Hello,
I am trying to use my megasquirt MS-1 V3 system to convert my car engine to run on CNG. I have been looking for options of different CNG injectors I could use but have run into some barriers. First, what would be the best way to calculate the fuel flow rate I would need for my engine? Then, where could I find different injectors for CNG that could fullfill these fuel flow rate specifications from my calculations. Any insight is greatly appreciated.
Thanks,
Sam
CNG Fuel Injector Calculations & Options
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Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0).
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
Re: CNG Fuel Injector Calculations & Options
Well I don't have experience with CNG but I do with injector calculations, so take a look here if you belong to the Apple crowd:
https://itunes.apple.com/us/app/efi-mat ... ?mt=8&uo=4
or here if coming from the Android gang:
https://play.google.com/store/apps/deta ... athandroid
I don't know if this works for CNG but take a look.
https://itunes.apple.com/us/app/efi-mat ... ?mt=8&uo=4
or here if coming from the Android gang:
https://play.google.com/store/apps/deta ... athandroid
I don't know if this works for CNG but take a look.
Re: CNG Fuel Injector Calculations & Options
Hello,
This app is great but I not specifically tailored to natural gas so I can get an injector size but not for natural gas. Thanks for the thought though I will try to compare this apps calculations to mine so far
This app is great but I not specifically tailored to natural gas so I can get an injector size but not for natural gas. Thanks for the thought though I will try to compare this apps calculations to mine so far
Re: CNG Fuel Injector Calculations & Options
Don't know if you still need this...
Calculate your required flow for gasoline (using mass) and multiply times 14.7/17.2.
You can run a leaner AFR, but you need to utilize a high compression ratio to make any good power.
Calculate your required flow for gasoline (using mass) and multiply times 14.7/17.2.
You can run a leaner AFR, but you need to utilize a high compression ratio to make any good power.