1966 Mercury Comet Cyclone GT

[Paul Ceasrine]

The 1966 390/335 HP Comet Cyclone GT's hung around for awhile
1966 in C/S
1967 in B/S
With the National Records in 12.70 range.

But in 1968 (classed in D/S or D/SA) things got a little tough.
National Records;
D/S,,,,,,,12.39 @ 113.10 MPH
D/SA,,,,12.49 @ 112.50 MPH

pc

[Geerhead55]

Its a shame they came with such a small carb. Even if they had the 735cfm Holley it would've helped, although I'm sure a 750 or 780 would've been better.
Danny Durham

[Paul Ceasrine]

danny,

Correct on the 600 Holley, a bit undersized.

The #3778 700 CFM Holley, better suited for that engine,
With 1 11/16" primary and secondary throttle bore size openings,,,,,more GULP!!
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In the April 1966 Super Stock Magazine,
the editors gave the 1966 Comet Cyclone GT the 'Performance Award'.

They tested the car at Daytona International Speedway.
A 4-Speed car with a wide-ratio transmission and 3.50 gears.

Performance Results: 14.40 @ 96 MPH

[Paul Ceasrine]

1966 NHRA Winternationals;

http://66.154.44.164/forum/attachmen...6&d=1250462473

[Paul Ceasrine]

One of the great things about Super Stock and Drag Illustrated Magazine,,,,,,,,,,,,,

They listed possible Class combinations for the cars they tested.
1966 NHRA Classes,

[X-TECH MAN]

Originally Posted by Paul Ceasrine

danny,

Correct on the 600 Holley, a bit undersized.

The #3778 700 CFM Holley, better suited for that engine,
With 1 11/16" primary and secondary throttle bore size openings,,,,,more GULP!!
----------------------------------------------------------------------------------------------------------------------------------
In the April 1966 Super Stock Magazine,
the editors gave the 1966 Comet Cyclone GT the 'Performance Award'.

They tested the car at Daytona International Speedway.
A 4-Speed car with a wide-ratio transmission and 3.50 gears.

Performance Results: 14.40 @ 96 MPH

Ahhh yes but they can use the 428 CJ carb and the larger 428 cam that was never avaliable stock when new in todays stock racing.

[Paul Ceasrine]

Mr. X,,,

Todays Stock Class,,,,,,,,,,,,,,,,,,,not Stock,,,,,,
Not sure what it should be called,,,,,,,,

Maybe,,,,,,, Modified Stock,,,,,,,,or 'Trick Stock',,,,,,,

Remember the days when you could only use factory steel wheels on the car,,,,,,,,,and if you put on mag wheels, they had to weigh at least the same weight as the factory steel units.

pc

[X-TECH MAN]

Originally Posted by Paul Ceasrine

Mr. X,,,

Todays Stock Class,,,,,,,,,,,,,,,,,,,not Stock,,,,,,
Not sure what it should be called,,,,,,,,

Maybe,,,,,,, Modified Stock,,,,,,,,or 'Trick Stock',,,,,,,

Remember the days when you could only use factory steel wheels on the car,,,,,,,,,and if you put on mag wheels, they had to weigh at least the same weight as the factory steel units.

pc

How about "FUNNY STOCK" !

[Paul Ceasrine]

Mr X.

Funny Stock,,,,,,,,,,,,,,,,,almost,,,,,,,

How about,,,,,,,,,,,'HILARIOUS STOCK',,,,,,,,,,

hilarious;.......'extremely funny'

[Paul Ceasrine]

Performance Results;

Car Life Magazine, April 1966
Editor; Allan Girdler
Test Location; Carlsbad Raceway Dragstrip
Transmission; C-6 Automatic
Gears; 3.25
Tires; 7.75 x 14"
Results; 15.20 @ 90 MPH

Note: The Comet Cyclone GT came equipped with fabricated headers from the Southern California Mercury Dealership.

Headers; 1 5/8" primary tubes, 32" length, 10" collectors, with 3" openings.

Note: The collector caps were removed, and the test was performed with open headers.

Note: Shift points; 1st to 2nd (4800 RPM), 2nd to 3rd (4600 RPM).
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Hot Rod Magazine, October 1965
Test Location; Irwindale Raceway
Technical Editor; Jim McFarland
Transmission; 4-Speed, Top-Loader, Close-Ratio (2.32 / 1.69 / 1.29 / 1.00)
Gears; 3.50
Tires; 7.00" M & H Cheater Slicks on 14" rims
Results; 14.40 @ 99 MPH