96blackgt54 Posted July 9, 2017 Report Share Posted July 9, 2017 In a camshaft perspective its 8 functions. Most folks thought it was 4cycles. Welp, im gonna explain the 8 so read on! Exhaust open Blowdown Exhaust stroke Overlap Intake stroke Intake shut Compression stroke Expansion stroke In the list above...one of the cylinders of a V8 is doing one of those functions. Altering the timing of one of the functions greatly changes the engines caracter. Hp, torque, power band location change. Exhaust open is first camshaft mechanical Function. Blowdown is spent combustion bleedoff meaning exhaust pressure still on the piston as the piston reaches the bottom. Exhaust stroke is piston pushing the rest of exhaust out. Overlap is where intake valve opens while exhaust being pushed out. Intake stroke is piston pulling air in (or is the piston being driven to pull air in...hmmmm) Intake shut is critical to begin compression. Compression stroke, squeezing the mix Expansion stroke is pushing the piston. One can do the math of the camshafts technical points a derive how much the cam spends in limbo. Meaning piston not in expansion relative to the other 7 functions. Cause if you think about it, one piston in expansion has to make the other functions happen. Link to comment Share on other sites More sharing options...
96blak54 Posted September 22, 2021 Report Share Posted September 22, 2021 Wow This guy has great tech info. To bad he is gay Link to comment Share on other sites More sharing options...
Funstang Posted September 26, 2021 Report Share Posted September 26, 2021 On 9/22/2021 at 4:29 AM, 96blak54 said: Wow This guy has great tech info. To bad he is gay I hear he likes banging goats too! Link to comment Share on other sites More sharing options...
ttocs Posted October 30, 2021 Report Share Posted October 30, 2021 only male goats... Link to comment Share on other sites More sharing options...
