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

Paul,
We saw this vid before.

But worth to watch it again.

Paul Workman · 12-27-2008

Quote:

Originally Posted by HADI-ZR1

Paul,
We saw this vid before.

But worth to watch it again.

Umyeah, I know. I was using it as an illustration for what Bob G (and others) have said and experienced re the characteristics of the LT5.

P.

ZR-1 Franz · 12-29-2008

Hello from Switzerland,

I really love fast cars, especially fast Corvettes and fast Chevrolet's.
I also love to watch videos with fast driving ZR-1's. But, this kind of
action should never happen on public roads

, on race tracks only .
This is what I am thinking about it.

Have a good day,

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.

12-27-2008	#2
HADI-ZR1 Guest Posts: n/a	Re: 2 vs 4 valves video Paul, We saw this vid before. But worth to watch it again.

12-29-2008	#4
ZR-1 Franz Join Date: Aug 2005 Location: Solothurn, Switzerland Posts: 144	Re: 2 vs 4 valves video Hello from Switzerland, I really love fast cars, especially fast Corvettes and fast Chevrolet's. I also love to watch videos with fast driving ZR-1's. But, this kind of action should never happen on public roads , on race tracks only . This is what I am thinking about it. Have a good day, __________________ ZR-1 Franz, '90 ZR-1 # 982 Red/Saddle (Manual Control Air Conditioning)