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Project EP3 Civic Si: Fixing the @$#%! Steering for Good with SHG Motor Works!

  • Mike Kojima

,

The tie rod bracket is reinstalled.
 

Now the rack can be reinstalled into the car. The steering shaft and the power assist motor are reconnected. 
 

The tie rods are hooked back up and the intake reinstalled. Re alignment is not needed since none of the adjusters for the tie rods have been touched.  Now it's time to go for a test drive!

We were really amazed at what a huge difference in our car's handling that the SHG Motor Works steering rack slide made. The wandering, which had progressed to scary proportions, was now totally gone. 

The weird steering feel and stickiness that we had wrongly attributed to the electric power steering was also largely gone. You could now feel that the car had better self-steer and you could also feel the feedback that positive caster gives you against steering wheel movement. There was still some numbness that is typical of a lot of electric power steering systems about the center of the steering so it was not perfect but it was 100% better than it was.

After talking to several other EP3 and RSX owners, the wandering steering is a very common issue with these chassis and this is the cure for the problem after the bump steer is reduced with other parts.

Now we can finally say that our EP3 handles great and we have largely fixed all of the platforms bugaboos. It's time to hit the track and get a feel for how our car will do.  With our handling and brakes dialed, now we will start to think about upgrading the cars engine, drivetrain and cosmetics. The fun will begin!

Sources

SHG Motor Works

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9 comments
  1. Kushal says:
    March 14, 2020 at 12:00 pm

    Hi Team,

    This is Kushal from Mauritius and i need your help guys.

    Great explanation, i will be doing it on my Honda soon but something is really bothering me.

    I have already removed the steering unit from the car and it was removed while the steering was in center position.

    My query is that how will i be able to move the slider to the end side to get it out so as i can grab it?

    Thanks in advance for your reply.

    Regards,
    Kushal.

    Reply
  2. Kor XJ says:
    March 28, 2020 at 10:26 am

    If you already have the unit out of the car all you would have to do is move the dust boot. Take off the band clamp then move the boot enough to go past the slider to do this install.

    Reply
  3. Kushal says:
    April 10, 2020 at 9:37 am

    Hi KorXJ,

    Thank you very much for the reply. Will do it soon.

    Reply
  4. Jeff says:
    October 21, 2022 at 4:28 pm

    Would it help to install the SHG MotorWorks part before doing the other “bump steer” modifications.

    Jeff

    Reply
    1. Avatar photo Mike Kojima says:
      October 21, 2022 at 4:50 pm

      Yes, it’s needed even on a totally stock car.

      Reply
  5. TJ says:
    May 6, 2024 at 2:11 am

    Good morning Mike. This series is so helpful thank you. What’s your opinion on the steering rack raiser kits that raise the tie rods? They are supposed to raise the angle of the tie rods for lowered cars.

    Reply
    1. Avatar photo Mike Kojima says:
      May 6, 2024 at 12:03 pm

      I think the rack height adjuster is probably a better solution but it was not available when I did this many years ago. You do have to be careful of tie rod clearance to the body though and the best solution is probably an adjustable riser with the tie rods.

      Reply
  6. James says:
    August 8, 2024 at 12:41 pm

    I recently did this work on my 02 EP3 along with tie rods and other work. I had to take the steering column off from the steering rack to take it out the car. The car now unfortunately has an effortless turn to the left but a stiffer turn to the right. The steering also does not center itself when turning left but it will when turning right. Any help or insight as to what could have gone wrong would be a great help.

    Reply
    1. James A says:
      September 15, 2024 at 7:40 am

      Update on the EP3, it turns out it was my torque sensor. It’s the little black box around that pinion gear. I took my Rack out through the drivers side wheel well and took that torque sensor off thinking it would help me remove it. BIG MISTAKE as removing it requires the torque sensor to be recalibrated. Honda DOES NOT SERVICE RACKS so asking them to do it would lead you nowhere….Although I’m sure it’s possible if you have a scan tool to read the torque values. So I ended up grabbing a used rack locally and installed the SHG slider with the ford grease and properly removed the old rack and installed the new rack through the top of the engine. It’s tough but it can wiggle out.

      Reply

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