[Diy_efi] power steering pump relocation

[Mike]

MR2 is ECU controlled off a pair of quadrature sensors on the
steering tube, senses torque, motor is on demand and PWM'd also...

I'm looking for one for my car cause my damn PS pump is right in
front of the turbo inlet and it has a dogleg air passage :(

rgds

mike



At 03:59 PM 4/4/03 -0600, you wrote:
>Didn't MKII Toyota MR2s ('91-'94) come with a power steering of this
nature? By
>that, I mean an electro-hydraulic steering setup that was "on demand" so the
>pump didn't run except at lower vehicle speeds. I don't know if it was ECU
>controlled or not, as The Wife has a MKI & it's manual steering only.....
>
>Might be worth checking into.
>
>-Scott Creech
>
>
>> Bernd Felsche quipped:
>> > Seriously off-topic. :-)
>>
>> Actually, it won't be shortly, because the next questions will be about
>> variable speed assist and integrating this circuitry with the ECU. Well
>> okay, this truly has nothing to do with fuel injection, but it is system
>> electronics nonetheless. Close enough? :^)
>>
>> > The other concern is one of the steering getting the
>> > required pressure soon enough if the pump is modulated
>> > in some way.
>>
>> Hmm... good point. This project is in its seminal stages. Perhaps hard pipe
>> and braided steel will be necessary to cut the damping effect...
>>
>> Mike D. wisely asked:
>> > why do you need power steering in a Scirocco???  That's
>> > a pretty light car.  You can loose up to 10 lbs by removing
>> > all that stuff and free up some power.
>>
>> Yup, you're quite right about that, Mike. I'm running a 2:1 steering
>> quickener which brings the turns lock to lock to just two. I'm no weakling,
>> but that kind of steering effort would be murder on me over the course of a
>> long rally event or even in an an autocross. A precision touch is needed
>> rather than the ham fisted approach. Okay, back to my laboratory...
>>
>> Thanks,
>> --
>> Scott F. Williams
>> Team Director
>> Usually Sideways Rally Team
>
>
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