CLASS RACER FORUM - View Single Post - to vacuum pump, or not to vacuum pump, that is the question?

Mike Pearson · 09-28-2007, 04:03 PM

unless you are using a ring combination with very low pressure you will be wasting your money. get away from the alchohol it creates alot of wear in the top of the cylinders. Your motors will last much longer on gasoline. Run the car on the lean side and you will not get as much ET variation. If your car has a hood scoop block it off and pull the air from around the engine this will lessen the change in et due to temp change. in the .90 classes you are not looking for every last HP as we are in Super Stock

09-28-2007, 04:03 PM	#5
Mike Pearson VIP Member Join Date: Mar 2007 Posts: 2,419 Likes: 598 Liked 1,885 Times in 564 Posts	Re: to vacuum pump, or not to vacuum pump, that is the question? unless you are using a ring combination with very low pressure you will be wasting your money. get away from the alchohol it creates alot of wear in the top of the cylinders. Your motors will last much longer on gasoline. Run the car on the lean side and you will not get as much ET variation. If your car has a hood scoop block it off and pull the air from around the engine this will lessen the change in et due to temp change. in the .90 classes you are not looking for every last HP as we are in Super Stock __________________ Mike Pearson 2485 SS