As you can see, there are mounting holes on all BBC cylinder heads. 2022 Power Automedia. The valve and cap combination securely mounts and positively seals to the valve cover and allows for adjustments to the amount of vacuum. Naturally-aspirated, supercharged, non-stock accessories its all covered here. I'm gonna pull the valvecover again and see what needs to be done. Proper sealing of the valve covers is essential to the function of the vacuum pump. His latest product, the VP104 Super Pro, takes his brand of vacuum control products to the highest levels of racing. Jason draws on over 15 years of experience in the automotive publishing industry, and collaborates with many of the industry's movers and shakers to create compelling technical articles and high-quality race coverage. Build your own custom newsletter with the content you love from EngineLabs, directly to your inbox, absolutely FREE! Well be putting this vacuum pump to the test on a methanol-fueled 412 cubic inch small block Chevrolet with a pair of twin S400SX 72mm Borg Warner Airwerks turbochargers. The GZ Motorsports catch can has a double baffle to keep the oil in the can and the exhaust gasses moving to atmosphere. We'll send you the most interesting LSX Magazine articles, news, car features, and videos every week. Greg says that for the maximum benefit to be realized, a looser piston ring package is optimum; however, the use of a vacuum pump doesnt have to be factored into the initial build. Summing It All Up // What Does It All Mean? This item will get plumbed into the catch tank later, when GZMS finishes their 2 port catch can. GZ Motorsports manufactures and sells a variety of vacuum pumps, available individually and in complete kits for a wide range of applications. This mandrel is for a small block Chevrolet, matching the factory dimensions of the three-bolt harmonic balancer; a dab of Loctite on each fastener and bolt the mandrel on in under a minute. Is a vacuum pump right for your combination? Easy adjustments can be made by simply turning a knob on the valve. Cookie Policy - The compact design of the Sportsman and Super Pro pumps will add a mere 6 and 6.5 pounds, respectively, to the front of your LS-based engine. This crankshaft and hub configuration separates GZ Motorsports from their competitors by keeping the vanes from contacting and scraping the outer case, which reduces friction, lowers maintenance, and improves longevity. Check the vacuum that the pump is creating. Weve run 12 to 14 inches before with out problems 10 inches is safe . The gang at LME had the the new vacuum pump installed in no time. All rights reserved. We'll send you the most interesting Dragzine articles, news, car features, and videos every week. FACT: Cobras Had LS Engines Installed At The Factory! Blow-by occurs when the exhaust gases created by combustion leak past the piston rings and make their way into the crankcase creating a positive pressure. Break open a VP104 pump and you'll see why its at the top of its class. The bottom line question one must ask is, Do I really want to add more power to my engine combination? If you read this far, the answer is obvious. You then have to cut the -12 AN lines to the correct lengths and hook them up to their respective ports on the vacuum pump (intake and exhaust). Topping the cylinders is a pair of LME CNC-ported GM LSx LS7 heads of the six-bolt-per-cylinder variety. Contact Us - A FAST intake manifold straddles the top of the assembly and hides the lobes of a Cam Motion hydraulic roller camshaft that opens the valves 0.650-inch for 247 and 262 degrees of crank rotation on the intake and exhaust, respectively. We will safeguard your e-mail and only send content you request. Your powerplant will enjoy increased ring seal, improved combustion, and less contamination of the intake charge. Once the outside of the bolt pattern is marked, center punch the holes where they need to be drilled. While it had the appearance of a big ticket race item, Greg Zucco of GZ Motorsports says it is. Advertising - On the opposite front valve cover, you will have to install a relief valve and adjust it accordingly to how much vacuum you want to pull. They exist to save your butt when you need them, and do not effect vacuum potential when all is well. Peak torque fell by 1 ft-lbs. These racers have to clean out the inside of the pump with a chemical agent, usually by spraying brake cleaner in the suction side while spinning the pump, with a frequency of every race weekend down or sometimes even after every run! Not a bad time investment for better oil control, a more stable ring package, and more horsepower. '06 Impulse Blue Metallic/Black M6 - Sold, '05 Yellowjacket/Black A4 converted to M6 - Sold, The Fora platform includes forum software by XenForo, VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. By inherent design of a sliding vane vacuum pump, oil and particle buildup keeps the vanes from moving freely and sealing properly; this reduces available suction, flow, and efficiency. With an optional vacuum control regulator integrated right into the case for better packaging and this pump becomes even easier to install. With that, the mechanical part of the install is now complete. We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. An aluminum manually adjustable tensioner pulley mount is available as an option with either kit. Use an angled scribe to mark the future bolt holes that will need to be drilled in the motor plate for mounting. Armed with the GZ Motorsports Sportsman Vacuum Pump Kit, it was time to get to work testing the effects of increased vacuum. Driving the VP104 Super Pro vacuum pump is a breeze with a billet aluminum crank mandrel, offered for the same engine families listed above. These engines produce higher crankcase pressures and, as such, necessitate a larger pump or greater RPM from a smaller model. No matter how many times you call a companys tech line and ask how to install a particular product that youve purchased, having a set of pictures detailing what it should look like when all completed is worth more than anything they can tell you over a long-distance phone call. This reduction in cylinder pressure allows the engine (and your wallet) to enjoy gulping 93 octane gas from the corner Pump N Go. You have to buy the proper length V-belt to complete the installation and adjust the vacuum pump tension and tighten up the mounting bracket once completed. For the maximum benefit to be realized, a looser piston ring package is optimum; however, the use of a vacuum pump doesnt have to be factored into the initial build. More issues: I put a baffle in the valvecover to reduce the amount of oil drawn into the catch can and its not working as planned. This type of ring produces less friction on the cylinder walls and, as with any part of your performance machine, less friction equals more power. Loosen up the pump mounting bolts and slide the belt on. 2022 Power Automedia. A twin turbo alcohol injected small-block is not the normal place to find a vacuum pump, even though its the perfect application for a VP104 Super Pro vacuum pump. I modeled my design after a factory-style pump, because they work. It doesnt get much easier, the kit comes with everything needed for installation (minus the tools). A 4.185-inch bore and 4.125-inch stroke comprise the large displacement while an octet of Wiseco pistons top the connecting rods and help establish the 12:1 compression ratio. We had the opportunity to phone into Zucco who immediately shared with us the increasing popularity of the pumps and the benefits of installing a vacuum pump on the LS series of engine. Nice work; you'd think there would be more of these installed on LS motors with gains like that?? Privacy Statement - Getting the crank pulley to pump pulley alignment just right is a little more complicated. I use higher quality materials, maintain tighter tolerances, and the hand fit final assembly ensures that this is the best pump on the market.. Using quality gaskets, trimmed to fit, with copious amount of sealant is the way to go. Both kits are similar in contents, sans the larger pump and the hose and fitting size of the Super Pro version. The hardest part of a vacuum pump installation is figuring out the best place to put it. I bet I could convert an old smog pump to work for this application. That has been discussed, but not tried that I know of. Essential to the proper function of the vacuum pump is the sealing of the valve covers. Zucco recommends this upgrade for applications that will see 7,000 RPM or greater. Also, you will have to cut a hole in the front of your valve cover and attach the aluminum valve cover bung to attach the suction line of the vacuum pump. The consensus seemed to be that the AIR pump would not draw enough pressure, or stand up to the abuse. The Super Pro Kit is suited for higher horsepower and power adder applications. Care was taken to minimize sharp bends in the hose and tight turns through fittings. Inside the pumps, both models share carbon fiber vanes and Rulon (a plastic material with a low coefficient of friction and high heat tolerance) wipers. All of these benefits can improve your engines power output. GZ Motorsports provides their VCV103A adjustable vacuum-relief valve and oil-fill cap with each complete package. This design allows the pump to pull significant amounts of combustion gases out of the crankcase. If you have any further questions, call Aerospace Components at 727-347-9915 or email kimmysgarage@gmail.com! I figured I would post progress and post some pictures of the final product. GZ Motorsports responded with a larger, high flowing, VP104 Super Pro 33 CFM Vacuum Pump. It bolts on with no modifications to the factory GM accessories or brackets, making it suitable for installation by the home mechanic. Mounting the vacuum pump with the supplied bracket is an easy task, but take care to place in a spot that doesn't obstruct any plumbing, exhaust, belts, or other accessories. The GZ Motorsports LSx Sportsman Vacuum Pump Kit is designed for the popular LS Series late-model Chevrolet engine and is specifically designed to fit perfectly in Chevy, Cadillac, GM Truck and Pontiac applications with a belt tensioner. Anything over 1 psi and the engine isn't happy, so its best to give the vacuum pump a helping hand and route some of those gasses straight to the puke tank. Finish by bolting on the vacuum pump mounting plate, using quality fasteners, washers, and locking nuts. We will safeguard your e-mail and only send content you request. Requiring the highest level of components to survive in the upper echelon of drag racing, the VP104 Super Pro 33 CFM Vacuum Pump is built upon GZ Motorsports new tighter tolerance die-cast aluminum housing. Lets get started. Thats okay, a band saw (or hack saw) and very careful grinding can produce satisfactory results. Orienting the pump properly is made easy with two available billet brackets; universal left head assembly and universal right head assembly. I can put it back together tomorrow and drive it. With the vacuum pump installed and the big-inch terror ready to make another dyno pass, the proverbial trigger was pulled and the numbers recorded. bumping this up as im thinking about picking one up. The air chamber design makes the pump more efficient because the entire pump is working for you.. Theres a lot going on in the engine bay of most race cars, things to watch out for, such as the water pump and cooling hoses, fuel lines and regulators, the steering shaft, frame rails, alternators, and power adders like turbochargers. An industry-unique crankshaft system made up of a billet steel hub, carbon fiber vanes (with some proprietary chemicals that make them yellow and more durable), and Rulon oil wipers keep this pump sucking efficiently for more than 500 hours between maintenance intervals. (pics to come). We cant wait to get this car on the race track and get this GZ Motorsports vacuum pump spinning and pulling some negative pressure against our 412-inch twin turbo methanol gulping small-block. Which pump is right for you depends on your engine combination. To finish off the mandrel, a full line of V-belt or cog belt polished billet aluminum pulleys are available to match your specific application. 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For applications without a serpentine belt tensioner, like cars with an electric water pump, please make sure to get in contact with GZ Motorsports as custom setups are also available. A good secondary check to make sure everything is correct is to lay a machinist ruler across the face of the pump pulley and double check that both marks for the crank pulley are at the same position. Bigger vanes, a better housing, and more CFM; giving this pump the potential to match any performance racing engine. We will safeguard your e-mail and only send content you request. Come discuss mods, horsepower, engine specs and more! A smaller, naturally aspirated engine will effectively utilize a smaller pump than a larger displacement engine or one that employs power adders such as nitrous, superchargers, or turbo systems. These innovative high-flow check ball breathers will keep the vacuum from sucking in outside air under normal operating conditions. Whats The Reason Enthusiasts Cant Get, Yes I Am A Dinosaur, And Why I Feel Electric Cars, Dakota Digital Acquires W.I.D.E. GZ Motorsports has everything you need to complete your vacuum pump installation, and its mostly made from billet. A vacuum pump is so much nicer than a catch can,I should have done it a long time ago. JavaScript is disabled. The patent pending vacuum pump design incorporates a crankshaft and hub assembly, carbon fiber vanes, and Rulon oil wipers. For a better experience, please enable JavaScript in your browser before proceeding. If youre in the planning stages of your engine build, a vacuum pump allows for the use of looser, or low-tension, piston rings. The lobe separation angle of the hydraulic roller cam is ground at a wide 114 degrees, effectively broadening the power band while bleeding off or reducing cylinder pressure. Constructed of 6061 T6 aluminum and available with 36 or 46 teeth, the pulley diameter measures 4.5 or 5.5 inches, depending on the tooth count. It vents air directly to the pump without drawing it through the engine, unlike the aforementioned PCV valve system that pulls the combustion gases back into the intake stream. Adjust the V-belt pulley on the mandrill drive to line up with the vacuum pump pulley. Zucco recommends using a machinist square to position the crank pulley in perfect alignment with the pump pulley. Any properly-built engine can benefit from the addition of a vacuum pump, but the results will vary depending on the amount of blow-by it generates and any air leaks that may be present. Adjust accordingly. Then install the breather tank in a location that suits your engine compartment or chassis. It is available as a 36-tooth, 4.5-inch diameter piece or with 46 teeth and a 5.5-inch diameter. My car needs one of these. Back to back testing at the track showed no gains in MPH or ET. This particular bracket from GZ uses 3/8-inch bolts, so a 3/8 drill bit will be required to open up the motor plate. The ball and spring assembly will start to relieve crankcase pressure at 1 psi. SEMA 2021: Woolf Aircraft Has Everything For Custom Plumbing, SEMA 2021: Hamburgers Superchargers Stage II Kit For LT-1 Camaros, SEMA 2021: Turbosmarts Straight-Gate50 Is Redefining Wastegates, 36- or 46-tooth Gilmer vacuum pump pulley, -10 Fragola AN fittings for one valve cover, VCV103A vacuum control valve oil fill cap, Stud bolt, brace bracket, spacers and mounting bolts, Optional T100 tensioner mount for high RPM applications. We'll send you raw engine tech articles, news, features, and videos every week from EngineLabs. Before we knew it, it was time to get the LSx 454ci engine on the dyno for some testing. Horsepower is usually lower from the pump because of the increased leakage as compared to the low tension ring package. So grab a seat and read on! The best vacuum pump will not keep negative crank case pressure in your race engine, if said engine is sealed up like well-aged swiss cheese. With the negative airflow created by the vacuum pump pulling the positive pressure from the crankcase, the big-cuber screamed away to 712 horsepower at 6,900 RPM, an increase of 7 horsepower. One way to decrease blow-by and increase piston ring seal is to add an aftermarket vacuum pump. and didnt reach its full potential until 200 RPM later at 5,600 to 577. no just max setting in 10, and no problem what so ever, yes i agree. but like i mention before my motor is extremely loose , more loose then regular NA motors so it was more need for a vacuum pump for me, Location: Port Saint Lucie FLORIDA & HONDURAS, I'll be installing mine in November and have it set at 12, The following errors occurred with your submission, CorvetteForum - Chevrolet Corvette Forum Discussion, C5 Corvette Turbochargers, Superchargers, Centrifugal, Twin Screw & Roots Blowers, Twin Turbo Kits, Intercoolers, Wet & Dry Nitrous Injection, Meth, In loving memory of lost CorvetteForum Brothers and Sisters, http://forums.corvetteforum.com/c5-fac-thread.html. On average, there was an increase of 6hp although average torque fell off by 2 ft-lbs. Check alignment of the V-belt. The retaining sleeve was machined to a total length 1.960-inches, which is perfect belt alignment according to the machinist square and ruler. After seeing the vacuum pump in action I can only imagine how much oil is burnt by the motor. NHRA Pro Mod racer Mike Janis relies on the VP104 Super Pro Vacuum Pump to control crankcase pressure on his supercharged alcohol-burning Camaro, and not much could be harder to control than a 3,000 horsepower engine and the demands it creates. Any properly-built engine can benefit from the addition of a vacuum pump, but the results will vary depending on the amount of blow by it generates and any air leaks that may be present. It could be better but I didnt put alot of time into it. Follow along as we install GZ Motorsports complete vacuum control system. The unit necks down to an industry standard 1-inch diameter shaft to accommodate varying types of pulleys with an 1/8-inch keyway. Thanks Frank. my friend had one, and it kept hitting his optima redtop, caused a nice groove in the top cover of the battery. A time saver was the belt being the right length for the chosen mounting location and the catch can was previously mounted with the pre-existing valve cover breather system. Now, before you go crazy looking for plumes of billowing smoke from your valve cover breathers or planning your next tear down and rebuild, take comfort in knowing that every engine has blow-by to some degree. The Works // Late Model Engines-built LSx 454ci Dyno Mule. GZ Motorsports created a winner with the VP104 Super Pro 33 CFM Vacuum Pump. Contact Brand, 9 Forms of Friction: Raybestos Clutch Plates Explained. Peak power RPM remained at 6,900. The fully polished billet pulleys are really nice -- make it a one-piece fully machined billet cog pulley and now you have made something that performs just as good as it looks. When moving 33 CFM through a -inch inside diameter fitting, you need some room for air to collect so the whole vane is pumping air, not just the portioned centered over the inlet hole, Zucco explains. Now we arrive at the plumbing stage. For the drag race engine that is purpose built for pulling alot of vacuum i would agree. A little oil is good and needed by the pump but I'm getting about a cup after 1hr of driving and thats to much. We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. Whew800 bucks. NHRA Reveals A/FX Exhibition Class. The GZ Motorsports mandrel and billet pulleys are captured to each other with an aluminum sleeve and front bolt. It includes GZs VP104 33-cfm vacuum pump, and utilizes -12AN fittings and hose. The GZ Motorsports kits come complete with Fragola AN fittings for one valve cover (-12AN for the Super Pro series and -10AN for the Sportsman line). Racers with normal sliding vane vacuum pumps have to be skilled in the art of maintenance and cleaning. The newly developed burn down safety valve cover breathers mount right through the valve cover or intake tray, getting the exhaust gasses from an engine meltdown safely into the puke tank, keeping the oil going to a safe place and not under the tires. I use higher quality materials, maintain tighter tolerances, and the hand fit final assembly assure this is the best pump on the market.. Both kits will net you an aluminum crankcase breather tank, complete with drain plug and open element breather.