Reducing Power Steering flow on 2JZ pumps

[brett_celicacoupe]

you might be able to anneal the spring to soften it a little. you might want a spare first incase it doesnt work

otherwise braze a Tpiece into the metal pressure line and put a 1-2mm diameter hole in it that bleeds back to the pump inlet

[131OWN]

What kind of signal activates the PPS, is it just 12v on off or what?

[brett_celicacoupe]

yeh a 12V solenoid.

off = light steering
on = harder steering

*for memory

[CrUZida]

PWM controlled from memory

[PlacentaJuan]

mate i went though all this a while ago.

tried different sizes and lengh of restrictor line in the hose (last one i tried was twice as long as the stock resctrictor or some people call them a soudn deadener) and it made no difference.

removed all that shit and replaced the hp line with a 1/4 inch line which made a bit of difference but not much.

i also still have an underdrive pulley too which slows the pump down.

[takai]

Gah, might have to chuck in a bigger shock then.

[PlacentaJuan]

the grandes dont have a shock too so i wonder what the difference would be between the racks themselves.