Building a better six
Chrysler Computer Fault Codes
Edge Trail Jammer Performance Kit
Hesco Supercharger Install 4.0 ZJ
How to replace the rear main seal
Jeep 4.0 Turbo
Jeep Engines book
Jeep Owner's Resource
Venom VCN-1000 Jeep 4.0 nitrous kit

Dino's Tech Webpages

CTS Resistor Trick
Custom Stroker Exhaust
Custom Traction Bar
Dual Electric Fan Conversion
Electrical System Upgrades
Exhaust Pipe Sizing
IAT Sensor Relocation
Indexing the Distributor
Intake Manifold Heatshield
MAP Adjuster
Mustang 65mm Throttle Body Conversion
Oil Catch Can
Oiling System Upgrades
Oil Temperature Gauge Install

Info. Pages

Automotive Racing Formulae
Jeep 4.0 Camshaft Specifications
Jeep Dyno Graphs

My Favorite Sites
Jeeps Unlimited Forum Discussion forum about Jeeps.
Jeep Strokers forum Thinking about building a stroker out of your 4.0L engine, or already have, then look around this site for useful tech tips and info.
NAXJA forum North American XJ Association forums.
Off-road.com Cherokee America. Cool tech articles and info.

Tech Articles and Performance
Horsepower vs. Torque What's the difference, why it matters, and how to get it.
Borla cat-back exhaust Chassis dyno test of Borla cat-back exhaust
Dynomax Super Turbo Exhaust Dyno test of this performance exhaust system.
Throttle body spacer Poweraid TB spacer product review.
Project mpg How to get more horsepower and mpg from your rig.
Project Power ZJ Dyno test of various performance products on a 4.0 ZJ.
The Power Squeeze How to use compression to maximize engine performance.
JP Magazine Higher Output: Adding 20rwhp/18rwtq to the 4.0L.
Engine Building Tips By Speedomotive.