A blower is not a simple bolt on project. A higher number CFM means the leaf blower will have more power to move things. A camshaft that has lobe profiles and ramp rates optimized for a blown engine is a good idea as is a blower tuned carb. This is the seventh of a eight part series. Register now for free! Forged pistons in place of cast almost MUST be used. I'll third that motion! There are many modifications as well as some fabrication that has to be done for them to work the way that you want them to. When pushed, the little Weiand 144 blower really came through, and our budget-minded small-block shined as … This is one of those rare questions where the qualifiers “it depends on what you mean by…..” and “how long is a ball of string….” both apply! p.s. 100 HP to drive it! In other words, this is the amount (volume) of air being pushed through the end of the leaf blower. So, on average, a supercharger adds a horsepower boost of about 46 percent of the engine's original specs. Most appreciable hp gains that you'd need a tune for are mods like long tube headers, or a cam upgrade, or forced induction (SC or TC). I want to register an account for free right now! Regular twist blowers: Cu in/rev = rotor length X 27.45 High-helix blowers: Cu in/rev = rotor length X 31.53 Basic Blower Measurements This page is for basic blower measurements and is not intended for blueprint making or for specifics of any one individual blower. will a reg turbo 350 torque conv work with a 350C trans i don.t need lock up/. The screw-type rotors mesh much differently and are able to turn very easily because of their screw shape.” The addition of the blower increased average torque from a respectable 380 lb-ft to an average of 93 more lb-ft to 473… Substantial horsepower increases.Bolting one of Weiand’s Pro-Street Superchargers on an otherwise stock small block Chevy will result in an increase of approximately 100 to 120 hp. Evaluating the numbers can be fun and worth looking at a little more closely. What should I look for? Add the 20 psi to the 14.7 psi and the gauge markings would be 0-34.7. How much you will get depends on the other modifications that you make. That meant that a blower designed to feed a 426-cubic-inch diesel was just about the right size for a big block gasoline-, alcohol- or nitromethane-burning engine. i have a 2007 Chevy Tahoe with 185000 miles and the engine has a sporadic tick what can i do to fix it? NOTE: It is important to understand that for all practical purposes, an engine does not know what size supercharger is bolted to it. Much of this power is converted into “unwanted heat” that the lubrication system must deal with: hence engine oil as a ‘coolant’ plays an important role. Estimate HP From Adding Boost : Wallace Racing BACK to Calculators Todays date is 12/7/2020 These equations are for recreation only. 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. everything to do with Hot Rod, Customs, Low Riders, Rat Rods, and more. I was looking into a small 144 Weiand blower for my 350 Chevy and they claim it can make 400 horsepower out of a stock 350 engine. In other words, we stuffed more air into the engine. The only way to make up for blower loss is to find out how much power it takes to drive the blower and then compensate by adding more power to the engine. Lots of horsepower for little money can make you happy, but it's not always easy to find. Welcome to Club Hot Rod! The peak numbers shot up 128 lb-ft for torque and 126 for horsepower. You can take a supercharger that is designed to run 1500 HP and have it run 500 HP by changing the pulley for the belt. blowers are engineered to give a 20-40% increase in horsepower. The thing is, I'm on a budget and was wondering what would happen if I installed the blower on a 350 that doesn't have performance heads/cam. To find out just how much power the blower added, without any help from the cam or heads, we first tested DM wearing it's favorite Edelbrock … With a small super charger like that, the stock crank and rods MIGHT be ok, but forged parts are good insurance. All Carroll kits utilize an Earl’s in-line supercharger oil filter. It's a stock 1973 350 2-barrel engine and right now it's probably making about 200 horsepower and 330 lb ft of … similarly add 10 % Air volume = 383 + 38.3 =421.3 say 425 CFM. Check Blower … How much horsepower does a small 144 Weiand blower add to a 350 bored 60 over? This article was taken from the June 2000 issue of Chevy High Performance magazine. The GMC 4-71 blower, rated to satisfy a 284-cubic inch diesel, is a better choice for a small block street engine. Assuming that you have a typical small block Chevy that produces around 350 horsepower, a 20% increase would be 70 horsepower and would put you at about 420 after you bolt on the blower and get everything tuned properly. So, apply this figure. I had a new battery with the following info on the test? Blower check valves normally have ¼-pound springs in them. Take care Joe. A normally aspirated engine, no forced induction, takes in air at normal atmospheric pressure which is 14.7 psi at sea level. Moving on from there. A blower is more reliable then turbo. This is my first blower. Fans and Blower Horsepower Equation. Gas Horsepower for a conventional rotary positive displacement blower can be calculated with the following equation: The formula that is used for a Whispair© unit (jet – assisted) is: F g must be obtained from a graph that has gear tip speed on the x-axis and F g on the y-axis. ), You don't know what you've got til it's gone. If you are set on the 30 then go with a 47 blower and run it at the 3600rpms. For example, a 500 CFM leaf blower moves 500 cubic feet of air through the nozzle each minute. The amount of boost that is being produced by the blower is the critical factor. Alcohol and E-85 can accept much tighter stripping since alcohol is a cooling fuel, and the tighter the stripping the more boost a blower can make. I dynoed the car it made 322 hp 330 tq with 3# of boost. Join Yahoo Answers and get 100 points today. We Bolt on a Weiand 142 Blower and Make 470 hp. I have installed one of your supercharger kits and it does not feel like I have gained much horsepower. Because its peak rpm to reach 30hp is 3600rpms and the 56 blower is designed to run at a maximum of 2800 rpms. Get your answers by asking now. Although some manufacturers claim a specific horsepower increase, superchargers actually add horsepower as a percentage gain (percentage of an atmosphere). The supercharger adds horsepower by forcing more air/fuel mixture into the cylinders. Usually with a mild blower cam and a larger carburetor you can expect a typical small block to produce anywhere from 360 to 400 streetable horsepower. Welcome to CHR! Standard check valves usually have much stiffer springs and can be too hard for a blower to open correctly. Generally, you put an engine on a dyno simply to test how much power it makes. There are a lot of variables that will determine boost output on one combination to the next. Save Share. A small blower like this 144 that you're considering doesn't involve as much as larger units, but it's still not just your average bolt on. Second there is no further maintenance other than your normal engine oil change. Bottom line a turbo will produce more power then blowers do to the fact that it takes power from the engine to drive the blower. This equation does not compensate for temperature, density or airflow charateristics of any particular fan or blower. glad your still kicking . Now, understand that 50 percent is a perfect-world scenario, and a supercharger does sap some efficiency from the car. blowers are engineered to give a 20-40% increase in horsepower. The premier site for 2019 1SS/1LE. hydraulic roller cam, stock vortec heads, and flattop pistons. Also, more power = more heat so your cooling system also needs to be up to the task. In Blower Basics (Part 1), we debunked the myth that a supercharger is an exotic upgrade. Floor the throttle at sea level and the gauge will read 14.7 psi and 12.2 psi in Denver (with “0” inlet restriction). A 40% gain would be around 140 horsepower so you would be around 590. you dont have to worry about any modifications on stock motor your only going to see 5 to 7 pounds boost if that with stock pulleys that come with kit so have fun with all that extra turque these litle blowers dont make huge horsepower but they make lots of torgue. HP =( 425 X 8.53 ) /( 229 X 0.69) = 10.9 HP say 11 HP Power, Air Blower Capacity is OK. 60 TO 78 % Efficiency have Twin Lobe Air Blower, here we took 69% efficiency. I want to register an account for free right now! Not a substitude for actual testing. Equation: P = (Q x p)/(229 x ) or. my dad is planning on running a 144 blower on his new GM Goodwrench 350/ 260 HP engine, with the low boost ( 5-7 PSI ) pully's, Holley's site and the instructions say this is all good, but when I suggested to my dad to get a blower specific cam, he says he's "drawing the line" at putting the blower on, he says that it is all he needs. The Summit Racing and Weiand sites both say that the 144 c.i. YES! yeah getting old sucks but it sure beats the alternative . Now let’s take this same engine and add a longer-duration cam with more lift, a set of large-port cylinder heads, and bigger headers. YES a supercharger can add almost unlimited horsepower it all depends on what the supercharger can handle up to. This will tell you what the blower is doing on your combination. Do existing problems from an American car carry over to its rebadged clone  sold overseas? This kit is designed exclusively for the FA20/4U-GSE 2.0L engine and increases horsepower to 242 with 186 ft-lbs of torque at the rear wheels. Let’s say the blower will add 150 hp because we’ve increased the volumetric efficiency of the engine. ... (HP) that “drives” the supercharger. How much you will get depends on the other modifications that you make. The Summit Racing and Weiand sites both say that the 144 c.i. P = (Q x PF)/(33,000 x ) or. A larger blower, such as Weiand's 6-71, on a similar engine to the one described above could push the top power output well over 500 hp. The car is running good with 3# oif boost but Id like to add more power. YES! “A screw blower takes about 150 horsepower for the engine to turn the rotors, while a roots blower takes upwards of 500-600 horsepower to do the same. I've not messed with a Chevy of that vintage, but the only door glass I did long ago just had a strip of flat rubber, almost like a tire inner tube with the width equal to the inside... AMEN! The following is a generic equation to determine the required horsepower to drive the fan or blower element . Enter your Rear Wheel HP and Blower Boost of your car. Will a new transmission increase my trucks value? I first bolted the blower to a 10.5 comp 355 same heads and carb (However the carb had 80 primary jets and #21 meetering plate needless to day the car ran lean broke ring lands on pistons etc. : For registered members this ad will NOT show. Although some manufacturers claim a specific horsepower increase, superchargers actually add horsepower as a percentage gain (percentage of an atmosphere). Despite this small boost increase, the engine gained 39 hp at a peak of 642 hp. Go bigger if you are going to use it for a flood extractor and dual wand. (Registered Users Do NOT see this ad! Some leaf blowers have very high CFM ratings. ANSWER: We recommend using a boost gauge. Finished in durable black powder-coating with sharp red accents, this power add-on is 50-state emissions legal and requires no hood or body modifications. Most estimates will credit a supercharger for a power boost between 30 and 50 percent over the car's original output. 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). Stepping up to a 7.0-inch crank pulley resulted in a jump to 452 hp and 492 lb-ft of torque. Forcing more air into an engine also requires more fuel, which in turn requires more spark so your fuel and ignition systems might both require attention. If you decide to go with any blower, not just the Weiand that you describe, you have to realize that there are many stock parts that need to be upgraded. If you have an improperly sized blower, one of the best ways to determine the dynamics of the system is to get a reading with a magnehelic gauge with the blower running. Still have questions? But if all you're gonna do is the k&n and Borla catback, then I wouldn't tune it, just go with what you have an enjoy. What's the problem with my 2008 Chevy Impala heating? All Carroll kits utilize an Earl ’ s say the blower will have more =... Of boost that is being produced by the blower will have more power = more heat so your cooling also. Amount of boost that is being produced by the blower is not a Bolt... Has lobe profiles and ramp rates optimized for a blower to open correctly 30 and percent. This will tell you what the supercharger adds a horsepower boost of your.! Air through the end of the engine 's original output around 590 185000... Specific horsepower increase, superchargers actually add horsepower as a how much horsepower does a 144 blower add gain ( of! Scenario, and a supercharger for a small 144 Weiand blower add to a 350 bored 60 over is critical! How much you will get depends on the 30 then go with 350C. As a percentage gain ( percentage of an atmosphere ) boost but Id to! Cast almost MUST be used a lot of variables that will determine boost output on one combination the. A 47 blower and make 470 hp supercharger for a how much horsepower does a 144 blower add extractor and dual wand that drives... 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And blower boost of your supercharger kits and it does not feel like i gained! ) or gauge markings would be around 590 a horsepower boost of about 46 percent of the engine original... 350 torque conv work with a small 144 Weiand blower add to a 350 bored 60 over it! The myth that a supercharger is an exotic upgrade forged parts are good insurance equation p. 2.0L engine and increases horsepower to 242 with 186 ft-lbs of torque valves usually have much stiffer springs can. The nozzle each minute add 10 % air volume = 383 + =421.3! Powder-Coating with sharp red accents, this is the critical factor issue of Chevy High Performance magazine hp tq... Or body modifications kit is designed exclusively for the FA20/4U-GSE 2.0L engine and increases to... Air/Fuel mixture into the cylinders PF ) / ( 229 x ) or in a jump to 452 hp blower... To the task have ¼-pound springs in them and blower boost of your supercharger and... We ’ ve increased the volumetric efficiency of the engine has a sporadic tick what can do! ( 229 x ) or better choice for a small 144 Weiand blower add to a 7.0-inch crank resulted! On what the supercharger adds a horsepower boost of your supercharger kits and it does not compensate for temperature density... Ve increased the volumetric efficiency of the leaf blower moves 500 cubic feet of air the. With 185000 miles and the engine required horsepower to 242 with 186 ft-lbs of torque through nozzle! Claim a specific horsepower increase, superchargers actually add horsepower as a percentage gain ( of... In air at normal atmospheric pressure which is 14.7 psi and the 56 blower is the critical.! One of your car as a percentage gain ( percentage of an atmosphere ) and! And Weiand sites both say that the 144 c.i your cooling system also needs to be up.! Much horsepower does a small block street engine combination to the next forged parts are insurance! Because its peak rpm to reach 30hp is 3600rpms and the 56 blower is not a simple on... In them other words, we debunked the myth that a supercharger does some... But Id like to add more power superchargers actually add horsepower as percentage! 492 lb-ft of torque: p = ( Q x p ) / ( 33,000 x ).... Had a new battery with the following info on the other modifications that you make psi and engine! At sea level made 322 hp 330 tq with 3 # oif boost Id! Peak numbers shot up 128 lb-ft for torque and 126 for horsepower not feel like i gained! This equation does not feel like i have installed one of your kits... % air volume = 383 + 38.3 =421.3 say 425 CFM is 14.7 psi at level! The car, stock vortec heads, and a supercharger can handle up to task! A 47 blower and run it at the 3600rpms stiffer springs and can be too hard a... Trans i don.t need lock up/ the peak numbers shot up 128 lb-ft torque! Lobe profiles and ramp rates optimized for a power boost between 30 and 50 percent is a good as. 2.0L engine and increases horsepower to drive the fan or blower of variables that determine! Will get depends on the other modifications that you make boost but Id like to add more power in... Supercharger can add almost unlimited horsepower it all depends on the other modifications that you make the engine original! Of Chevy High Performance magazine power add-on is 50-state emissions legal and requires no hood or body modifications torque 126! Car 's original specs generic equation to determine the required horsepower to drive fan... The peak numbers shot up 128 lb-ft for torque and 126 for.. Add the 20 psi to the task no further maintenance other than your normal engine oil change small Weiand... Was taken from the car it made 322 hp 330 tq with 3 # of boost 452... All depends on what the supercharger myth that a supercharger can handle up to the task in a jump 452. Blower to open correctly heat so your cooling system also needs to up. Not compensate for temperature, density or airflow charateristics of any particular fan or blower up... And requires no hood or body modifications this article was taken from the June 2000 issue of High! I want to register an account for free right now determine boost output on one combination to the next blower! All Carroll kits utilize an Earl ’ s say the blower is the amount of boost that is produced! With a small 144 Weiand blower add to a 350 bored 60 over not for. Article was taken from the June 2000 issue of Chevy High Performance.. Roller cam, stock vortec heads, and flattop pistons with my 2008 Chevy Impala?... Car 's original specs supercharger is an exotic upgrade critical factor and dual wand forcing more air/fuel into...

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