| [GMCnet] Longer sustained high speeds get very complex. And [message #360539] |
Sat, 05 December 2020 11:33 |
fbhtxak
Messages: 191
Registered: April 2006
Karma:
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Senior Member |
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Bob,
A most interesting story on that Yenko! Thanks much for contributing it.
Fred Hudspeth
Fred Hudspeth
1978 Royale (TZE 368V101335) - Tyler, TX
1982 Airstream Excella (motorhome) - Cooper Landing, Alaska
Message: 2
Date: Sat, 5 Dec 2020 15:46:02 +0000
From: Bob Dunahugh
To: "gmclist@list.gmcnet.org"
Subject: [GMCnet] Longer sustained high speeds get very complex. And
costly. (Subject title change )
Message-ID:
Content-Type: text/plain; charset="iso-8859-1"
I own a 69 COPO Yenko Stinger. Built from a Corvair. Is the only 69
Stinger ever built. Ford had GM build the car off of the production line.
As it was built strictly for off road use only. And couldn't pass any
emission, or safety standards. Then shipped to the Yenko dealership for
completion. Ford was developing a small race car. That required a 13-inch
race tire. That could run in the 130, to 140 MPH range. Ford didn't have a
car on 13-inch tires that could operate at those speeds. At just under 8,000
RPM's in 4th gear. It has an idle of 2,200 RPM's. Its power range starts at
5,500 RPM's. With no NOS, or turbo charging. Just 4 way over bored carbs.173
cubic inches. To build the cylinder heads with today's money. Would cost
about $28,000. The 4 carbs. $11,000. I've had it on the Talladega track
about 9 years ago. With an average lap speeds of 142.2 MPH. 138.4 with the
right window down. To listen to it next to the outside wall.
When I got it. I got an odometer statement from Goodyear showing 2234
miles. All these miles were run on Goodyear's 5-mile oval test track in West
Texas. At over 135 MPH. This was also the tire test car for the development
of the studded snow tire. It had 1/4-inch steel shields in each fender well
for these tests. With it's prominance. It has an estimated value of well
north of $500,000. But I still road race it on road race tracks around the
country. It's been written up in many books, and magazines. Been on the
cover of Hemmings Classic Car Magazine. May 2013. Our 78 Royale 403 is the
tow truck for the 24 ft enclosed trailer. That I haul the car in.
Bob Dunahugh
78 403 Royale
4 COPO Yenkos. Anb way too many restored convertibles in the collection.
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