Engine & Transmission

Performance, an utterance that makes most gear heads, like us, ponder solely about power improvements. In the case of our ’05 Chevy Silverado 2500 with the venerable Duramax Diesel, it’s that, and more – much more as you read below. With the price of diesel over $3 per gallon and some long-haul trips with a loaded trailer on our calendar, …

 We had a dilemma in our 4X4REVIEW.COM sponsored, EKCO Racing pro rock crawler buggy. The rig used to have a 10-year old, all-aluminum, mystery radiator that wasn’t keeping the rig cool anymore, no matter what we did. When Rob Stapleton – driver – contacted me with his dilemma, I told him I knew just what to do. We put a …

The to-do list for Project Buckshot is down to its last few items, which means it’s almost time to bust this beast’s cherry and get it out on the road for the first time. But, before we can even pull it out of the shop, we need to transfer power from that 420 H.P. Dominator engine to the wheels – …

Installed on: 1977 Jeep CJ5 If you have ever had a motor mount break you know how troublesome it can be. You should also know that replacing the old rotten ones are an easy task. Well to avoid all of this, We installed a set of M.O.R.E. (Mountain Off Road Enterprises) bombproof motor mounts. These are the highest quality motor …

Fuel injection, it’s what most people want on their 4-wheel drive. It’s economical, it’s reliable and you don’t have to worry about stalling the motor during steep ascents, descents or side-hilling. Moreover, we typically find ourselves looking for both an easy and cost effective way to upgrade our rigs. When I started my project Land Cruiser, I knew exactly what …

No matter how your four by four is used, rock crawling, mud slinging, or Boulevard cruisin, engine performance is always a primary concern. There are many simple bolt-ons that can enhance engine performance. The K&N replacement air filter is such an item. The idea behind the K&N filter is simple, rather than replace your auto parts store paper element every …

I ’m sure you have seen, readh or heard of several companies that tout some sort of ignition upgrade system. Especially those that make claims to improve your vehicles performance in one way or another. Well, I decided to give it a whirl and called Jacobs Electronics (1-800-627-8800). Their ads caught my eye with their prominent money back guarantee of …

  Texas in the summer.  Such a mild climate.  Perfect for wheelin’ in the scorching heat with little to no air passing through the radiator. Note the sarcasm, because we’re laying it on pretty thick.  One of the key areas that we need to address on Project Over Easy is the effectiveness of the cooling system.    FlowKooler advantage: FlowKooler …

  One of the big problem areas for our Project Over Easy Scrambler was the cooling system, with the biggest offender being the radiator. The old brass radiator had been modified to support the small block V8 engine conversion but had become a little worse for wear. Additionally, the unshrouded flex fan driven directly off of the water-pump pulley was …

Tired of dealing with a leaky transfer case? Want added gear oil volume to aid in cooling and lubrication? Admire fine American craftsmanship? If you’ve answered yes to any of these questions, Novak Industries has a product for your Jeep – the Novak Billet Transfer Case Pan.  The 4x4Review.com team has been on a mission to enhance the performance of …