Power steeing delete on a Matrix, project and how to

[Weather Spotter]

well I have been toying with doing a PS delete for a while now, just could not find an idler pulley to replace it with.

Well a friendly soul on my Matrix forum who was looking at my car thread and "got it" about why I do what I do. He was into the performance side of things but liked the aero mods for the high end speed and the cost savings and sent me a link to a PS delete racing pulley:

Toyota OEM Belt Idler Pulley - MR2-S, Lotus PS Delete - TOY-ZZIDLER van Toyota OEM - Monkeywrench

The price will make the payback longer then many of my mods but its about getting better MPG

so once it comes in I have a little engine project


Recommendations on how to cap/ drain the lines to keep the mod reversible and easy steering?

[Frank Lee]

I still have my pump all hooked up and simply pushed off to the side. I got used to the heavier steering quickly and lost the motivation to disconnect it all.

[HyperMileQC]

Does your power steering pulley is on the serpentine belt, or it is on a smaller one lonely? Because if it is on a small belt you could just remove it like we have done on the echo-troll. For the gain I guess like 0.05 - 0.1 LHK. You can't feel the non-asssisted tires above 10 MPH. I highly suggest you to do this mod. Also don't forget to keep your tires pressure high to make it even more easy to turn.

[Weather Spotter]

here is a diagram of my belt system:


the PS pump is the one on the far left
it is all on one belt or I would have removed it a long time ago

my tires are at max side wall and have been for two years!

[HyperMileQC]

Such an annoying thing that the ps pulley is on the serpentine, it would have been way more easy if the ps pulley would have been on a single belt. Do you think a smaller serpentine would do the job?

You have the A/C Compressor?

[Weather Spotter]

If I change out the belt I mess up the routing, so I have a idler pulley on order

yes I still have the AC, its not worth the hassle to remove it in a way thats reversible and some days in the winter I need the defog help (only once every few years).

[HyperMileQC]

This seems to be a good idea. Totally remove the ps pump, replace with idler pulley. How many RPM's are you getting when idling with no accessories?

[HyperMileQC]

Originally Posted by Wheatherspotter

Power steeing delete on a Matrix, project and how to

Power steering perhaps.

[Weather Spotter]

my great spelling shows up again

idle is about 700-900 rpms once warmed up. its 18-2100 until its warm. but I only idle at stop lights that are sensed (one in the morning I hit 90% of the time).

[JacobAziza]

When we removed PS from her matrix, I just bought a shorter serpentine belt, and rerouted it to skip the PS (and AC).
I drew out the belt diagram you posted above, and figured out a path that would turn everything the correct way while skipping the unnecessary stuff, then measured it with a piece of string and told the parts store the length of the belt I wanted in mm.
It took 3 trys to get the right length, and getting the belt on was a little bit challenging, but it gone on just fine in the end.