# what is "Brake Specific Fuel Consumption" **URL:** \ **Category:** Canada Nissan Automotive\ **Created:** [April 29, 2009, 9:50pm UTC](https://forums.speedlife.net/t/what-is-brake-specific-fuel-consumption/150470 "2009-04-29T21:50:52Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![imported\_silvia](https://avatars.discourse-cdn.com/v4/letter/i/e79b87/32.png) [@imported\_silvia](https://forums.speedlife.net/u/imported_silvia)\ **Post date:** [April 29, 2009, 9:50pm UTC](https://forums.speedlife.net/t/what-is-brake-specific-fuel-consumption/150470/1 "2009-04-29T21:50:52Z")
I was looking at some calculations for figuring out injector size depending on engine build(# injectors, HP, etc…) and it wanted to know the Brake Specific Fuel Consumption. what is this and how do you figure it out? I will be googling it as well, but figured it would make for some interesting conversation. ---
**Author:** ![tercel\_drifter](https://avatars.discourse-cdn.com/v4/letter/t/a88e57/32.png) [@tercel\_drifter](https://forums.speedlife.net/u/tercel_drifter)\ **Post date:** [April 30, 2009, 1:46pm UTC](https://forums.speedlife.net/t/what-is-brake-specific-fuel-consumption/150470/2 "2009-04-30T13:46:35Z")
hmm i don’t know if this will help you but when dyno diesel engines we’d do (fuel pounds per hour)/(brake horse power) at different rpm’s… but i don’t think that will help you as we had gauges showing how much fuel were using… on a side note anyone have a job for 2 heavy duty mechanic? lol ---
**Author:** ![05fairlady](https://avatars.discourse-cdn.com/v4/letter/0/6de8d8/32.png) [@05fairlady](https://forums.speedlife.net/u/05fairlady)\ **Post date:** [May 5, 2009, 7:58pm UTC](https://forums.speedlife.net/t/what-is-brake-specific-fuel-consumption/150470/3 "2009-05-05T19:58:09Z")
come work at Mammoet !!! thats where i work and its dope!