Electric power steering

Hi Dave,
I'm very interested in your EPAS thread as it clearly opens up suspension and steering geometry options to improve stability. My concern/question however is how does this affect the steering feed back as my only long term experience of EPAS is several years ago with a Honda S2000 which was incredibly vague and had little to no feel of the limit, especially in the wet. I did a lot of research last night and this is a common criticism unless you go to the very latest generation of technology (apparently a Porsche system is one of the leaders) which is clearly not an option for the majority of us. Most engineering solutions have some inbuilt compromise, which I'd be prepared to accept as long as it doesn't replace one issue with another. I have a long wait for my chassis so want to use the time to review and plan the various build options and collect and prepare all the parts. I know steering 'feel' will be subjective but am interested to understand your experience/thoughts.

regards
Steve

I think it depends on what you're doing with the car. I have no PAS and a quick rack - 2.5 turns lock to lock - on a Hawk with usually 205 front tyres on 6" rims. Really not great for parking/3-point turns etc., but once off and moving no problem at all; great feel at speed. If I lived in town and used it around town a lot I would be thinking of it. Castor/camber settings have an effect too.

Quote:

---

Originally Posted by ChrisCar6

I think it depends on what you're doing with the car. I have no PAS and a quick rack - 2.5 turns lock to lock - on a Hawk with usually 205 front tyres on 6" rims. Really not great for parking/3-point turns etc., but once off and moving no problem at all; great feel at speed. If I lived in town and used it around town a lot I would be thinking of it. Castor/camber settings have an effect too.

---

Plus one Chris! And I run 8 inch on the front with 225*50*15's! You soon learn not to attempt to turn the steering wheel until the wheels are rotating! And yes, it improves with speed and has great feedback.

Guy

I can't comment on the feel or feedback yet as the car has only been driven a few yards in and out of the garage. The plan is to do a bit of experimenting once it is on the road/track with the suspension set up. The entrance to my garage and the fact other cars are on the drive means I inevitably end up having to faff around on what is a very grippy surface to get the car in and out. If it doesn't work out and I lose too much feel it will be much easier to remove the setup, than it would have been to add it after the build.
As soon as I can test it properly on the road or on the track I will report back, all I can say at present is its a dream to use at 1mph:o

Hmmm, prob best to set off for the 2019 AGM at Stoneleigh sometime in February then Dave :) :)

That took me a while, I need more coffee:confused:

There are LOADS of threads about corsa retrofits mostly on ford escorts and vw golf's. There are a few good controllers available to vary the assistance (they basically just send a false speed signal to the epas controller) some are better than others.... or you could fit a speed sensor to your car.
Fiat punto have epas too so maybe look at those too

For those interested in the install and electronics required, found this site with loads of great info................

http://www.super7thheaven.co.uk/blog...steering-epas/

You can navigate around the various pages, well worth a read. It warns of the dangers of using some of the cheap units that are available to give false speed signals into the Corsa Control unit and some have drifted badly with temperature.

Interesting site - he sounds knowledgeable.

Corsa C EPAS - Modified a lot to fit MK1 Rally Escort..............all the original collapsible shaft to the steering wheel has been removed and escort steering column grafted on.

Attachment 14110

Attachment 14111