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Old 12-31-2004, 12:31 AM   #1
Lachlan
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Member#: 19470
Join Date: May 2002
Chapter/Region: SWIC
Location: albuquerque, NM
Vehicle:
1981 Brat GL
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Default version 4 vs. version 5

I know the version 4 is a phase 1 and version 5 is a phase 2, but other than that, are the drive trains very different? I just wonder if it would be regrettable to put a version 4 drivetrain into a 99RS instead of a version 5 or 6.
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Old 12-31-2004, 12:03 PM   #2
Jaxx
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Join Date: Aug 1999
Chapter/Region: NWIC
Location: Boise,Idaho,USA
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The 93 Imp W/EJ20K
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lets see
differnt injectors
different intercooler options
and you can't use ecutek on a ej20k.. ecutek does do ver 5 with flash 99 now finding a ecutek dealer in the us that has flash 99 is another question
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Old 12-31-2004, 01:19 PM   #3
Kha0S
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Location: Grantham, NH
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2011 WRX (DGM 5D)
2002 WRX/2003 SVTF

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As far as I know, the transmission case designs are different as well.

As a data point, RalliSpec sells two different versions of STi and STi/RA gearsets... one set is v4, the other set is v7. The v4 gears are specific to pre-MY98 US cases, and v7 for those manufactured thereafter.

They changed a few dimensions, as well as some bearing styles, as far as I know.

/Andrew

edit: however, on the large scale (entire transmissions, motors, etc.), I believe that the parts are pretty compatible between the two versions.
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Old 01-03-2005, 01:24 PM   #4
garface
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Location: yonkers, ny
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MY00 RS/STi7
MY01 RS Both Silverthorne

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Quote:
Originally Posted by Kha0S
As far as I know, the transmission case designs are different as well.

As a data point, RalliSpec sells two different versions of STi and STi/RA gearsets... one set is v4, the other set is v7. The v4 gears are specific to pre-MY98 US cases, and v7 for those manufactured thereafter.

They changed a few dimensions, as well as some bearing styles, as far as I know.

/Andrew

edit: however, on the large scale (entire transmissions, motors, etc.), I believe that the parts are pretty compatible between the two versions.
Ver. 7's are 6 speeds. I assume you know this and meant Ver. 5+.
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