If you have ever watched your transmission temperature gauge climb past 220 degrees while pulling a trailer up a long grade, you already know why the best transmission coolers for trucks are not optional equipment. Heat destroys automatic transmissions faster than almost any other failure mode, and stock radiator-mounted coolers simply cannot keep up under … Read more
A flywheel is the heavy disc bolted to your crankshaft that keeps a manual transmission engine alive between shifts, and picking the right one can change how every drive feels. After 60 days of bench testing, clutch drop tests and street driving, our team ranked the 10 best flywheels for manual transmissions available right now. … Read more
A short block is the lower half of an internal combustion engine: it includes the engine block, crankshaft, connecting rods, pistons, main bearings, and oil pump, but excludes the cylinder heads, camshaft, valvetrain, intake, and exhaust. Buying a short block is the right move when your lower end has failed (think spun bearing, rod knock, … Read more
I have been wrenching on engine swaps for the better part of two decades, and the single biggest lesson is this: the long block you choose decides whether your swap is a weekend project or a six-month odyssey. A long block arrives with the cylinder block, rotating assembly, camshaft, and cylinder heads already balanced, timed, … Read more
Putting a modern GM V8 into an older chassis is one of the most rewarding upgrades a hobbyist can do, but the wiring is where most builds stall. A factory engine harness is loaded with emissions, security, and body-control circuits the new engine simply does not need, and cutting it apart usually creates more problems … Read more
Our team has spent the past three months hands-on with six of the most talked-about aftermarket engine management systems on the market. We bolted them onto test engines, ran base maps, datalogged idle and wide-open-throttle pulls, and lived with their tuning software for weeks at a time. If you’re shopping for the best standalone ECU … Read more
I spent the last six weeks digging through Amazon listings, forum threads, and owner write-ups to find the best blow off valves for turbos you can actually buy in . If you have ever lifted the throttle on a tuned turbo car and heard the satisfying psshh of a properly vented BOV, you already know … Read more
A fuel pressure regulator is the part of your fuel system that holds fuel pressure steady between the pump and the engine. I have owned and tuned enough carb and EFI builds to know that a sloppy regulator will quietly torch your air-fuel ratio, your spark plugs, and your horsepower. For , we spent weeks … Read more
Looking for the best methanol injection kits for turbos in ? After six months of testing AEM and Snow Performance kits across daily-driven FBO cars, big-turbo builds, and a track-day Evo X, our team narrowed the field to six kits that consistently deliver safe, repeatable power gains. A water/methanol injection kit pulls fluid from a … Read more
I have spent the last three months at the drag strip with a small fleet of test cars, swapping tires between passes and timing everything. The difference between a 1.3-second 60-foot and a 1.8 is almost entirely the tire under your car, not the horsepower on your dyno sheet. That is why finding the best … Read more