Engine
The Hypertech Max Energy Spectrum flash programmer is a device designed for the performance-minded individual looking to extract the most from their car or truck. This advanced programmer allows for full control of the vehicle’s ECM, enabling the user to adjust a wide range of parameters that influence the vehicle’s performance.
We saw extreme boost levels in our quest for horsepower from the little supercharged V-6 with out ’94 Supercoupe. With the Magnum Powers MPx supercharger clearly capable of more airflow than we could support (boost climbing north of 23 psi), it made sense to work on the heads-and-cam combination to better deal with some of that boost.
Performance enthusiasts are a funny bunch. They all seem to agree that “as much as possible” is the correct answer when asked, “How much power do you want?” But they certainly
disagree about the best way to get there.
When Chevrolet introduced the LS engine, many clever and effective innovations were incorporated to simplify operations and reduce engine weight and overall dimensions. An integral part of these new technologies was a compact serpentine belt system designed from the start to lower frictional losses, which in turn improved belt strength and longevity.
When you go looking to make huge power from your 5.0-liter Ford, the limiting factor will always be the weakest link in the chain. In the case of our supercharged 331 stroker buildup, the weakest link turned out to be the production block. Like most enthusiasts, we had no budget for a DART racing block or even a Ford Racing Sportsman block, but we decided to tempt fate nonetheless and go for a big power number on the dyno. Considering that the stock fuel-injected 5.0-liter was rated at a measly 225 hp, even a 300hp buildup would offer a welcome change in performance.
While the small-block Chevy is the popular engine choice for many enthusiasts, many are now relying on a Blue Oval heart for their performance bodies. With its link to Ford, the original body manufacturer for many of the classic cars we see today, the small-block Windsor-style Ford engine offers several advantages. When compared to Chevy, the lack of firewall clearance for a number of Chevy engine swaps is due to the rear distributor position of the engine. The front-mount distributor position is the more logical place to drive the distributor and the oil pump. Not to mention, it’s much more convenient.
One of the most misunderstood performance components on any engine has to be the camshaft, or camshafts in the case of our overhead-cam 4.6-liter Ford engine. The difficulty is only compounded when you add forced induction to the mix. From an anatomical standpoint, the camshaft can be likened to the brain, as the cam profile determines how effectively (when and where) breathing takes place.
What makes more power: carburetors or computers? While the ultimate answer is that a sophisticated electronic fuel-injection system will virtually always outpower a carburetor, the real question may be whether the power gains are worth the extra expense and complexity of installing an EFI system.
Some Years Ago, Chevrolet Began Lowering Engine Compression (To 8.50:1) In An Effort To Meet Tailpipe Emissions Numbers. It Also Retarded Camshaft Timing In An Effort To Lower NOX (Nitrides Of Oxygen/Unburned Particulates). By 1974, Horsepower, Torque And Overall Engine Efficiency Had Dropped Some 30 Percent To 50 Percent. Chevy’s RPO L48 And LM1 350 Small-Block V-8s Then Got A Flow-Restrictive Catalytic Converter In 1975, And Finally In 1985, A New Monolith Catalytic Converter, As Well As Direct-Port Fuel Injection And Improved Camshaft Timing, Boosted Horsepower, Torque And Engine Efficiency.
The jump in boost pressure upped the power output from 559 hp to a whopping 613 hp. The peak torque was up as well, from 513 lb-ft to 545 lb-ft.
