Sst

Becky04LS

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Welp I know I should of asked this question a long time ago but what is the SST feature? I know they have it in other cara but How does it work in a 04 v8 ls? What is the difference between SST 1, 2, 3 etc.? When should I use it? Or should I even use it at all? Ever since I got my car I've only driven it in D5 and occasionally D4. Sorry for the stupid question but I'm pretty car-challenged..
 
It's your manual overide shifting ability.

It allows you to remain in the gear you want or need.

however, you are going to find that if you don't listen to the engine or watch the RPM's
you may hang in gear too long.

Good for when you want to stomp on it and get the higer revs before sinking into the next gear.

Driving it normally in D5 or D4 is the way to go.
You can use SST for when you are coming off the off ramps a little too hot and wish to slow
the car down without using the brakes.

You can also use SST to kinda ride at slower speeds in a more progressive way as apposed
to letting Automatic D5 kick it into overdrive prematurely.

Really, it's just a little fun feature, specially when doing time trials.

Whats those RPMS when using the SST though.


http://www.lincolnvscadillac.com/showthread.php?t=36696
 
I use it when getting on the interstate because the tranny will shift into 5th on the turn, I just keep constant throttle and tap it down a gear once I get on the straight. That way there's no big jerk like when you plant your foot.
 
I use it when getting on the interstate because the tranny will shift into 5th on the turn, I just keep constant throttle and tap it down a gear once I get on the straight. That way there's no big jerk like when you plant your foot.

That's when I love my LS the most, expressway on ramps.
 
SST keeps the TQ locked at all times as far as I can tell. Maybe not in 5th..

I use mine on on-ramps as well. I hate having to mash the gas to get the car to downshift. I wouldn't use it to slow down though. Brakes are cheaper than a transmission.
 
... I wouldn't use it to slow down though. Brakes are cheaper than a transmission.

I very much disagree. In the mountains, you can overheat your brakes to the point that they won't stop the car. In that case, their failure becomes much more expensive than the transmission.

I don't understand the thought that using the transmission to slow down is bad for it anyway. You feel it's strong enough to accelerate the car, but not to decelerate it? Did you know that when you are cruising along and you take your foot off the gas, all fuel to the engine is shut down and the transmission is working backwards and keeping the engine and accessories (like the AC) turning? It goes between pushing the car and being pushed by the car all the time.
 
What I meant was using the transmission as a way of significantly reducing speed, e.g. downshifting to slow down when coming to an intersection, rather than shifting down a gear to maintain speed on a descent. I have always been told it's not the ideal thing to do.
 
It is handy when going down long, steep inclines though.

We drove Pike's Peak about 10 years ago and I used (SST) 2nd and 3rd the whole way down. There is a brake heat checkpoint just over halfway down. A ranger uses a laser thermometer to check the temp of the front brake rotors. He was surprised that my temps were in the low 100º range. He queried me as to why the temp was so low. I told him the only time I used my brakes was to stop at his station. The car that fails the heat test (IIRC the cut-off was ~300º; don't quote me) is required to wait at least 10 minutes to brake allow cooling.

What I meant was using the transmission as a way of significantly reducing speed, e.g. downshifting to slow down when coming to an intersection, rather than shifting down a gear to maintain speed on a descent. I have always been told it's not the ideal thing to do.

Well.... I've done that in a manual all my 40 years of driving.
 
interesting...my LS doesn't seem to like to downshift when in SST.

It won't; unless you're in 4th or 5th and you come to a stop, in which case the trans will shift to (IIRC) 2nd (maybe 1st on the 2nd gen). In manual mode (SST) as long as you're moving the only gear available is the one selected. The car will neither up nor down shift. If you're accelerating you will bounce off the rev limiter.
 
It won't; unless you're in 4th or 5th and you come to a stop, in which case the trans will shift to (IIRC) 2nd (maybe 1st on the 2nd gen). In manual mode (SST) as long as you're moving the only gear available is the one selected. The car will neither up nor down shift. If you're accelerating you will bounce off the rev limiter.

oh yes i know. I mean when i downshift manually with SST i get a massive jerk accompanied by loud thud. Not so much from 5 to 4. But from 4 to 3 unless im doing like 30-35mph. and 3-2 unless im doing like 20 ish and 2-1 unless im doing under 10mph. Of course during normal SST driving its not an issue slowing down enough to prevent the jerk/thud, but say you're street racing and need to get the your RPMs up quickly...not that i ever do this :shifty:

Both of my trannys did this, so i'm inclined to think nothing is wrong. In d4 and d5 drives fine for the most part .

Maybe I just don't know how to drive SST, or does anyone else experience this?

Oh and its from 4 down 1 and from 5 down to 2 then 1 when you come to a stop.
 
We drove Pike's Peak about 10 years ago and I used (SST) 2nd and 3rd the whole way down. There is a brake heat checkpoint just over halfway down. A ranger uses a laser thermometer to check the temp of the front brake rotors. He was surprised that my temps were in the low 100º range. He queried me as to why the temp was so low. I told him the only time I used my brakes was to stop at his station. The car that fails the heat test (IIRC the cut-off was ~300º; don't quote me) is required to wait at least 10 minutes to brake allow cooling.



Well.... I've done that in a manual all my 40 years of driving.

That's how I was taught, and how I drove until I inherited my first automatic from my wife (the '00 Lincoln LS).
 
oh yes i know. I mean when i downshift manually with SST i get a massive jerk accompanied by loud thud. Not so much from 5 to 4. But from 4 to 3 unless im doing like 30-35mph. and 3-2 unless im doing like 20 ish and 2-1 unless im doing under 10mph. Of course during normal SST driving its not an issue slowing down enough to prevent the jerk/thud, but say you're street racing and need to get the your RPMs up quickly...not that i ever do this :shifty:

Both of my trannys did this, so i'm inclined to think nothing is wrong. In d4 and d5 drives fine for the most part .

Maybe I just don't know how to drive SST, or does anyone else experience this?

Oh and its from 4 down 1 and from 5 down to 2 then 1 when you come to a stop.

Do you have a tune from torrie or no?

Mine use to do that also, bad! It would make a loud jerking sound and would even hurt my back from the sudden jerk. This actually got a little worse with ILLS's tune, he tuned the transmission on the aggressive side. Then when I got torrie's tune, the tranny felt so smooth and solid. Even in sst, it was great.It was funny, when I would use sst with torrie's tune, I was so use to getting tense and ready for the shift jerk that I would still tense up when shifting eventhough it was smooth.

Now with the dyno tune, it still pulls great. I was going to get my tranny fixed before taking it down for the turbo but when I got torrie's tune, since it did wonders for the tranny, I just left it like that until it began to act up again. Mine use to jerk real bad when shifting to reverse, but not after torrie's tune or the current one.
 
We drove Pike's Peak about 10 years ago and I used (SST) 2nd and 3rd the whole way down. There is a brake heat checkpoint just over halfway down. A ranger uses a laser thermometer to check the temp of the front brake rotors. He was surprised that my temps were in the low 100º range. He queried me as to why the temp was so low. I told him the only time I used my brakes was to stop at his station. The car that fails the heat test (IIRC the cut-off was ~300º; don't quote me) is required to wait at least 10 minutes to brake allow cooling.



Well.... I've done that in a manual all my 40 years of driving.

Two weeks ago, I went up north to a city on the other side of the mountain. 25 minutes up the mountain and 25 down. I started to use the brakes on the way down but just switched over to sst, worked out great. On the way back, I used sst all the way, it was fun. I would speed up on around corners but let the tranny brake for me after I got too fast.
 
My SST shifts used to be harsh, but after repeating them a few times, they smoothed out. Someone on here suggested that approach and it always works for me.
 
You mean the tranny learn your shift pattens?

I tried that a few times, it shifted differently once it learned my driving, but it did not smooth out.

This was mainly going from 3 to 4 and into R
 
yes i have the torrie tune. Currently running the aggressive one, but its the same in the other tunes as well as stock on the downshifts. Upshifts are def more aggressive and noticeably different than stock.
 
I have always used a gear change to maintain speed on a decline as well.

Those harsh shifts when downshifting usually happen when you are not in the ideal range for the gear you are selecting.
 
I have always used a gear change to maintain speed on a decline as well.

Those harsh shifts when downshifting usually happen when you are not in the ideal range for the gear you are selecting.

That too, but by jerking I thought he meant his tranny was off, not that he was close to red line on 3rd then downshifted,or somehting along those lines, that wouldn't be pretty.
 
You can use SST for when you are coming off the off ramps a little too hot and wish to slow the car down without using the brakes.

... I wouldn't use it to slow down though. Brakes are cheaper than a transmission.

I very much disagree ... You feel it's strong enough to accelerate the car, but not to decelerate it?

what i meant was ...

pwned.jpg











... harsh shifts when downshifting usually happen when you are not in the ideal range for the gear you are selecting.

+1

Yup, it's a matter of having the engine RPM match the speed of the car ... often referred to as "matching" your engine rpm to your road speed
 
Matching as in the red line? Lol

Umm I use the highway everyday. I need to pass the morons. I wanna use it. Is there like a tutorial video or something?? Tried using it and almost had a heart attack. I'm sorry; I got this car and still don't know 100% about it.
 
Is there like a tutorial video or something?? Tried using it and almost had a heart attack. I'm sorry; I got this car and still don't know 100% about it.

Welcome to the form.

If you don't have an OWNERS MANUAL you can download it from TECH ARTICLES at the top of the page.
 

Nah, not pwned. I have an open mind and don't mind learning new things. I'm not gonna be a sour puss about it like a certain troll clown around here ;)

Thanks for the clarification gentlemen.
 

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