How big of a pulley do you need for a supercharger?
There are several sizes you can use. If your car is mostly stock go with a 3.4″ or 3.5″ pulley. To be able to use a smaller than 3.4″ there are other mods that need to be done.
How big of a pulley do I need for a GTP?
To add more boost to your supercharged GTP all you need to do is change to a smaller pulley. There are several sizes you can use. If your car is mostly stock go with a 3.4″ or 3.5″ pulley. To be able to use a smaller than 3.4″ there are other mods that need to be done.
How do you replace a supercharger pulley on a GTP?
Clean the inside of the new pulley with very fine sandpaper and grease the pulley and supercharger shaft. Now install the pulley tool “bolt assembly” with washers. Also install “your belt clamp”. Now just tighten the bolt to press on the new pulley.
What is the step up ratio for a supercharger?
They have a 3-to-1 step-up ratio internally from the supercharger drive sprocket to the driven (impeller) sprocket. EXAMPLE: A Powerdyne BD Supercharger is equipped with a 3″ pulley and mounted on a motor that has a 6″ crankshaft pulley.
There are several sizes you can use. If your car is mostly stock go with a 3.4″ or 3.5″ pulley. To be able to use a smaller than 3.4″ there are other mods that need to be done.
To add more boost to your supercharged GTP all you need to do is change to a smaller pulley. There are several sizes you can use. If your car is mostly stock go with a 3.4″ or 3.5″ pulley. To be able to use a smaller than 3.4″ there are other mods that need to be done.
Clean the inside of the new pulley with very fine sandpaper and grease the pulley and supercharger shaft. Now install the pulley tool “bolt assembly” with washers. Also install “your belt clamp”. Now just tighten the bolt to press on the new pulley.
They have a 3-to-1 step-up ratio internally from the supercharger drive sprocket to the driven (impeller) sprocket. EXAMPLE: A Powerdyne BD Supercharger is equipped with a 3″ pulley and mounted on a motor that has a 6″ crankshaft pulley.
How big is the supercharger on a GTP?
Then locate the snout of your Eaton M90 or M112 supercharger and the belt that goes around the pulley. The stock pulley on a Pontiac Grand Prix GTP is 3.8″. By putting on a smaller pulley you can force the supercharger to spin faster and produce more boost and hp. The stock boost rating of my M90 is 6 lbs (pounds).
How to change the oil on a Grand Prix GTP?
Also remove the engine oil crankcase filler cap. Then locate the snout of your Eaton M90 or M112 supercharger and the belt that goes around the pulley. The stock pulley on a Pontiac Grand Prix GTP is 3.8″. By putting on a smaller pulley you can force the supercharger to spin faster and produce more boost and hp.
Where is the idler pulley on a Pontiac Grand Prix?
The larger 3.5″ smooth supercharger idler pulley is located just above the crank shaft pulley (lowest & largest) and slightly closer to the front of the car. To remove the 3.5″ SC idler pulley, place the 15mm socket and long handled wrench on the pulley’s bolt.
How to remove the supercharger belt on a Pontiac Grand Prix?
The supercharger belt must be removed first on GM 3800 Series II engines equipped with the Eaton M90 Supercharger. If you have a naturally aspirated GM 3800 Series II engine (L36), skip down past the next block of text. To remove the supercharger belt, place the 15mm socket and long handled wrench on the supercharger tensioner pulley.
Where is the tensioner on a Pontiac Grand Prix?
Place the 15mm socket and long handled wrench on the supercharger tensioner pulley (just below the SC pulley and towards the front of the car) with the other hand. Push the wrench towards the front of car to relieve the tension on the belt. Slip the SC belt over the SC pulley. Double check the routing and fit of the belts.
What’s the torque on a GM Pontiac Grand Prix?
Torque it down to about 50 Nm or 37 lb ft with a torque wrench. I tightened the bolt snugly and then turned the wrench another 1/8 to 1/4 turn.