High Speed Driving Days - North Weald 2025

[Invetterate]

I love the thread hijack of the North Weald action day thread to discuss drag racing. Personally I'm not one for dressing up as a woman and going for a run.....

Really?

 

[teamzr1]

While on high speed events and DRAG
Fine line of top speed, lift, drag, downforce, over or understeer

Over the years of racing my Corvettes, either gained or lost top end solely on choice of angle of rear wings on my Corvettes
by the angle I had set the rear wing and the height of a wicker on the rear of the wing

There is a point of creating downforce to gain MPH or wrong angle of wing creating too much DRAG
Take some time and learn about all this very interesting results
Also as to drag, with my 1994 Snakeskinner ZR-1 we found that a certain shape of the side rocket panels reduced drag and car gained top end and also the angle of rake of A-pillar for windshield reduced drag and gained even more top end speed

Let's Go a Racing . . . . .

 

[Roscobbc]

I find it interesting that early C3's seem to be transformed in terms of top speed with a simple lowering on the front to get the front end to sit-down and airflow go over the top rather than stock front ride height creating front-end lift which increases with speed........frightenly it seems!

 

[teamzr1]

Here is testing on same road, day, weather when my 1994 C4 ZR-1 was stock except adding a full rear wing
All that was adjusted was the angle of wing surface
Amount of downforce in pounds on left and bottom shows wing angle
First Test at 130 MPH, then added 10 MPH for each test to 180 MPH
Then what the recorded MPHs via radar by a cop, for each test I did

 

[teamzr1]

I find it interesting that early C3's seem to be transformed in terms of top speed with a simple lowering on the front to get the front end to sit-down and airflow go over the top rather than stock front ride height creating front-end lift which increases with speed........frightenly it seems!

Reason we lower our Corvettes, and best with under trays front and rear
C8s now come with a full under tray
Of course, best is with venting up front to reduce front end lift

 

[CaptainK]

Really?

Well ok, there was that one time back in the day, on a heavy night out. But I think I've found all the photos and destroyed them.....

 

[Invetterate]

Well ok, there was that one time back in the day, on a heavy night out. But I think I've found all the photos and destroyed them.....