Percentage of horse power used in a 6 or 8 Cly Engine Valve train.

[Lenny123]

I need to know about how much horse power is needed to power either a 6 or 8 cly gas engins valve train.Both Intake and Exhaust valves. Say 4 valves per cly. I need this as a percent.

Lenny123

 

[pipehead]

No way to answer, how many cams, compression ratio, valves/cykinder, BMEP, spark v disel, and on...

 

[Lenny123]

Your right,I should have been more spcific with my question.
Theres a bunch of specs on this website for a small block V8 engine.

http://www.raceseek.com/chevy_v-8.htm

4 valves per cly using 4 over head cams.

If you happen to have the answer using another engine size, please feel free to post it here.

 

[pipehead]

What for? lossen the valve springs to save HP to the valve train, but suffer HP loss when valves "float". It's a trail and error game. Eventually you could run enough combinations to write your own equation taking into account springs, cam lift, rpm, CR, fuel....