Enter the peak torque RPM into the Intake Runner Length Calculator. The calculator will evaluate the Intake Runner Length.
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Intake Runner Length Formula
The following two example problems outline the steps and information needed to calculate the Intake Runner Length.
IRL = 17.8 + ((10-PT/1000)*4.3)
- Where IRL is the Intake Runner Length (cm)
- PT is the peak torque RPM
How to Calculate Intake Runner Length?
The following example problems outline how to calculate Intake Runner Length.
Example Problem #1:
- First, determine the peak torque RPM.
- The peak torque RPM is given as: 4000.
- Finally, calculate the Intake Runner Length using the equation above:
IRL = 17.8 + ((10-PT/1000)*4.3)
The values provided above are inserted into the equation below and computed.
IRL = 17.8 + ((10-4000/1000)*4.3) = 43.6 (cm)
Example Problem #2:
For this problem, the variables required are provided below:
peak torque RPM = 5000
Test your knowledge using the equation and check your answer with the calculator..
IRL = 17.8 + ((10-PT/1000)*4.3) = ?
