Didn't know if these might be useful, but I have been hacking some javascript code and building some simple Automotive calculators. Many of the same but really simple and most have Charting to help visualize the data. Carburetor Size Calculator Tire and Gear Calculator Tire Size Calculator Injector Size Calculator (Work In progress) Next will be compression ratio calculator Sandy
The Fuel Injector Size Calculator is pretty much complete as well as a new wire size calculator that helps determine the correct size for automotive wires. Here are the links - Injector Size Calculator Wire Size Calculator Sandy
Also just added a Speedometer Gear Calculator. It is simple but might be useful. Speedometer Gear Calculator Sandy
One more for the list, a wheel offset calculator that will help figure the offset when you change the size of your rims. It's nothing you can't do with a couple of rulers and a calculator, but here it is anyways... Wheel Offset Calculator
That could prove to be useful, I am going to be doing a 5 lug conversion on my car soon. Either 18" Bullitts or FR 500s haven't decided yet, but neither of them are going to fit like the ROH ZR6 16x8s I have now.
subscribe ....cool one that may come in useful that you may consider is Effective Compression ratio.. How to figure out your effective compression: (Boost / 14.7) + 1) x Stock Compression = Effective Compression So say that you are running 8.5:1 compression pistons. To get an effective compression of 18:1, you are going to need to run approx. 16.5 psi of boost. If you were running 9.5:1 compression pistons, then you would only need to run about 13 psi to achieve the same amount of power.
I have a number of calculators on my web site which might be of interest. Automotive Performance Software / Interactive JavaScripts Calculators Calculate Engine Size in Cubic Inches and CC's also Bore/Stroke Ratio and Rod/Stroke Ratio Calculate Engine's Compression Ratio (CR) or Total Volume Or Combustion Chamber Volume Calculate Change in Fuel Injector Flow from change in Fuel Pressure Calculate Size of Carburetor Needed in CFM Convert Airflow to a different Depression Calculate Port's CSA from it's Dimensions Calculate Port Limiting Velocity Estimate Horsepower from Intake Airflow Estimate Intake Airflow needed from Horse Power wanted Calculate Density Altitude and Dew Temperature (Point) Estimate Volumetric Efficiency of Engine Estimate 1/8 Mile Horsepower Requirements from MPH Estimate 1/8 Mile Horsepower Requirements from ET Estimate 1/8 Mile ET from MPH Estimate MPH - Km/H in Quarter Mile using Horsepower Estimate Quarter Mile Horsepower Requirements from MPH Estimate Quarter Mile Horsepower Requirements from ET Estimate ET for Quarter Mile using Horsepower Estimate Quarter Mile ET from MPH Estimate MPH from 60 foot time Estimate the Horsepower gain from adding Blower Pressure Calculate Speed (MPH - Km/H) given RPM, Rear Gear Ratio and Trans Gear Ratio Calculate RPM given Speed(MPH), Rear Gear Ratio and Trans Gear Ratio Calculate Rear Gear Ratio Needed
Here is the Effective Compression Ration Calculator. Hope it finds some use. I put up a couple of graphs to help visualize a range of boost and static compression ratios. Effective Compression Ratio Calculator Sandy
