'06 WRX has 6500 rpm redline.... hmmm why?

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Old Aug 17, 2005 | 05:48 PM
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'06 WRX has 6500 rpm redline.... hmmm why?

Swung by the dealership to check out the '06 WRX. Pretty sweet. Leather interior and stuff now. 17" wheels. Factory 4-pots up front and 2 pots in the rear (although I hate those old, fixed, iron brakes. The '05 LGT brakes are much better in every possible way...seriously).

2.5 liter. Interesting to see the Forester XT intercooler (short top-to-bottom but wider than WRX with a plastic end tank) on there and an electronic throttle body.

REALLY weird to see a 6500 rpm redline!!!!!!! WTF?!?!?!?!

It really worries me that it is as such because of a change to the internals or the heads, rather than simply a tuning thing. It makes sense to me that Subaru might have chosen to put cast internals or a weaker valvetrain on there to make sure there was a differentiation worth $10,000 between the WRX and the STI... otherwise with 4 pot brakes, 17" wheels, upgraded suspension, stronger tranny, and identical 2.5L to the STI it wouldn't make sense for a lot of people to spend that extra $10k when they're going to be replacing the turbo/intercooler/injectors anyway and can just build an STI from the now-beefed-up WRX....

...but it's all speculation from me.... Anybody hear anything semi-concrete?!?!?


Jeremy


...and some pics just cuz...

New color (steel gray metallic):



Wheels/brakes:



4 pots:



2 pots:



Ooooh leather, + heated, + sunroof also...



6500 what?

Old Aug 17, 2005 | 05:49 PM
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...and yes, it's Steven's Creek and no, I would never, ever buy anything there or bring my car there...
Old Aug 17, 2005 | 05:51 PM
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Of course the other possibility is that it's still the same engine but the TD04 runs out of breath so incredibly badly up top [and the peak HP comes sooner] on the 2.5 that Subaru lowered the redline just to keep the powerband appropriate.....
Old Aug 17, 2005 | 05:55 PM
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So its still a TD04 on that 2.5l??? That'll make for an interesting powerband.
Old Aug 17, 2005 | 05:55 PM
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were all the MT's 6500 as well?
Old Aug 17, 2005 | 06:08 PM
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Yeah, they're all 6500.

Okay, maybe I posted this thread a bit prematurely. I did a bit of research and it turns out that the FXT has always had a redline [as painted on the gauge] of 6500 rpm. Apparently so does the LGT.

My final decision is that it's simply tuned like that because the smaller turbo cannot maintain the same kind of top end on the 25% larger engine with higher compression than the EJ20.

It has been essentially confirmed that the FXT and LGT turbo engines are identical to the STI's engine. The rumors have it that the new WRX gets the FXT engine and beefed up (dual cone synchros on 1st, stronger case, better ratios) transmission. I belive this considering the FXT intercooler is in the WRX now for no apparent other reason.

So there ya go, I think it's just tuning-related

Jeremy
Old Aug 17, 2005 | 06:09 PM
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that looks like an automatic, at least from the gauge cluster, maybe thats why there is a 6500 redline?

What's the forestor XT's redline?
Old Aug 17, 2005 | 06:09 PM
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I don't care what the redline is as long as the power is still there. Does this motor put out 227 still?
Old Aug 17, 2005 | 06:10 PM
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Nah it's rated at higher. 230 I think? It's really the torque that has jumped up a whole bunch. The car's definitely going to be faster than the 2.0....
Old Aug 17, 2005 | 06:25 PM
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The new Legacy GT's come with the 6500rpm redline too, which I found very disappointing.

I heard rumors that it was roughly the same motor, so that might account for it.
Old Aug 17, 2005 | 06:27 PM
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its probably cuz if they did a pull all the way to redline the power might be slightly higher.

Sometimes car companies want to keep it down
Old Aug 17, 2005 | 06:37 PM
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Originally Posted by EJ20Legacy
...and yes, it's Steven's Creek and no, I would never, ever buy anything there or bring my car there...
whats wrong with steven's creek sub?
Old Aug 17, 2005 | 06:38 PM
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Originally Posted by 02BlackWRX
its probably cuz if they did a pull all the way to redline the power might be slightly higher.

Sometimes car companies want to keep it down

Is that true for turbo cars? Since usually the turbo tapers off before red so peak power and torque is before redline...

though, the point is true to keep insurance rates down on the car and make it more appealing that way a lot of companies do that...
Old Aug 17, 2005 | 06:42 PM
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Originally Posted by XBXRX
whats wrong with steven's creek sub?
Do a search in this forum.
Old Aug 17, 2005 | 06:45 PM
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That's not true. ZOEB STFU. I look forward to getting my 4 POTS minus the shipping frieght.



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