4P Tr3 Racing Camshafts - K20 C1 Type R

The 4P TR3 racing camshaft was specifically designed for our 2.0L K20C1 race engine program. The primary lobes allow for a stock idle and tame drivability perfectly suitable for everyday use in traffic, but with significant power gains over stock.  You will experience a much more audible and traditional VTEC crossover that was lost in the OEM K20C1 and much more RPM capability over an OEM camshaft.  These are made from a billet core camshaft to ensure maximum durability

Gains of 40-60+hp are realized through the RPM range, and more as you continue to pull beyond 8000 rpm.   Camshafts are supplied with cam card and VTC limiting pins with detailed photo for their placement.

Intake Lift - 0.491"
Intake Duration - 234 @ 0.050"
Exhaust Lift - 0.494"
Exhaust Duration - 238 @ 0.050"

**Aftermarket Valve Springs are Required for the TR3 Camshaft.  They will coil bind a stock valve spring**

Required Valve Spring:

• 4P Spring KIT TRKTR3
• **Ferrea KT4033 with SL1153 spring seat on exhaust cam**
  Spring will Coil Bind if you do not use SL1153 spring seat on exhaust
• Ferrea KT4038 can be used but it eliminates VTEC

Recommended Rocker Arm:
OEM Honda Rocker Arm

Camshaft Test Data

(7) K20C1 Camshaft Testing - Unlocking the RPM, sound, and power we all love in a Honda Racing Engine | 2016+ Honda Civic Forum (10th Gen) - Type R Forum, Si Forum - CivicX.com