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Twin Cam 1.9 Stage 2 Heads Flow Bench Chart

Port Flow Analyzer v3.0
Test: RP Stg.2
Folder: TC
Revolution Performance LLC

Performance Trends ©1999
This Report Printed:
9:54 am 10-22-08
Page: 1
Report of: Test Time Tested at Corr to No. Valves Valve Dia. Stem Dia. Port Area
All 1 9:47 am Int: 28" 28.0" 1 1.9" .31" .00 sq in
Cylinders 10/22/2008 Exh: 28" 28.0" 1 1.61" .31" .00 sq in
Port Lift L/D Range Test Pres Flow Pres Leak CFM Corr CFM
Int #1 .100 .053 5 27.97 16.40 .0 72.6
Int #1 .200 .105 5 27.91 33.30 .0 147.6
Int #1 .300 .158 5 27.96 46.20 .0 204.6
Int #1 .400 .211 5 27.96 56.20 .0 248.9
Int #1 .500 .263 5 27.93 58.90 .0 261.0
Int #1 .600 .316 5 27.90 59.80 .0 265.1
Int #1 .700 .368 5 27.93 60.50 .0 268.0
Exh #1 .100 .062 5 27.44 11.90 .0 57.2
Exh #1 .200 .124 5 27.96 21.80 .0 103.9
Exh #1 .300 .186 5 27.89 32.50 .0 155.1
Exh #1 .400 .248 5 27.92 38.60 .0 184.1
Exh #1 .500 .311 5 27.93 40.80 .0 194.5
Exh #1 .600 .373 5 27.92 42.00 .0 200.3
Exh #1 .700 .435 5 27.92 42.00 .0 200.3
Head File: Untitled
Head Comments: NA
Head Number 125 Customer RP Stg. 2
Intake Exhaust
Layout: 1 valve & 1 port Layout: 1 valve & 1 port
Valve Diameter, in 1.9 Valve Diameter, in 1.61
Stem Diameter, in .31 Stem Diameter, in .31
Throat Diameter, in   Throat Diameter, in  
Avg Seat Angle, deg 45 Avg Seat Angle, deg 45
Port Shape: Round Port Shape: Round
Port Volume, css   Port Volume, css  
Avg Port Diameter, in   Avg Port Diameter, in  
Avg Port Height, in   Avg Port Height, in  
Port Length, in 3 Port Length, in 3


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