edrach Posted January 20, 2013 Share Posted January 20, 2013 I checked the steering on my Impreza and it is 3.2 turns lock to lock. For rally purposes, I'd like to get it to around 2 turns lock to lock. Any models of the Subaru that have a quicker steering ratio? Or can one modify the rack and pinion to get the desired ratio? Quote Link to comment Share on other sites More sharing options...
Fairtax4me Posted January 20, 2013 Share Posted January 20, 2013 No modification without having a new rack and pinion custom machined. What year and model Impreza do you have? A WRX or STI may have a closer ratio. Quote Link to comment Share on other sites More sharing options...
bratman18 Posted January 20, 2013 Share Posted January 20, 2013 I know STi is an upgrade for most, but I'm not sure how much of an upgrade it is. Quote Link to comment Share on other sites More sharing options...
987687 Posted January 20, 2013 Share Posted January 20, 2013 According to cars101, the 05+ sti have a 2.6 turn lock to lock steering ratio. Probably 04 as well, but the way cars101 is laid out is a bit funky for the impreza. But it does have that listed for the 05 and 07. Quote Link to comment Share on other sites More sharing options...
1 Lucky Texan Posted January 20, 2013 Share Posted January 20, 2013 yeah, I was thinking the 06 WRX got a faster ratio than previous WRX - not certain. Quote Link to comment Share on other sites More sharing options...
Caboobaroo Posted January 21, 2013 Share Posted January 21, 2013 But they won't bolt in. 2005 was a major design change in the way they mount to the engine crossmember. 2004 STi will be the closest thing to a bolt in without buying a Q-Rack. Quote Link to comment Share on other sites More sharing options...
edrach Posted January 21, 2013 Author Share Posted January 21, 2013 According to cars101, the 05+ sti have a 2.6 turn lock to lock steering ratio.Probably 04 as well, but the way cars101 is laid out is a bit funky for the impreza. But it does have that listed for the 05 and 07. I went to cars 101 but neglected to do years other than my 2002 OBS. It didn't have any info; I tried a few other years also but didn't get into the STi or much newer cars. Quote Link to comment Share on other sites More sharing options...
JRachner Posted January 21, 2013 Share Posted January 21, 2013 All 93-05 imprezas have a 16.5:1 steering ratio The 04-07 STI and 06/07 WRX have 15:1 steering ratios Subaru changed the design of the crossmember and steering rack in 2005/2006. So the only 15:1 ratio rack that will bolt into any 93-05 impreza, is the 04' STI. If you change the crossmember you can use a newer style rack. (Any 02-07 impreza rack swapped into a 93-01 impreza will need a custom u-joint.) Quote Link to comment Share on other sites More sharing options...
edrach Posted January 21, 2013 Author Share Posted January 21, 2013 I should have asked the kid first!! Quote Link to comment Share on other sites More sharing options...
Caboobaroo Posted January 27, 2013 Share Posted January 27, 2013 What does this newbie know? :-p Quote Link to comment Share on other sites More sharing options...
edrach Posted January 27, 2013 Author Share Posted January 27, 2013 What does this newbie know? :-p A lot more than you think. I'm impressed. I've got a '06 rack and cross member coming for the upgrade. Quote Link to comment Share on other sites More sharing options...
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