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. However, it is not practical to run a small, overdriven supercharger on a large engine, because you would have to run the blower very fast to create a reasonable amount of boost.
How much horsepower will a blower add?
Can you put a blower on a high compression engine?
You should be able to run a 7-8 psi blower with a 9:1 static compression ratio and the engine might run fine on 91 octane fuel. Changing pistons is the best way to affect this change, but it might be possible to reduce compression ratio by switching heads and adding a larger combustion chamber.
Can you fit a supercharger to any engine?
Can you turbocharge or supercharge any car engine? Yes, you can, you can add an aftermarket supercharger system to a car but mind you!
Can I put a supercharger on a stock engine?
When building an engine for supercharging (other than for racing), it is generally built for low to mid-range torque and power. This is similar to a stock engine. And because a stock engine can be used with a supercharger, it would be just as easy to operate or maintain.
How much horsepower will a blower add?
Can you put a blower on a high compression engine?
You should be able to run a 7-8 psi blower with a 9:1 static compression ratio and the engine might run fine on 91 octane fuel. Changing pistons is the best way to affect this change, but it might be possible to reduce compression ratio by switching heads and adding a larger combustion chamber.
How much HP 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.
Will a supercharger damage my engine?
Superchargers use air to increase power, meaning that overboosting the supercharger will blow hot air into the engine and could cause damage.
What's better for boost high or low compression?
The balance of boost versus compression ratio has been an engine builder's and tuner's challenge for years. Picking up a copy of one of the 60's- technology forced-induction manuals will highlight their solution. The higher the boost pressure, the lower the compression ratio of the engine.
What compression do I need to run a supercharger?
7.0:1 to 9.0:1 compression ratio. The optimum compression ratio is 8.0:1. Higher than 8.0:1 is not necessary or recommended. Fuel, ignition timing, and total boost could become critical factors.
What is the advantage of high compression ratio?
A high compression ratio is desirable because it allows an engine to extract more mechanical energy from a given mass of air–fuel mixture due to its higher thermal efficiency.
Can you supercharge a 4 cylinder engine?
Despite usually being reserved for bigger engines, some companies put superchargers in 4-cylinder cars - and the results were totally worth it! With the mechanical drag associated with superchargers, most manufacturers steer well clear of them in the context of smaller displacement engines.
How much HP does a supercharger add?
Supercharger or turbocharger A turbocharger works with the exhaust system and can potentially give you gains of 70-150 horsepower. A supercharger is connected directly to the engine intake and could provide an extra 50-100 horsepower.
Which is better turbo or supercharger?
But each system comes with a unique set of trade-offs. For those looking to balance performance with fuel economy and efficiency, turbocharging is the better choice. For those more interested in a straightforward solution to raw horsepower, supercharging is more likely the way to go.
Is supercharger safer than turbo?
Superchargers are arguably more reliable than turbochargers. They're easy to install and maintain. They're louder than turbochargers—they enhance the RPMs by a considerable amount—and they're also more common as a result.
How much horsepower does a 871 blower add?
The boost supplied by the 8-71 increased the peak power output from 651 hp to 898 hp and torque from 579 lbs. ft. to 764 lbs ft.
What's the difference in a blower and a supercharger?
– While the purpose of superchargers and blowers are basically the same – to pump air into the engine at a rate that is beyond the force of atmospheric pressure – superchargers are driven mechanically via the belts that run off the crankshaft or by an electric motor, while blowers use centrifugal force to push the air ...
How much does a supercharger increase HP?
Supercharger or turbocharger A turbocharger works with the exhaust system and can potentially give you gains of 70-150 horsepower. A supercharger is connected directly to the engine intake and could provide an extra 50-100 horsepower.
How much HP will a supercharger give you?
How much horsepower will a supercharger add? Connecting your supercharger to the engine intake can add around 50-100 horsepower. On the other hand, a turbocharger can add around 70-150 horsepower.
How much horsepower does a 871 blower add?
The boost supplied by the 8-71 increased the peak power output from 651 hp to 898 hp and torque from 579 lbs. ft. to 764 lbs ft.
How much HP does a supercharger add to a 5.7 Hemi?
How much horsepower will a blower add?
Can you put a blower on a high compression engine?
You should be able to run a 7-8 psi blower with a 9:1 static compression ratio and the engine might run fine on 91 octane fuel. Changing pistons is the best way to affect this change, but it might be possible to reduce compression ratio by switching heads and adding a larger combustion chamber.
How much boost can a 671 make?
So equipped, the 6-71 supplied a peak boost reading of just 4.1 psi, allowing the blown big-block to produce 545 hp and 527 lb-ft of torque. Stepping blower speed up slightly by replacing the crank pulley with a slightly larger 55-tooth version resulted in a jump in boost pressure to 5.5 psi.
What does 671 mean in a blower?
Introduced in 1938 and produced well into the 1990s, the 6-71 is a two-stroke, six-cylinder diesel. In GMC diesel nomenclature, 6 represents the number of cylinders, while 71 represents the cubic-inch displacement per cylinder.
What happens if you put a bigger blower on an engine?
At some point, the blower would become inefficient and could actually heat up the air, causing loss of boost. Bottom line: larger blowers are for larger engines. When shopping for a supercharger, you’ll notice boost levels are noted in ranges—as in 6 to 8 psi.
Can you put a smaller blower pulley on a bigger motor?
As far as going to a smaller blower pulley, you'll probably have to go to a larger motor if you do that, or go to a smaller motor pulley to compensate for the decreased diameter of the blower pulley. The blower speed and the motor size have to match.
Can you run a supercharger with a larger blower?
However, it is not practical to run a small, overdriven supercharger on a large engine, because you would have to run the blower very fast to create a reasonable amount of boost. At some point, the blower would become inefficient and could actually heat up the air, causing loss of boost. Bottom line: larger blowers are for larger engines.
How much boost can a blower put out?
If you use a smaller blower you can get away with 5-6 psi of boost on a stock engine on premium pump gas. If you are looking to utilize a larger blower, 6-71 or bigger, you NEED a specifically built engine for the blower. In most cases with a bigger blower you can't get the boost level down low enough to run pump gas.
Below you will find two interesting articles on a similar topic 👇
How do I know if my blower motor went out in my car?How much Overdrive should a blower have?
