Honda Civic Race Car specification (CLRLNE)

1993 Honda Civic EG4, 3 door hatchback, club-sport race car.

  1. 1996 spec VTec Type R B18c JDM engine, built by Shane Parsons, S&T Automotive, Cambridge, Waikato (December 2015),
  2. Brian Crower BC0012 cams (Stage 2, 11.99mm lift: 300° duration = 248°@ 50 thou),
  3. Ferrea valves,
  4. BC0010 valve springs,
  5. Gates timing belt,
  6. Skunk2 adjustable cam pulleys,
  7. Wiseco forged pistons (#6593M815AP)
  8. Molnar forged conrods,
  9. ACL race series big-end & mains bearings,
  10. Moroso winged sump,
  11. 30psi additional oil pressure switch with bright warning light, oil pressure and oil temperature gauges on the dash, all plumbed in Aeroflow.
  12. 1000cc XSpurt Injectors,
  13. Magnecore HT leads,
  14. NGK R5671A-8 spark plugs,
  15. MSD ignition,
  16. S90 70mm throttle body,
  17. Blox throttle position sensor,
  18. “Whalepenis” air intake,
  19. Cold-air box fed from a duct in the front bumper,
  20. HyTech step tube 4-2-1 stainless headers,
  21. 2.5″ stainless exhaust, Adrenalin R resonator & muffler,
  22. Aeroflow AF49-1041 in-tank replacement fuel pump,
  23. Aeroflow AF66-2055BLK billet fuel pressure regulator (1200hp),
  24. Skunk full-width aluminium radiator with SpeedScience fan kit (vented to improve airflow),
  25. Double cam cover & single crankcase breathers with 2-litre oil catch tank (ex Motorsport Fab Services, Chch),
  26. Skunk2 VTec solenoid bung,
  27. Link Atom Programmable ECU with shift light,
  28. Tuning by TMS, Kapiti, & Chris Wall at Prestige, Petone, Wellington
Transmission
  1. Innovative engine mountings (all 3), 85-grade bushes in the rear one,
  2. Lightweight chrome alloy flywheel,
  3. 6-puk competition clutch (from MP Autoparts),
  4. S80 gearbox,
    • Standard 1st & 2nd gears,
    • MFactory close ratio 3rd, 4th, 5th including dual carbon synchros.
    • 1st gear = 3.230:1,
    • 2nd = 2.105,
    • 3rd = 1.636,
    • 4th = 1.310,
    • 5th = 1.054.
    • Final drive ratio = 4.40:1.
    • (Calculated speed @ 8500 rpm in 5th gear on 205-50 x 15 tyres = 202.7 km/hr).
  5. MFactory 1.5-way plate type Limited Slip Differential.
  6. Transmission built by Oli Hendra, WAGS, Lower Hutt.
  7. K-tuned Pro gear lever, with extra extension to reduce reach.
Brakes
  1. Civic Type R 5-stud hubs with Znoelli 282 mm slotted rotors,
  2. Pagid RSL-29 (yellow) front pads,
  3. Braided hoses front and rear,
  4. Front-rear split brake hydraulics,
  5. Driver adjustable brake bias valve (from Racetech).
Front suspension
  1. Integra Type R subframe & sway bar,
  2. Tegiwa rigid subframe collars,
  3. Polyurethane bushes throughout,
  4. Hardrace lower control arm bushes,
  5. Hardrace rack mounting bushes,
  6. XYZ Top Sport coil-over adjustable shocks,
  7. Blox Adjustable top arms,
  8. Type R aluminium strut brace.
  9. 16 kg/mm springs
  10. 2.3° negative camber: 4.2° caster:  2 mm total negative toe (2020-01-17).
Rear suspension
  1. XYZ Top Sport coil-over adjustable shocks,
  2. Hardrace trailing arm and sway bar bushes,
  3. ASR Adjustable sway-bar end-links
  4. Integra Type R sway bar.
  5. 7.5 kg/mm springs
  6. 0.5 degrees negative camber:  1.1 mm total negative toe (2020-01-17)
Body
  1. Racetech 4009 FIA certified seats,
  2. Racetech 6 point harness HANS type (driver side),
  3. Sabelt 6 point harness (passenger side),
  4. MSNZ homologated roll cage inc easy access side intrusion protection, dash bar and integrated seat mounting frames, built by Matt Hendra, MNIMAT Engineering.
  5. OMP cast aluminium navigator’s footrest.
  6. 320 mm leather steering when on a Sparco quickly detachable hub,
  7. FullRiver Hardcore sealed battery mounted behind passenger’s seat,
  8. Switchable USB (x2) and 12V dash-mounted power sockets with a digital battery voltage meter (sockets are for GoPro camera,  10 Hz GPS detector and cell-phone power for lap timer app),
  9. 2 kg fire extinguisher,
  10. Ducted front bumper,
  11. Carbon-fibre bonnet,
  12. Carbon fibre rear spoiler.
  13. Brake and throttle pedals centred to improve the driving position
Wheels & tyres
  1. 15 x 7 Lenso PDF wheels, stud pattern = 5 x 114.3 PCD @ +40 offset
  2. Nitto NT01 or Dunlop  Direzza 03G Soft tyres, 205-50 x 15,
Corner weights

80kg in driver’s seat
LF – 348 RF – 353
LR – 187 RR – 216
Total – 1103.5
Front – 63.5%
Rear – 36.5%
LHF Diagonal split – 51.09%
RHF Diagonal split – 48.91%

106.5 kg in driver’s seat
LF – 351.5 RF – 363.5
LR – 190.5 RR – 224.5
Total – 1130
Front – 63.3%
Rear – 36.7%
LHF Diagonal split – 50.97
RHF Diagonal split – 49.03

191023 Dyno plot