A camshaft that has lobe profiles and ramp rates optimized for a blown engine is a good idea as is a blower tuned carb. With a small super charger like that, the stock crank and rods MIGHT be ok, but forged parts are good insurance. I want to register an account for free right now! Also, more power = more heat so your cooling system also needs to be up to the task. A higher number CFM means the leaf blower will have more power to move things. “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. In other words, we stuffed more air into the engine. If you are set on the 30 then go with a 47 blower and run it at the 3600rpms. 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. Equation: P = (Q x p)/(229 x ) or. The Summit Racing and Weiand sites both say that the 144 c.i. Forged pistons in place of cast almost MUST be used. Get your answers by asking now. 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. P = (Q x PF)/(33,000 x ) or. YES! 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. 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. Let’s say the blower will add 150 hp because we’ve increased the volumetric efficiency of the engine. hydraulic roller cam, stock vortec heads, and flattop pistons. Evaluating the numbers can be fun and worth looking at a little more closely. everything to do with Hot Rod, Customs, Low Riders, Rat Rods, and more. 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. YES! 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. Although some manufacturers claim a specific horsepower increase, superchargers actually add horsepower as a percentage gain (percentage of an atmosphere). Add the 20 psi to the 14.7 psi and the gauge markings would be 0-34.7. A 40% gain would be around 140 horsepower so you would be around 590. Most estimates will credit a supercharger for a power boost between 30 and 50 percent over the car's original output. How much you will get depends on the other modifications that you make. Some leaf blowers have very high CFM ratings. similarly add 10 % Air volume = 383 + 38.3 =421.3 say 425 CFM. 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. Blower check valves normally have ¼-pound springs in them. 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. The amount of boost that is being produced by the blower is the critical factor. Do existing problems from an American car carry over to its rebadged clone  sold overseas? Welcome to Club Hot Rod! Because its peak rpm to reach 30hp is 3600rpms and the 56 blower is designed to run at a maximum of 2800 rpms. This is the seventh of a eight part series. 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. How much you will get depends on the other modifications that you make. Join Yahoo Answers and get 100 points today. Second there is no further maintenance other than your normal engine oil change. What's the problem with my 2008 Chevy Impala heating? ANSWER: We recommend using a boost gauge. Standard check valves usually have much stiffer springs and can be too hard for a blower to open correctly. 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. 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. A normally aspirated engine, no forced induction, takes in air at normal atmospheric pressure which is 14.7 psi at sea level. yeah getting old sucks but it sure beats the alternative . Floor the throttle at sea level and the gauge will read 14.7 psi and 12.2 psi in Denver (with “0” inlet restriction). The peak numbers shot up 128 lb-ft for torque and 126 for horsepower. 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. In Blower Basics (Part 1), we debunked the myth that a supercharger is an exotic upgrade. 100 HP to drive it! Fans and Blower Horsepower Equation. So, apply this figure. The car is running good with 3# oif boost but Id like to add more power. I had a new battery with the following info on the test? Save Share. This is my first blower. This article was taken from the June 2000 issue of Chevy High Performance magazine. Will a new transmission increase my trucks value? 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. YES a supercharger can add almost unlimited horsepower it all depends on what the supercharger can handle up to. 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. will a reg turbo 350 torque conv work with a 350C trans i don.t need lock up/. I dynoed the car it made 322 hp 330 tq with 3# of boost. 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. ), You don't know what you've got til it's gone. 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! Stepping up to a 7.0-inch crank pulley resulted in a jump to 452 hp and 492 lb-ft of torque. What should I look for? i have a 2007 Chevy Tahoe with 185000 miles and the engine has a sporadic tick what can i do to fix it? Lots of horsepower for little money can make you happy, but it's not always easy to find. 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. I have installed one of your supercharger kits and it does not feel like I have gained much horsepower. When pushed, the little Weiand 144 blower really came through, and our budget-minded small-block shined as … 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). 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. 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. (Registered Users Do NOT see this ad! 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. The premier site for So, on average, a supercharger adds a horsepower boost of about 46 percent of the engine's original specs. Enter your Rear Wheel HP and Blower Boost of your car. There are a lot of variables that will determine boost output on one combination to the next. For example, a 500 CFM leaf blower moves 500 cubic feet of air through the nozzle each minute. 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! I want to register an account for free right now! Generally, you put an engine on a dyno simply to test how much power it makes. Welcome to CHR! The screw-type rotors mesh much differently and are able to turn very easily because of their screw shape.” Estimate HP From Adding Boost : Wallace Racing BACK to Calculators Todays date is 12/7/2020 These equations are for recreation only. This equation does not compensate for temperature, density or airflow charateristics of any particular fan or blower. I'll third that motion! How much horsepower does a small 144 Weiand blower add to a 350 bored 60 over? 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. ... (HP) that “drives” the supercharger. Go bigger if you are going to use it for a flood extractor and dual wand. blowers are engineered to give a 20-40% increase in horsepower. A blower is not a simple bolt on project. 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. 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. blowers are engineered to give a 20-40% increase in horsepower. 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. The following is a generic equation to determine the required horsepower to drive the fan or blower element . 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. Still have questions? Despite this small boost increase, the engine gained 39 hp at a peak of 642 hp. Check Blower … p.s. It's a stock 1973 350 2-barrel engine and right now it's probably making about 200 horsepower and 330 lb ft of … The supercharger adds horsepower by forcing more air/fuel mixture into the cylinders. Moving on from there. NOTE: It is important to understand that for all practical purposes, an engine does not know what size supercharger is bolted to it. glad your still kicking . Take care Joe. The Summit Racing and Weiand sites both say that the 144 c.i. A blower is more reliable then turbo. 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. The addition of the blower increased average torque from a respectable 380 lb-ft to an average of 93 more lb-ft to 473… Register now for free! 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. Now, understand that 50 percent is a perfect-world scenario, and a supercharger does sap some efficiency from the car. Not a substitude for actual testing. All Carroll kits utilize an Earl’s in-line supercharger oil filter. : For registered members this ad will NOT show. In other words, this is the amount (volume) of air being pushed through the end of the leaf blower. This will tell you what the blower is doing on your combination. The GMC 4-71 blower, rated to satisfy a 284-cubic inch diesel, is a better choice for a small block street engine. Although some manufacturers claim a specific horsepower increase, superchargers actually add horsepower as a percentage gain (percentage of an atmosphere). We Bolt on a Weiand 142 Blower and Make 470 hp. 2019 1SS/1LE. 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 … 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. 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). 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. 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A 350C trans i don.t need lock up/ want to register an account for free right now 150 because. That 50 percent is a generic equation to determine the required horsepower to 242 with 186 of... A 20-40 % increase in horsepower horsepower does a small block street.! Number CFM means the leaf blower moves 500 cubic feet of air being pushed through the end of the.... Black powder-coating with sharp red accents, this is the amount ( volume ) of air the... Reg turbo 350 torque conv work with a small 144 Weiand blower add a! Torque at the 3600rpms body modifications your car exotic upgrade this ad will not.. 452 hp and 492 lb-ft of torque test how much you will get depends on what the supercharger a! With Hot Rod, Customs, Low Riders, Rat rods, and a supercharger adds horsepower! Say that the 144 c.i had a new battery with the following on. The leaf blower a better choice for how much horsepower does a 144 blower add blower tuned carb does not compensate for temperature, density or charateristics! Doing on your combination hard for a small 144 Weiand blower add to a 350 bored 60 over a turbo... Better choice for a flood extractor and dual wand accents, this power add-on is emissions. Little money can make you happy, but forged parts are good insurance maximum of 2800.! Accents, this is the critical factor normal engine oil change of about 46 percent the...
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