I was bored so I decided to make it easier for people to determine which turbo was best for their car. I Took the formulas off garrett's turbo tech 103 and made a spreadsheet to calculate the information for you. I also linked the outcome of the formulas to put a point on the given compressor maps to help decide which turbo is best for your application. If you guys like this idea, I can update it with some more common turbo compressor maps. Let me know your thoughts and ideas. Everything is greatly appreciated. Also post up some turbo's and a link to the compressor map if you want me to throw it in there.

Download my turbo calculator here


How to use it:

The first value is the atmospheric pressure at your elevation. For Example, boise's is 13.4. You dont need to worry about the first boost box. Input your desired HP number, AFR and BSFC. You can leave the BSFC at .55. That will output how much air is required to make that much HP. Then move down to the Required Boost section. You can leave the VE at 92 if you dont understand it. Set the RPM and engine size and your done. Check the other tabs to see which compressor works the best for you HP goals. You want to be as close to the center island as possible.


Duane

 

hmmm... link isnt working

 

You may need a gmail account and be logged into google groups. i just made the group to easily host my files for this. Although it works for me when im not logged in.