BMW E36 LS7 SWAP PT.4 - Z4 MANUAL STEERING RACK INSTALL / PROPER E36 POWER STEERING DELETE
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Watch as I install a MANUAL steering rack from a BMW Z4 into my E36! Instead of de-powering the existing hydraulically assisted 328i steering rack (by looping lines), I decided to do it the right way and find a manual rack:
-The Z4 manual rack is 3 turns LTL (lock to lock)
-The 328i power steering rack is 3.2 turns LTL
-The Z4 manual rack ratio is (LINEAR)
-The 328i power steering rack is after 200 degrees in either direction, it speeds up to to lock (PROGRESSIVE)
*BENEFITS OF MANUAL RACK*
-Lighter steering rack
-weight savings from lack of fluid/pump/lines
-de-clutter engine bay - no PS pump/reservoir or PS cooler
-zero potential for leaks
-free up upwards of ~5 horsepower
-quicker revs
-stronger steering shaft
-slimmer profile steering shaft for better LSx longtube fitment
-faster turns
-more direct feel of the road
*CONS OF MANUAL RACK*
-more steering effort required - moreso at parking speeds (although steering effort is easier using a manual rack vs de-powered hydraulic assisted rack)