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Ive seen an increase in familiarity of them especially on the LS engine side Greg Zucco, GZ Motorsports. All you have to do is bolt the stationary pivot point on the inside of the cylinder head. Its a straight path; valve cover to pump, and pump to catch can. Years ago, nobody knew much about vacuum pumps. 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. Advertising - 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. Contact Us - GZ Motorsports has everything you need to complete your vacuum pump installation, and its mostly made from billet. We wish more manufacturers would do this, as it appears to be very helpful. Composite Dreams: Making the Case for Carbon Fiber Connecting Rods, Valvetrain Maintenance Simplified With T&Ds Valve Spring Compressor, A Guide To Ford V8 Engine Block Casting Numbers, 1952-1996, 7 Things To Know Before Starting A New Engine For The First Time, Cummins New Hydrogen Combustion Engine Platform Takes On Diesels, SEMA 2021: Turbosmarts Straight-Gate50 Is Redefining Wastegates, SEMA 2021: King Bearings Talks Bi-Metal And Tri-Metal Differences, Choosing The Right Alternator And Starter For Bracket Racing. I have the same issue, we had to move the breather to the front of the covers to get them as far away from the rockers as possible but it still fills the catch can after 3 passes at the track. After seeing the vacuum pump in action I can only imagine how much oil is burnt by the motor. I didnt realize how much oil and fuel vapor there is in a motor untill I installed this Vacuum pump!When I took off my intake years ago for the Maggie I saw all of the oil in there and was suprised. About Us - 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. 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.. 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. 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. 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. I personally run the Sportsman pump on my daily-driven, 2001 Z06 and noticed an immediate change in acceleration with no other modifications Greg Zucco, GZ Motorsports. However, its important to note when using a standard tension ring package, typically, the horsepower increase wont be as drastic. Zucco recommends using a machinist square to position the crank pulley in perfect alignment with the pump pulley. More vacuum pump videos on Kimmys Garage YouTube! Bryan Neelen of Late Model Engines assembled the test mule 454 cubic inch LSx. The Sportsman Kit, which we used, features the smaller VP101A 22-cfm Sportsman pump, complete with -10 AN fittings and hose. I use higher quality materials, maintain tighter tolerances, and the hand fit final assembly assure this is the best pump on the market.. While it had the appearance of a big ticket race item, Greg Zucco of GZ Motorsports says it is. 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. For more information on the complete line of products from GZ Motorsports, check out their website. Spinning the pulley is the included 22.5-inch long Gilmer drive belt. 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. For what it cost i'd love to say yes, but no it didn't gain anything. Vacuum pumps work by creating negative airflow (vacuum) thereby pulling the air from the crankcase. Horsepower is usually lower from the pump because of the increased leakage as compared to the low tension ring package. I believe he also kept throwing belts, maybe a solid tensioner is what he needs. The GZ Motorsports VP104 Super Pro 33 CFM vacuum pump, crank mandrel, billet pulleys, catch can , and safety breather took an hour to properly install. 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. 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. 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. 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. 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. It is available as a 36-tooth, 4.5-inch diameter piece or with 46 teeth and a 5.5-inch diameter. Peak torque fell by 1 ft-lbs. All rights reserved. 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. The larger housing features improved sealing through tighter tolerances to aid in total flow performance and peak vacuum potential. Perhaps nowhere is this more helpful than in the case of engine accessories, as the ones that are being installed onto the car may often have different bracketry than the stock components. My car needs one of these. BTW where did you mount your vacuum check valve? GZ Motorsports manufactures and sells a variety of vacuum pumps, available individually and in complete kits for a wide range of applications. Before we knew it, it was time to get the LSx 454ci engine on the dyno for some testing. NHRA Reveals A/FX Exhibition Class. This article will go over the details of installing a vacuum pump on a BBC cylinder head. 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. I had them weld me in a baffle to redirect the air inlet to the vacuum side. What did you end up doing? We will safeguard your e-mail and only send content you request. An aluminum manually adjustable tensioner pulley mount is available as an option with either kit. Factory vacuum pumps in the 80s were designed and built to run maintenance-free for over a 100,000 miles. The consensus seemed to be that the AIR pump would not draw enough pressure, or stand up to the abuse. Update: The vacuum pump is installed and working. With drag racing engine development ever evolving; more cubic inches, more nitrous, and more boost; a better vacuum pump is needed to keep the crankcase in check. 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. 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 might find one with an electric water pump, carburetor, or a V-belt in place of the serpentine system. Terms of Service - The GZ Motorsports vacuum pump rests at the front of the Late Model Engines (LME)-built 454 cubic-inch LSx test engine. Now it can all be bolted together: inner retaining sleeve, crank pulley with key, outer retaining sleeve, and bolt-on retaining cap. Whew800 bucks. This item will get plumbed into the catch tank later, when GZMS finishes their 2 port catch can. 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. Worried About An Engine Meltdown And Pressurizing The Crankcase? 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. These are a few areas for potential leakage: valve cover gaskets, oil pan gasket, timing chain cover gasket, intake manifold gasket, and around the distributor hole. GZ Motorsports // LSx Sportsman Complete Vacuum Pump Kit. 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. Try to spread out the holes around the bracket to give it better contact with the motor plate for a more secure mount. They are rated by their airflow capacity measured in cubic-feet per minute (CFM) and are available in a variety of sizes. Orienting the pump properly is made easy with two available billet brackets; universal left head assembly and universal right head assembly. Lets get started. Archive - The Works // Late Model Engines-built LSx 454ci Dyno Mule. 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. Once a spot has been picked, clamp the bracket and vacuum pump to the motor plate so the holes can be transferred using a scribe (Hint: put some tape on the bracket so the clamp doesnt mar that nice billet surface). Now we arrive at the plumbing stage. The polished aluminum housing and AN fittings add some functional pizzazz to any engine bay. 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. I'm gonna pull the valvecover again and see what needs to be done. 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.). 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. LS1GTO.com is a forum community dedicated to the LS1 Pontiac GTO. Topping the cylinders is a pair of LME CNC-ported GM LSx LS7 heads of the six-bolt-per-cylinder variety. 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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. Kimmys Garage is now looking forward to partnering with you to help promote and sell your product line. 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. Your powerplant will enjoy increased ring seal, improved combustion, and less contamination of the intake charge. 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. Not only do they list the components used in each installation, some installations have multiple images and other information provided to give you a hand when it comes time to set up your own car. It 's cut to fit for proper belt alignment, locking the pulley and mandrel together tight. I'm currently installing a GZ Motorsports vacuum pump on the car. 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. We'll send you the most interesting LSX Magazine articles, news, car features, and videos every week. Some configurations will require spacers or washers for proper alignment. The slotted part of the mounting bracket should line up with the outer tapped hole of the cylinder head. These engines produce higher crankcase pressures and, as such, necessitate a larger pump or greater RPM from a smaller model. Is a vacuum pump right for your combination? 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. With all these impressive features in a large-displacement package, how did it fare on the dyno? So grab a seat and read on! Im going to tell you something you dont want to hear. One way to decrease blow-by and increase piston ring seal is to add an aftermarket vacuum pump. The unit necks down to an industry standard 1-inch diameter shaft to accommodate varying types of pulleys with an 1/8-inch keyway. We will safeguard your e-mail and only send content you request. The T6 aluminum Gilmer vacuum pump pulley is included with both kits. 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. If you are not creating enough vacuum, check for potential leaks. Racers with normal sliding vane vacuum pumps have to be skilled in the art of maintenance and cleaning. 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 ball and spring assembly will start to relieve crankcase pressure at 1 psi. Armed with the GZ Motorsports Sportsman Vacuum Pump Kit, it was time to get to work testing the effects of increased vacuum. Naturally aspirated engines feature some type of crankcase ventilation, whether by PCV valve (which circulates spent gases back into the intake charge) or just open breathers. A properly sized vacuum pump can net positive results in just about any engine. The gang at LME had the the new vacuum pump installed in no time. Imo 10 will make that engine happy. The valve and cap combination securely mounts and positively seals to the valve cover and allows for adjustments to the amount of vacuum. Each bracket comes with an assortment of holes to fit Small and Big Block Chevrolets, Small Block, Big Block, and FE Fords, Mopar, Pontiac, and Oldsmobile (plus Mitsubishi if thats your cup of tea). Put Down The Brake Cleaner This Pump Can Take The Heatand Oil. We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. If you have any further questions, call Aerospace Components at 727-347-9915 or email kimmysgarage@gmail.com! All rights reserved. The GZ Motorsports mandrel and billet pulleys are captured to each other with an aluminum sleeve and front bolt. 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. Whats The Reason Enthusiasts Cant Get, Yes I Am A Dinosaur, And Why I Feel Electric Cars, Dakota Digital Acquires W.I.D.E. Chucking a belt at 8,000 rpm would be bad news, so getting the alignment right on a custom style vacuum pump install is critical. 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. All of these benefits can improve your engines power output. 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. bumping this up as im thinking about picking one up. 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. Build your own custom newsletter with the content you love from LSX Magazine, directly to your inbox, absolutely FREE! 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. The former Associate Editor of Chevy High Performance, joins publication Chevy Hardcore, Sean is a true blue Bow Tie guy and a core do-it-yourself technician. The patent pending vacuum pump design incorporates a crankshaft and hub assembly, carbon fiber vanes, and Rulon oil wipers. With my motor I do see more blow by than most because of low tension rings and the sheer size of it. 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With a 33 CFM at 5,000 rpm pump speed, the VP104 Super Pro Vacuum Pump means business, moving enough air to keep an optimum level of vacuum in the most demanding crankcases in drag racing today. 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. Once the lower pulley position has been ascertained, take a measurement using a dial caliper and record the length. This method doesnt allow the use of a vacuum pump to control crank case pressure. Check alignment of the V-belt. Multiple-piece crank mandrel assemblies rely on a very long bolt to hold everything together, and take the load of all the accessories being driven. i think they recommend a non-self adjusting tensioner when using the pump, [SIGPIC]http://i161.photobucket.com/albums/t214/06apsttgoat/newsig.jpg[/SIGPIC]. With an optional vacuum control regulator integrated right into the case for better packaging and this pump becomes even easier to install. 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. Do Not Sell My Personal Information -, By logging into your account, you agree to our. FACT: Cobras Had LS Engines Installed At The Factory! With that, the mechanical part of the install is now complete. Both kits will net you an aluminum crankcase breather tank, complete with drain plug and open element breather. 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. We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. 2022 Power Automedia. Build your own custom newsletter with the content you love from Dragzine, directly to your inbox, absolutely FREE! Once the outside of the bolt pattern is marked, center punch the holes where they need to be drilled. Start your engine. Also in the form-meets-function category is the Gilmer vacuum pump pulley that is included with both kits. His latest product, the VP104 Super Pro, takes his brand of vacuum control products to the highest levels of racing. 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. On average, there was an increase of 6hp although average torque fell off by 2 ft-lbs. 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. Not a bad time investment for better oil control, a more stable ring package, and more horsepower. Weve run 12 to 14 inches before with out problems 10 inches is safe . 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. The air chamber design makes the pump more efficient because the entire pump is working for you..

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