:::RHMT::: Real Home Made Turbo

General Category => Engine Management => Topic started by: 1991civicsi on May 14, 2009, 05:51:14 PM

Title: diificulty understanding fuel inj test results
Post by: 1991civicsi on May 14, 2009, 05:51:14 PM

What does the bsfc mean, and what do the numbers underneath it represent?

Title: Re: diificulty understanding fuel inj test results
Post by: ApexSilver06MR on May 14, 2009, 05:54:10 PM

ask the dude that did the injector service

Title: Re: diificulty understanding fuel inj test results
Post by: ApexSilver06MR on May 14, 2009, 05:56:24 PM

http://en.wikipedia.org/wiki/Brake_specific_fuel_consumption (http://en.wikipedia.org/wiki/Brake_specific_fuel_consumption)

Title: Re: diificulty understanding fuel inj test results
Post by: Joseph Davis on May 14, 2009, 11:13:25 PM

It means how efficiently the engine uses fuel.

Title: Re: diificulty understanding fuel inj test results
Post by: walter on May 15, 2009, 06:41:18 AM

so low numbers BSFC is better i assumme (easy) ;D

Title: Re: diificulty understanding fuel inj test results
Post by: onlyflash944 on May 15, 2009, 11:01:12 AM

Quote from: walter on May 15, 2009, 06:41:18 AM

so low numbers BSFC is better i assumme (easy) ;D

better?  not really, i wouldn't think of it like that.  lower bsfc means your engine uses less fuel than at places where the bsfc is higher

Title: Re: diificulty understanding fuel inj test results
Post by: Joseph Davis on May 15, 2009, 12:36:17 PM

Quote from: walter on May 15, 2009, 06:41:18 AM

so low numbers BSFC is better i assumme (easy) ;D

It's not uncommon for $$$ B-series turbo builds to make 0.38-0.40 bsfc, which is pretty astounding.  But you still get your ass handed to you by less efficient pushrod V8's with equivalent money invested.