ZL-1, ZR-1, Z/28 at Nurburing

[Expunge]

One thing I noticed watching the ZL1 and Z/28 videos, down the long back stretch.. the Z/28 peaked at 160mph at 6000ish rpms. The ZL1 hit 172mph.

[Bhobbs]

Originally Posted by TexZr2

One thing I noticed watching the ZL1 and Z/28 videos, down the long back stretch.. the Z/28 peaked at 160mph at 6000ish rpms. The ZL1 hit 172mph.

That's because the long straight is a horsepower war. It was pretty obvious the ZL1 would reach a higher top speed.

[JusticePete]

Originally Posted by TexZr2

One thing I noticed watching the ZL1 and Z/28 videos, down the long back stretch.. the Z/28 peaked at 160mph at 6000ish rpms. The ZL1 hit 172mph.

Those Trofeo slicks do not hook up well on a cool and damp track. They are worse in the rain. As ridiculous as this sounds, the LS7 powered Z/28 gets a round a track fast, just like a SCCA Spec Miata race car. Straight speed is dictated by corner exit speed. Corner exit speed is dependent on mid-corner and corner entry speed. The Z/28 was much faster than the ZL1 in all measures of cornering speeds, on a bad track.

A cool overcast track is damp, or at least not as dry as the same track at the same temperature on the same day. It doesn't take much of a leap in logic to see the Z/28 exiting into both those straight at a higher speed. My guesstimate is easily 2 to 3 MPH, more likely 5 or 6 and possibly more. Where the ZL1 pulls the Z/28 by 12 MPH it can be cut to a 6 MPH difference.

I wonder that lap time Adam Dean could lay down on a 65 degree sunny day when he could wear out tires?

[2cnd chance]

Originally Posted by Sven59

We are not missing the point, we have enquiring minds. Putting the same wheels and tires and brakes would give a good comparison of the powertrain and aerodynamics.

So do it! They'll all be for sale by GM.

[Sven59]

Originally Posted by 2cnd chance

So do it! They'll all be for sale by GM.

Not on my salary lol!

[DGthe3]

Originally Posted by TexZr2

One thing I noticed watching the ZL1 and Z/28 videos, down the long back stretch.. the Z/28 peaked at 160mph at 6000ish rpms. The ZL1 hit 172mph.

I noticed that too, but I'm pretty sure that he was holding back on that stretch due to the rain, unless the Z/28 is somehow limited to 160 mph. The LS7 peaks at 6300 rpm sotheres at least a few mph left in its top end.

[Bosse'sBoss]

I stop the ZR1 video, to concentrate just on the Z28 VS ZL1. That Z28 is a monster on the track, probably only limited on top speed compared to the ZL1. Now I want to see the Z28 VS the '14 Corvette Stingray Z51 at Nurburgring. I can wait!!!

[JusticePete]

Originally Posted by Bosse'sBoss

I stop the ZR1 video, to concentrate just on the Z28 VS ZL1. That Z28 is a monster on the track, probably only limited on top speed compared to the ZL1. Now I want to see the Z28 VS the '14 Corvette Stingray Z51 at Nurburgring. I can wait!!!

The C7 is going to be close. The Trofoe tires on the Z/28 may be the time difference between the two. There are some that think the C7 will be faster.