STI DCCD + "Drifting tires" + 300+hp =
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Friendly Neighborhood Ogre
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!!!!Holy crap guys, today I was finally able to fully test out my subie's DCCD capabilities to it's fullest! I got a new set of Yokohama S-Drive tires which seem to be good drifting tire according to some of the drifting guys. Their grip is very progressive and predictable... They aren't the stickiest tires out there, but are still pretty sticky and have a great break away progression which I like a lot.
One of my Porsche friends owns a property just south of Modesto where he has a parking lot which is about 5 lanes wide, and about 150 feet long I'd say. It's nothing spectacular and he bought the property that way (it used to be a horse stable where people would rent stables and have shows sometimes) and because he doesn't need that parking lot for anything he uses is as a skid pad of sorts.
The surface of the lot is a pretty smooth black top, probably about the same as a standard street. He invited me to come out for some network business, knowing that I had an STi he called a couple more of his regular Porsche friends who showed up in a 93 911 turbo, and the other guy had a turbo 944 (I think it was an 86), and of course my friend who owns the place has a 2001 Carrera 4 with some engine and suspension mods. It was totally impromptu which was pretty cool.
It wasn't anything crazy or anything, just the 4 of us kinda in the middle of no where in some empty unmarked parking lot doing donuts, power slides, figure 8's, drifts... We had set up a few cones and did our best to powerslide through them and that was a lot of fun! Who knew that 4 cones could be so damn fun!?
I got a couple of pics which didn't turn out that great and are only stills of my car, so nothing too exciting... I soooo wish I had my flip cam on me! 
Anyway, the whole point of this thread was the fact that I got to fully experience the DCCD on my STi for the first time ever. I've used my DCCD in the past and can see a really large difference in handling, but I was never able to fully toy around with it and push my car as far as I did today.
I have to say, DCCD is the best thing ever! I knew it was great and I've always loved it, but I've never been able to see exactly how great it was until today! I tried everything but full lock out, and my favorite by far is full lock to the rear! I've had 3 subies in my life, a 2000 2.5RS which had tons of suspension mods and had a nice rear bias, a 2006 WRX which had suspension/sway bars and I thought that car had a nice rear bias as well... Now I have a fairly stock STi and when using the rear bias DCCD setting, it puts my two old cars to shame in terms of oversteer (good oversteer)I never thought that DCCD would make such a drastic difference, I mean, it feels like a totally different car when you're pushing it to it's limits...
I drove my friends 2001 carrera 4 which was a treat since I'm a huge Porsche fan... Man, the amount of uncontrolable oversteer was insane! Comparing the subie to the porsche was like comparing a banana to a book. Once you get used to the porsche you can control it nicely, but it takes a bit of work and practice due to the insane amount of oversteer/rear bias... With the subie the rear bias is so predictable and easily corrected, very forgiving and just easy to drive. The funnest thing we did today was the power slides, man, so great with the DCCD on full rear!
Combining full rear bias DCCD with some good "drifting tires" with an STi that has around 30-35 extra whp from stock = a lot of damn fun! Is there a way to equip a standard WRX or Impreza with DCCD? I know it's possible, but is it possible without spending like $2,000? It's def a mod that every performance subaru should have, from Imprezas to Foresters! I'd LOVE to see a GC8 with a DCCD setup! Now THAT would kick some serious butt!
Have you guys had a chance to test your DCCD to it's fullest? I've tried DCCD on the track (in an 04 STi) and it's great, but you REALLY notice it when doing things like described in this thread. I don't usually go around doing powerslides, donuts, etc since tires are so damn expensive and you mow through gas like no other, but since my tires aren't SUPER expensive compared to the crazy sticky tires I usually have and since it was all spur of the moment, I figured why not? I'm so glad I did!
I'd really like to see DCCD become a standard option on all Imprezas, even if it's expensive, I'd much rather pay for a DCCD unit then buy some body kit or something.
CLIFF NOTES: Got to try out DCCD to it's fullest today in a private parking lot and it was f'ing GREAT! Has anyone else had the chance to try out the DCCD to it's fullest like described in this thread? Also, has anyone added DCCD to a car that didn't come with it? Perhaps a GC8? I think a GC8 with motor swap and DCCD would be the coolest thing ever.
I honestly think that DCCD is by far the coolest feature on any known Impreza, ever.
(this is the first time Ive been out since I got injured on Sunday and man, it felt great to be out of the house even though I still look like the elephant man)
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Friendly Neighborhood Ogre
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http://driveperformancesubaru.com/ve.../blueprint.asp
not gonna lie, this really helped me understand the dynamics of what you were doing...
not gonna lie, this really helped me understand the dynamics of what you were doing...
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Yup, I can only imagine. I have not yet conducted this same test on mine, but I hope to soon. And with the increased torque split I've heard the '05 has, it should be even more fun. Wish I had a spare parking lot...
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Friendly Neighborhood Ogre
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http://driveperformancesubaru.com/ve.../blueprint.asp
not gonna lie, this really helped me understand the dynamics of what you were doing...
not gonna lie, this really helped me understand the dynamics of what you were doing...
Along with the mechanical components in the center differential, DCCD utilizes control units, sensors and switches from around the STi. Among them are the mode switch and control wheel on the console, throttle position sensor, parking brake switch, wheel speed sensors, ABS control unit, lateral G sensor with yaw rate sensor, rear differential oil temperature switch, brake light switch and instrument panel lights.
At the heart of it all, electronic control of a multi-plate transfer clutch in a center differential planetary gear set determines the torque split between the front and rear drive wheels. The split ranges from completely “free” (35/65 ratio) to “locked” (50/50 ratio). Clutch control is by an electromagnet. To lock the differentials, the clutch plates function to restrict torque to the rear axle, distributing more torque to the front. Lowering the torque restrictions frees up the ratio for more torque to the rear.
This feature alone makes the upgrade from WRX to WRX STi soooo worth it, not to mention the much better transmission, better interior features, more power, MUCH better brakes, and all the rest of the little upgrades here and there. If you were to do all that by yourself you'd be paying WAAAY more then $10k.
I got my STi for $28k out the door with 11k miles on it. 2007 late production model.
Last edited by brucelee; Aug 20, 2009 at 10:47 PM.
The DCCD is the one thing on my car that I have never played with and totally ignore... I think because of an article I read about how leaving it in auto is the best choise for fast lap times, and posible damage in full lock mode (I know it's not totally locked). I would'nt even know what way to turn it to have more fun. Please enlighten.
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yeah i had sdrives and you could get them to lose grip easily when powering properly out of corners...the rear slides nicely and it as fun...and this was with a stock 04 wrx
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Friendly Neighborhood Ogre
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