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Old 02-12-2013, 08:03 PM   #1
j_biggz
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Member#: 330017
Join Date: Aug 2012
Chapter/Region: NWIC
Location: Southern Oregon
Vehicle:
02 wrx impreza
rally blue

Default sti V7 swap advice for 02 wrx

Looking to do the 6 speed swap for my 02 wrx and have a local shop talking me into doing a version 7 sti 6 speed. I have been looking around on here and google and haven't found a lot of answers on how it performs and what people have thought about it after having it done. From what I understand it reuses a lot of the 5 MT parts and so is the less expensive option. My power goals for the wrx are minimum 350awhp and I currently am at 220awhp/253tq. Just looking for any advice or guidance. Thanks in advance.
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Old 02-13-2013, 06:57 AM   #2
mhoerath
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Member#: 131379
Join Date: Nov 2006
Chapter/Region: MAIC
Location: richmond, va
Vehicle:
2003 354 ftlb@3k rpm
justablue hatch

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i have a jdm v7 drivetrain swap into my 03 bugeye. I sourced the entire drivetrain so plug and play to include axles/hubs and r180 rear diff. you need to match trans out ratio with rear diff ratio, your wrx r160 does not match. And r180 stronger.

You'll need a dccd controller, recommend dccd pro. I have an older neetronics. at the same time replace all axle and prop shaft seals, both front and rear.

luv it.
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Old 02-13-2013, 10:19 AM   #3
j_biggz
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Join Date: Aug 2012
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Location: Southern Oregon
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02 wrx impreza
rally blue

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What kind of rpm due you run at 70 mph?
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Old 02-13-2013, 05:31 PM   #4
mhoerath
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Join Date: Nov 2006
Chapter/Region: MAIC
Location: richmond, va
Vehicle:
2003 354 ftlb@3k rpm
justablue hatch

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i'm on a 3 day road trip in my wife's cvt outback

get back to you on that.
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Old 02-15-2013, 07:22 AM   #5
mhoerath
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Join Date: Nov 2006
Chapter/Region: MAIC
Location: richmond, va
Vehicle:
2003 354 ftlb@3k rpm
justablue hatch

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Quote:
Originally Posted by j_biggz View Post
What kind of rpm due you run at 70 mph?
70 mph = 3100 rpm
66 mph = 3000 rpm

Outback 2k rpm at 65 mph!

btw 6th gear ratio is .842 for most Sti jdm 6 spds to include the V7, and most Sti usdm is .756

Rallispec published a trans ID chart that shows gear ratios for lots of transmissions:

http://forums.nasioc.com/forums/show...smission+chart

I get 24-25 mpg mostly city driving, with a healthy set of mods/tune.
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