Modifying 944 manual rack
04-05-2005, 04:50 PM
#31
Three Wheelin'
Join Date: Jul 2001
Location: San Francisco, CA Porsche: '92 968 Blk/Cashmere
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Originally Posted by M758
Manning has the perfect description of manual vs power steering. The fluid in the power rack damps out those imperfections in road surface so the steering feels smooth. On a manual rack you feel all those little jolts and things.
Here are the actual specs for PS and manual rack. Disregard the specs that have been posted elsewhere in this thread.
manual
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steering wheel ratio 22.39:1
turns lock to lock 3.84-4.02
power
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steering wheel ratio LHD 18.85:1/RHD 18.96:1
turns lock to lock LHD 3.24/RHD 3.26
04-06-2005, 12:17 AM
#32
Fluid damps vibration. Also seemed to me when the Scirocco blew its hose that the system itself must act like a shock absorber in a way as there seemed to be more kick in the steering with the fluid leaked out. That said, I can't say I have noticed too much *kickback* with the manual rack installed in my 924S.
