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. 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. Easy adjustments can be made by simply turning a knob on the valve. I'm gonna pull the valvecover again and see what needs to be done. The unit necks down to an industry standard 1-inch diameter shaft to accommodate varying types of pulleys with an 1/8-inch keyway. Ive seen an increase in familiarity of them especially on the LS engine side Zucco is so sure of his pumps, hes installed one on his personal vehicle and explained, I personally run the Sportsman pump on my daily-driven, 2001 Z06 and noticed an immediate change in acceleration with no other modifications. For GMs venerable LS series of engines, they offer two options the Super Pro kit and the Sportsman kit. A properly sized vacuum pump can net positive results in just about any engine. The ball and spring assembly will start to relieve crankcase pressure at 1 psi. I had them weld me in a baffle to redirect the air inlet to the vacuum side. The Works // Late Model Engines-built LSx 454ci Dyno Mule. 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. 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. Without a method in place to vent the crankcase, youd find yourself wiping your garage floor of spilled oil quite frequently. Not a bad time investment for better oil control, a more stable ring package, and more horsepower. Armed with the GZ Motorsports Sportsman Vacuum Pump Kit, it was time to get to work testing the effects of increased vacuum. His latest product, the VP104 Super Pro, takes his brand of vacuum control products to the highest levels of racing. With a full array of data logging sensors running into a Holley EFI Dominator Box, well be able to keep tabs on the engines health and tune up. Then install the breather tank in a location that suits your engine compartment or chassis. Zucco explains, The entire vacuum control system needs to be efficient, not just the pump; high flowing lines that dont constrict under vacuum, big enough lines to move air to and from the pump, and a baffled catch tank that can breathe without spitting oil out the filter.. 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. With an optional vacuum control regulator integrated right into the case for better packaging and this pump becomes even easier to install. Kimmys Garage is now looking forward to partnering with you to help promote and sell your product line. Years ago, nobody knew much about vacuum pumps. Your engine has blow-by. Some racers say GZ pumps are just a factory smog pump, and Zucco explains why thats almost true and actually a good thing. They are rated by their airflow capacity measured in cubic-feet per minute (CFM) and are available in a variety of sizes. A vacuum pump is so much nicer than a catch can,I should have done it a long time ago. For the drag race engine that is purpose built for pulling alot of vacuum i would agree. The hardest part of a vacuum pump installation is figuring out the best place to put it. Check the vacuum that the pump is creating. 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. The GZ Motorsports catch can has a double baffle to keep the oil in the can and the exhaust gasses moving to atmosphere. It doesnt get much easier, the kit comes with everything needed for installation (minus the tools). It 's cut to fit for proper belt alignment, locking the pulley and mandrel together tight. For a better experience, please enable JavaScript in your browser before proceeding. With all these impressive features in a large-displacement package, how did it fare on the dyno? Five feet of braided stainless steel hose is also included and is sized accordingly per kit. If it doesn't run a "mouse motor" or a big rat between fenders, Sean ain't interested. In the case of GZ Motorsports and their wide array of vacuum pumps, alternators, and ancillary equipment, its helpful to go and check out their sample installations page on their website, where all sorts of different engine combinations are displayed in full color so that you can get an idea of how your completed installation should appear. High flow vacuum pumps require a well baffled catch can to separate the exhaust gasses from the oil and expel only the gasses through the breather. All of these benefits can improve your engines power output. BTW where did you mount your vacuum check valve? GZ Motorsports crank mandrels allow the racer to drive not only a vacuum pump, but other accessories too; mechanical fuel pumps, alternators, and external oil pumps can be fit to the front of the engine. Orienting the pump properly is made easy with two available billet brackets; universal left head assembly and universal right head assembly. With that, the mechanical part of the install is now complete. Whew800 bucks. 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. 2022 Power Automedia. This length will need to be cut out of the supplied retaining sleeve stock to help keep the crank pulley in the proper position. Driving the VP104 Super Pro vacuum pump is a breeze with a billet aluminum crank mandrel, offered for the same engine families listed above. The larger housing features improved sealing through tighter tolerances to aid in total flow performance and peak vacuum potential. The vacuum pump can be installed on either side of the engine. Use an angled scribe to mark the future bolt holes that will need to be drilled in the motor plate for mounting. All rights reserved. Back to back testing at the track showed no gains in MPH or ET. 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. yeah, if you just wanted some movement, but not actual vacuum, it would work. Cookie Policy - 2022 Power Automedia. NHRA Reveals A/FX Exhibition Class. GZ Motorsports provides their VCV103A adjustable vacuum-relief valve and oil-fill cap with each complete package. While it had the appearance of a big ticket race item, Greg Zucco of GZ Motorsports says it is. Thats okay, a band saw (or hack saw) and very careful grinding can produce satisfactory results. The GZ Motorsports Sportsman Vacuum Pump kit quickly attaches with no modifications to the engine or engine accessories required for installation. JavaScript is disabled. Watch for an NHRA Pro Mod or Top Alcohol-legal version to released soon. We'll send you the most interesting LSX Magazine articles, news, car features, and videos every week. Left or right, it does not matter. It is available as a 36-tooth, 4.5-inch diameter piece or with 46 teeth and a 5.5-inch diameter. 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. Another key feature of the GZ Motorsports vacuum pumps is the entry and exit chambers, which help smooth the incoming and outgoing air to promote efficiency and reduce suction pulsing. Measure twice, cut once. Nascar pulls over 20 inches . '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. Both feature a polished aluminum housing, so for those of you that like to show your ride, youll have something new to shine when you pop the hood. 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. Customizable packages can be assembled so anyone with an LS-based combination can enjoy the benefits of an adjustable vacuum pump. We wish more manufacturers would do this, as it appears to be very helpful. Steel vs Titanium Valve Spring Retainers, Which Do You Need? With the popularity of the LS-series, GMs latest small-block is making its way to the engine bays of muscle cars, classics, and alternative vehicle brands (read: Mustang hybrids, etc.). We'll send you raw engine tech articles, news, features, and videos every week from EngineLabs. These innovative high-flow check ball breathers will keep the vacuum from sucking in outside air under normal operating conditions. Advertising - If you have any further questions, call Aerospace Components at 727-347-9915 or email kimmysgarage@gmail.com! 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. 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. The GZ Motorsports mandrel and billet pulleys are captured to each other with an aluminum sleeve and front bolt. Build your own custom newsletter with the content you love from EngineLabs, directly to your inbox, absolutely FREE! With my motor I do see more blow by than most because of low tension rings and the sheer size of it. The polished aluminum housing and AN fittings add some functional pizzazz to any engine bay. i think they recommend a non-self adjusting tensioner when using the pump, [SIGPIC]http://i161.photobucket.com/albums/t214/06apsttgoat/newsig.jpg[/SIGPIC]. 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. Make sure that the pump is aligned equally with spacers and/or washers as shown in the main pivot bolt. This design allows the pump to pull significant amounts of combustion gases out of the crankcase. Using quality gaskets, trimmed to fit, with copious amount of sealant is the way to go. 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. 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. 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. 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. I believe he also kept throwing belts, maybe a solid tensioner is what he needs. All different types of installs are shown, from small- and big-block Chevrolet to LS engines to small- and big-block Ford, Pontiac, along with small- and big-block Mopar. The patent pending vacuum pump design incorporates a crankshaft and hub assembly, carbon fiber vanes, and Rulon oil wipers. Getting the crank pulley to pump pulley alignment just right is a little more complicated. Through-drill the three holes scribed in the motor plate using a file or burr whip to clean the edges of the freshly drilled holes so there are no remaining burrs or raised edges. 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. Its been said that a picture is worth a thousand words, and nowhere is that more the case than when modifying a vehicle for performance use. It could be better but I didnt put alot of time into it. my friend had one, and it kept hitting his optima redtop, caused a nice groove in the top cover of the battery. My car needs one of these. 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. 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. So we contacted Greg Zucco the GZ in GZ Motorsports, to checkout one his companys LSx-specific Sportsman Series Vacuum Pump kits for a before-and-after dyno comparison. 2022 Power Automedia. 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. 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. All rights reserved. Adjust the V-belt pulley on the mandrill drive to line up with the vacuum pump pulley. After seeing the vacuum pump in action I can only imagine how much oil is burnt by the motor. We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. It bolts on with no modifications to the factory GM accessories or brackets, making it suitable for installation by the home mechanic. Lift a head or burn a hole in a piston and all those exhaust gasses now have a designated path out of the engine and into the puke tank. 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. Ive seen an increase in familiarity of them especially on the LS engine side Greg Zucco, GZ Motorsports. GZ Vacuum Pumps // Super Pro Kit & Sportsman Kit. How Viscous-Style Dampers Deal With Extreme, Steel vs Titanium Valve Spring Retainers, Which Do You, Composite Dreams: Making the Case for Carbon Fiber Connecting, The Dangers of Vaping: Why Every Build Needs Earls Vapor, Holley Terminator EFI X ECU Packs Both Value And Tuning, Snow Performance Offers New Billet Fuel Rail Kit for Fast, Big And Tall: Chevys RS-X / ZZ632 Big-Block Cylinder Heads Are, Ask The Expert: We Want Your Questions For Canton Racing, EngineLabs Tool Of The Month: Total Seal Ring, The Answers: DeatschWerks Responses To Your Fuel System, Your Questions Answered By The Experts At Ferrea Racing, EngineLabs Tool Of The Month: Summit Piston Ring Squaring, EngineLabs Tool Of The Month Rimac Big Blue Valvespring, HOLY SHIP! All rights reserved. The retaining sleeve was machined to a total length 1.960-inches, which is perfect belt alignment according to the machinist square and ruler. 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. This article will go over the details of installing a vacuum pump on a BBC cylinder head. Vacuum pumps work by creating negative airflow (vacuum) thereby pulling the air from the crankcase. 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. Finish by bolting on the vacuum pump mounting plate, using quality fasteners, washers, and locking nuts. 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. 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. Try to spread out the holes around the bracket to give it better contact with the motor plate for a more secure mount. Break open a VP104 pump and you'll see why its at the top of its class. Do Not Sell My Personal Information -, By logging into your account, you agree to our. GZ machined the cog teeth right into the face of the pulley, negating the need for front and back retaining plates to keep the belt on at high rpm. Whats The Reason Enthusiasts Cant Get, Yes I Am A Dinosaur, And Why I Feel Electric Cars, Dakota Digital Acquires W.I.D.E. @ 10 inches your engine will be happy and there wont be any chance of pulling oil from wrist pins. We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. We will safeguard your e-mail and only send content you request. Whats The Reason Enthusiasts Cant Get, Quicksilvers Crate Engine Program: Past, Present, And The, ED-OP: Is The Evolution Of Building Horsepower A Good, PRI 2021: SPAL Explains Why Brushless Fans, PRI 2021: Engine Pro Debuts New LS MLS Gaskets, Mopar Windage, PRI 2021: EngineLabs Supercharged LS Engine, SEMA 2021: Isky Racing Cams Drops New Solid Roller Bushing, SEMA 2021: Edelbrocks New Carb Is The Most High-Tech 4150, SEMA 2021: Cometic Introduces Spring Energized MLS Head, High-Performance Racing Fasteners: How ARP Fasteners Are, Engine Pulleys Old-School Tradition Meets New-School, Brotherhood Built: Behind The Scenes At Firepunk, Ford vs Chevy Comparison Size, Weight, and HP Per, Video: How To Install COMP Cams LS Rocker Arm Trunion Upgrade, How Viscous-Style Dampers Deal With Extreme Temperatures. 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. 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. As we mentioned, the smaller of the two will spin the pump faster and is better suited to lower RPM applications than its larger sibling. The gang at LME had the the new vacuum pump installed in no time. The Sportsman Kit, which we used, features the smaller VP101A 22-cfm Sportsman pump, complete with -10 AN fittings and hose. Im going to tell you something you dont want to hear. Once the outside of the bolt pattern is marked, center punch the holes where they need to be drilled. Weve gotten our hands on one of these trick pumps from GZ, and well be taking you not only for a guided tour through all of the features it brings to the table, but well also walk you step-by-step through the installation and plumbing process on a small block Chevrolet race motor. On average, there was an increase of 6hp although average torque fell off by 2 ft-lbs. The first step is mounting the pump and finding room. FACT: Cobras Had LS Engines Installed At The Factory! 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. 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. The slotted part of the mounting bracket should line up with the outer tapped hole of the cylinder head. Privacy Statement - About Us - Spinning the pulley is the included 22.5-inch long Gilmer drive belt. A stout performer, this engine combination produced gobs of power in a streetable powerband and on 93-octane pump fuel. We wanted to put a vacuum pump to the test. We re-used the existing -12 black nylon lines and aluminum hose ends from the previous valve cover breather setup. Essential to the proper function of the vacuum pump is the sealing of the valve covers. Now it can all be bolted together: inner retaining sleeve, crank pulley with key, outer retaining sleeve, and bolt-on retaining cap. Topping the cylinders is a pair of LME CNC-ported GM LSx LS7 heads of the six-bolt-per-cylinder variety. Care was taken to minimize sharp bends in the hose and tight turns through fittings. 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. 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. More vacuum pump videos on Kimmys Garage YouTube! 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!

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