The mystery DCCD switch
#1
VIP Member
Thread Starter
Join Date: Nov 2004
Location: Japan, where the term "JDM" doesn't exist
Posts: 270
Car Info: '94 WRX, '97 Forester S/Tb, '95 WRX-RA
The mystery DCCD switch
I just bought a '98 STI Coupe here in JP. When I was test drving it, I noticed that there was a small thumbwheel in the center console that said C-DIFF above it. Now, this is going to be my 3rd WRX (first STI) I have owned in the past 3 years, and my other 2 don't have this. I have read about the DCCD on other forums, and how its has people hyping over it, but I never read too in depth because I didnt have one at the time. The wheel goes from what looks like a low to high setting, depending on how much you advance the wheel. Exactly how will the low and high settings affect the drive and the feel of the tranny?
#2
ok i'm no expert but from what i understand of the DCCD in simple term is that it can allow u to manually control the torque split of the car, in that u can change where most of the power is coming from so u can make the car act like a rear wheel drive car by sending most of the power to the rear wheels or even it up a bit by splitting it more evenly between front and rear wheels. it therefore alllows u to optimise the car to ur driving style and the situation ur in while driving. dont know if this helps but thats what i can tell u
another good forum is scoobnet...u could try posting in the drivetrain section if u want more opinions. by the way how is the car performing is a type R STi o r22B? all the best with it
another good forum is scoobnet...u could try posting in the drivetrain section if u want more opinions. by the way how is the car performing is a type R STi o r22B? all the best with it
#3
VIP Member
Thread Starter
Join Date: Nov 2004
Location: Japan, where the term "JDM" doesn't exist
Posts: 270
Car Info: '94 WRX, '97 Forester S/Tb, '95 WRX-RA
That sounds about right. I have been messing around with it at different settings the past couple days. If I make a turn when its full locked, the tires on the outside of the turn scrape along as if theyre trying to fight against the diff. If I launch it when its full locked, I end up having to reorganize up my CD collection that just got smashed up against the rear window. About a quarter turn from the lowest setting has been feeling pretty good for daily driving. It's a type R, and its runs great. It's big step up from my other WRXs, and this thing is still completely stock. I just can't wait until I swap all of the parts over. I began gutting the interior today, starting what will be a 3 month project. I'll probably post pics when its finished this spring. Thanks for the info!
#7
VIP Member
Thread Starter
Join Date: Nov 2004
Location: Japan, where the term "JDM" doesn't exist
Posts: 270
Car Info: '94 WRX, '97 Forester S/Tb, '95 WRX-RA
I will be taking it to the track a few times this coming year, but not really anything that will tear it up. Just a few laps every now and then, so I can "enjoy the machine", as you said. It looks like the stock boost is at 1.2-1.3 bar (17-18psi). I don't consider this to be %100 correct because my only way of measuring is through a sh*tty little boost gauge (serious, this thing is smaller than a silver dollar) that somebody put on the steering column. When I open this baby up, there is no way in hell I can look down and close enough to get a good reading with the way this thing pushes you back in the seat and makes you go crosseyed for a moment. No B.S. I ordered a triple gauge pod from Defi yesterday, (the direct replacement for the clock) so I don't have to drill holes in my A pillar. When I get that thing in after the new year and my Defi gauges reinstalled, ill let the control unit take a peak boost reading for me, and I can get back to you with more accurate numbers.
#8
VIP Member
Thread Starter
Join Date: Nov 2004
Location: Japan, where the term "JDM" doesn't exist
Posts: 270
Car Info: '94 WRX, '97 Forester S/Tb, '95 WRX-RA
Originally Posted by Scott@S-S
do you just have the dial and no switch ?
I am unfamiliar with the DCCD controls on pre USDM STIs
I am unfamiliar with the DCCD controls on pre USDM STIs
#10
VIP Member
Thread Starter
Join Date: Nov 2004
Location: Japan, where the term "JDM" doesn't exist
Posts: 270
Car Info: '94 WRX, '97 Forester S/Tb, '95 WRX-RA
I haven't seen anything about the v9 yet. I will be going to the Tokyo auto salon this coming year, and you know I'll be looking for anything Suby. Any good pics I take will be posted.
Thread
Thread Starter
Forum
Replies
Last Post
slow04wrx
NorCal Classifieds
17
01-11-2013 04:04 PM
tbonetristy
Suby Shopping & Maintenance/Warranty
0
09-07-2006 02:06 PM