Question about meter calculators

[spudman029]

Hey all. I used to be a regular member of the spudtech forums. After being out of the hobby for a while, I've decided to rebuild my old propane combustion (it was a complete failure). Unfortunately, I've forgotten most of the information(lol). It's been a long time. I remember there being an online calculator for propane combustions in regards to chamber volume and atmospheric pressure. I've searched for the link to no avail. Can anyone point me in the right direction?

Thanks
-aaron.

[SpudBlaster15]

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[spudman029]

Thanks for the formula. What is 0.042? And still, does anyone know of the online calculator from the old spudtech forum?

[fireman565]

Here's some of the Calcs listed in the 'Other' section of Spudfiles listed at the top of the page.

[spudman029]

Ah. There they are. Ratcalc and Fueltool from Burnt Latke. Thanks.