practice it's massively noticable or maybe its just me. Surprised no one else has noticed this.
Old 08-29-18, 07:44 AM
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MorrisGray
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"if it's a 17 is300 then it should still be the v6 na?"

I believe the IS300 is a turbo assisted 4 cylinder engine.
Old 08-29-18, 07:49 AM
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Originally Posted by MorrisGray
"if it's a 17 is300 then it should still be the v6 na?"

I believe the IS300 is a turbo assisted 4 cylinder engine.
The IS 300 has two different options as of 2018:

4 cylinder Turbo 240hp

3.5 litre 6 cylinder AWD V6 261hp
Old 08-29-18, 07:50 AM
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arentz07
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Originally Posted by MorrisGray
"if it's a 17 is300 then it should still be the v6 na?"

I believe the IS300 is a turbo assisted 4 cylinder engine.
https://www.cars.com/research/lexus-is_200t-2017/

The IS 300 was AWD only, V6 only in 2017.
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Old 08-29-18, 07:52 AM
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Jeff Lange
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Originally Posted by MorrisGray
"if it's a 17 is300 then it should still be the v6 na?"

I believe the IS300 is a turbo assisted 4 cylinder engine.
It is, but also, it's not.

The 2018 IS300 RWD is a turbo 4-cylinder and is a rebadged IS200t (2016-2017).

The IS300 AWD is and always was a 3.5L V6. In 2017, the only IS300 available, was the AWD.

Jeff
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Old 08-29-18, 07:58 AM
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As far as the suspension updates go, the changes mostly only apply to the RWD models only (with the exception of the dampers and rear sway bar).

If you wanted your 2016 AWD to ride like a 2017 AWD, you would just need to get 2017 shocks and rear sway bar.

Jeff
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Old 08-30-18, 03:24 PM
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E46CT
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It's basically the GS suspension. The cars don't weigh drastically different so makes sense to combine the parts.

I posted some part and part # changes in another thread. Damper rates were also changed. The downside is though the facelift gained 90 lbs. Overall though I think i'd appreciate the new suspension.


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