In reality, the added weight of the Turbonetics 62-1H turbo and other related components basically offsets any serious weight advantage,” says Urist. Ford isn’t alone in offering high-power crate engines for racers and hot-rodders. This can be somewhat alleviated by using a smaller-size turbo, perhaps a pair of much smaller turbos, or by making refinements in the exhaust system to intensify the exhaust pulses as much as possible, providing more energy against the turbine wheel. 21. Turbos are similar in appearance to a centrifugal supercharger but very different in operation. For example, in order to achieve the necessary clearance needed to route the ducting from exhaust-toturbocharger, from turbocharger-todown-stream exhaust, and from intercooler-to-throttle body, it immediately became obvious that we would first have to replace that bulky factory stamped-steel K-member with something that offered less space restriction. And just as importantly, how easy is it to install? Before calculating the compressor pressure ratio, you must decide what the maximum boost pressure will be (e.g., 7 psi). When it comes to popular street applications like the Ford Mustang that does not appear to be a major issue. The provided oil return line punch is used to make a hole at the front of the 4.6L oil pan dead center, approximately 1 inch down from the lip using a hammer. The thick-deck, TFS heads were secured using Fel Pro MLS head gaskets (.053 thick and 3.950 bore) and ARP head studs. This turbocharger is ideally suited for 4.6L mod motor Mustang applications. Dyno tests with Hellion’s 4.6L modular-engine kit have produced a best of 430.2 hp at 4,400 rpm and 517 ft-lbs torque at 4,250 rpm. But how much power does Hellion Power Systems, 4.6L SOHC Mustang mod motor turbo kit actually make? For racing applications, the company also offers the Y2K-Series and Big Thumper Series turbochargers. What many enthusiasts don’t realize is that your normally aspirated motor is already running under atmospheric pressure of 14.7 psi. A 9⁄16-inch socket and ratchet is used to tighten the 3⁄8-inch bolts and nuts, which secure the Y-pipe to the cat-back system. This also allows you to tune your timing and air/fuel ratio based on a consistent maximum boost level. It will be necessary to subtract 0.5 psi from 14.7 psi for each 1,000 feet altitude above sea level to determine approximate atmospheric pressure at those altitudes. The wimpy 5.3L truck cam was first replaced by a healthy 281LR HR13 cam from Comp Cams. You also have Borg Warner Turbo Systems Air Werks aftermarket turbocharger program, which like Garrett Air Research’s GT Performance Distribution Network, also boasts a complete list of national distributors and dealer/installers. Garrett’s quick-spooling GT-45R model is ideal for 4.6L to 8.1L engine displacements. This is how the Hellion Power Systems intercooler ducting should look when fully installed. 19. The vaunted 289 High-Performance engine was said to make 271 hp. We will skip right past the notion of whether you really need 1,000 hp, and jump right into how to get 1,000 hp. Here we see our installers laying up the main turbo inlet pipe. The street turbocharger segment of the automotive performance aftermarket is more of a tuner’s niche market than a bolt-on kit market. Next comes placement of the steel shim (turbine inlet gasket) between the turbo and inlet pipe. The turbine wheel responds by stepping up its rotational speed and spins the impeller within its preferred range. 38. “Every computer is different, and every car is different,” replied John. With the Hellion Power Systems turbo kit fully installed, it’s off to the dyno shop. BluePrint Engines Ford 306 C.I.D. The two factory downstream O2 sensors are reinstalled into the Mustang main wiring harness. are so scarce with these (modular engine) cars, we know that we can hit the nail right on the head with our own calibrated fuel system.”. On the other end of the double barrel pipe, the 3⁄8-inch Torx clamp that secures the stainless-steel Y-pipe in place is installed. Obviously, hardcore mod motor Mustang enthusiasts will immediately pick up on the fact that the Granatelli K-member is considerably lighter than stock. Garrett Air Research is renowned as one of the world’s leading manufacturers of turbochargers for both diesel and gasoline engines. Book builds an assortment of naturally-aspirated engines from different manufacturers, but this Mopar-based mill seems to be the king of the small-blocks he’s built. One end is attached to the factory MAF, and the other end is attached to the turbocharger, which is secured by a total of four 4-inch hose clamps. Before making the power modifications, we disassembled and cleaned the LM7, honed the cylinders and decked the block. The LS based small-block engine is the primary V-8 used in General Motors' line of rear-wheel-drive cars and trucks. But how do you select the right size turbocharger to suit your specific application? Not long ago, 1,000 hp was the holy grail of power, but today, 1,000-hp street cars have become common place. I guess you could say that while the supercharger lends itself to the backyard kind of mechanic, a turbocharger needs to be set up by a competent automotive technician, and be set up properly!”. They are detailed below. This modern take on the iconic Ford 427FE motor will leave you speechless. 29. The engine will be naturally aspirated and be high RPM and high compression (7500 RPM/14.5:1 Compression) The engine is going in a 1991 Ford Mustang that came with an EEC4 A9L processor. I found four (4) companies that are producing 5.0L and/or 4.6L turbo kits for smallblock Ford V-8s. You’re either swapping in an AOD, AODE, or 4R70W, or you’re removing and reinstalling one. Perhaps the subtitle of this paragraph should have just read, “Mustang Street Turbo Kit Market,” because these days, that’s where all the action is. These initial modifications are undoubtedly the most labor-intensive parts of the entire turbo system’s installation. This compact unit mounts ahead of the front radiator bulkhead, directly below the Mustang’s air-conditioning radiator, thereby taking full advantage of the car’s front air intake opening in the bodywork. By now, you should be aware that the power output of any boosted (turbocharged) motor is a function of the power output of the normally aspirated motor multiplied by the boost pressure (pressure ratio). Page 1 of 1. There are a number of top-flight turbo specialty shops located throughout the country. Then the oil return line is attached to the fitting. ENGINE HERE AT SONNY'S! Of course, you could always opt for a pair. Working with a specialist who understands your specific goals is the best approach for most turbocharger enthusiasts. Now let’s work through this step by step. Our first pull yielded a best of 375 hp and 505 ft-lb of torque. Using the accompanying compressor map, you can locate the 1.7 pressure ratio line and move across to the 36 lbs/min point. “With a turbocharger system, you also need to have a wastegate, or blowby valve, and an intercooler, which are both essential components to the operation of any well-engineered turbocharger system. As impressed as we were with the low-boost power, we came to see 1,000 hp and that is exactly what we saw after cranking up the boost to 15.4 psi. Standard Ford 289 and 302 small-blocks were factory-rated between 200 and 230 hp. The company also offers an intercooled 2003-2004 4.6L Cobra street turbo kit that is a direct replacement for the factory Eaton supercharger. The oil return line is hooked up, which is eventually connected to an AN fitting at the front of the oil pan using a 9⁄16-inch wrench. 24. Here’s the view a cockroach sees when this turbocharged beast hits the streets. “This kit also comes with its own fuel system, which includes a set of 42- lb/hr Bosch fuel injectors, a Ford Focus in-tank high-volume electric fuel pump, and a K&N-filtered Granatelli 90-mm MAF. You can also go on the Internet and find any number of competent turbo tuners by logging on to, First you have the Garrett Air Research “GT” Performance Distribution Network, which features a total of five national distributors for Garrett Air Research Turbochargers and Intercooler products. 524.3 cfm x 0.80 = 419.4 cfm. Bronco Edition 365 HP Dressed Long Blocks with Aluminum Heads. 6. The second is the air-to-air design, which is preferred by Ford turbo kit manufacturers like Hellion Power Systems, HP Performance, Pro Turbo, and Turbo Technology, Inc. One of the drawbacks with liquid-toair intercooler systems is that you need a coolant reservoir. 9. However, their latest effort, a 4.6L turbo kit for the 1996 to 2004 4.6L SOHC Mustang GT may be their crowning achievement. The intercooler exit pipe (which runs up to the throttle body) is installed using the provided stainless-steel band clamps, and is joined to a 21⁄2-inch silicone hose at the other end. Run with 1 ¾-inch, long-tube headers and tuned to perfection, the naturally aspirated 5.3L produced peak numbers of 503 hp at 6,600 rpm and 443 lb-ft of torque at 5,600 rpm. To locate the nearest Garrett GT Turbo retailer and/or a qualified Garrett GT Turbo installer, log on to www.turbobygarrett.com. Before making the power modifications, we disassembled and cleaned the LM7, honed the cylinders and decked the block. 23. Now follow along with us as we show you how to install one of these systems. The Hot Rod Series is what I would consider the best compromise between power and reliability. Debuting in the 2011 model year, the Coyote is a 5.0L, naturally aspirated V8 engine featuring a dual overhead cam (DOHC) design. Exhaust manifolds for turbocharger installations are often surprisingly compact – at least between the cylinder heads and the turbocharger(s).
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