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How much boost can a 177 blower make?

Posted on by Arif Clayton

How much boost can a 177 blower make?

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. Stepping up to a 7.0-inch crank pulley resulted in a jump to 452 hp and 492 lb-ft of torque.

How does a supercharger pulley work?

A supercharger pulley is a device used on a supercharger to drive the unit through use of the engine’s accessory belt drive system. By altering the size of the supercharger pulley, the speed the unit is turned affects the amount of boost or pressure at which the unit will push the fuel mixture into the engine.

How much horsepower does a blower add?

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. The addition of a set of good heads can boost this into the 440 to 470 hp range. Torque on an engine of this type typically will be in the 400 to 440 Ib.

How much HP does a pulley add?

The engine has to spin that extra weight over 1000 times per minute (RPM) at idle alone, which explains why, after upgrading from an OEM pulley to a lightweight pulley, we typically see gains of 5-8 whp.

How much horsepower does a supercharger pulley add?

Now, understand that 50 percent is a perfect-world scenario, and a supercharger does sap some efficiency from the car. So, on average, a supercharger adds a horsepower boost of about 46 percent of the engine’s original specs.

Does the carburetor go on top of the supercharger?

The blow-through design mounts the supercharger to the inlet side of the carburetor to make it, appropriately enough, blow through the carburetor. The distinction is critical because it determines most components in the fuel system.

Can you Procharge a carbureted motor?

Chevy big-blocks are covered with the model 177 blower, which uses an 800-CFM carburetor. Nine additional units are available for dual carburetor configurations including those mentioned above, as well as Chrysler 392 and 426 Hemi engines.

How much power does a Weiand 177 supercharger produce?

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. Stepping up to a 7.0-inch crank pulley resulted in a jump to 452 hp and 492 lb-ft of torque.

What do you need to know about Weiand 177 blower?

The 177 supercharger was installed next and bolted in place using the supplied hardware. The final touch was installation of the adapter and crank pulley, followed by the 10-rib belt. The blower snout featured a spring-loaded tensioner to eliminate belt slippage.

How big is the pulley on a Weiand blower?

The blower snout featured a spring-loaded tensioner to eliminate belt slippage. After replacing the 6-inch crank pulley with a larger 7-inch pulley, the peak boost jumped to 9.3 psi.

What do you need for a Weiand street muscle blower?

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. We quickly removed the NA induction system and installed the dedicated blower manifold.

How much boost can a 177 blower make?

Posted on by Arif Clayton

How much boost can a 177 blower make?

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. Stepping up to a 7.0-inch crank pulley resulted in a jump to 452 hp and 492 lb-ft of torque.

How much horsepower does a 671 blower add?

Driven 11 percent under, the 6-71 produced a boost curve that began at 4.2 psi at 3,300 rpm and rose to 8.3 psi at 6,400 rpm. This pulley combination produced peak power numbers of 602 hp at 6,400 rpm and 551 lb-ft of torque at 4,700 rpm.

How much boost does a Weiand Pro-Street supercharger have?

Weiand Pro-Street 6-71 and 8-71 supercharger kits come with drive ratios that will typically produce 5 to 7 pounds of boost. These boost levels are based on 350 or 454 cid engines. The 10-71 through 14-71 supercharger kits come with drive ratios that will produce 5 to 8 pounds of boost.

Are there any superchargers for a small block Chevy?

These Pro-Street supercharger kits are designed and engineered to give small block Chevy’s 25-40% more power while maintaining outstanding street-ability! 144 Series Weiand Superchargers feature a low-profile design that offers even more hood clearance than the 142 series.

How much horsepower does a 350 Chevy have?

400-450 Horsepower from a mild 350 Chevy. Low-Profile Design (may require cowl induction hood in some applications). Improved torque for heavy cars and towing applications. Great power adder for low compression crate motors. Full-Time Power every time you hit the gas with no lag!

What kind of torque does a Weiand supercharger produce?

WEIAND SUPERCHARGER TECHNICAL INFORMATION charging, a small displacement supercharged engine can produce similar horsepower and torque to a naturally aspi- rated larger displacement engine. With a Roots blower, the carburetor functions basically the same as it would on an unblown engine, except it now sits on top of the supercharger.

What kind of spark plugs do Chevy 350s use?

About 9:1 ,dish pistons cast iron Vortec heads, probably 600 Edelbrock performer, Performer EPS manifold, stock HEI, maybe MSD module. Thoughts? Edited by Petroholic on 10-05-08 06:50 PM. Reason for edit: No reason given. The specific engine design will determine the heat range of the plug.

How big is the spark plug on a small block Chevy?

Let’s use a small-block Chevy as an example. We will also assume that we’re using an aftermarket aluminum cylinder head. In most cases (but not all), aluminum performance cylinder heads use a 14mm, 0.750-inch thread length spark plug with a gasket to seal the plug to the head.

Which is the hottest spark plug to run?

In fact since heat is power, run the hottest plug you can get away with if you are looking for everything your engine has in it. The rule of thumb is 1 range colder from stock for every 75 hp increase over the stock engine. The heat range has nothing to do with spark and voltage.

Why are spark plugs not working on my 350?

In addition, you may get the end of the plugs so far in that they will hit the piston tops. If you don’t go far enough in, then the plugs will be shrouded and not work well. In addition, you will get carbon on the threads of the head and that again will have the same effect when you put in the correct length plugs.