How figuring Plenum volume and runner length/size

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805moparkid

805moparkid

Slant and AFX Guy
Joined
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two things

equation for figuring out plenum volume for a given engine c.i. and rpm

and also runner length and size/dia
 
what are the numbers @ .050 for the int closing and then whats the advertised/running for the duration, thats what they want and yes it what rpm range do you want to motor to be able to rev to, I rev mine till don't make anymore power and basically won't rev anymore..know what I mean?
 
1wild&crazyguy said:
what are the numbers @ .050 for the int closing and then whats the advertised/running for the duration, thats what they want and yes it what rpm range do you want to motor to be able to rev to, I rev mine till don't make anymore power and basically won't rev anymore..know what I mean?
Click to expand...

so which one do i use lol... figring chry formula

Engine Pro - Intake Port Length is 17 inches
Gordon Blair Formula - Intake Length is 9.35 inches
Simplified Chryser Formula - Intake Length is 14.00 inches
Simplified Chryser Formula (with bigger cam) - Intake Length is 13.38 inches
Simplified Formula - Intake Length is 13.20 inches
Simplified Formula 2 - Intake Length is 16.32 inches
Simplified Formula 3 - Intake Length is 15.40 inches

Intake Plenum Volume is 443 cc's
 
I like the middle of the road chrysler number.

but longer runners ...aimed at lower rpm torque/hp peak, cam considered

shorter-aimed at higher rpm torque/hp peak
 
1wild&crazyguy said:
I like the middle of the road chrysler number.

but longer runners ...aimed at lower rpm torque/hp peak, cam considered

shorter-aimed at higher rpm torque/hp peak
Click to expand...

a given... but yea i like our chry numbers to...

my message should help you with where im going with this...
 
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