Speed3381

I have a 2014 GS 350 F sport and I feel like the car's acceleration is really slow.

Also when I am turning sharp corners, I seem to be leaning towards the door a lot. So much body roll. Any one else experience this?

You guys think it's those crappy bridgestone tires?

JDR76

No complaints here.

As for being "slow" it's a relative term. Are there faster cars out there? Absolutely. Just as there are slower ones. I am still happy with the acceleration in mine. I took a thorough test drive so I knew what I was getting when I bought it.

As for body roll, I would classify it as moderate to light in normal mode, and pretty minimal/well controlled in Sport S+. Overall, I've been satisfied with it.

13gs350

What were you driving before?

Speed3381

A 2004 bmw z4

Here is an opinion from another owner from a different forum. I guess I am not alone. Oh well.

"GS 350's 1st gear sucks. There, I said it. It's lazy, long, and dog slow. I will never, ever burn anyone off a red light. At the same time, I doubt I'll ever spin the tires in the rain at a red light which happened nearly every time in the old Infiniti G35, the TCS light happily reminding me 1st gear was high strung. Once you get past first gear, the car positively hauls ***, but the 1 or 2 seconds you're stuck in it, it feels like you're stuck in the mud. This leads you to believe the car is intentionally electronically hampered and creates doubt about what the 306 horses under the hood are capable of. On the bright side, knowing it acts this way, I am much less tempted to pull some Friday night stoplight pedal stomping crap like I used to (for fun of course). There's no point. With a 5.7s 0-60, I'm not going to impress anyone in the same price range anyway, so there's really no reason to smash the gas on green. Still, I miss the immediacy and rottweiler-on-a-short-leash 5 speed from the G35, even if it snapped your neck doing the 1-2 shift in the winter."

Nasrul3698

Well it is a NA engine so it takes time for the torque to kick in. Not really complaining as its definitely faster than the average cars. Considering its a sports luxury car, only performance cars can beat it (M, AMG, F, S, other performance cars lol, and some of other sports luxury cars).

As for the body roll, it does lean quite a lot but the suspension and chassis really grips the road quite well

lamikela1

Same here. When I first got mine I came from an ES350 and didn't think the GS had as much torque as the ES. But after realizing that the GS needs to be up in a higher RPM range to perform I feel like it's a bit better than the ES in acceleration. on the handling part there is no comparison. This thing is on rails in corners. I am not sure how fast the OP was trying to corner but I have done corners posted at 40 MPH at 80 MPH and it is solid as a rock with almost neutral steering in S+ mode. Mine is not an F Sport but it's the same car performance wise except the F Sport may be a bit lighter than the lux model. I am very satisfied in both respects.

dchar

As mentioned before, speed is subjective. Compared to your old car, it's probably on par in acceleration. The GS is faster than most cars on the road. You can get a the Apexi throttle controller to improve response in the lower gears.

Body lean is pretty well controlled for a luxury sedan. It's not going to be as flat as a Z4 though.

ssmoked

get a GSF. Dealers are unloading them at 23% off msrp

biggame

iTrader: (9)

Stock? Yes, it accelerates slower. Might try adding a throttle controller. Makes a hell of a difference! For roll, maybe try lowering spring and some aggressive tires

Nasrul3698

And i thought Sport+ in first gear is really jerky. Does a throttle controller actually improve 0-60 times?

biggame

iTrader: (9)

No performance enhancement. (feels like it would though) Gives you instant throttle response, or takes it away if you choose

bclexus

It's really all about horsepower/torque and weight. Ya gotta change one or the other, or both, to improve acceleration.

By the way, the car's transmission gearing and rear-end gearing are very adequate for acceleration (with the 6-speed providing better 0-60 times).

BMW Z4 0-60 Times

Lexus GS 350 0-60 Times

13gs350

You Z4 was certainly a more agile car than the GS. you went form a 2 door roadster weighing sub-3,000 lbs to a 4 Door Luxury car weighing 3,600+ lbs. There is a huge difference in mannerisms when driving the two. The GS 350 would feel "bloated" to you. Personally, I love the GS, and I set my expectations accordingly. I don't expect it to win very many stoplight drag races. However, I feel the acceleration is more than adequate for the type of car that it is...306HP pushing a 3,600lb 4 door, rear wheel drive sedan...and I sold a 700+ HP Mustang to get into this.

iJDMTOY

iTrader: (5)

I agree with you but the GS is a big car so it makes sense.

bclexus

FYI - A 2008 Infiniti G35 (I chose a 2008 because it was exactly the same horsepower as the GS 350) weighs 8% to 10% (or ≃300 lbs to 400 lbs) less than the Lexus GS 350. The GS 350 and G35 have the same horsepower ratings at 306 horsepower, but the Lexus has 277 ft-lb of torque @ 4800 RPM versus only 268 ft-lb @ 4800 RPM for the Infiniti. The redline is 6,500 RPM for the GS 350, but a much higher 7,600 RPM redline for the G35. The G35 has a Final Drive Gear of 3.692 and the 5-speed automatic transmission has the following gear ratios: 1st: 3.841, 2nd: 2.352, 3rd: 1.529, 4th: 1.000 & 5th: 0.839 - of which we are most interested in the first two or three gears.

For comparison purposes, the G35 (in 1st, 2nd and 3rd gear) has the following ground speeds (see very bottom of this page) at its [significantly] higher 7,600 RPM engine redline. As you can see, the 2008 Infiniti G35's ground speed in 1st, 2nd and 3rd gears matches the Lexus GS 350 with a 6-speed transmission very closely at their respective maximum engine RPMs. It should be noted that the Lexus GS 350 with an 8-speed transmission has significantly shorter transmission gear ratios that upshifts even sooner at lower ground speeds than the 6-speed even though the final drive gear is taller. Thus, to say the; "GS 350's 1st gear sucks. It's lazy, long, and dog slow." is totally incorrect.

~~~~~~~~~~~~~~~~~~~~~~~~~~~

Lexus GS 350 (6-Speed)
Below are ground speeds at 6,500 RPM engine redline for all 6 gears (RWD - A760E 6-Speed Automatic):
(*Speed limiter is electronically governed at 142 MPH preventing max speed of ~170 MPH • **Engine will not reach redline in 5th or 6th gear)

1st Gear:
Tire Size: 265/35 x 19" = 82.6" Circumference
Final Drive Gear: 3.615
1st Gear Ratio: 3.52
Engine RPM: 6500 Redline = 41.6970892440055 MPH (Up-Shift Engages 2nd Gear @ 3940 RPM)

2nd Gear:
Tire Size: 265/35 x 19" = 82.6" Circumference
Final Drive Gear: 3.615
2nd Gear Ratio: 2.043
Engine RPM: 6500 Redline = 71.84226830097863 MPH (Up-Shift Engages 3rd Gear @ 4650 RPM)

3rd Gear:
Tire Size: 265/35 x 19" = 82.6" Circumference
Final Drive Gear: 3.615
3rd Gear Ratio: 1.401
Engine RPM: 6500 Redline = 104.76356469585963 MPH (Up-Shift Engages 4th Gear @ 4845 RPM)

*4th Gear:
Tire Size: 265/35 x 19" = 82.6" Circumference
Final Drive Gear: 3.615
4th Gear Ratio: 1.000
Engine RPM: 6500 Redline = *146.77375413889936 MPH

**5th Gear:
Tire Size: 265/35 x 19" = 82.6" Circumference
Final Drive Gear: 3.615
5th Gear Ratio: 0.717
Engine RPM: 6500 Redline = **204.7053753680605 MPH

**6th Gear:
Tire Size: 265/35 x 19" = 82.6" Circumference
Final Drive Gear: 3.615
6th Gear Ratio: 0.586
Engine RPM: 6500 Redline = **250.46715723361663 MPH

6th Gear - 50% of Redline:
Engine RPM: 3250 = 125.23 MPH

Maximum Torque: 277 ft-lb @ 4,800 RPM
Maximum Horsepower: 306 SAE net @ 6,400 RPM


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Lexus GS 350 (8-Speed)
Below are ground speeds at 6,500 RPM engine redline for all 8 gears (RWD - AA81E 8-Speed Automatic):
(Speed limiter is electronically governed at 142 MPH preventing max speed of ~170 MPH • **Engine will not reach redline in 6th, 7th or 8th gear)

1st Gear:
Tire Size: 265/35 x 19" = 82.6" Circumference
Final Drive Gear: 2.937
1st Gear Ratio: 4.596
Engine RPM: 6500 Redline = 37.66565457305995 MPH (Up-Shift Engages 2nd Gear @ 3855 RPM)

2nd Gear:
Tire Size: 265/35 x 19" = 82.6" Circumference
Final Drive Gear: 2.937
2nd Gear Ratio: 2.724
Engine RPM: 6500 Redline = 63.55042159243155 MPH (Up-Shift Engages 3rd Gear @ 4440 RPM)

3rd Gear:
Tire Size: 265/35 x 19" = 82.6" Circumference
Final Drive Gear: 2.937
3rd Gear Ratio: 1.863
Engine RPM: 6500 Redline = 92.92074525914309 MPH (Up-Shift Engages 4th Gear @ 5110 RPM)

4th Gear:
Tire Size: 265/35 x 19" = 82.6" Circumference
Final Drive Gear: 2.937
4th Gear Ratio: 1.464
Engine RPM: 6500 Redline = 118.24545656952431 MPH (Up-Shift Engages 5th Gear @ 5465 RPM)

5th Gear:
Tire Size: 265/35 x 19" = 82.6" Circumference
Final Drive Gear: 2.937
5th Gear Ratio: 1.231
Engine RPM: 6500 Redline = 140.62660310136764 MPH (Up-Shift Engages 6th Gear @ 5280 RPM)

**6th Gear:
Tire Size: 265/35 x 19" = 82.6" Circumference
Final Drive Gear: 2.937
6th Gear Ratio: 1.00
Engine RPM: 6500 Redline = **173.11134841778357 MPH

**7th Gear:
Tire Size: 265/35 x 19" = 82.6" Circumference
Final Drive Gear: 2.937
7th Gear Ratio: 0.824
Engine RPM: 6500 Redline = **210.0865878856597 MPH

**8th Gear:
Tire Size: 265/35 x 19" = 82.6" Circumference
Final Drive Gear: 2.937
8th Gear Ratio: 0.685
Engine RPM: 6500 Redline = **252.717296960268 MPH


8th Gear - 50% of Redline:
Engine RPM: 3250 = 126.35 MPH

Maximum Torque: 277 ft-lb @ 4,800 RPM
Maximum Horsepower: 306 SAE net @ 6,400 RPM

~~~~~~~~~~~~~~~~~~

2008 Infiniti G35

1st Gear:
Tire Size: 82.6" Circumference
Final Drive Gear: 3.692
1st Gear Ratio: 3.841
Engine RPM: 7600 Redline = 41.92 MPH (Up-Shift Engages 2nd Gear @ 4654 RPM)

2nd Gear:
Tire Size: 82.6" Circumference
Final Drive Gear: 3.692
2nd Gear Ratio: 2.352
Engine RPM: 7600 Redline = 68.459 MPH (Up-Shift Engages 3rd Gear @ 4941 RPM)

3rd Gear:
Tire Size: 82.6" Circumference
Final Drive Gear: 3.692
3rd Gear Ratio: 1.529
Engine RPM: 7600 Redline = 105.308 MPH (Up-Shift Engages 4th Gear @ 4971 RPM)

Maximum Torque: 268 ft-lb @ 4,800 RPM
Maximum Horsepower: 306 SAE net @ 7,600 RPM