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Thread: Electric power steering

  1. #21
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    Re: 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

  2. #22
    SEC Member ChrisCar6's Avatar
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    Re: Electric power steering

    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.

  3. #23
    SEC Member Guy Mayers's Avatar
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    Re: Electric power steering

    Quote Originally Posted by ChrisCar6 View Post
    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

  4. #24
    SEC Member STR_Strat's Avatar
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    Re: Electric power steering

    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

  5. #25
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    Re: Electric power steering

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

  6. #26
    SEC Member STR_Strat's Avatar
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    Re: Electric power steering

    That took me a while, I need more coffee

  7. #27
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    Re: Electric power steering

    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
    Last edited by 4sfed5; 25-08-2018 at 23:00.

  8. #28
    SEC Member ducatiman's Avatar
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    Re: Electric power steering

    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.
    Last edited by ducatiman; 16-10-2018 at 01:52.
    Hawk HF3000 - Engine: Alfa GTV 3.0L 24v V6, Dry Sump - Gearbox: Sadev 6 Speed Sequential ST90-14 - Suspension: Nitron 3 Way Adjustable - Wheels: Hawk Compomotive - Tyres: Pirelli P7 Corsa

  9. #29
    SEC Member Stratos Fear's Avatar
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    Re: Electric power steering

    Interesting site - he sounds knowledgeable.

  10. #30
    SEC Member ducatiman's Avatar
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    Re: Electric power steering

    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.

    Click image for larger version. 

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    Last edited by ducatiman; 18-11-2018 at 21:32.
    Hawk HF3000 - Engine: Alfa GTV 3.0L 24v V6, Dry Sump - Gearbox: Sadev 6 Speed Sequential ST90-14 - Suspension: Nitron 3 Way Adjustable - Wheels: Hawk Compomotive - Tyres: Pirelli P7 Corsa

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