GenRight Vented Power Steering Pulley Install w/ Data

TJustin

Porch Dog
Supporting Member
Ride of the Month Winner
Joined
Oct 26, 2018
Messages
264
Location
4 hrs from Sand Hollow
Got this cool little piece from a friend a few weeks ago and decided to install it today. GR offers them in blue and red anodizing. I'm glad the one I got was blue. Considering my previous experience with anodized aluminum, it didn't take much time, even when not in UV light for red items to quickly fade to pink.

IMG_1788.jpg


On the GR website, Uncle Tony claims a 10% overdrive over the stock pulley. It also has blades machined into the pulley that draw air over the pump in an effort to keep it from overheating. Since I could not find any reviews online, I figured I'd do a bit of science-ing and put the pulley to the test. During R&R, I used a wind meter used for long range target shooting to measure airflow, and a digital handheld tachometer to compare the revs.

My current hydro assist setup is a now defunct kit from PSC. At one point they offered a kit that included a PSC steering box, ram, and hoses. It retains the OE pump. I have added a Derale branded auxiliary cooler mounted to the radiator preemptively to keep the fluid cool. My biggest complaint is that when I attempt to turn the steering too quickly at idle, I can outrun the ram where it gets harder to turn. I think the end all solution is to just get a PSC pump and reservoir, but I hope that the overdrive pulley might make up some of that difference.

I measured both attributes on both pulleys with the engine idling at 750 rpm. The air flow was measured directly behind the pulley, on top of the pump. RPM was measured by a handheld tachometer with the reflective piece of tape stuck to the very outside forward face of the respective pulleys.

Here are the results:

Stock pulley
Airflow-2-4 mph, airflow seemed pretty turbulent. I attribute this to the radiator fan and the obstructions between it and the fan.
RPM-980

GR Pulley
Airflow-consistently 11-11.5 mph
RPM-1070

Jury is still out on how it will help with turning the wheel quickly off-road at idle but looks to live up to GenRight's claims. I'll post back up once I get some trail time regarding whether it helps the ram keep up.
 
Last edited:
Since you're using this on your stock pump,
do you have any thoughts on what this would do for a completely stock setup?
If anything?
 
  • Like
Reactions: TJustin
Since you're using this on your stock pump,
do you have any thoughts on what this would do for a completely stock setup?
If anything?

I would expect that you will get marginally more power from the stock power steering. I am doubtful it would be anything close what a hydro assist setup is capable of. Cooling would be helped as well with it pulling air over the pump, which might have saved my original pump years ago, well before I went hydro assist.

Even though the hydro assist and PS cooler setup is more money out of pocket (~$750 for Redneck Ram setup), it will get you more mileage per dollar than you spending $200 + shipping on this pulley if you were wanting more power for turning while on the trails. Full hydro/hydro assist are game changers.
 
  • Like
Reactions: psrivats
Since you're using this on your stock pump,
do you have any thoughts on what this would do for a completely stock setup?
If anything?

If we could overdrive the stock pump with any appreciable long term benefit, I'd use all of the overdrive pulleys I've removed from PSC pumps that were installed that should not have been.
 
  • Like
Reactions: NashvilleTJ