Bob's Resource Website


Avanti Auxilliary Cooling Methods and heat related items

If your car overheats, don't remove the thermostat to remedy the situation. This can cause the water to pass through the radiator too quickly to get cooled and you'll still have the same or worse problem.
When you replace the thermostat, first put it in a pan of water with a candy thermometer and heat the water to a boil. The thermostat should open within 5-10 degrees of the spec. Don't take for granted they all work correctly, even if it is new.

There is a proven product called 'Water Wetter', which has been discussed on the chat group. Adding this to your coolant will drop the ambient temperature by up to 20 degrees.

The Avanti II ( up to at least 1976) have 1 1/8" cooling ducts which attach to covered intakes below the windshield grilles and run from the air intake, behind the dash and terminate on top of the transmission tunnel under the console, in front of the shifter. When the car is moving; cool, fresh air is forced into these tubes and is then played on the steel shifter mechanism. The bottom of the shifter is outside the weatherproof boot and is exposed to the latent engine heat passing under the car. It is also in close proximity to the exhaust. This heat is absorbed and convected upward to the handle and radiated into the interior. The handle can get pretty hot...
Early Studebaker Avantis didn't even have a grill at the base of the windshield. These were added as the first run progressed and things got improved on.. So you may not have the capability of tapping the fresh air intake there, but you can be innovative and get it from somewhere else. It is very effective.

The rubber gasket around the hood MUST seal the lid when it is closed, at least so, at the area right in front of the air intake grilles, at the base of the windshield. Failure to 'hermetically' seal the hood will allow superhot air to exit the engine compartment and be drawn right into the fresh air intakes and into the passenger compartment. Sealing this area will add effectively to keeping the occupants, somewhat more comfortable.

Some vehicles came factory equipped with holes cut in the engine compartment to add a source for cooling air / act as a vent to exhaust heat. Of course, this can allow road debris to enter the engine compartment.

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These photos are from Bob Lyles 1978

Then there's the Saturn Air Dam. This has proven itself to be the one best solution to any model/year Avanti. The application is not obtrusive and significantly increases air flow across the radiator while moving.

Installation pics


Evans Coolant claims to be a super coolant that you don't mix water with and which has a very high boiling point .