i can drive my big turbo STi smoother than i can the G...

the dbw gas pedal is just not mapped linearly. its like-

5% TPS = 1% throttle
10% TPS = 40% throttle
15% TPS = 45% throttle

etc

 

i would be overjoyed if a tsb came out for this.

to those that seem to think having a non linear throttle is "cool"... try taking a corner with a proper line, and then load the suspension as you should with some throttle tip-in after your pass your entry point and see what happens. the goosey throttle makes proper and linear suspension loading next to impossible every time. yeah, if you concentrate REEEEEAAAALLy hard and hover your foot over the 0-15% jump mark you can get it right, but all that does is SLOW YOU DOWN and make transitions more abrupt. you can lose traction this way, too.

so, again, this is NOT a performance characteristic. it's one of those things manufacturers think of doing to fool street drivers into thinking they have magically achieved higher performance.

this is akin to slamming a car to the ground. typically, the G forces you can take on the street go down from stock due to reduced bump-stop clearance and improper damping rates (not to mention alignment).

 

oh, and another artifact of this issue is, i have found that in DS mode you can confuse the DBW throttle with light-tip-in because the TBs will alternate between 0% and WFO (well, maybe no WFO but it sure feels like it) and then an oscillation occurs.

 

I don't think its cool. I haven't accidentally "launched" the car since the first couple days I've owned it. It was just something that didn't take very long at all to get used to.

I haven't taken corners using the out, in, out method yet since I've only been on relatively crowded public roads that have blind corners (curse those trees), but I'll certainly have to try it sometime.

 

I can't keep this car tamed, it always wants some action... never really bothers me though.. but once in a while i do miss the nice and smooth acceleration of our FX

 

i'm of the opinion that you shouldn't have to "get used to" the throttle on a car- it should just work intuitively. additionally, one of the main reasons DBW was implemented in cars was to solve driveability issues, not to create them. i find that irritating from an engineering standpoint.

 

is very different than:



Reflash isn't going to change it.

 

the TL is bottom hinged, as well...no problems there...

 

Yes, you shouldn't have to get used to it. And any pedal (top or bottom pivot) can have a linear response. Drive any bottom pivot Porsche and they'll have a linear response.

And ECU update can fix the DBW curve...

 

Yeah, it has nothing to do with the mechanical pivot, and has everything to do with the programing of how ECU reads each % of change.

 

learn to drive the car as it is! First day or two with the car took some getting used to. . .now its smooth as butter. . . and also jets off when need be . . .
not a problem but im pretty sure designed that way

 

i humbly concur with the other responses: it's most definitely not the bottom hinge. porsches have been like that for decades, and a lot of newer german cars have switched over some time ago. the bottom pivot actually makes a lot more sense than a top pivot because it follow the movement of your foot without the pedal actually having to slide along the surface of your sole.


it's the DBW.

 

i really don't see what the fuss is about to be honest with you, i think in a healthy way where everything is in my control. i don't blame the car for it being to sensitive, the driver can fix all that

 

then you aren't really understanding the responses from the other side.

non linear throttle will slow you down when you are *really* driving. throttle control is a wonderful thing. yes, you can try to compensate for it, but then you are using your mind on something you shouldn't have to be worrying about at all, and it detracts from the enjoyment of driving.

if you still disagree, then well... there's nothing else to be said on the subject is there?

 

My previous car was an ES 330 and the main reason I got rid of it was due to the hesitation issues. This is widely discussed on all Lexus sites. Press down on the accelerator and count to 3. Want to accelerate quickly into traffic or to get out of the way of an oncoming vehicle? Fuggetaboutit. Hell the pedal car I had as a kid accelerated better than that f***ing Lexus. Me, I'd much rather know that when I hit the accelerator, the car is going to GO, not think about it.

I've adapted my driving style to the car and she's just fine.