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Engine Tuning

Four Wheeler’s Engine Technical Articles section showcases hands-on customization and installation of products and accessories designed to improve the performance and function of your truck or SUV’s engine.

4x4 Truck & SUV Engine Tuning

1987-2006 Jeep 4.0L Inline Six - Inside The Inline
Part 1: The ins and outs you need to know to turn a 4.0L Jeep torque motor into a high-horsepower 4.6, with comparisons of internals such... more
Stover's Stroker - Chevrolet Bowtie Sportsman Engine
Part 1: A Bow Tie Stroker Engine For Mud Bogging And Heavy Hauling more
Tips & Tricks To Better Fuel Economy
Check out 19 ways to improve your miles per gallon with these tips and tricks! more
2005 Ford F350 6.0L Power Stroke - Six-Liter Shenanigans
When it debuted a couple of years ago, the new 6.0L Power Stroke amazed everyone by making more power from fewer cubic inches of... more
Project NissanTitian - Supercharger Install
We install a supercharger in this Nissan Titan which appeared in 2005 Top Truck Challenge! more
Spark Plugs - Plug 'N' Play
We all know that an automotive spark plug is a device that forces a high-voltage charge of electricity to arc across a gap, thus igniting... more
Exhaust Parts Buyers Guide
From headers to after-cats, a look at 25 of the hottest new parts to help your engine pass gas! more
The New 2006 Duramax Diesel
A 650 lb-ft gorilla with a six speed auto is coming to a dealership near you. more
2005 Diesel Parts Buyers Guide
A look at more than 40 hot new products for GM, Ford, and Dodge oil-burners, from turbochargers to tailpipes! more
EFI Facts & Fallacies
Expert answers, advice, and tips to help you tune your rig's injection system for maximum power and performance! more
Crate Engines & Blocks Guide
From 1,000hp diesels to race turned Toyota mills, our guide to the hottest new engines for your 4x4! more
Moderating Temperatures
Restoring your 4x4's cooling system is an easy and affordable fix! more
Engines Au Juice
Is There A Hybrid In Your 4x4 Future? more
Power In A Box
Open Box, Add Tools, Get Performance more
Propane Injection - Gas for Diesels
Gas for Diesels more
Horse Power 101
What To Put Inside Your Engine To Get More Power Out Of It more
Magnaflow Performance Exhaust
The latest crop of diesel engines is more powerful than ever before. more
Getting Hotter Spark
Easy Ignition more
Air Intake Upgrade
Easy Inlet more
Jet Computer Module
Plug-in Performance more
A Nitrous Oxide Primer
Does a 4x4 Need Nitrous? more
Banks Exhaust Brake For Diesel Trucks Towing - No More Burning Brakes
Harness Your Diesel's Stopping Power more
The Ultimate Carb Test Follow-Up
The Next Best Thing To Fuel Injection? more

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Technical Articles by Category

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Blogs
Insider Outlooks

Top Finishers of TTC 2013
Top Truck Challenge just wrapped up last Friday and we will be bringing you more in depth coverage... more
Big Splash, Low Score for Jeep's Dive Into Pool
Ohhhhh Canada...... more
Gearing-Up For Top Truck Challenge
We’re just about ready to head on out to Top Truck Challenge at Hollister Hills SVRA. We’ll be... more
Stronger JK Axle Shafts
Looking to upgrade or replace the axle shafts and steering U-joints in your '07 to '13 Jeep... more

Forums
Community Voices

4-Wheeling @ Prairie City SVRA
Hey, guys! We took our XJ's out for a trip to our local SVRA park. Did some hill climbing and a... more
Opinion on my Project Vehicle / Jeep TRANSPORTER
I have built a 2012 Jeep JK Truck. We have named it Jeep "Transporter". Please go to:... more
2013 Silverado 1500
What is the widest tire I can run on factory 18's with only a 2" leveling kit?... more
1990 GMC Sierra K1500 TransMission issues
i have a 1990 GMC reg Cab Stepside i built the engine in it shes got about 400 hp but the... more

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