Power steering
- Thread starter mikegaan
- Start date
Hi Mike
I have installed one into my TS40 (see my build log 'Norfolk Tornado) I'm using an Opel Corsa EPAS steering column, whith a speed/load controller interface box which is readily avaialble on Ebay UK
Regards
Andy
I have installed one into my TS40 (see my build log 'Norfolk Tornado) I'm using an Opel Corsa EPAS steering column, whith a speed/load controller interface box which is readily avaialble on Ebay UK
Regards
Andy
Hi Mike,
I can't think of any 'not' issues, but make sure you get an intermediate shaft, so you adapt it to your MGB rack
Regards
Andy
I can't think of any 'not' issues, but make sure you get an intermediate shaft, so you adapt it to your MGB rack
Regards
Andy
Mike Pass
Supporter
Hi Mike,
I think the important thing is to avoid bump steer. The important rack dimension is the length of the rack from one track rod swivel centre to the other. Try to keep them the same when you change the type or make of rack. Bumpsteer can be checked by measuring the toe in/ toe out as the suspension rise and falls. The idea is that the outer track rod end moves in the same movement as the upright and therefore does not turn it as it moves - eliminating bump steer (upright turning as the suspension moves in droop or bump hence the term bumpsteer). It can never be eliminated completely (as all arms move in different arcs) but should be reduced to the minimum by moving the rack position up and down and/or backwards and forward using shims.
If your new rack is in the same position and the same length there will be no change from initial conditions in bump steer. The connection and operation of the new rack will be the same as the donor car and carried over wholesale.
If the new rack is of a different length you may have fun juggling it about to get rid of the bumpsteer. As with many things in suspension - in moving through complex arcs a very small change can have significant effects. A common upgrade for GTDs is a 3/16" shim under the Cortina steering rack.
Cheers
Mike
I think the important thing is to avoid bump steer. The important rack dimension is the length of the rack from one track rod swivel centre to the other. Try to keep them the same when you change the type or make of rack. Bumpsteer can be checked by measuring the toe in/ toe out as the suspension rise and falls. The idea is that the outer track rod end moves in the same movement as the upright and therefore does not turn it as it moves - eliminating bump steer (upright turning as the suspension moves in droop or bump hence the term bumpsteer). It can never be eliminated completely (as all arms move in different arcs) but should be reduced to the minimum by moving the rack position up and down and/or backwards and forward using shims.
If your new rack is in the same position and the same length there will be no change from initial conditions in bump steer. The connection and operation of the new rack will be the same as the donor car and carried over wholesale.
If the new rack is of a different length you may have fun juggling it about to get rid of the bumpsteer. As with many things in suspension - in moving through complex arcs a very small change can have significant effects. A common upgrade for GTDs is a 3/16" shim under the Cortina steering rack.
Cheers
Mike
Seymour Snerd
Lifetime Supporter
I know this is an old thread but wanted to keep the subject matter condensed. In researching add-on power steering for a different, front-engine car I discovered this article. In it mentions a GT40 having been subjected to the modification. Just FYI...
http://www.ezpowersteering.nl/uploadedfiles/Octane%20June%202012.pdf
http://www.ezpowersteering.nl/uploadedfiles/Octane%20June%202012.pdf
Mike,
I've made an inquiry about a universal version of the EZ kit. (No reply yet.) Currently I've got a preliminary design that uses a simple electric power assist unit from Unisteer but it's not speed dependent, nor adjustable. (Just much cheaper than the Flaming River unit...).
I've made an inquiry about a universal version of the EZ kit. (No reply yet.) Currently I've got a preliminary design that uses a simple electric power assist unit from Unisteer but it's not speed dependent, nor adjustable. (Just much cheaper than the Flaming River unit...).
Ian Anderson
Lifetime Supporter
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