Engine/Power - EJ25T (STI and 2006+ WRX) Discussions about the USDM 2006+ WRX and WRX STi 2.5 liter turbo flat-four.

Low end - High end power

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Old May 24, 2004 | 11:20 AM
  #2  
cnstman's Avatar
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From: Colorado Springs
Car Info: 2004 Silver/Silver STi
the launch is much better than the M5 (AWD) the high end is not.

i can't really compare the two much more than that, never drove / ridden in a M5
Old Jul 3, 2004 | 08:51 PM
  #5  
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Car Info: 04 STi blk cloaked team blew member
The Sti doesn't pull as hard as the M5 in the 60-100 mph but you will be close. I own a 04 STi and I have driven my buddies M5 you have to make a few changes to equal the pull 60-100mph of the M-5. don't get me wrong my mustang made 448 at the wheels my Sti would get out in front but get run down but so would my buds M-5. I added(STi) a cat back and could CAI which helps alot over the stock Sti but if you want to out run a M-5 you will need a little bigger turbo. I have gone 150 in my Sti more than once so it does go fast.
Old Jul 3, 2004 | 08:56 PM
  #6  
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Car Info: 04 STi blk cloaked team blew member
Talking

Originally Posted by whoosh
m-5will have much better top end
both top ends are electronically limites at 155.
Old Jul 5, 2004 | 10:51 PM
  #7  
Krinkov's Avatar
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From: in a glass case of emotion.
Car Info: 345/30/19s
the STI has NO top end as far as Im concerned

This is no fault of the motor, it could make power out to 7K rpm, but Subaru decided to put a smaller turbo on our 2.5 than they EVER did on any of their 2.0 STIs(WTF??) so it runs out of power before 6K rpm,

get a turbo that can move air out to 7K and this motor is a REAL monster, theres a guy with a FP green putting down 420whp still using stock top mount, not bad
Old Jul 6, 2004 | 02:10 AM
  #8  
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Car Info: 1973 Huevo Ranchero
<ahem> 60-100?
my perception, which is mostly subjective- the STi is 2 different animals in terms of rpms. from 2500-4000 nice pull(and growl) from 4000 to 7000 it screams and sounds very typical to the WRC car you see/hear on speed channel and video games.
Originally Posted by Jonnyboy593
i need a car that can give me chills when i'm already moving as well...
hopefully you are on a "controlled" area when you push the limits-
my verdict is this - for the money you can't go wrong - the STi is a rocketship beast with power in all rpm ranges-





aloha from the summit of Mauna Kea
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