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Message: [QUOTE="kyle43335, post: 614897, member: 270"] ding ding ding. cc of fuel is the same. 350cc conven, or 350cc hybrid. shorter stroke,bigger bore, vise versa. its still adds up to the same cc for a given area. the difference is with a hybrid you increase the diameter of the amplifier piston, instead of increasing stroke(which make a conven so oil hungary). now the amplifier piston size is no longer 7 times smaller than the intensifier piston. injection ratio isn't 7:1 anymore. 4000 psi hpop x 7 = 28,000 psi of nozzle pressure with a hybrid your ratio maybe closer to 5:1. 4000 psi of hpop x 5 = 20,000 psi of nozzle pressure. now you can see what this does to atomization at lower icp. spray pattern isnt nearly as strong down low. even at max icp with the lower atmo, the use of spray is needed to clean up the fuel thats being squirted into the cylinder at low pressure, versus being sprayed in at higher pressures. before anyone says anything about injection pressure. gm, and ford bolth using the same cp4 pump that makes 30,000 psi of pressure. this is down from previous years where 26-28k was the norm. [/QUOTE]

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