Painless Performance - PERFECT HI-TORQUE EMS Jeep 4.0L/1991-1998

This PERFECT system includes a cam shaft custom ground specifically to get more torque and horsepower from your otherwise stock 4.0L engine.  As tested on our Digalog engine dyno, with this cam and the PERFECT engine management system on your 4.0L engine expect to gain 20 horsepower and 10 lb/ft torque.  It also allowed for 19mpg in a 1989 Jeep Wrangler with 31-10.50 tires and a three speed automatic. At 70mph it was taching at 2800rpms and not missing a beat. Wait til you step on the loud pedal with this one in your ride. PERFECTTM System Advantages over OEM

1. Works with any 1991-1998 Jeep 4.0L engine.
2. Weather-proof ECM, fuel injection harness, fuseblock and relays.
3. Electric cooling fan control.
4. Electric fuel pump control.
5. Diagnostic port with check engine light.
6. Precalibrated ECM for maximum low-end torque.
7. PERFECTION Calibration software available as a kit including harness and ECM P/N 65252 or by it self as P/N 65245.
8. Adaptive idle strategies which monitor electric cooling fan amperage load and A/C compressor load on engine and maintain appropriate engine idle rpm.
9. Adaptive idle strategies which monitor vehicle movement to maintain appropriate engine idle rpm. 
10. 4.7L stroker engine adaptable through the use of the PERFECTION software.
11. Smooth torque and horse power curves gives you no surging on the highway and great low rpm drivability.

65141 PERFECT Camshaft SpecificationsValve Lift (Int/Exh): 0.448/0.458

Duration (Int/Exh):  280/288

Figures @ .050" Tappet Rise

Valve Lift (Int/Exh): 0.288/0.280

Duration (Int/Exh):  208/214  Line: 106Rocker Arm Ratio: 1.60