• Welcome to CivicXI.com everyone!

    If you're joining us from CivicX.com, then you may already have an account here!

    As long as you were registered on CivicX.com as of May 24, 2020 or earlier, then you can simply login here with the same username and password!

Search results

  1. 2023 Civic Si Spring Rates, Motion Ratio, Ride Frequencies, Autocross

    Glad you liked the FK8 front spring mod :thumbsup:
  2. TSP FE1: a spicy Si

    What did the Gin make on pump, and do you guys plan on having any upcoming Black Friday sales on this turbo?
  3. TSP FE1: a spicy Si

    It looks like they are gonna try and retrofit FL5/FK8 brakes to the Si.
  4. Lugging the turbo?

    The one thing I would try to refrain from doing is low RPM + high load. Low RPM + low load is usually fine, either downshift or bring the RPM up a bit before going full throttle. Low RPM and high load is a recipe for pre-detonation, use premium fuel if you insist on doing it.
  5. Aftermarket Clutch Recs?

    I would just get the Sirimoto CMC kit. comes with an all new Willwood CMC and stainless clutch line.
  6. Help with improving handling

    A good set of high performance summer tires is likely your best bet.
  7. California AFE Takeda Exahaust for Si

    So... is it a true 3" connection at the front pipe or not?
  8. California AFE Takeda Exahaust for Si

    @ValkenDnB do you have any pics of the part that bolts up to the front pipe? I'm possibly interested in purchasing one of these exhausts and was wondering if it was a true 3" pipe where it meets the front pipe. The Remark is 2.5" then expands to 3".
  9. [Now Available] AWE Exhaust Suite for the FE1 Civic Si / DE4 Acura Integra

    @Sara/AWE is the downpipe connection a true 3"? For example it would potentially bolt up to a true 3" aftermarket downpipe without any bottleneck?
  10. 2023 Civic Si Spring Rates, Motion Ratio, Ride Frequencies, Autocross

    No, there is still preload on the spring once the top nut is seated completely. I was able to push the top hat down by hand to get the nut started without any compressors.
  11. 2023 Civic Si Spring Rates, Motion Ratio, Ride Frequencies, Autocross

    The Si ride is already pretty firm, the FK8 springs don't make that huge of a difference in ride quality, but it's definitely firmer. I can tell the car feels way more even though, stock the front felt much softer than the rear over bumps. 90% of people likely wouldn't feel the difference in my...
  12. 2023 Civic Si Spring Rates, Motion Ratio, Ride Frequencies, Autocross

    It keeps stock height. I bought a set of low mileage (500 miles) used OEM springs for $75 locally on FB marketplace. Once installed it took a few weeks for the springs to settle but they sat at stock ride height once broken in. The FK8 springs go right in without any issue, they are actually...
  13. 2023 Civic Si Spring Rates, Motion Ratio, Ride Frequencies, Autocross

    The cheap and easy option to up the front spring rate is a pair of OEM FK8 CTR front springs, which are 263 lb. springs. They really seem to balance the feel front to back and the stock shocks handle the rebound no problem. The increase in front spring rate definitely increases the roll...
  14. SiriMoto N1 Clutch Master Cylinder (CMC) Upgrade Kit!

    From the description, this kit doesn't need the N1 damper delete. There is a new stainless line that goes from the new Wilwood master to the OEM slave.
  15. 23 civic SI fuel grade question

    In the owners manual it says CVT models can use 87, manual models need to use 91 minimum.
  16. Rv6 drop in turbo R365 BB

    Are there any specs or power figures about this turbo? Or is the customer base the beta testers?
  17. Anyone compare 10th and 11th gen downpipes?

    I would check FB marketplace for a PRL HVDP, they are out there. I was able to snag a new one before they got discontinued, not one CEL since installing it almost 5k miles ago.
  18. Genesis Brembo/w Nissan Rogue 3 seat rotors

    You use Hyundai Genesis pads made for the vehicle the calipers come off of.
  19. 27WON 11th Gen Honda Civic Turbocharger Design & Development

    I think the first turbo upgrade should be the quicker spooling option vs. a lazier one. I like the idea of a 310-330whp, 300wtq capable turbo (on pump 93) that hits peak TQ around 700 rpm later than the OEM turbo. It should keep the OEM rods happy, there's no need for fuel system upgrade, and...
  20. PRL N1 Exhaust VS Megan Racing single exit

    Megan Racing is 2.3" vs. PRL full 3". If you have the PRL downpipe/frontpipe combo already it makes sense to keep it full 3" all the way through. If you just want the frontpipe back section you likely wont see any difference between the two, or even stock for that matter.


Top