Car Chat General discussion about Lexus, other auto manufacturers and automotive news.

2021 Lexus IS

Thread Tools
 
Search this Thread
 
Old 09-16-20 | 06:03 AM
  #601  
bitkahuna's Avatar
bitkahuna
Lexus Fanatic
iTrader: (20)
 
Joined: Feb 2001
Posts: 75,631
Likes: 2,588
From: Present
Default

Originally Posted by natnut
Base IS300 AWD but I like the new blue exterior and caramel interior combination :

https://youtu.be/K_r_x6TjTyg
blue looks GREAT. Why does lexus detune the 3.5V6 on the awd some 30-40HP and why do they use the 6 speed auto still?
Old 09-16-20 | 06:46 AM
  #602  
pbm317's Avatar
pbm317
Lead Lap
 
Joined: Apr 2002
Posts: 4,891
Likes: 12
From: Virginia
Default

Originally Posted by bitkahuna
blue looks GREAT. Why does lexus detune the 3.5V6 on the awd some 30-40HP and why do they use the 6 speed auto still?
Isn't the detune because they don't offer the 2.0T with AWD (although that is another question of why not?) and they want to offer a price point below IS350 AWD, which retains the top HP numbers.

Lexus in that gen had some funky stuff for AWD. The LS460 had 360 HP in AWD vs 386 or so in RWD, but at least it still had the 8AT.

Last edited by pbm317; 09-16-20 at 07:00 AM.
Old 09-16-20 | 07:11 AM
  #603  
bitkahuna's Avatar
bitkahuna
Lexus Fanatic
iTrader: (20)
 
Joined: Feb 2001
Posts: 75,631
Likes: 2,588
From: Present
Default

Originally Posted by pbm317
Isn't the detune because they don't offer the 2.0T with AWD (although that is another question of why not?) and they want to offer a price point below IS350 AWD, which retains the top HP numbers.
i didn't know there's an IS350AWD also, so the IS300AWD detune is just to offer a lower cost model. And good point, why isn't there an IS200T AWD.

Old 09-16-20 | 08:37 AM
  #604  
sdls's Avatar
sdls
Lexus Champion
 
Joined: Sep 2010
Posts: 2,218
Likes: 295
From: NA
Default

Originally Posted by pbm317
Isn't the detune because they don't offer the 2.0T with AWD (although that is another question of why not?) and they want to offer a price point below IS350 AWD, which retains the top HP numbers.

Lexus in that gen had some funky stuff for AWD. The LS460 had 360 HP in AWD vs 386 or so in RWD, but at least it still had the 8AT.
The AWD LS has a straight log exhaust manifold while the RWD exhaust manifold has curved pipes going to the cat. Whether or not that accounts for the full 30hp/tq power difference is unknown.
Old 09-19-20 | 12:47 AM
  #605  
natnut's Avatar
natnut
Pole Position
 
Joined: May 2004
Posts: 2,602
Likes: 88
From: Singapore
Default

High quality real world photos

View this post on Instagram
Old 09-19-20 | 06:11 AM
  #606  
Toys4RJill's Avatar
Toys4RJill
Lexus Fanatic
 
Joined: Nov 2011
Posts: 31,752
Likes: 73
From: ON/NY
Default

Originally Posted by sdls
The AWD LS has a straight log exhaust manifold while the RWD exhaust manifold has curved pipes going to the cat. Whether or not that accounts for the full 30hp/tq power difference is unknown.
The transmissions are not quite identical and the gearing/final drive is somewhat different...the gear ratio is about 6 percent shorter

Last edited by Toys4RJill; 09-19-20 at 06:15 AM.
Old 09-19-20 | 12:03 PM
  #607  
natnut's Avatar
natnut
Pole Position
 
Joined: May 2004
Posts: 2,602
Likes: 88
From: Singapore
Default

More specifics regarding chassis improvements. There appears to be significant improvements to chassis rigidity and a large reduction in unsprung weight. Pete Harvey will be pleased to note that ride quality may be improved as well:


One of the first things engineers targeted was enhancing body rigidity. This was done in key areas such as reinforcing the radiator side supports, increasing the number of front-side-member weld points, and optimizing reinforcement structures from the C-pillars to the sides of the roof. The increased rigidity not only helps reduce unwanted noise and vibration, but it also helps improve riding comfort and driving performance with enhanced response to steering input.

engineers took rigidity enhancements one step further by employing lighter weight hub bolts to secure each wheel to the new IS. The use of hub bolts allows for improved fastening strength and therefore an increase to rigidity to further enhance braking and handling. What’s more, the move to hub bolts sheds approximately 2 pounds of total unsprung weight.

Complementing the enhancements to overall rigidity, multiple refinements were made to the suspension setup. For starters, engineers targeted a reduction in unsprung weight. The new IS features coil springs that are 20 percent lighter than the outgoing model. New A-arms are employed as well that feature a forged aluminum material versus the outgoing steel composition, resulting in an 18 percent weight reduction. Engineers also opted for a new material for the suspension stabilizer bar to optimize the diameter and thickness to provide a 17 percent weight reduction.

With unsprung weight reduced, engineers equipped the IS with new swing-valve shock absorbers equipped with ultralow-velocity valves in their pistons to manage oil flow in response to the most minor of road irregularities. Even when the stroke speed of the shock absorbers is low, the new velocity valves provide excellent responsiveness to apply appropriate damping force on all varieties of road surfaces. The result is consistently even ride quality. New bound stoppers are also employed to help manage the sprung weight more effectively for enhanced ride comfort.

In addition, the DHP also includes lighter 19-inch forged alloy BBS wheels finished in matte black. Not only are they impressive looking, the 19-inch BBS wheels are approximately 4 pounds lighter per wheel compared to the standard 19-inch F SPORT wheel.

The RWD F SPORT models with the DHP are equipped with a Torsen® limited slip differential (LSD) that improves handling and performance thanks to enhanced traction when cornering or exiting turns. The LSD helps maintain straight-line stability as well.
Attached Files
File Type: pdf
Old 09-19-20 | 12:25 PM
  #608  
703's Avatar
703
Lead Lap
 
Joined: Aug 2001
Posts: 3,891
Likes: 807
Default

In this day and age, who buys a 4 door car with such cramped rear seats and head space?
Old 09-19-20 | 01:09 PM
  #609  
EZZ's Avatar
EZZ
Lexus Test Driver
 
Joined: Jan 2007
Posts: 7,460
Likes: 228
From: CA
Default

Originally Posted by 703
In this day and age, who buys a 4 door car with such cramped rear seats and head space?
Form over function. Not everyone wants a land barge as a car. The IS350 is a sporty size and I didn't mind the seat space. I think it fulfills it's mission nicely. If you want more size there is the GS...oh wait
Old 09-19-20 | 04:03 PM
  #610  
SW17LS's Avatar
SW17LS
Lexus Fanatic
 
Joined: May 2012
Posts: 58,376
Likes: 2,793
From: Maryland
Default

Originally Posted by 703
In this day and age, who buys a 4 door car with such cramped rear seats and head space?
Tons of people. Not everybody needs a big backseat area.
Old 09-20-20 | 01:00 AM
  #611  
natnut's Avatar
natnut
Pole Position
 
Joined: May 2004
Posts: 2,602
Likes: 88
From: Singapore
Default

IS in orange. Love the color, not too sure about the bodykit:




:

View this post on Instagram

Last edited by natnut; 09-20-20 at 01:06 AM.
Old 09-20-20 | 04:48 AM
  #612  
sorptd's Avatar
sorptd
Intermediate
 
Joined: Apr 2015
Posts: 379
Likes: 0
From: NJ
Default

Originally Posted by natnut
wow looks even better in real world photos. The proportions and stance are spot on ! Good job Lexus 👍
Old 09-20-20 | 04:51 AM
  #613  
mmarshall's Avatar
mmarshall
Lexus Fanatic
 
Joined: Oct 2003
Posts: 91,715
Likes: 89
From: Virginia/D.C. suburbs
Default

Originally Posted by SW17LS
Tons of people. Not everybody needs a big backseat area.
Agreed. The IS250AWD, for years, was a BIG seller in my area. I don't have the hard numbers, but, just from my casual observations each day, it was easily outselling the RWD version.

Last edited by mmarshall; 09-20-20 at 04:55 AM.
Old 09-20-20 | 06:04 AM
  #614  
Gekko's Avatar
Gekko
Lead Lap
 
Joined: Jul 2002
Posts: 750
Likes: 24
From: USA
Default

Does the Non-F Sport and the F Sport have the same front grill in 2021? It sure looks that way.
Old 09-20-20 | 06:23 AM
  #615  
GFerg's Avatar
GFerg
Thread Starter
Speaks French in Russian
CL Folding 25,000
 
Joined: Oct 2002
Posts: 13,303
Likes: 65
From: What is G?
Default

Originally Posted by natnut
Ultrasonic will always be the GOAT Lexus color to my eyes.

​​​​​​However that lower dashboard trim and center armrest area in red is a bit much and cheesy. Usually that area is of harder plastic too.

Add some white accents somewhere for that patriotic look.



All times are GMT -7. The time now is 05:16 AM.