Rocker arm ratio4/13/2023 ![]() Good rollers are nice but increase the cost alot, so some folks choose the accelerated wear option.Īny benefit derived from doing this ratio change would be dependent on what the rest of your components are capable of with it and what the actual state of tune is before and after. For example, a standard small block Chevy rocker arm is advertised as having a 1.5:1 ratioit’s actually closer to 1.44, But I digress. If you go non-roller, wear can become an issue. The rocker arm’s ratio actually determines the maximum amount of total lift you will receive at the valve from a given camshaft. Regarding the need for rollers at this point is debateable. ![]() And, keep in mind it's not just TDC to be concerned about as just after TDC, the intake valve chases the piston down the hole as it is just beginning to re-accelerate. With a change like this, you need to be sure that as the piston(s) are in and around TDC that the new valve positions have proper clearances to your pistons. ![]() Shaft Mount Aluminum Roller Rocker Arm Kit: Chrysler 1.5 Ratio. The increase in ratio not only increases lift but also accelerates the valve off the seat that little bit more also. Shaft Mount Aluminum Roller Rocker Arms: Chrysler 1.5 Ratio. Therefore the change to a 1.725 ratio yields 0.589" peak lift for your cam.
0 Comments
Leave a Reply.AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |