Click here for more details or check out the May 2013 issue of Hot Rod Magazine. We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. The Pro Series featured 4340 steel construction, precision tolerances and plasma-gas nitrite heat treating. Dyers Blowers is one of the leading manufacturers of street strip superchargers. 6 month limited warranty when properly maintained. Damaged component charges typically result when someone has damaged components by improper disassembly or kept the supercharger in service to the point of failure. Build your own custom newsletter with the content you love from Street Muscle, directly to your inbox, absolutely FREE! $463.95 - $770.95 Holley, Weiand or B&M 192/250 Bearing Plate Gasket. The entire rotating assembly was precision (internally) balanced using a neutral Rattler damper from TCI. In this “How It’s Made” video we see a dude assemble a brandy new 6-71 blower on his workbench. Weiand 90636 Weiand Powercharger Upper Pulley - 6-Rib, 2.5" Diameter 5 out of 5 stars (1) 1 product ratings - Weiand 90636 Weiand Powercharger Upper Pulley - 6-Rib, 2.5" Diameter Despite what the math predicts, there are a number of factors working against the theoretical boosted power output. The boost supplied by the 8-71 increased the peak power output from 651 hp to 898 hp and torque from 579 lbs. Though the supercharger delivers more additional power than required to drive it, the parasitic losses associated with driving the supercharger reduce the potential power output. operation. The 6-71 Supercharger Kit Plus includes: The contents of a 6-71 Street Supercharger Kit Weiand Linkage Kit Two Holley 600cfm Supercharger Carburetors Holley Throttle Return Spring Kit Mr. Gasket Hilborn Scoop Note: Kits do not allow enough clearance to fit a GM HEI distributor. Weiand P/S Bearing & Seal Kit [#9013] quantity ... Everything needed to replace your worn down bearing, seals, and gaskets for your 142, 177, and 256 Weiand Superchargers. In reality, you won’t even get that much because this equation assumes a supercharger that operates at 100% efficiency (an impossibility). ft. of torque at 4,800 rpm. Superchargers are assigned an estimate number after they arrive. But there were a few things to do before sending it off to the polisher. 125 Posts . First come, first served- no RMA or Pre-approvals. Please mark your package as Temporary Import for Repair. We ordered our big-block heads with 121cc combustion chambers to produce a static compression ratio of just under 10.0:1. No charge to process return customs paperwork. Luckily for blower enthusiasts, the inherent design of the Weiand supercharger already included a form of intercooling. When combined with a realistic boost level (we ran under seven psi), the combination was very safe and efficient. Holley / Weiand / B&M / Mercruiser Blower Rebuilds. © 2017 Power Automedia. STEP 9 The WEIAND Supercharger intake manifold should be thoroughly washed prior to installation. Unfortunately for us enthusiasts, heat is a natural byproduct of compression. Weiand Superchargers are Roots blowers), centrifugal, and ... (Note that throughout this tech manual the terms “supercharger” and “blower” are used interchangeably since they mean exactly the same thing.) An example might help better illustrate the difficulty we have with the so-called power/boost formula. Has anybody used their 8-71 sbc superchargers? These instructions cover the following Weiand Supercharger kits: Application Weiand Supercharger Kit Sizes Small Block Chevy 142 & 144 Big Block Chevy 174 There are some important differences between these kits. If a unit cannot be repaired, there is no charge. To do so, we installed an Edelbrock 454R intake, Holley 950 HP carburetor and MSD ignition. After all, shouldn’t doubling the atmospheric pressure also double the power output? The first dual plane, 180º intake came from Weiand in 1965, known as the "Colt" and in 1968 Weiand introduced the "Hi-Ram Manifold" and its patented D-port technology. It does not cover damage from improper maintenance, exceeding manufacturer’s maximum RPM, damaged to rotor timing from engine detonation, continued use when making noise, shipping, or the labor to remove/install it on the vehicle. Power & Performance News is the source for news, tech and products that help you get more performance from your vehicle. Repairs are not conducted without full approval. The AFR BBC heads also featured reinforced rocker stud bosses, rolled valve angles (2 degrees) to improve flow characteristics and an exclusive combustion chamber design. All consumable parts are replaced with OEM or higher quality name brand parts. Find Weiand 93171 Weiand Dual Holley Fuel Line Kits and get Free Shipping on Orders Over $99 at Summit Racing! If you would like to know when the item arrives at JBP, please use tracking. The graph is proof positive that big blocks and boost make an awesome combination, especially when you start with a powerful normally aspirated motor. Once back from polishing, we'll do a step-by-step on Everrett's rebuild. The centrifugal supercharger is very similar to a turbocharger, except the centrifugal supercharger is driven by a … The only way to increase the airflow is to pressurize it, the result of which we see as boost. $307.95 Polished Alum. Open 24x7 - Same Day Shipping! ft. to 764 lbs ft. Running less than seven psi, the roots blower upped the power ante of the 496 stroker by an amazing 238 hp and 185 lbs. Includes the following: Quantity 2 JB Performance Supercharger, 8 ounce bottle. We recommend a dual wall box for heavy items (50lbs or better). Stepping up to a 7.0-inch crank pulley resulted in a jump to 452 hp and 492 lb-ft of torque. … Using the supplied 3-inch blower pulley and 6-inch crank pulley, the Weiand 177 supercharger produced a peak of 6.3 psi and increased the power output of the 350 to 405 hp and 446 lb-ft of torque. Big Block kits fit standard deck motors only. 3/15 2. Weiand recommends that all kits use double keyed crankshaft and double keyed, steel, SFI approved balancer. A rather simplified equation we know, but horsepower is basically a function of the amount of air processed by the motor. Vacuum is created in the cylinder by the downward moving piston. If it continues, waste no time sending it in for a rebuild. If we have a 500-horsepower big block and installed a supercharger producing 14.7 psi of boost, (according to the math) we should be able to double the power output to 1,000 hp. We need to clearance the blower. Most Roots style superchargers are around $825 for parts and labor. Replacing the intake and carb with the Weiand supercharger resulted in a jump to 898 hp and 764 lb-ft of torque. Quantity 1 gasket for gear case to front rotor plate. Failure to declare insurance in the repair request does not pose liability back on JBP. The average cost of a rebuild can vary by brand. We'll send you the most interesting Street Muscle articles, news, car features, and videos every week. ft. of torque. The COMP 300BR-14 solid roller offered .652 lift, a 255/262-degree duration split and 114-degree lsa. Please use the Repair Request Form to send in any supercharger for repair. $5.25 - $5.35 OUT OF STOCK B&M 142/144/174/177 Powercharger Gasket/Seal Kit. Airflow Research supplied a set of their CNC-ported 315 heads. The production 454, 4-bolt block was bored .060 over, honed and decked to prepare for the trio of forged internals. They feature -6 AN adapter fittings, a precision-machined 6061-T6 fuel block, a 1/8 in. Wrong! Our acclaimed editorial staff covers all aspects of engine and driveline upgrades with a mission of presenting information that is both interesting and achievable for the “average car guy”. At The Blower Shop We Provide a Full Repair Service On Most Roots Style Superchargers Experience is key when it comes to repairing or rebuilding your roots style blower. Use blue Loctite. The AFR BBC line of aluminum heads featured a number of impressive features including ¾-inch thick head deck surfaces for maximum sealing, perfect for our supercharged application. These are huge numbers for any performance BBC head, but especially considering the comparatively small port volumes. Dyer’s Blowers can rebuild and/or re teflon strip the rotors on you Weiand / Holley / B&M 142, 144, 162, 164, 174 … Find great deals on eBay for B&M Blower in Superchargers & Parts. After adding the Weiand 871 to the 496 big block it is easy to see why the big blocks and blowers are so popular. He located a good core and the price was right. First of all supercharging is a form of power enhancement that forces air into the cylinders. If you suspect that your supercharger is making noise- STOP using it and check your belt idler pulley or other items for noise. After dropping the ignition timing down from 40 degrees to 30 degrees, the Weiand 8-71 Street Supercharger produced 4.9 … Weiand 142 Pro Street supercharger kits are engineered to give you a 25-40 percent gain in power--while maintaining outstanding streetability. If a little boost is good, then more must be better, right? Scoop Assm. Full rebuilds are $475 USD general rebuild labor plus parts for Roots or Twisted Roots Superchargers. Boost and charge cooling theories are all well and good, but the best way to demonstrate the power potential of a blown big block was to combine them on the dyno. Credit the AFR 315 Heads, healthy COMP (blower) cam and Edelbrock/Holley induction combo. Weiand has been around for a long, long time and their supercharger line has always been a signature part of the brand. If the proper parts are not available, JBP is the only company that pays to have the correct parts produced. The ceramic technology developed delivers 40F to 90F degrees lower gear case temperatures. *Use the dimensions below to. The very best you could hope for would now be 850 horsepower (1,000 hp –150 hp). For our performance motor, we strive to supply cool, dense air. The nut can actually be removed while the housing is still on, but you get better access to the nut without the housing in the … Blower kits include: New 671 or 871 stage 1 polished billet rotor blower, polished intake; Complete 3" wide 1/2"drive kit, polished carb adapter plate; Listed kits … In addition, Dyer's Blowers can rebuild, re-telfon strip and refinish your B&M / Weiand / Holley Mini Blowers. The compressor is spun to provide more air than the motor could ingest of its own accord. The supercharger casing is a thick aluminum casting to minimise distortion of the supercharger casing making it great for street car use. They do nothing to protect your investment. Directions on proper care and how to prevent failures is supplied with a rebuild. How to Properly Pack a Supercharger for Shipment. BBC Weiand Std. These blowers feature all new parts, including new thick-wall cases and rotors to eliminate high-rpm flex. Weiand's Pro-Street Superchargers represent a significant leap in technology for obtaining substantial performance gains while maintaining drive ability and reliability. No, the impellers are still straight, but Weiand has created a new Vortec cylinder head-compatible intake manifold. For self contained superchargers, JB Performance also provides an exclusive oil developed and tested by Tribodyn and JB Peformance. We do not glue, epoxy, or silicone incorrect parts in place. The pressure we refer to is atmospheric pressure (14.7 psi or 1 bar). Please see. Remove any sensors, fuel injectors, throttle body, if possible. The blower belt adjustment should be done with the motor cold, and have 3/4″ deflection in or out on the long side of the belt. Return shipping is about $1 to $1.50 per pound and is based on size, weight, and address, and carry $100 minimum insurance with signature confirmation and tracking. Before we get to the test, we should take a moment to better understand supercharging. "E" is Rotor to rotor clearance (also known as the "C and "CC" dimensions found in all Detroit Diesel repair manuals) every different model of blower 3-71, 4-71 6-71 etc has different dimensions) these dimensions ARE used to set up the blower. 30 month limited warranty extensions are available. JB Performance will contact you as soon as the inspection and estimate are completed as well as when the rebuild is completed. Install the WEIAND lower blower drive pulley to this assembly using the six bolts provided. Final testing is provided on an electric dyno for noise testing. First, all Pro-Street kits listed above can be used on both long and short water pump engines, depending on the length of the blower. Taxes and duties are not pre-paid, nor are they estimated here. The cooler the air, the denser the air. Spacers are available for tall deck engines. In this Wrenchin' @ Random, here are some step-by-step directions on building an 8-71 Blower. The star of the show is clearly the Weiand blower, but with a twist. Weiand has been a high performance power source since creating the first ever aluminum intake manifold in 1937! Pumper carb installations on WND-7163 carb adapters layered cardboard, solid foam board, Instapak, ect brand.... Double keyed, steel, SFI approved balancer to send in any supercharger for.... Quantity 1 gasket for drive snout to be around $ 10 is charged if packing peanuts used. 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