The only electronics I see in the power steering system is a pressure switch connection. I have not been able to determine where this goes to yet. I have an inkling that it may only be used to increase the idle rpms.

You could always try to find another pressure switch with adjustable pressure range/deadband in the new system. From the manual, pickup is at 261-348psi and drop out is at 145-348 psi. I would surmise that as long as the drop out and pickup deadband is higher than the no load pressure (116 psi), it would work fine. It also needs to withstand the max pressure and temperature of the system.

I think that the actual pressure control for the power steering system is entirely mechanical if there even is a pressure control.

I do not see any ECU difficulties with doing this setup. However, I would want more information on how the power steering system works before changing hoses and implementing. IE: temperatures, pressures (no flow, no load, full load, how the gearing system is using the hydraulic pressure), etc. There is a decent amount of pressure on the power steering line which will require a bit more heavy duty line than we typically work with on cars.

Personally, I like the idea of a trunk mounted electronic pump with bladder type reservoir that feeds the lines forward to the power steering system. I would probably re-use the stock cooling tubes on the front of the car.

 

This is a great idea, one that I considered but that is alot of line to run to the front of the car.

 

Simple fix... delete power steering. I've been contemplating doing so, but haven't done so yet.

 

That's not an option for those who actually drive the car haha No power steering SUCKS.

 

Lol yeah I know, I like the electric pump option... might do that later along with an electric water pump.

 

What would be the purpose of the electric water pump if you don't mind me asking?

 

To hell with the mr2 stuff and go all electric like the Chevy Cobalt has! Then you eliminate all hydraulic stuff all together. Look into that.

 

Less drag on the motor = more power and one less thing to wear out.

I think we should take this discussion to another thread....I have pirated Dan's thread.

 

It is ok. It's great info I do not mind. If you want to make a new thread then go for it. I am interested in this mod. I won't trunk mount it though.

Can you run a thermostat when going to a electric water pump?

 

I don't see why not, it still works in the same manner. In fact you could shut the electric waterpump off and have it turn on at a certain temp, unlike the oem piece.

 

I don't know why you would even think about mounting an electric water pump in your trunk.

A local mounted his under the driver side headlight:

http://imageshack.us/scaled/medium/267/img0243fb.jpg

 

This is also a nice feature.
Less drag and more power like you said are the reasons.

How would it act or respond(power steering and water pump being electric) when the car is under load.? Much research would be needed to be done before I decide to do these. The evo doesn't have a good grounding system along with weak alternator... for me I would address those before doing the PS/WP.

 

They were referring to the power steering pump in the back. The water pump is, like you said, traditionally located under the headlight.

 

I posted on a thread which didn't receive much attention but it started to address the issue of amperage and what was required from each upgrade. I believe that the Alt that R/T came up with would more than address any electrical issues.

 

I believe Douglas Autowerks... I think that's their name. They offer a high power output alternator.

Ill do some searching when the time comes, ill probably pm you as well. Good stuff