Actual RWHP for new Z/28?

[gmen09]

Originally Posted by Number 3

A pretty solid performance and probably driver aided from practice and experience. Just not sure how a Z/28 beats you and your car by another .8 seconds with 300 pounds being the only advantage.

If you want a drag car that is what the COPO was built for. The Z/28 was built for the less straight track.

11 second car only means it is running somewhere in the 11's that phrase doesn't mean 11.00 on the time slip.

[davidcroft]

3 things that the Z/28 has going for it vs other factory production LS7s.

1. the cold air intake.
Even though the accordian tube is still going to be restrictive, it has an open element air filter with a heat shield.

2. EPS
Electric power steering has shown some impressive gains over '12 SS LS3 cars.
My '13 LS3 car baselined 19 RWHP and 22RWTQ over my '12 SS. Same dyno except the '13 got dynoed on an even warmer day!

3.Exhaust
That View of the LS7 that shows the 427 Camaro injector covers definitely has a tri-Y design manifold or shorty header. Waaaay different than the cast iron manifolds that come on the LS3 and LSA cars. If that manifold/shorty header design makes it to production that will help tremendously over previous manifolds.

Those 3 things will make this LS7 more powerful than previous production LS7s. If they rate it at 505 and 470 it will be underrated.

[CGM2SSRS]

Originally Posted by Doc

The Z/28 is being built for fast drivers, and 300 lbs is not the only advantage. The Z/28 also has less unsprung rotating weight on the axles so it takes less hp to get rolling. It probably has better aerodynamics. But then it's SPECIFICALLY designed and configured for road course so whatever it may do in the 1/4 is a dining table statistic and of no real interest to its intended market.

Don't argue with Doc about unsprung weight....lol...