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Project EF Civic Racecar: Fixing the Front Suspension

  • Dave Zipf
New wheel bearing and lower balljoint installed in the upright.
We cleaned up as much of the rust as we could from the hubs and reassembled the upright. We replaced the balljoints with OEM replacements from Hardrace, then we pressed the hubs back in. We also picked up a set of new axle retaining nuts to make sure our new suspension stays together.
New tierods on the left, old on the right.
We replaced both inner and outer tie rods. I wanted a set of Hardrace hardened inner tie rods but the lead time was up to 6 months. We settled for Delphi OEM replacements instead.
PCI tie rod left, stock tie rod right. PCI tie rod has a big spherical bearing and spacers to adjust bump steer
For outer tie rods we went with Pro Car Innovations’ adjustable tie rods. The bearing in these tie rods is much larger than stock for better steering control. They are also shimmed so we can adjust out bumpsteer. These are designed to mount to the topside of the knuckle like stock and are not meant for overly lowered cars.
Front suspension and brakes installed in the Civic. Lots of shiny new parts on a rusty old car.
After weeks of after work wrenching, degreasing, pressing, hammering, drilling, and busted knuckles we have a front end worthy of a racecar. No more rubber bushings, no more crusty wheel bearings, and no more grease oozing balljoints. We even have freshened brakes to make sure our Civic stops on a dime! The Kingpin arms are so buttery smooth that with the damper unbolted you can lift the entire suspension assembly with two fingers. It is insane how little stiction there is in our suspension. Once we get the rest of the car assembled we can align the car and see how much better our Civic handles. We’ll be covering the rear end and brake work soon, so stay tuned!

Sources

Kingpin Machine

Crazy Coatings

Specialty Products Company

Energy Suspension

Prothane Suspension 

Pro Car Innovations

Delphi Auto Parts

Hardrace

AC Delco

ARP Bolts

More Civic

Part 1: Redheaded Stepchild 

Part 2: Dusting Off The Cobwebs 

Part 3: Witchcraft & Wizardry

Previous page 1 2 3 4 5 6 7
Related Topics
  • Honda
  • Steering
  • Honda Civic
  • EF Civic
  • Kingpin Machine
  • suspension
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4 comments
  1. Tsukiji Fish Market says:
    August 18, 2025 at 4:47 pm

    Really looking forward to updates. This takes me back to Sport Compact Car days.

    Reply
    1. Dave Zipf says:
      August 18, 2025 at 5:58 pm

      Glad it brings back happy memories. Got lots more coming. Thanks for reading!

      Reply
  2. Khiem Dinh says:
    August 20, 2025 at 8:36 pm

    I absolutely loved the Kingpin spherical bearing setup on Project S2000. All that suspension work is going to transform the car. What can you do to stiffen the chassis within the rules?

    Reply
    1. Dave Zipf says:
      August 21, 2025 at 4:32 pm

      Well it’s already got a rollcage and front strut tower brace. We can add a few more per the rules. I would like to add to the cage as it is very basic. Could use some extra diagonals.

      Reply

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