View Full Version : DSC Off
Va6li
10-31-2007, 05:14 PM
So after 2500k of owning the MS3, I tried the "turn off DSC/ traction for 5 sceonds before starting the car." for the 1st time.
The car def feels stronger betwen 1st and 2nd. Of course, no dyno to support the fact but 2500k of driving this car under "controlled" mode, it feels different.
I will try this tomorrow and throw my butt dyno into the mix.
numbnuts22715
10-31-2007, 06:57 PM
It feels faster because of traction control being turned off. As soon as the ecu sees that the wheels are losing traction, it slows itself down.
This is why..
aaronc7
10-31-2007, 10:37 PM
i feel its the same as just turning off DSC...some tests have confirmed that in 2nd gear you reach the same boost levels regardless whether DSC is on....just te DSC button is lit, both the DSC and TC, etc.
speed3shon
11-22-2007, 06:18 PM
i ran at the track, trap and et were higher with traction and dsc left on...
Jays07MS3
11-23-2007, 04:03 AM
I can't tell you if there is any power difference between DSC ON or OFF but I've done a few datalogs and boost, timing and throttle (as long as the tires aren't spinning) are the same. I don't think you're getting any more power but the car won't close the throttle on you if tires are spinning.
Va6li
11-23-2007, 06:50 AM
Noted.
Thanks.
pmeilakjr
11-28-2007, 12:37 AM
I have been to the track twice (Streets of Willow Springs) and there is a difference.
Both on - get the traction light throughout the course and reduced boost. However, the car handles pretty good at the limit and the computer keeps the rear in check.
DSC off - the rear wants to slide more and the car feels different, hard to describe but loose.
DSC and Traction off - car seemed more predictable, increased my time about a 1 second (approximately 100 feet), stock tires could not handle the power of acceleration in 3rd gear.
I suggest for the first couple of times you go to a track - keep them both on and let the nannies do their thing - your tires will thank you for it. I noticed considerable more wear on the tires when the DSC and TC was off and only gained a second.
I have about two moer track days left on the stock tires and then I need some new ones. There are a few more mods I want to make - Fuel pump upgrade and the DRZ engine mount.
Current mods are MS CAI, MS Sport Springs and Rx8 rims.
Cheers!
Peter
Habuzaki
11-28-2007, 05:00 PM
Only gained a second...that's huge, I'd say that was well worth it. But I do agree to have experienced drivers do this, you can get sideways in a hurry if you don't know what you're doing.
shark77
11-28-2007, 10:43 PM
Only gained a second...that's huge, I'd say that was well worth it. But I do agree to have experienced drivers do this, you can get sideways in a hurry if you don't know what you're doing.
He said "increased my time about a second." I assume with this statment he means he was slower.
Jays07MS3
11-29-2007, 02:11 PM
DSC and Traction off - car seemed more predictable, increased my time about a 1 second (approximately 100 feet), stock tires could not handle the power of acceleration in 3rd gear.
I suggest for the first couple of times you go to a track - keep them both on and let the nannies do their thing - your tires will thank you for it. I noticed considerable more wear on the tires when the DSC and TC was off and only gained a second.
I have about two moer track days left on the stock tires and then I need some new ones. There are a few more mods I want to make - Fuel pump upgrade and the DRZ engine mount.
Current mods are MS CAI, MS Sport Springs and Rx8 rims.
Cheers!
Peter
He said "increased my time about a second." I assume with this statment he means he was slower.
He actually said both but I think he meant "gained a second"
SuperStretch18
11-29-2007, 02:14 PM
Off topic sort of, but I was just wondering this with regards to TCS. Does it have any impact when you dyno? Example, does the ECU detect that the rear wheels are not moving and cut power? If so, how do you get around it? Just curious...
Jays07MS3
11-29-2007, 02:23 PM
Off topic sort of, but I was just wondering this with regards to TCS. Does it have any impact when you dyno? Example, does the ECU detect that the rear wheels are not moving and cut power? If so, how do you get around it? Just curious...
Thats a good question. When I dyno'd mine I left everything (DCS/TCS) on. I did get an ABS light after the dyno that stayed on for a few miles afterwards. I assumed it was due to the rear wheels not matching the fronts during the run. Can't really tell you if it made a power difference though. Next time I get it dyno'd, I'll do one run with it on and one with it off and log everything.
BluMicaR
11-29-2007, 02:36 PM
Only gained a second...that's huge, I'd say that was well worth it. But I do agree to have experienced drivers do this, you can get sideways in a hurry if you don't know what you're doing.
I had my rears break loose the first time just the other day around a seemingly average turn after picking up the 6 year old. It's kind of a dog leg type turn, maybe a 5% bank, not much at all, but I was going, I don't know, maybe 40? There was this 'feeling' I couldn't place at first because a) it was MUCH different than in my hippo TBird, and b) I haven't driven my TBird in like a year. The feeling was drifting, lmao. That was fun; I guess I knew but never liminally thought about the possibility of a FWD car swinging the ass-end out. It was weird, I've never drifted out a FWD, just RWD, and those were all heavy, my Akemi let go and grabbed pretty much without the same 'warning' signs a heavy, over-powered RWD car gives. Now I know, however... And knowing is half the battle.
I am used to feeling the car 'swing' out and 'swing' or 'grab' into the end of the drift/let go. This car just goes and comes back with none of that feeling at all because the rear is so light and the front is pulling that 'whip' feeling right out of the inertial applications on the driver.
pmeilakjr
11-29-2007, 02:49 PM
Sorry guys
Streets of Willow – Clockwise 1.800 miles 14 turns
Best time of the day with DSC and Traction Control = 1.37.108
Best time of the day without DSC or TC = 1.36.617
So actually a 1/2 second faster
Both runs without traffic and my times are pretty consistent throughout the day.
Stock brakes held up great – I need to push them a little more. Stock tires are a major concern – they are very predictable and grip fairly well however, they are now wearing fast and I think I might get some $150 Falken azinas as my next tire. Need more grip!
Cheers!
Peter
IrishMidak
12-17-2007, 02:32 PM
Ok, I tried this trick of turning dsc and traction control off by holding the dsc button down until the dsc light goes off again and I still had traction control kicking in. Has anyone been able to do this in snow and ice? Was a real let down having the tcs kick in when I was trying to get myself out of the snow.
Sierra117
12-17-2007, 02:34 PM
Hold it down as you are turning the car on.
mrlilguy157
12-17-2007, 02:36 PM
or turn on the car and push it quickly as they are both lit on the cluster. not hold, just push once.
IrishMidak
12-17-2007, 04:55 PM
Ok, I got it now. Need to hold the button down before starting and get both the DSC and TCS lights to stay on. Could have really used this 3 nights ago.
cosmic_spd3
12-17-2007, 05:16 PM
When Ur Driving In Snow Wouldnt U Want The Tcs Or The Dsc Working Or On??
ill_eagle94
12-17-2007, 07:52 PM
When Ur Driving In Snow Wouldnt U Want The Tcs Or The Dsc Working Or On??
Not if you're stuck, apparently.
IrishMidak
12-18-2007, 10:58 AM
When Ur Driving In Snow Wouldnt U Want The Tcs Or The Dsc Working Or On??
When on the road, absolutely but when stuck in certain spots, it's sometimes easier if you can burn through the snow. For me, it was stuck on a dirt road covered with ice and 8 inches of powder, trying to reverse my way out but the TCS kept killing my momentum. Also, the hill I am on requires a good running start to get to my driveway in snow and then being able to turn when you get to it. The TCS messes me up at the top where twice it caused me to stall out right at the driveway, which could have caused me to then slide backwards.
neoshade
11-05-2009, 02:29 PM
A horrbile warning to all the fans of DSC off
I thought DSC was only a burn-out-throttle-down thing, didn't realize I was shutting off the entire torque ratio management system.
I toasted the kid in the Honda next to me at a light, and then hit the brakes, came to a corner, and powered through it as usual.
Without DSC, the car went into catastrophic understeer, and slid right out of the turn like a Ft-wheel drive car w/ too much power, bouncing my baby right off the curb for about $2000 in damage to the strut, wheel, tire, bearings and tie rod.
Ouch.
Keep it on.
AutoEuphoria
11-05-2009, 03:47 PM
I thought DSC was only a burn-out-throttle-down thing, didn't realize I was shutting off the entire torque ratio management system.
Dynamic Stability Control...keeps the car stable? Who would have thought...
Sorry about your accident, though...I did that once in my SVT Focus, but it was ice induced rather than a heavy foot.
8.5MS3
11-05-2009, 03:52 PM
holy dead thread revival.......
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