2015 WRX and STi - Subaru WRX Forum
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#1 Old 11-15-2013, 08:00 AM
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2015 WRX and STi

So I've been reading a few articles about the new WRX, and there are a few things that may go either way. It seems that they are getting a cvt, which I guess is ok because they had an automatic version previously. If it can be tuned, ie set different preset ratios, that would be awesome. Who wouldn't want 15 shift points to keep it right in full boost all the time.
It seems to be strange to me that the STi gets a 2.5 and the wrx gets the 2.0 out if the brz.
I'm waiting to see what subi unveils at the la auto show next week.

Shifting Becomes Variable For 2015 Subaru WRX | The Truth About Cars

That's one of the articles I found

What do you guys think of the addition of the cvt?

Shane
2010 WRX
2003 Jetta 2.5
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#2 Old 11-15-2013, 08:35 AM
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Well the auto WRX was an extinct species to begin with so offering one at all is a bonus. CVT's will gradually replace all automatics.

Subaru already makes 2.0 and 2.5L versions of the FB engine but I am almost suspicious that the STi powerplant might continue to be an EJ257.

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#3 Old 11-15-2013, 08:46 AM
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Trying to make the gap large between the 2. We already knew that though

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#4 Old 11-15-2013, 09:08 AM
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Would it be possible to "tune" the cvt? I know the forester XT has a manual mode that goes to specific ratios, could you change them or add more?

Shane
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#5 Old 11-15-2013, 11:49 AM
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Yes. You can also tune the DCCD controller and the ABS response, not that anybody does.

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#6 Old 11-15-2013, 12:05 PM
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This is the typical product differentiation between the WRX and STi. They are going to be amazing!

The 2015 Subaru WRX STI Better Look Exactly Like This Render
The 2015 Subaru WRX STI Better Look Exactly Like This Render

Laszlo - blue '04 WRX
Meet the turbocharged rally-bred Subaru WRX.
blue '09 STi - lease return
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#7 Old 11-15-2013, 01:36 PM
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Quote:
Originally Posted by mosc View Post
Yes. You can also tune the DCCD controller and the ABS response, not that anybody does.
How can you tune the dccd? Like what would you tune it to do?
Also why would you tune the abs?

Shane
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#8 Old 11-15-2013, 02:23 PM
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Originally Posted by Haw1es View Post
How can you tune the dccd? Like what would you tune it to do?
Also why would you tune the abs?
I'm wondering the same thing....In to hear the answer!
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#9 Old 11-15-2013, 02:46 PM
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It's a computer. It can be reprogrammed. DCCD works based on sensor input shifting the front to rear power. You could reprogram it to add more 50/50 bias in auto mode, for example.

ABS systems are designed for specific brake characteristics and should really be reprogrammed when dramatically different sized calipers are used, not that people do. It's another reason why big brake kits are such a bad idea for a street car (they mess up the functionality of the ABS computer). Most track cars just disable the ABS so they could care less.

Almost anything with a chip these days runs code stored in some form of memory. In a discrete application, it's typically programmable read only memory which comes in many different forms. If you know specifically what to do, you can re-flash the prom to adjust parameters.

Not many people fool around with these things so there isn't much knowledge out there on which pieces of memory to play around with for which purposes. That doesn't mean it can't be done.

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#10 Old 11-15-2013, 03:31 PM
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That's cool. I figure anything or most anything can be reprogrammed.
Ok, so off topic question now. How does enlarging the calipers cause the ABS to not work right? Is it an increase in caliper pressure? Would that cause the abs brain to think there is more braking pressure/force than stock and have it back off? I can see how this would get dangerous, but even for a street car would a big brake kit be "safer" in that you would get more braking force and therefore more control of your car?

Shane
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#11 Old 11-15-2013, 05:00 PM
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New 2015 Subaru WRX / STI equipment list
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Laszlo - blue '04 WRX
Meet the turbocharged rally-bred Subaru WRX.
blue '09 STi - lease return
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#12 Old 11-16-2013, 10:55 AM
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Just read that the Wrx will now come with the 6mt.
Too bad it's fuqin ugly

Randy-
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#13 Old 11-16-2013, 11:40 AM
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If only it was available in yellow, that would make it better
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Shane
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#14 Old 11-16-2013, 03:41 PM
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#15 Old 11-17-2013, 11:39 AM
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Quote:
Originally Posted by General-Leo View Post
The STI will have 300 bhp? It loses 5 hp? What happened to all this talk of a electric pre-turbo and more top end on the actual turbo? Just like everything else in life....its all lies. No real changes beside aesthetics.

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