LS Power Steering Pump Pressures
Thread Starter
Instructor
Joined: Sep 2018
Posts: 156
Likes: 48
From: O'Fallon, MO
2023 C4 of the Year Finalist - Modified
LS Power Steering Pump Pressures
I'm doing a Gen V LT1 swap into my C4 based kart. Full thread here: https://www.corvetteforum.com/forums...ld-thread.html
I took the car out for it's first drive and the power steering feels extremely underpowered. I'm using an the standard LS power steering pump (GM part number 84629501) with a 6" pulley and the C4 rack that came in my 1995. Does anyone know if the LS power steering pump doesn't put out enough pressure? If moving to a smaller pulley on the pump will help it push more pressure? Or if I need a different pump?
I did put a 1.5:1 steering quickener on the car, but the lack of power steering feels more than just the quickener.
I took the car out for it's first drive and the power steering feels extremely underpowered. I'm using an the standard LS power steering pump (GM part number 84629501) with a 6" pulley and the C4 rack that came in my 1995. Does anyone know if the LS power steering pump doesn't put out enough pressure? If moving to a smaller pulley on the pump will help it push more pressure? Or if I need a different pump?
I did put a 1.5:1 steering quickener on the car, but the lack of power steering feels more than just the quickener.
Drifting
Joined: Mar 2018
Posts: 1,362
Likes: 400
From: DFW TX
My stock c5 pump works just fine in my 84 ls swap car. Even after I installed a 25% underdrive crank pulley it is still fine. Just a tad heavier at idle speeds, but it only took me a day or two to get used to it. I don't have big and wide meats up front though, they are 245/45/17s.
Team Owner
Joined: Sep 2003
Posts: 25,394
Likes: 2,741
I believe that anything regarding PS pump, the rack & pinion performance I'd reach out to TurnOne and have a discussion regarding modifications, pulley diameter etc. They I'm quite sure offer various orifices that control rate/effort etc. I don't know of anyone local that has any experience with the 1.5:1 'quickener'.
