The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Tach-nical question

ls1nova71 · 03-05-2011, 09:58 PM

I guess I should have told you that the tach resolution needs to be changed from 6 to 3., this will double the tach output. If you don't change this the tach will read half the actual engine speed. You have to have tuning software like HPTuners or EFI Live to do this though, but I'm sure you already knew that part.

03-05-2011, 09:58 PM	#3
ls1nova71 Registered User Join Date: Dec 2009 Location: Independence Mo Posts: 4,119	Re: Tach-nical question I guess I should have told you that the tach resolution needs to be changed from 6 to 3., this will double the tach output. If you don't change this the tach will read half the actual engine speed. You have to have tuning software like HPTuners or EFI Live to do this though, but I'm sure you already knew that part.