Jeepin koneen tarina ja muutama kysymys

[KoniJeep]

Renix vs H.O

Whats the difference in the 4.0 and the 4.0 high output engine in the jeep Cherokee?
Answer:


87-90 is the 4.0 with the RENIX (Renault/Bendix) fuel injection system. This is considered the "low output" motor.

91-06 is the 4.0 High Output with the Chrysler fuel injection system. Cherokees 91-96 and Wranglers 91-95 were badged as "4.0L, High Output".

The main difference between the two is the head flow characteristics. The ports in the head for the intake/exhaust are bigger and flow more freely, along with a change in camshafts and the deletion of some sensors, such as the knock sensor found on the RENIX 4.0s. The throttle bodies are also different between the two, intake manifold changes did not come about until 1999 and exhaust manifold changes did not come about until 2000, when Chrysler also switched to the coil on plug ignition system.

Personally, I believe the exhaust manifolds on the later 4.0s(2000-2006) are of a much better, 2 piece design. I say this because they do not have the tendency to crack much like the manifolds of earlier years. Unfortunately, this also brought on the addition of 4 oxygen sensors and two pre-cats in the exhaust stream of many 4.0s produced in this time period.

The Renix's are pretty much bombproof, get better MPG's, and are better for building strokers. In driving a Renix compared to an early HO motor, it feels like the Renix is more powerful, because it's got a fatter torque band down low.

Visually, the Renix is a vacuum-line MESS compared to the HO motor. Also the valve covers are different; the Renix valve cover is an unfinished aluminum cover and the oil cap is yellow. HO valve covers are powdercoated black with a regular black oil fil cap.

Renix motors are typically better for building strokers and can take more abuse than a HO motor,

http://www.pirate4x4.com/forum/jeep-...vs-4-0-ho.html
Netistä lainailtuja.