Titanium Valves in SS

Andrew Hill · 02-20-2018, 07:32 PM

Straight from the rule book, "The power-to-weight factor is the shipping weight of the vehicle divided by the advertised, or when applicable, the factored horsepower for the OEM-assembly-line cylinder heads. NHRA-accepted aftermarket cylinder heads carry a horsepower penalty that is calculated to the weight of the vehicle and does not change the class of the vehicle."

I'm not sure when this verbiage was added, but it's in the 2017 and 2018 rule books.

Edit: just realized this quote was already posted on the last page, oops.

02-20-2018, 07:32 PM	#15
Andrew Hill Senior Member Join Date: Mar 2008 Location: Chicago, IL Posts: 701 Likes: 446 Liked 170 Times in 38 Posts	Re: Titanium Valves in SS Straight from the rule book, "The power-to-weight factor is the shipping weight of the vehicle divided by the advertised, or when applicable, the factored horsepower for the OEM-assembly-line cylinder heads. NHRA-accepted aftermarket cylinder heads carry a horsepower penalty that is calculated to the weight of the vehicle and does not change the class of the vehicle." I'm not sure when this verbiage was added, but it's in the 2017 and 2018 rule books. Edit: just realized this quote was already posted on the last page, oops. __________________ 3207 D/SA, C/ED