How much power can 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.
What does 6-71 mean on a supercharger?
In GMC diesel nomenclature, 6 represents the number of cylinders, while 71 represents the cubic-inch displacement per cylinder. So the displacement here is 426 cubic inches, and that is the approximate displacement of the blower as well.
How many liters is a 671 supercharger?
The W510R (8.3 Liter) twin-screw supercharger was designed from the ground up to make a simple upgrade to outdated technology such as the 671-1471 roots-type supercharger….Additional information.
| Weight | 130 lbs |
|---|---|
| FINISH | BLACK, POLISHED, SATIN |
How much psi can a supercharger produce?
A supercharger increases the pressure of the air entering the engine so that it’s more than atmospheric pressure. Atmospheric pressure at sea level is 14.7 psi (pounds per square inch), so a typical supercharger providing an increase of between 6 and 9 psi boosts the engine’s air consumption by about 50 percent.
How much boost can a 6 71 blower 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 type of pistons should I use for supercharger?
Forged pistons
Forged pistons are recommended. They have increased strength and ability to withstand higher temperatures.
What is the highest psi supercharger?
Supercharger Comparison Chart
| Supercharger | Gear case | Max Boost |
|---|---|---|
| V-1 SC Supercharger | Std | 20 PSI |
| V-2 S Supercharger | Std | 20 PSI |
| V-2 SC Supercharger | Std | 20 PSI |
| V-1 SCi Supercharger | HD | 21 PSI |
What is the best compression ratio for a supercharger?
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 compression ratio is best for boost?
For compression ratios between 8.0-to-1 and 12.0:1, the higher compression ratio engine will make more power when the boost is between zero and 20psi.
Can you put two superchargers on a car?
Don’t blink. It’s very rare to find two superchargers working in tandem on an engine. Many have tried, few have succeeded.