ATLANTIC REGION MOTOR SPORTS
The governing body of amateur motor sport within Atlantic Canada
ARMS Homepage
It is currently Mon Sep 24, 2018 7:18 pm

All times are UTC - 4 hours [ DST ]




Post new topic Reply to topic  [ 5 posts ] 
Author Message
PostPosted: Tue Mar 20, 2018 2:26 pm 
Offline
5th Gear
5th Gear

Joined: Sat Nov 20, 2004 12:29 pm
Posts: 1157
Looking to replace some parts on the miata. Power steering rack is $2500. Standard non powered rack is $650. My concern is the non powered will require too many steering wheel rotations thus too much steering input for race purposes. Any thoughts?


Top
 Profile  
Reply with quote  
PostPosted: Tue Mar 20, 2018 2:45 pm 
Offline
5th Gear
5th Gear
User avatar

Joined: Sun Apr 28, 2002 1:12 am
Posts: 1877
Location: Bedford, NS
Our e30 runs with no power steering, no issues, with effort or rotations, I need to shuffle in corner 2, that is the only spot.
I can't see any reason to have power steering on a small light car that runs a small tire.

_________________
Paul


Top
 Profile  
Reply with quote  
PostPosted: Tue Mar 20, 2018 4:11 pm 
Offline
4th Gear
4th Gear
User avatar

Joined: Wed Jun 20, 2012 10:02 pm
Posts: 959
Location: Halifax
If it's whether or not you'll notice the different in the ratios between a manual rack and a powered rack I'd say no. The NA and NB have 15:1 and 18:1 steering ratios for power and manual racks (turns lock to lock are something like 3.17 and 2.65).

If you were turning the wheel 90 deg in Turn 2, with the powered rack then you'll only need to turn around 105 deg with the manual rack. It terms of feel the manual rack should be a little lighter since it turns slower.

Some discussion on the mazda forum: http://mazdaracers.com/topic/1997-depow ... nual-rack/

BTW would have thought a powered rack was cheaper. The manual rack was not as common.


Top
 Profile  
Reply with quote  
PostPosted: Tue Mar 20, 2018 6:40 pm 
Offline
5th Gear
5th Gear
User avatar

Joined: Tue Oct 11, 2011 9:27 pm
Posts: 1137
Location: Halifax, NS
Most of the hondas at AMP have a manual rack and probably 4 turns LTL. No issues there, we only have to shuffle steer in 2.

_________________
'99 BMW M3 / '01 BMW 330i / "Elvic"
ASCC Solo Director


Top
 Profile  
Reply with quote  
PostPosted: Tue Mar 20, 2018 8:17 pm 
Offline
5th Gear
5th Gear

Joined: Sat Nov 20, 2004 12:29 pm
Posts: 1157
Thanks guys. Kenny that's exactly what I was looking for. Thanks. Not going to power steering just have to do some work to my rack and looking for the cheapest option.


Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 5 posts ] 

All times are UTC - 4 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
Powered by phpBB® Forum Software © phpBB Group