Power steering

[dobby]

With my Modena front diff and the added castor I gave my car the steering wheel is now pretty hard to turn. As there are many cars with the same engine like the primera for instance. Does anyone think I could use the pump off the primera and put it on the gtir to increase the power?

I have already been told to get stronger arms.

Cheers

Mark

 

[ian c]

the steering wheel is now pretty hard to turn

in what instance, parking or all the time?
If parking, it can be rectified by increasing pump relief pressure....
If 'all the time', then it's going to be a little trickier!

ian

 

[stumo]

go to the gym........

 

[dobby]

Its all the time. The wheel wants to be central all the time so you are fighting it to make it turn.

 

[Fast Guy]

I only find it's hard under full power. Normal driving it's fine.

 

[stumo]

I only find it's hard under full power.

Ffnarr Ffnarr:lol:




same here

 

[ian c]

Its all the time. The wheel wants to be central all the time so you are fighting it to make it turn.

unfortunately you're struggling then.
Force at the steering rack is determined by only three things:

Hydraulic
Pressure of the fluid in the cylinder (dictated by the rotary valve)
Cross sectional area of the cylinder

Mechanical
Input by the driver

As you are saying it's too heavy, you need to change one of the hydraulic items, which essentially means fitting a new steering gear from a car with a higher front axle weight.

 

[dobby]

Ok cheers for the comments. Fast Guy, have you done the castor mod by turning the coilover topmounts? This is what probably makes the steering the heaviest.

 

[stumo]

Ok cheers for the comments. Fast Guy, have you done the castor mod by turning the coilover topmounts? This is what probably makes the steering the heaviest.

been there, done that, discussed it with Jim before he did it:roll:

 

[Fast Guy]

Ok cheers for the comments. Fast Guy, have you done the castor mod by turning the coilover topmounts? This is what probably makes the steering the heaviest.

Nope, I'm thinking of doing it tho.

I have the modena and the whiteline kit which is supposed to add a degree or 2.