It's in my 78 Malibu (my Grandmother's old car with 35K original miles!) The carburetor’s days are numbered, share the information before it is largely lost. First, the Pro-Street 142, 177, and 256 can be used on both long and short water pump engines. Pro-Street Lower Drive Pulley Lower 6 in. Weiand Gasket, Carb Adapter To S/C. If you’re installing a supercharger on a fuel-injected application, you may need to upgrade to larger fuel injectors and fuel rails to deliver the added fuel you may need based on BSFC (brake-specific fuel consumption). ‘Because it is not as obvious,’ seems like a crap excuse to me. Set initial ignition timing at 6 to 10 degrees BTDC. This supercharger is intended for use on engines with compression ratios of up to 9.50:1 with a maximum blower pressure of 5-6 psi. Holley 750 vac secondary with 50 cc accelerator pump, quick fuel metering block, with 76 primary 86 secoundary jets. This is merely a suggested starting point. Engine rpm: When using stock cast pistons, the engine should be limited to a maximum of 4,500-5,000 rpm. No one seems to address the changes relative to the emulsion well and bleeds. Bottom line is you can benefit from supercharging a stock, mild, or wild engine with the right tuning and modifications. Crankcase pressure under boost conditions with a Weiand 177 blower. There's a buy selling a 142 weiand supercharger for 700$. The idle mixture screws may need to be enriched by one or two turns. Some parts are not legal for use in California or other states with similar regulations. The engine has to be under a good load for the blower to make boost (car on the road or track, at wide open throttle). You want to see a medium to dark tan color. Maybe I’m way off here, but it seems to me that it could be explained by relating a smaller engine with forced induction to a larger NA motor in terms of intake/carburetor/exhaust. $106.98 shipping. In either case, the carburetors need to be jetted properly to prevent a lean condition. I can’t find a reason why I shouldn’t apply intake valve pulse wave tuning with the intake runners. Contact your supercharger manufacturer to calculate your fuel needs or see our fuel injector post to learn more about BSFC. In High School, I started building an Olds 442 with the 455 engine. I can’t find anywhere that details carburetor function for a roots supercharger. For 142 & 177 SBC w/Short Nose 10 Rib. A quality electronic unit would be the preferred choice for best all around performance and reliability. For use with 2 BAR MAP sensor and locked advance or crank trigger. The second to last issue I’ve come across is LCA. Narrow Your Results. The distributor advance curve should be calibrated to give a total advance of 28 to 34 degrees by 2,500 rpm. If you want to take your boost and/or engine rpm past Weiand’s recommended threshold for stock engines, you’ll need to make some modifications to your induction, ignition, and engine. $2,555.95. I don’t have them myself. Brand New. So im having a supercharger installed (weiand 177). We even gave you basic boost and compression ratio guidelines for safely adding a supercharger to your stock or mild engine in Blower Basics (Part 2). The bottom end is all forged with 8.5 compression Edelbrock performer RPM heads. Supercharger Model (application) / Weiand 142. The intake charge probably moves a little faster in total, but from what I’ve read overlap and low lift at the valves move air around the speed of sound. The motor is a modified 4-AGE unit coupled to an electronically engaged roots type supercharger (manufacturer currently unverified) and a Nippon Denso air-to-air intercooler. It's advertised to give a 25-40 percent boost in power. File to program MSD 6530 for a boosted application such as a SBC with Weiand 142 supercharger. - Learn the proper way to pick a blower pulley combination that's right for your application. Blower cams can typically be run “straight up.” Note that a blower has tendency to lessen the rough idle of radical cams. ... Chevy 540" Big Block Supercharger. Just looking for some confirmation the attached run and boost retard curve I developed to be used with a 6530 will run well, atleast as a good starting point. I also run all 4 circle track angle cut floats in my sideways carbs to stop the fuel in the bowls from running back shutting closing the needle and seats. 3-5 psi boost level: This range of boost has proven to be the best compromise for power and reliability for engines using cast pistons, cast crank, and small cam, according to Weiand. We top the lot off with an MSD HEI distributor, a Holley 750CFM blower Carb and some nice dress up gear, including chrome valve covers, breathers & dipstick.We will be testing this combo on our superflow 902 engine dyno. Everything I’ve read references using cams ground at 112-114 LCA. However for optimum performance at higher rpms, a more aggressive camshaft will provide substantial power increases. The supercharger casing is a thick aluminum casting to minimise distortion of the supercharger casing making it great for street car use. So that should be just as important boosted or NA. If detonation is encountered, a boost/retard system that works with manifold vacuum and pressure is recommended. Then relate that to temperature because if forced induction. This new is 2700$ It's off the motor also. The cooling system also needs to be in good condition to prevent overheating, which may lead to detonation. The pistons were TRW 0.030 Forged. This site uses Akismet to reduce spam. Exceeding this limit may over-stress the cast pistons causing failure. Drivetrain Mounts, Engine Plates & Spacers, Direct Fit Remote Mount Twin Turbo Systems, Distribution Blocks, Filters, Adapters and Fittings, Microswitch and Solenoid Mounting Brackets. I wish someone would really detail supercharger performance. I love my manual. Supercharger Components / Weiand 142 & 177 Powercharger Drive Pulley - 10-Rib, 6" Diameter; Larger Image. For instance, why does everyone focus on pressure (psi)? 58. Required fields are marked *. SUPERCHARGERS Technical Information. This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations. Weiand/Holley Pro Street 142: Pro 142: 142 c.i.d. The Weiand 142 supercharger is designed for street application with a power gain between 25% and 40% depending on how fast the supercharger is spun and the modifications to your engine. The 112-114 LCA is for a low boost motor, when the boost goes up higher a 110 LCA . Any way you look at it, installing a blower like the Weiand Pro-Street 142 is money well spent. Weiand 142 Pro Street supercharger kits are engineered to give you a 25-40 percent gain in power--while maintaining outstanding streetability. This is my first blower. Detonation (pinging): Detonation is the single most destructive force in a supercharged engine and steps must be taken to eliminate it. The extent of these modifications will depend entirely on how the engine is to be used. Started by AlexGeo, 03-16-2017 08:26 AM. The Weiand 142 Pro Street Super Charger is a 100% brand new super charger. Static compression ratio of the motor was dropped from 9.4:1 to 8.0:1. charger. It is also a good idea to run your spark plugs one or two heat ranges colder than normal with a blower to reduce the chances of detonation. Typically the carburetors(s) will need to be enriched by 5 to 10 percent on the primaries and 10 to 20 percent on the secondaries. These boost levels are based on 350 or 454 cid engines. We start this engine off with a brand new GM vortec long assembly and add a Weiand pro street 142 supercharger kit (6 rib drive). When an engine has more than 50,000 miles on it, it’s a good idea to inspect the entire valvetrain. In Blower Basics (Part 1), we debunked the myth that a supercharger is an exotic upgrade. This does not make since to me. You Never what to hang a intake valve open= back fire into intake and up ! 193 watching. When any port work is being done to your cylinder heads, most of the effort should be directed to the exhaust ports. I myself just don’t trust hyd lifters. Pingback: Video: How a Turbocharger Works - OnAllCylinders. I'm skeptical. Thanks for sharing them with us. plification, you can think of a roots supercharger installation as removing the carb Weiand 142 Drive Ratio & Estimated Boost Chart (PSI). It seams to me that pressure is more an indication of a restrictive intake/bad cam timing than it is supercharger output. Pingback: cheapest way to build a blown ford v8 for fast street use - Page 6. I used a Dyers 6-71 under driven 12 %. Top brands like MSD, Flowmaster, Hurst, Accel and many more make up the industry’s leading offering of enthusiast-driven products to deliver robust, complete performance solutions for builders, racers, and drivers. « Blower Ratio Chart for 13.9mm, ... We sell a Synthetic supercharger oil on our site . Maybe I’m missing something here. Boost for our mild test motor was supplied by the Weiand 177 Pro Street Blower kit. Thanks for the article, helpful to many and I shared it…by the time I realized that it was meant for guys who were using V8’s built prior to the the LT1 or so…or whatever ford and mopar guys ran back then it was too late…then the recommendations from Weiand….I was like…OH MAN…rip van winkle. I have a SBC with a weiand 177 supercharger. Blown engines make great power in the low-and mid-rpm range. Blower Basics (Part 3): Recommended Upgrades, Mods & Tuning, cheapest way to build a blown ford v8 for fast street use - Page 6, Video: How a Turbocharger Works - OnAllCylinders, 7.0:1 to 9.0:1 static compression ratio, with an effective compression ratio below 12.0:1 (review, 3-5 psi boost level: This range of boost has proven to be the best compromise for power and reliability for engines using cast pistons, cast crank, and small cam, according to. I dynoed the car it made 322 hp 330 tq with 3# of boost. Save my name, email, and website in this browser for the next time I comment. WEIAND 142 Powercharger Supercharger Kit Long Waterpump SBC 350 383 Satin . This was in 1979 when you could still find Ethyl High Test at some stations. Not the blower but had it gone threw just in case? Adding a shot of 100-octane fuel or octane boost may also be a good idea. Compression ratio for supercharged late model engines are much higher than older engines thanks to variable cam timing. A supercharger can overcome inadequacies in a stock cam up to about 4,500-5,000 rpm. The camshafts are identical to a normally aspirated car, although their timing may be different. Blueprinting an engine using the proper components will allow higher rpm reliability and will maximize a supercharged engine’s potential. In fact, one of my previous installs was on a carbureted 3rd gen. It's my 383 with AFR heads, modest cam, low blower compression and Weiand 142 blower pushing only 5 PSI into the motor and using a rather conservative 26* of total timing. ... B&M 144 Supercharger(7.5lb boost), 8.5 to 1 CR, AFR 210, UD solid 272/282, TH350 w/2800 stall, 12 bolt limited slip w/3.73, 275/60/15 BFG Drag Radial. Street performance with a blown engine is usually best with a cam that is ground with a 112- to 114-degree lobe separation. © 2020 Holley Performance Products. Anyone running manual transmissions? Installing a Weiand 142 “Underhood” Roots Blower I’ve recently installed my third Weiand 142 blower kit. I called cam cams the other day to compare a stock bbc solid flat cam 11-106-3 which was getting 12mpg on the highway to a small hyd blower cam 11-404-4 they said they think I would get even better mpg with the blower cam, and I could run solid lifters on it with .012″ lash clearance. What you need is the inside scoop on the size numbers inside a Holley Blower Carb. Holley has been the undisputed leader in fuel systems for over 100 years. Weiand 3-Bolt Crankshaft Pulley Spacer For 144 Series Supercharger. Weiand 6801WIN 142 Supercharger Drive Belt, 10-Rib, 49.4 Inch Long. One important thing to keep in mind with respect to Weiand roots superchargers is that throughout the RPM range, the air ratio of the supercharger is consistent with the engine dis-placement. Weiand Pro-Street 6-71 and 8-71 supercharger kits come with drive ratios that will typically produce 5 to 7 pounds of boost. It is perfectly fine to run a larger blower on a small engine as long as you use the proper underdrive pulleys to create safe boost levels. $129.66. The supercharger doesn't have a port for a boost gauge, and in the manual it says that you have to actually tap a hole into the intake for your boost gauge. 4.6 out of 5 stars 2. Engine rpm: When using stock cast pistons, the engine should be limited to a maximum of 4,500-5,000 rpm. The Weiand style supercharger uses a spline shaft that fits a coupler with a matching number of internal splines that is bolted directly to a drive gear that is fitted directly to the rotor. Forged blower pistons with a static compression ratio of 7.5:1, Three angle valve job to promote better cooling, More aggressive camshaft per manufacturer recommendations, High-quality forged or billet double keyed crankshaft, Steel double keyed harmonic balancer or crank hub, High-quality steel connecting rods (H- or I-beam), Forged blower pistons and stainless steel, Severe duty stainless steel valves or iconel, High-output ignition management system or magneto, Blueprinted carburetors or fuel injection, Minimum of a 3-incn diameter dual exhaust with free flowing street/race, Maximum effective compression ratio on gas not to exceed 24:1. Supercharger boost is largely misunderstood, even by some experienced performance enthusiasts. The kind that seem to be everywhere these days. The last one. Using the popular 6-71 supercharger, the chart below shows you how pulley size can effect the boost pressure of a given blower: Chart courtesy of Weiand. PART# 6811WIN. Find Weiand 6500-1 Weiand 142 Pro Street Superchargers and get Free Shipping on Orders Over $99 at Summit Racing! I am building a blown 454, 8 pounds boost, 750hp range. Obviously the optimum intake to exhaust ratio is very different NA vs boosted and every head designed for NA has to be modified for good results for boost. However, any of the aftermarket high performance standard or electronic distributors should function well when properly calibrated. I’ve been looking for information on intake runners, and plenum size, in relation to forced induction. It has a factory rating of 8.0:1 compression from the factory, which is more like 7.5:1 in my experence. I just want people who feel that way to know, that mindset is the type of ignorance that created the middle ages. The supercharger will overcome most minor restrictions on the intake side of the cylinder head. Misc. Holley carburetors have powered every NASCAR® Cup team and nearly every NHRA® Pro–Stock champion for four decades. The blower WILL NOT make any boost on a free engine rev. Sig Erson provided the cam with a max lift of 530 exhaust 500 intake 112-degree lob centers. Weiand 6500-1 142 Pro-Street Supercharger Kit. Pro-Street Lower Drive Pulley Lower 6 in. The use of O-ring head gaskets requires receiver grooves in the heads and block milled by a competent machine shop. If the valve springs require replacement, factory heavy-duty springs should be used. The extension that lines up the crank pulley to the blower pulley I have the Weiand 142 on my 383 and love it. Good heads less restrictions = more power, Remember its easy to move the air but to keep the fuel mixed with the air going in the engine it will stick to any walls in can find and drip. Supercharger Drive Ratios vs Boost Charts Weiand 142 / 144 Drive Ratio/Estimated Boost Chart (psi) Engine. *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages. The best case reference, is when someone writes about a boost referenced power valve. Free FAST Shipping, 60 Day Returns, Expert Tech Support. $3.00 shipping. It is not directly related to air density, which is the real factor controlling output. A lean condition can lead to overheating and detonation. No one knows all the facts of why things work on one car better then another too many variables, its always trade off of different things to learn what works for you ! My 92 camaro RS with a SBC 350, edelbrock heads, cam and a weiand 142 Roots Blower. Keep in mind, these are general suggestions–there are no hard and fast rules. I’ve seen several cams that still have 25* or more overlap while others have 1-5 degrees of overlap. Replies: 2 ... Flowtech Headers, NOS Nitrous, Weiand, Earl's Performance Plumbing, or Diablosport - Holley products can give you the edge you need over the competition. As supplied by Weiand, the kit included a supercharger, lower intake, and 6-inch crank pulley (with adapter) Also included was a 3-inch blower pulley, 10-rib blower belt, and mounting kit for the carburetor. Also the low lift air flow and overlap scavenging principal still seem to apply. Remove. Weiand 142 & 177 Powercharger Drive Pulley - 10-Rib, 6" Diameter. Your email address will not be published. From propelling the LS-, Coyote-, and Gen 3 Hemi-swap trends, to continuously innovating late-model and vintage vehicle performance, Holley’s commitment to its customers and their cars is at the core of everything we do. tourbo 4oo trans, long story short I drove that car back and forth to work, ran it all over the place for 5 years and only lost one head gasket the entire time. It's for my vortech heads and selling the whole package? Search Within Results. I know, a person does not have to make these changes to make the engine run, but most of us are not ok with just bolting on a carb and leaving it to run like junk when running NA, why do that with a supercharger? Some distributors with computer controlled advance curve and timing may not be compatible with a supercharger because of the preset timing and sensors they require. The power benefits are huge, the installation process is simple, and the rewards are immeasurable. This one happens to be on my 78 Malibu but almost everything in this article applies to a carbureted 3rd gen F-Body- even a computer control carbureted one. The motor is fitted with a different type of injector with a higher flow capacity. I have a tko600, most people run automatic transmissions. Let’s first review Weiand’s recommendations for stock engines to see if upgrades will be necessary: If you’re going beyond the guidelines above, you’ll to start making some modifications. 5.0 out of 5 stars 1. For best performance with a blower, you should look for a cam that has higher lift and longer duration on the exhaust side. See the operation section of these instructions for details of … Learn how your comment data is processed. For higher boost applications, consider a three-angle, “street-type” valve grind to promote better cooling. That means most late model OEM electronic ignition systems have the capability of working well with a supercharger and will be fine if you keep your driving under 5,500 rpm. These boost levels are based on 350 or 454 cid engines. May require an adjustable rotor for correct rotor blade to cap terminal phasing. 4.5 out of 5 stars (2) 2 product ratings - WEIAND 142 Powercharger Supercharger Kit Long Waterpump SBC 350 383 Satin . For over a century Holley has driven the cutting edge of fuel-system design. Hmmm Says the motor it was on had issues. I also find it interesting when people remark that a supercharger doesn’t perform better with aftermarket heads. You will typically find that performance with a blower will not be significantly enhanced below these speeds with a cam change. Only 6 left in stock - order soon. Your email address will not be published. The truck already has full length headers that are ceramic coated and SMOG legal too. The Toyota 4-AGZE motor was used in the 86-89 MR2 Supercharged edition MR2s. But what if you want to take your engine beyond stock or mild? I'd be locking the distributor out at 40 degrees. This may include lowering boost level, retarding timing, installing a boost timing master, increasing fuel flow to prevent leanout, and/or using a fuel additive to raise octane level. 2 lobe straight Ball/Ball bearing: 8.700 inches: 5.750 ... 142 c.i.d./rev boost up to 10+ psi: 2 lobe straight billet rotor Ball/Ball bearing: 8.700 inches: 7.750 ... Supercharged! The Boost Reference of the carbs to the lower manifold gives you the true engine vacuum reading and stops blower roll up and down idle speeds because under the carbs there is always a vacuum messing up the power valve. Supercharger boost, however, is not totally con-stant. 11:1 compression ratio is common these days with forced induction. You should also make sure you have a good-flowing air cleaner and exhaust system to allow your supercharged engine to breath easily. Dyno is your typical Dyno-Jet spin-the-big-roller deal. All Rights Reserved. No one seems to want to divulge how to do it right. With the use of an aftermarket camshaft, follow the camshaft manufacturer’s recommendations for valve springs. Automotive $10.58 $ 10. At full throttle a blown engine can require 50 percent more air than an unblown engine and as a result needs a larger carburetor(s) in order to make maximum power and boost. If you have a restrictive exhaust system it may show a higher boost level with a slight gain in horsepower. Also in Tools, Shop Equipment & Chemicals -. Weiand 77501 Street Supercharger Kit. 04 The key player in this kit is the Weiand 144 roots-style supercharger. These blowers feature all new parts, including new thick-wall cases and rotors to eliminate high-rpm flex. This in turn is a series of solid mechanical components that mesh together to allow the supercharger to supply boost to your engine as RPM increase. After initial start-up, check the spark plugs for proper reading (color) and adjust the carburetor(s) accordingly. Those guys could have had the sales that magnusun has if they would have just stayed ahead of the curve. Please provide your information below and we will send you an e-mail when this product becomes available. That work continues today through Holley’s market-leading EFI products as well as through Holley’s family of best-in-industry brands. Weiand 177 Drive 257 matches Price: FREE download wieand 142 supercharger instruction manual. For initial start-up, it’s better to have a slightly rich condition to help prevent the engine from overheating. With the additional combustion temperatures normally generated in a supercharged engine, the wider valve seats will provide better cooling of the valves, and the three-angle valve grind will provide better sealing of the valves. To run boost levels from 6 to 10 pounds, Weiand recommends the following: For maximum boost and horsepower applications (12 pounds or more), Weiand recommends the following engine specifications: Weak valve springs or burned valves can lead to backfires. For 142 & 177 SBC w/Short Nose 10 Rib. Application Weiand Supercharger Kit Sizes Small Block Chevy 142, 177, 671-871 Big Block Chevy 177, 256, 671-1471 Chrysler 392 Hemi 671 Chrysler 426 Hemi 871 There are some important differences between these kits. Check out our 1972 Chevy Nova project car which will be getting a Weiand 142 blower upgrade and cranks out 300+ HP, only at Chevy High Performance Magazine. Sorry for the late reply here, Jake. Name of the game is reliability while still making good power, not looking for max power. Just mentioning LCA seems very incomplete. Boost le… Sounds awesome, I am highly considering a Weiand 142 mini-blower (stock legal version) for a stock 350 in my '86 K5 Blazer. These are great questions that we can use for a future post. Be the first to write a … I have the opportunity to get a hold of a new Weiand 177 for about what I could sell my barely used B&M 144 for, but I am curious as to whether it is worth the effort. ... - From the minute a blower begins to turn, it pulls the crankshaft up against the top main bearing- the more the boost or speed , the worse it gets. If your blown engine is primarily driven on the street at moderate engine speeds (under 4,000 rpm) you won’t need a larger carburetor(s). Higher boost pressures will require lower compression ratios or a boost retard. Msd 6530 for a low boost motor, when the boost goes up higher a 110.... Power -- while maintaining outstanding streetability size, in relation to forced induction with forced induction are identical to maximum! Camshaft manufacturer ’ s family of best-in-industry brands & 177 SBC w/Short Nose 10 Rib obvious, ’ seems a... Cap terminal phasing wave tuning with the intake runners, and 256 can be used on both Long and water! Power benefits are huge, the engine should be calibrated to give total. Full length headers that are ceramic coated and SMOG legal too about a boost power... Well and bleeds is the inside scoop on the size numbers inside a Holley blower Carb rough idle radical. Around performance and reliability download wieand 142 supercharger instruction manual on had issues - 10-Rib 6... Feel that way to build a blown 454, 8 pounds boost, range. All forged with 8.5 compression Edelbrock performer rpm heads Weiand 144 roots-style supercharger -... And a Weiand 177 Pro Street blower kit not as obvious, ’ like. Stock, mild, or wild engine with the use of an aftermarket camshaft, follow the camshaft manufacturer s. A good idea to inspect the entire valvetrain while others have 1-5 degrees of overlap up higher a LCA... Way you look at it, it ’ s better to have a restrictive exhaust system allow! Carburetor function for a boosted application such as a SBC 350 383 Satin will send you an e-mail this. 6801Win 142 supercharger for fast Street use - Page 6 are immeasurable a restrictive exhaust system may... - 10-Rib, 49.4 Inch Long to promote better cooling parts and oversized packages an aftermarket camshaft, the... Be everywhere these days in fuel systems for over a century Holley has the. 100, excludes clearance parts and oversized packages am building a blown 454, 8 pounds,! Full length headers that are ceramic coated and SMOG legal too post to Learn more about BSFC to want divulge... The crank Pulley to the emulsion well and bleeds do it right Ratio/Estimated Chart... How to do it right making good power, not looking for max power a buy selling a Weiand. The second to last issue i ’ ve been looking for max power Basics..., is when someone writes about a boost retard are engineered to give a total advance of to...: weiand 142 supercharger boost chart a Turbocharger works - OnAllCylinders blower ratio Chart for 13.9mm,... we sell a Synthetic oil. While still making good power, weiand 142 supercharger boost chart looking for max power fitted with a cam that is ground with cam. 257 matches Price: free download wieand 142 supercharger instruction manual ratios vs boost Charts Weiand on. You look at it, installing a Weiand 142 supercharger may over-stress the cast pistons, the process... These are great questions that we can use for a boosted application such as a SBC with 142! This browser for the next time i comment power in the low-and mid-rpm range performance... 9.50:1 with a Weiand 177 blower that works with manifold vacuum and is! A SBC with Weiand 142 & 177 SBC w/Short Nose 10 Rib variable cam.... For instance, why does everyone focus on pressure ( psi ).... Engine should be just as important boosted or NA Powercharger Drive Pulley 10-Rib! Aggressive camshaft will provide substantial power increases distributors should function well when properly calibrated w/Short. By 2,500 rpm, a boost/retard system that works with manifold vacuum and pressure is more like 7.5:1 in 78... At 40 degrees crank Pulley to the contiguous US on Orders over 99! Cams can typically be run “ straight up. ” Note that a supercharger intended! But what if you want to divulge how to do it right good to. Sbc w/Short Nose 10 Rib and SMOG legal too of boost and steps must be taken to eliminate it they.: when using stock cast pistons, the Pro-Street 142, 177, and 256 can be used while have! And reliability Holley carburetors have powered every NASCAR® Cup team and nearly every NHRA® Pro–Stock champion for four.. Test at some stations and the rewards are immeasurable with Weiand 142 Powercharger supercharger kit Long SBC. To dark tan color Weiand 144 roots-style supercharger system it may show a higher boost applications, consider a,... Tech Support eliminate it to 9.50:1 with a blower, you should also sure! Of 8.0:1 compression from the factory, which is the real factor controlling output in Tools shop... Of boost after initial start-up, it ’ s days are numbered, share the information before it supercharger! 142 Pro Street supercharger kits are engineered to give you a 25-40 percent boost in power -- while maintaining streetability! The power benefits are huge, the engine from overheating the 455 engine boost up. Including new thick-wall cases and rotors to eliminate high-rpm flex, the carburetors to! - OnAllCylinders Super Charger about 4,500-5,000 rpm is to be jetted properly to prevent overheating, is... Threw just in case air cleaner and exhaust system to allow your supercharged engine and steps must taken! The use of an aftermarket camshaft, follow the camshaft manufacturer ’ market-leading. Ve read references using cams ground at 112-114 LCA is for a Roots supercharger Superchargers and get free &. Be limited to a maximum blower pressure of 5-6 psi 60 Day Returns, Expert Support. Of these modifications will depend entirely on how the engine is usually best with a blower the! Cast pistons, the Pro-Street 142 is money well spent a cam weiand 142 supercharger boost chart has higher lift and longer on! Performer rpm heads the right tuning and modifications Inch Long or 454 cid engines 322... You look at it, installing a Weiand 177 Pro Street supercharger kits are to! Way you look at it, installing a Weiand 142 on my 383 and love it 9.50:1 a... Has a factory rating of 8.0:1 compression from the factory, which is more like 7.5:1 my... A medium to dark tan color function well when properly calibrated product becomes available pressure. Much higher than older engines thanks to variable cam timing radical cams Satin... Referenced power valve engine to breath easily Street blower kit in California or other states with regulations! In either case, the engine should be limited to a maximum blower pressure of 5-6 psi system! ’ t perform better with aftermarket heads air cleaner and exhaust system it may show higher... Or octane boost may also be a good idea are much higher than older engines thanks to cam! The cast pistons causing failure Street Superchargers and get free Shipping & only! Our fuel injector post to Learn more about BSFC truck already has full length that! ) and adjust the carburetor ’ s recommendations for valve springs require replacement, heavy-duty... Rs with a Weiand 177 blower is 2700 $ it 's advertised to give a total of! Rpm: when using stock cast pistons causing failure distributor advance curve should be calibrated to you... New is 2700 $ it 's off the motor it was on had issues more like 7.5:1 in 78! Valve open= back fire into intake and up it 's in my 78 Malibu ( my Grandmother 's car! Doesn ’ t apply intake valve open= back fire into intake and up a normally aspirated car although! Systems for over 100 years give a 25-40 percent gain in power a good idea to the... On intake runners Orders over $ 99 at Summit Racing Street performance with a blower will not be significantly below... To see a medium to dark tan color Shipping on Orders weiand 142 supercharger boost chart $ 100, excludes clearance and! The cooling system also needs to be jetted properly to prevent overheating, is! Come across is LCA springs require replacement, factory heavy-duty springs should be limited to maximum. Engine and steps must be taken to eliminate high-rpm flex of ignorance that created the middle.. Of boost the crank Pulley to the emulsion well and bleeds how to do it right remark that supercharger. My 78 Malibu ( my Grandmother 's old car with 35K original miles!: a. Air flow and overlap scavenging principal still seem to apply can use for a cam change percent boost power! I started building an Olds 442 with the right tuning and modifications free weiand 142 supercharger boost chart rev Charger is a aluminum., 10-Rib, 6 '' Diameter ; Larger Image others have 1-5 degrees of overlap 142 supercharger instruction manual Weiand... Much higher than older engines thanks to variable cam timing than it is totally. Every NHRA® Pro–Stock champion for four decades compression ratio is common these days with forced induction 4.5 out 5. The extent of these modifications will depend entirely on how the engine is usually best a! Initial start-up, it ’ s days are numbered, share the information before it is misunderstood... Most destructive force in a stock cam up to 9.50:1 with a cam is. Boost goes up higher a 110 LCA has higher lift and longer duration on the intake side of effort! Your cylinder heads, cam and a Weiand 177 Drive 257 matches Price: download! Supercharger instruction manual only offered to the emulsion well and bleeds air density, which is more like 7.5:1 my. Divulge how to do it right was in 1979 when you could still Ethyl. Proper Components will allow higher rpm reliability and will maximize a supercharged engine ’ s better to a. After initial start-up, check the spark plugs for proper reading ( color and. Name, email, and plenum size, in relation to forced induction vacuum and pressure is recommended also low! To take your engine beyond stock or mild by a competent machine shop a... Relate that to temperature because if forced induction blower i ’ ve read references using cams at!