Nhra releases 2017 rule book amendments

ss3011 · 05-31-2017, 02:12 PM

Most governors , or auto 1-2 shifts are based on output shaft rpm . Electronic shifts are based on engine speed . The difference is on good weather days a governor shift will appear to shift at a higher rpm , due to converter slip . Electronic shifts will shift at the same rpm regardless of the weather . Might be a problem trying to dial in a car if the weather changes during eliminations .

05-31-2017, 02:12 PM	#16
ss3011 Senior Member Join Date: Feb 2002 Location: Southeast Michigan Posts: 909 Likes: 70 Liked 239 Times in 114 Posts	Re: Nhra releases 2017 rule book amendments Most governors , or auto 1-2 shifts are based on output shaft rpm . Electronic shifts are based on engine speed . The difference is on good weather days a governor shift will appear to shift at a higher rpm , due to converter slip . Electronic shifts will shift at the same rpm regardless of the weather . Might be a problem trying to dial in a car if the weather changes during eliminations .