I thought i knew...how hard can it be, you push the gas and Lexi goes...and you steer and look in your mirrors and use your turn signal and all that jazz...but...is there more?


According to my friend eric, when performing "spirited driving" in a car with an automatic transmission, you should release pressure on the accelerator when the tranny shifts. He says it is murder on the transmission if you dont do this. Is this true? Is it true for normal driving as well?

i thought i knew...

 

No, its pedal to the metal. Easing preassure off the accelerator can confuse the computer/tranny and it may mis-shift eventually, as the computer is freking lost "does he want to go or not??" lol

 

i agree on this, just mash it and let the computer handle the rest. it's smart enough to shift everything smooth for you

 

yeah, normal drive, just straight put your foot down and go. but in "spirited driving", i let it rev as high as i want it to, then i left off just a tad, not a lot at all, just a tad to let the tranny shift. Once it has shifted, i apply pressure again.

 

ArmyofOne, your friend is

 

LOL JAC

 

Some cars have an feedback between the engine-management computer and transmission ECU that momentarily cuts back torque automatically for smoother shifts regardless of throttle position. Other cars have a Normal-Sport (or Normal-Power) control that can vary the shift points and firmness.
Generally, the firmer the shift and the greater the shock, the more stress and pressure it puts on the transmission's innards...unless the transmission is slipping so badly that the fluid is overheating.
Whether your particular car is shifting harshly to the point where it will "ruin" the tranny remains to be seen.

 

Think about what this "friend" is suggesting.....instead of smmoth acceleration/shifts, he wants you to ease off the throttle at each shift point. Your RPMs will be all over the place. No smooth acceleration here!!!

 

Bingo woogie! thats what i was trying to say. thats what he meant i think.

i thought he was nuts when he said that too! i was like, that would have to confuse the computer.



it doesnt shift harsly at all. its smooth as silk. soetimes so smooth i cant even feel it. what worries me is that with ECT on, it shifts alot harder. i can feel every one of them, its liek an abrupt change in gear. no smooth transition, but i think that normal. i have a friend with a 94 LS400 and his does the same thing...

 

I think the rule for automatics is "stab it and steer it."

There's probably a joke in there somewhere.

 

I don't hink you need to do with with an auto though. Maybe he is used to that very slight break between shifts in a manual so he thinks it needs to be done on an auto too. I just step on it an let the computer do the work. Very smooth in my GS (once it is warmed up ) without my intervention between shifts.

 

i have been driving stick since i have driven. i have woned one auto, which was a work truck, i never drove it very much, onlyif i needed to haul something, and then i beat the PI$$ out of it. was a 1992 exlplorer.

so fo rthe last...

*counts on fingers*

6 years, i have been driving a standard. forgive my ingorance.

 

well, i guess all i can say is, if the computer is smart and good enough, you should just need to slam on the gas and when you reach red line, the computer will shift gear and so a smooth transition

now if the computer is not smart or fast enough, then i can see where it happens then you need to let go of gas a little so it can have time to shift before you bounce yourself off the rev limiter

it's just like the supercharger on the gs400. with the stock ecu (being off timing and stuff i suppose). if you just push on the gas from stop, expect the bounce on red line on 1st to 2nd

 

well, my car is 15 years old and doesnt have NEAR the computing power that even the 92 ES300 does. sop its understandable that it doesnt shift in time once in a while.

the fact that its 15 y/o asl keep sme from flooring it most of the time.

AND, my car seems to have no limiter. because i took it clear over redline, to about 7100 rpm's the other day on accident, getting on the freeway with the ECT on, ti was weird.

 

haha man in that case it could be a serious problem man maybe you should ease off on the gas a bit now