sti V7 swap advice for 02 wrx

j_biggz · 02-12-2013, 08:03 PM

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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mhoerath · 02-13-2013, 06:57 AM

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.

j_biggz · 02-13-2013, 10:19 AM

What kind of rpm due you run at 70 mph?

mhoerath · 02-13-2013, 05:31 PM

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

get back to you on that.

mhoerath · 02-15-2013, 07:22 AM

Quote:

Originally Posted by j_biggz

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.

02-12-2013, 08:03 PM	#1
j_biggz Scooby Newbie Member#: 330017 Join Date: Aug 2012 Chapter/Region: NWIC Location: Southern Oregon Vehicle: 02 wrx impreza rally blue	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. * Registered users of the site do not see these ads.

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02-13-2013, 06:57 AM	#2
mhoerath Scooby Specialist Member#: 131379 Join Date: Nov 2006 Chapter/Region: MAIC Location: richmond, va Vehicle: 2003 354 ftlb@3k rpm justablue hatch	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.

02-13-2013, 10:19 AM	#3
j_biggz Scooby Newbie Member#: 330017 Join Date: Aug 2012 Chapter/Region: NWIC Location: Southern Oregon Vehicle: 02 wrx impreza rally blue	What kind of rpm due you run at 70 mph?

02-13-2013, 05:31 PM	#4
mhoerath Scooby Specialist Member#: 131379 Join Date: Nov 2006 Chapter/Region: MAIC Location: richmond, va Vehicle: 2003 354 ftlb@3k rpm justablue hatch	i'm on a 3 day road trip in my wife's cvt outback get back to you on that.