orbital questions

onetoncrawler · Apr 8, 2010

i know the information is out there, i just can't find it right now for some reason :dunno:

what orbital displacement is best for a 5.3 stock pump? i dont want to upgrade to the ls2 style pump

found a decent deal on a new 4.88 orbital but didnt want to pull the trigger if it will not be 100% right

thanks

BamaTJ · Apr 8, 2010

Not sure the pump matters all that much, just mostly how fast you want your steering. I would not go with the fastest orbital they make as it may outrun the pump, but other than that you would be fine.

I am thinking the 4.8 is pretty slow. Here is PSC's listing, the fastest one they offer is the last on the 14.1. It is gonna be crazy fast lock to lock, probably 1.5-2 turns. The 4.3 is the slowest they have and it is somewhere like 6-8 turns I would bet.
http://www.pscmotorsports.com/full-hydraulic-steering-orbital-steering-valves-c-151_44.html

onetoncrawler · Apr 8, 2010

holy crap at all the steering tech
http://www.pirate4x4.com/tech/billavista/PR-Hydro_Steering/index2.html
and here is a fancy calculator , engineers will appreciate this molaugh