2 vs 4 valves video - ZR-1 Net Registry Forums

Paul Workman · 12-27-2008

Bob G and I were discussing the differences between the 4/cylinder vs. 2 valves/c relative to torque curves/hp differences. The jist of it of the conversation was that the flatter torque curve will often overcome more (peak) hp advantages in other engines, and how (specifically) the combination of flater and higher RPMs really makes our ZR-1s shine in the face of greater peak hp.

This video doesn't exactly show a true comparision, but it caught my eye b/c it is so obvious shows the ZR-1s characteristics when running against a reasonably equal (peak) power/weight 2-valve car. Every time the C5 shifts, the Z "runs" out even farther. Interesting. See what you think.

http://www.youtube.com/watch?v=qQZy1...eature=related

P.

12-27-2008	#1
Paul Workman Join Date: Nov 2007 Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri Posts: 6,493	2 vs 4 valves video Bob G and I were discussing the differences between the 4/cylinder vs. 2 valves/c relative to torque curves/hp differences. The jist of it of the conversation was that the flatter torque curve will often overcome more (peak) hp advantages in other engines, and how (specifically) the combination of flater and higher RPMs really makes our ZR-1s shine in the face of greater peak hp. This video doesn't exactly show a true comparision, but it caught my eye b/c it is so obvious shows the ZR-1s characteristics when running against a reasonably equal (peak) power/weight 2-valve car. Every time the C5 shifts, the Z "runs" out even farther. Interesting. See what you think. http://www.youtube.com/watch?v=qQZy1...eature=related P.