Determining BSFC map from logged OBD2 data

fumesucker Determining BSFC map from... 05-28-2008, 11:50 AM

samandw You'd need something to... 05-28-2008, 12:37 PM

fumesucker Acceleration is simply... 05-28-2008, 08:28 PM

palemelanesian I'm thinking your best bet... 05-29-2008, 06:24 AM

fumesucker You could get a lot of nice... 05-29-2008, 07:24 PM

fumesucker I had planned on collecting... 05-29-2008, 07:03 AM

palemelanesian Now that I think about it,... 05-29-2008, 07:44 AM

fumesucker You have to know what the... 05-29-2008, 07:52 AM

palemelanesian Do you need to know the... 05-29-2008, 10:08 AM

fumesucker A vacuum gauge will give you... 05-30-2008, 03:50 AM

theholycow I should hope not. Except in... 05-30-2008, 05:36 AM

fumesucker I was trying to be nice. :) 05-30-2008, 05:59 AM

theholycow I can't directly control... 05-29-2008, 10:38 AM

monroe74 Sorry I've been away for a... 06-04-2008, 10:04 AM

fumesucker Use OBD2 to log speed, tps... 05-29-2008, 07:18 PM

fumesucker I got my ELM327 in the mail... 06-10-2008, 09:23 PM

monroe74 That's an interesting... 06-11-2008, 11:02 AM

fumesucker I haven't had time to do any... 06-12-2008, 04:10 AM

theholycow One piece of data that may... 06-12-2008, 05:51 AM

monroe74 I'm really not sure. I think... 06-12-2008, 01:18 PM

theholycow Yup, my 2008 VW is almost... 06-12-2008, 04:10 PM

fumesucker I guess I'm guilty of... 06-12-2008, 06:19 PM

monroe74 The ranks of the financially... 06-12-2008, 06:50 PM

fumesucker I appreciate your kind... 06-12-2008, 08:24 PM

derangedhermit SG has a load (LOD)... 06-26-2008, 09:30 PM

05-29-2008, 06:24 AM	#4
palemelanesian Registered Member Join Date: Apr 2013 Posts: 364	I'm thinking your best bet would be to do several runs, at 10% throttle, 15%, 20%, etc. Run from as low a speed as you can up to max rpm, choosing a gear that allows you to max out at a reasonable speed, so aero drag isn't a big issue.

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