I am not a car person at all. If you ask me what a header is I will tell you it probably has something to do with the engine. (Really I have no clue WTF it is) I can change oil and spark plugs and that's about it.

So speak slowly ;-)

I want faster acceleration (GS350) I'm not worried about how fast the car can go as I have an issue getting to 120MPH in my Camry Hybrid and holding it before I have to slow down due to traffic. What I would like to improve 0-60 speed. I believe the GS350 is 5.7 0-60 and would like to bring that down. (I don't want to crack or damage anything. I want to be safe and avoid issues) What I would like is to step on the gas and GO with no hesitation

What should I do?

 

Get a different car. Because of the drive-by-wire throttle you will never get that instant go feeling. There's always going to be a hesitation before you start acceleration while the car adjusts for the sudden desired acceleration. Get a GS400 which is not dbw throttle.

 

This is not however true. For most novice, they don't know how DBW really works. While most blame DBW for the hesitation and the slow throttle response, it is not true. The manufacturer sets the throttle response table to be that way so that the car doesn't jolt ahead when the throttle is depressed. If you knew how to access the throttle map, you'll be able to change the sensitivity of the DBW, but I highly don't recomend it.

 

The car still jolts ahead it just takes about 1/4 or 1/2 of a second longer to do so. And yeah I wouldn't recommend messing with the throttle.

 

why not get a 3.76 torsen unit? that will move your power from the high end to the low end.

 

cohort, you mentioned the GS350 so I'm assuming you have a 3rd gen GS. You might want to try the 3rd gen GS forum instead

 

Why?

Is it because every time I step on the gas I will be jolted back even in stop and go traffic?

 

You know I saw the forum said performance so I thought that meant all GS models. I see now after you said something it's part of the 2nd gen. Sorry. If someone can move this to 3rd Gen so I don't start the same topic....

 

Why not look into a K&N filter and an exhaust?

 

What GS4 is not drive by wire? I own a '99 and mine is DBW.



Agreed. DBW certainly has way more advantages than disadvantages.

 

Are you sure? no gs before '01 have DBW.

 

98-00 GS has an electric motor on the throttle body. Take out your intake piping and look at the throttle body's butterfly. Pull the throttle cable and obvserve as you pull on it because the butterfly doesn't move at all.

Also another clue is the infamous throttle body position sensors and such. If we had a direct drive by cable wire system, we woudln't have the kind of trouble we have now. The cable would open the throttle plate directly. Lexus needs to adjust the voltage for the TPS otherwise the electric motor wouldn't operate correctly.

 

I thought drive by wire meant it does not have a throttle cable? 98 -2000 GS400 have a throttle cable and 01+ don't have have a throttle cable at all.

Can you have a cable and it still be a DBW?

 

Yip. DBW referrences that the throttle body is controlled by the computer, which is the case on my '99 GS4. The sensor for the throttle position is on the throttle body, so it would appear to be standard, but it is in fact drive by wire. I always thought it was a standard throttle body until my pedal position sensor went bad. The throttle pedal didn't do anything and I couldn't drive the car until I replaced the sensor. For the 01+ the pedal position sensor was changed from being to the throttle body to being inside the cabin.

Later,
-B

 

Ok I see now. Thanks.