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Engine Calculator v 1.2

This page will calculate lots of values for an engine configuration that you enter. This is useful for determining the size of turbos, injectors, exhaust piping, intercooler piping, etc. It also gives you an idea of what affect better heads (better Volumetric Effiency), higher boost pressure and other factors have on horse power output. Values by default are for 6a13 2.5L V6 24V DOHC Engine. 8G Mitsubishi Legnum VR-4(ec5w) or Galant VR-4(ec5w).

Inputs: 
Displacement (L):
Number of Cylinders:
RPM (at redline):
Weight (kg):
Boost Pressure (psi):
Wanted AFR:
Ambient Temperature (c):
Under Hood Temp (c):
Ambient Pressure (psi):
Volumetric Effiency (%):
Turbo Effiency (%):
IC Effiency (%):
IC Pressure Loss (psi):
Fuel Rail Pressure (psi):
FPR rate 1:
Current Injector Size (cc):
BSFC:


Air Temperature and Flow: 
Turbo Outlet Temp (c):
IC Outlet Temp (c):
Intake Air Flow (cfm):
Mass Air Flow (lb/hr):
Mass Air Flow (lb/min):
Air Flow per Turbo (cfm):
Total Exhaust Flow (cfm):
Air Density (g/cf):
Density Ratio:

Pipe Size:  
Single Int. Pipe (inch):
Dual Int. Pipe (inch):
Single Exh. Pipe (inch):
Dual Exh. Pipes (inch):

Fuel: 
FP under max boost (psi):  
Fuel Required (cc/min):
F/Pump for AirFlow (lph):
F/Pump for Injectors (lph):
Rec.Inj.size (cc/min):
Current adj. Inj. (cc/min):
Injector Duty Cycle (%):

Horse Power Estimates:
Estimated BHP:
Estimated WHP:

RPM Table:
#1 RPM AFR Boost VE TE BHP
#2 RPM AFR Boost VE TE BHP
#3 RPM AFR Boost VE TE BHP
#4 RPM AFR Boost VE TE BHP
#5 RPM AFR Boost VE TE BHP
Average: AFR Boost VE TE
Performance: FOX LRT HALE
ET 1/4
MPH 1/4
0-60 mph

Please keep in mind that this is a rough approximation, and can not take all factors into account. Use your judgement when selecting components, and do not blindly follow this page.

PS: This EngineCalculator was originally saved from BulletproofPerformance website, but it seems like it's no longer available from that place, so I decided to put it up for those who needed/missed it :) Can't have it all to myself :). Added a few features and left most of the original stuff as it was.

Any comments or suggestions, please send to valmes@mail.ru