Just joined? Please introduce yourself.
Page 1 of 3 123 LastLast
Results 1 to 10 of 23

Thread: electric power steering

  1. #1
    Registered Member
    Join Date
    Jul 2017

    Member #:3473
    Posts
    15

    Question electric power steering

    OK no yelling

    Has anyone used this or know of anyone that has ? EPAS Performance Application Specific Electric Power Steering Conversion Kits ?

  2. #2
    Registered Member chevynut's Avatar
    Join Date
    Nov 2011

    Member #:115
    Location
    Fort Collins, CO
    Posts
    10,835
    I've read a little about EPS on the internet and there are some guys making their own systems from OEM parts. I think the challenge is fitting it under the dash. It's a proven technology.
    56 Nomad, Ramjet 502, Viper 6-speed T56, C4 Corvette front and rear suspension


    Other vehicles:

    56 Chevy 2-door BelAir sedan
    56 Chevy 210 4-door sedan
    57 Chevy 210 4-door sedan
    1962 327/340HP Corvette
    1961 Willys CJ3B Jeep
    2001 Porsche Boxster S
    2003 Chevy Silverado 2500 HD Duramax
    2019 GMC Sierra Denali Duramax

  3. #3
    Registered Member
    Join Date
    Jul 2017

    Member #:3473
    Posts
    15
    I was thinking about doing this. The battery is going in the trunk Im going with your c4 conv but I really wanted to have a clean firewall and eng bay.................. This would get a lot out of the bay in my mind.

  4. #4
    Registered Member chevynut's Avatar
    Join Date
    Nov 2011

    Member #:115
    Location
    Fort Collins, CO
    Posts
    10,835
    So here's something to think about. If you use EPS you eliminate the PS pump but you'd have to use a manual rack. What do you plan to do for brakes? If you go with Hydroboost you'll still need the pump. You could go with electric brakes too. What exactly are you trying to "clean up"?
    56 Nomad, Ramjet 502, Viper 6-speed T56, C4 Corvette front and rear suspension


    Other vehicles:

    56 Chevy 2-door BelAir sedan
    56 Chevy 210 4-door sedan
    57 Chevy 210 4-door sedan
    1962 327/340HP Corvette
    1961 Willys CJ3B Jeep
    2001 Porsche Boxster S
    2003 Chevy Silverado 2500 HD Duramax
    2019 GMC Sierra Denali Duramax

  5. #5
    Registered Member chevynut's Avatar
    Join Date
    Nov 2011

    Member #:115
    Location
    Fort Collins, CO
    Posts
    10,835
    The C4 setup is a front-steer rack that resides under the engine's harmonic damper. All you see is the steering shaft from the column to the rack. There's really nothing on the firewall. I think finding a compatible manual rack would be a challenge too.

    This is a 55 Chevy with a 392 Hemi that we're working on. I installed a 32" column to get the steering shaft angle right, and it worked. It's tight but it fits and that's all you see. It would look the same with an EPS setup, I think.

    20170511_007.JPG

    Here's my Nomad with a 35" column for a better angle.

    06180012.JPG
    56 Nomad, Ramjet 502, Viper 6-speed T56, C4 Corvette front and rear suspension


    Other vehicles:

    56 Chevy 2-door BelAir sedan
    56 Chevy 210 4-door sedan
    57 Chevy 210 4-door sedan
    1962 327/340HP Corvette
    1961 Willys CJ3B Jeep
    2001 Porsche Boxster S
    2003 Chevy Silverado 2500 HD Duramax
    2019 GMC Sierra Denali Duramax

  6. #6
    Banned
    Join Date
    Nov 2015

    Member #:2775
    Posts
    1,426
    It looks like it could be a good setup with for stock 55 manual steering. But only if it has a gear reduction, or maybe it does? The make inline steering quickners for oval track cars I know. That would take room too.

  7. #7
    Registered Member
    Join Date
    Jul 2017

    Member #:3473
    Posts
    15
    OK so this is what got me thinking about this.... I was reading your post on what you have to do with the rack as far as turning it to have room for the lines ..... was trying to find a way around that and ran up on EPS as far as brake booster I was thinking on putting that under the car If I could find a way I have seen it done, all the line and wires are going to be hid I will have ac in the car

  8. #8
    Registered Member chevynut's Avatar
    Join Date
    Nov 2011

    Member #:115
    Location
    Fort Collins, CO
    Posts
    10,835
    Turning the rack is no big deal nor is making the new lines if that's your concern. I may even offer a hose kit for it since I've done it a couple of times now. And again, finding a manual rack to bolt in is going to be practically impossible due to the way the C4 rack is mounted. And you'd have to get the same pivot points and the same mounting height to avoid bump steer. So count on a lot of figuring and fab work, if it can be done at all. The C4 rack is a high performance one with 1.96 or 2.36 turns lock to lock. I don't see what an EPS buys you in this case.

    Also, I don't think you're going to be able to put a vacuum booster under the floor, especially with full-length headers. I know it's been done but I'm not sure how it was done. Maybe a Hydroboost would fit.

    They also make a 90 degree brake MC/booster mount that fits under the dash.

    My solution to a clean firewall was to move my electric brake booster over around 9-10" to the drivers side similar to the stock Tri5 Treadle Vac setup. I have a remote brake fluid tank with a level sensor feeding it. It's all under my custom inner fenders.

    20120308_0012.JPG

    20080205_0010.JPG

    20090228_1237.JPG

    I've been there and considered just about everything . If I was you I would keep the C4 rack and use a PS pump to run it, then put a hydroboost or ABS electric power brake setup either under the dash or under the car. The electric brake setup would cost about the same as the EPS, I think.
    56 Nomad, Ramjet 502, Viper 6-speed T56, C4 Corvette front and rear suspension


    Other vehicles:

    56 Chevy 2-door BelAir sedan
    56 Chevy 210 4-door sedan
    57 Chevy 210 4-door sedan
    1962 327/340HP Corvette
    1961 Willys CJ3B Jeep
    2001 Porsche Boxster S
    2003 Chevy Silverado 2500 HD Duramax
    2019 GMC Sierra Denali Duramax

  9. #9
    Registered Member
    Join Date
    Jul 2017

    Member #:3473
    Posts
    15
    ok I'm not a mechanic what is the last pic of the black ball ?

  10. #10
    Registered Member chevynut's Avatar
    Join Date
    Nov 2011

    Member #:115
    Location
    Fort Collins, CO
    Posts
    10,835
    Quote Originally Posted by SHAUNS56 View Post
    ok I'm not a mechanic what is the last pic of the black ball ?
    LOL! That's the accumulator for the electric power brake system. A pump pressurizes brake fluid to 2500 PSI which is then fed into the booster. The same fluid is used to actuate the brakes. The pump only runs when the pressure drops to a certain point after multiple brake actuations.


    http://www.abspowerbrake.com/ehpm.html

    http://www.abspowerbrake.com/iframearticle3.html
    56 Nomad, Ramjet 502, Viper 6-speed T56, C4 Corvette front and rear suspension


    Other vehicles:

    56 Chevy 2-door BelAir sedan
    56 Chevy 210 4-door sedan
    57 Chevy 210 4-door sedan
    1962 327/340HP Corvette
    1961 Willys CJ3B Jeep
    2001 Porsche Boxster S
    2003 Chevy Silverado 2500 HD Duramax
    2019 GMC Sierra Denali Duramax

Page 1 of 3 123 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •