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Old 10-14-2004, 01:53 PM   #1
snowman4us
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Default 2006 WRX and STi performance insider

talked to a SOA Tech. today(he was teaching some local subaur tech. about some new stuff, in my Brake Class) well i had a chance to talk to him today...

some things he told me about the STi and WRX that are comming out in 2006.

WRX, will get the 2.5 liter, he said that is so that the car is more drivable, and to get the low end power that the 2.0 lacks, im not sure if the boost is going to stay the same or not, but if the boost stays the same....the HP ratings will be around 250.

STi, well as some of you know the new H6 engine has AVVT(i belive that is what its called), well the H6 has a better system in it then the STi. The STi's valve timing only effects the Degree of the cam(10 degrees). but on the H6 it also affects the Lift of the cam as well. He said that it looks like the 2006 STi might be getting the Cam lift put in as well...i also asked him about putting the valve timing on the Exaust cam, and he said that due to the Emitions Standards ill most likely never happend.

these is what the SOA Master Tech. told me...
hope that some of this stuff is new, i never heard of it, so i thought ide post it up.


kirill
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Old 10-14-2004, 02:07 PM   #2
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Excellent. Then the modders can leave the Legacy GT alone and go back to buying WRXes.

Kevin
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Old 10-14-2004, 02:23 PM   #3
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Default That's great news!

I've long hoped that a 2.5 WRX would occur!

Bob
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Old 10-14-2004, 02:28 PM   #4
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so when will the 2006 go on sale?
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Old 10-14-2004, 02:34 PM   #5
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"Coming out in 2006" means, I believe, it would be a 2007 model--typically Subaru would release a 2007 model late spring or early summer of 2006.
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Old 10-14-2004, 02:35 PM   #6
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the reliablity of the 2.5 still has not been proven...I'll still take the JDM 2.0 over the USDM (gotta be bigger) 2.5
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Old 10-14-2004, 02:52 PM   #7
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Quote:
Originally Posted by HeMan1320
the reliablity of the 2.5 still has not been proven...I'll still take the JDM 2.0 over the USDM (gotta be bigger) 2.5


Have fun with antiquated technology for no good reason.
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Old 10-14-2004, 02:54 PM   #8
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Quote:
Originally Posted by HeMan1320
the reliablity of the 2.5 still has not been proven...I'll still take the JDM 2.0 over the USDM (gotta be bigger) 2.5

No, it has only been proven to be more reliable than the US 2.0, and withstand horsepower and torque numbers well over 400.
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Old 10-14-2004, 02:55 PM   #9
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hmm.. 2006 WRX might be in my future then.. to compliment the 2005 GT Ltd

i REALLY hope it has the 6 speed.. lol
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Old 10-14-2004, 03:31 PM   #10
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Quote:
Originally Posted by HeMan1320
the reliablity of the 2.5 still has not been proven...I'll still take the JDM 2.0 over the USDM (gotta be bigger) 2.5
Well, I have to agree...sort of. What automatically poped into my head was rally. Not quite sure, but doesnt group N. require a 2.0?
For some odd reason, Id prefer a higher reving 2.0 than a 2.5.

While engine matters are big, I think the tranny is much more important. With 250hp it just increases the risk of blowing the tranny. While 6speed would be desirable, I think SOA will save the 6speed for the STi.

-Mark
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Old 10-14-2004, 03:36 PM   #11
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Quote:
Originally Posted by Oldnslow
"Coming out in 2006" means, I believe, it would be a 2007 model--typically Subaru would release a 2007 model late spring or early summer of 2006.
no...im sure its for the next WRX, so MY2006, not 2007....

i would also have to take the JDM 2.0 over our 2.5....the JDM has valve timing on both the exasut side and intake side, unlike our STi that only has it on the Intake side...
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Old 10-14-2004, 04:43 PM   #12
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Quote:
Originally Posted by Rallycarperson
Well, I have to agree...sort of. What automatically poped into my head was rally. Not quite sure, but doesnt group N. require a 2.0?
For some odd reason, Id prefer a higher reving 2.0 than a 2.5.

While engine matters are big, I think the tranny is much more important. With 250hp it just increases the risk of blowing the tranny. While 6speed would be desirable, I think SOA will save the 6speed for the STi.
AFAIK, both Group N and the FIA WRC limit displacement to 2.0. Rumor has it that the FIA will possibly ban turbo charging in the future. Hopefully if that happens, engine displacement will be allowed to go up. I would be sorry to see the 2.0 go the way of the dodo. It was what tied the WRX to its rally roots. It is just we Americans love torque too much, I guess.

As for the 6 speed, I can't see where we can't get a basic 6 speed and save the DCCD'd 6 speed for the STi (to keep it special).
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Old 10-14-2004, 04:51 PM   #13
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Quote:
Originally Posted by johnny_mastin
As for the 6 speed, I can't see where we can't get a basic 6 speed and save the DCCD'd 6 speed for the STi (to keep it special).
If the 5-speed can take the torque (which it can), I'd rather have a 5-speed and save about 100lbs.

Plus, the 6th gear isn't made for fuel economy, nor do the engines have such narrow powerbands that tight gears are necessary...
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Old 10-14-2004, 05:01 PM   #14
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if the 2.5 that the 07 wrx uses is the same block as our 04-05 sti block that means theres gonna be some h6 swaps in the future.
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Old 10-14-2004, 05:59 PM   #15
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geez its 4 hrs late but

i call BS on all of those things

the only thing close is the avcs (for the new 3.0R) which is avcs on both intake and exaust cams
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Old 10-14-2004, 06:11 PM   #16
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Quote:
Originally Posted by Jaxx
geez its 4 hrs late but

i call BS on all of those things

the only thing close is the avcs (for the new 3.0R) which is avcs on both intake and exaust cams
yeah ill believe this when i see it
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Old 10-14-2004, 06:26 PM   #17
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Did the insider say anything about a STi wagon (Impreza or Legacy)?
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Old 10-14-2004, 07:03 PM   #18
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Maybe Worm is back......
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Old 10-14-2004, 08:37 PM   #19
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You mean the same worm that claimed that there was no way Subaru would ever put a 2.5 in the yet unreleased STi?
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Old 10-14-2004, 09:46 PM   #20
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Quote:
Originally Posted by snowman4us
no...im sure its for the next WRX, so MY2006, not 2007....

i would also have to take the JDM 2.0 over our 2.5....the JDM has valve timing on both the exasut side and intake side, unlike our STi that only has it on the Intake side...
Nope...try again.
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Old 10-14-2004, 09:46 PM   #21
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Quote:
Originally Posted by STi-MAN
if the 2.5 that the 07 wrx uses is the same block as our 04-05 sti block that means theres gonna be some h6 swaps in the future.
What?
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Old 10-14-2004, 09:47 PM   #22
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Quote:
Originally Posted by Coati
Did the insider say anything about a STi wagon (Impreza or Legacy)?
i didnt even think about it....i just got talking to him about technical stuff....
and i belive this guy, he saw increadably smart w/ the engines, and knew everything about every subaru engine. i saw him teach the tech. how to tear down the EJ20, EJ25 sohc, EZ30, all from memory.
seems to me like the guy was a SOA tech. to me, he even knew everything about the JDM engines and Australian...
if its not the 2006 WRX 2.5 ill be the 2007 almost for sure. he said that the EJ20 strugles way to mutch down bottom, and without having to put more boost or more high tech. stuff into the engine, the easyest way is to increase displacement...you know how the old saying goeas...
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Old 10-14-2004, 09:48 PM   #23
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2nd that..... the H6 is GIANT compared to the ej series....its a good amount longer and wider, not to mention a bit heavyer to.
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Old 10-14-2004, 09:49 PM   #24
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My take on this is they should just put the 2.5L block in the WRX. It's plenty reliable if you aren't pushing it to 350-400+ whp. 250hp at the crank is a long way away from that.

Just put the 5MT from the Legacy into it, done deal. It's a no-brainer if you ask me.
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Old 10-14-2004, 09:51 PM   #25
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Quote:
Originally Posted by snowman4us
2nd that..... the H6 is GIANT compared to the ej series....its a good amount longer and wider, not to mention a bit heavyer to.
It's not that much bigger, you can fit it into a GC8 engine bay without much work. I don't know about the newer H6 but I don't see it's packaging being much larger than the older ones.

Still not an easy swap, the ECU is completely different.

If you can tear down 1 Subaru engine you can tear them all down, they are all identical and really not very complicated.
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