R Thomas

[QUOTE=BluePrintEngines;222071]Hey Orangehat

I was reading your post here with some enthusiasm because how you wanted a near daily driver Type 65 Coupe. That is so cool!!

Having built several old cars with and without carpeted interiors, I did have some ideas for heat and sound reduction in the car.

First, on heat reduction. Heat and sound reduction can be accomplished by using material like Dynomat, and other similar brands, throughout the interior of the car along with carpet. Not only would you want it on the firewall and floor, but put Dynomat in the doors and in the rear cargo area as road noise will come through both. Having it on the roof inside will reduce heat from the sun. Like others have said, tinting that big back window will reduce green house heat inside the car as well.

Getting fresh air in the car will help as well even if you are not running A/C. These cars have the footwell areas on either side of the transmission and the back of the engine which allows heat soak into the interior. In the old days of sports cars, like the Jaguar XK150's and XKE's, they installed cowl vents on the sides of the car to get cool outside air in there to keep your feet from melting. The old 1950's MGA didn't have this, and even in winter, your feet got warm. If there is an option for this, I would highly recommend it.

Under the hood, Ceramic coated headers and even wrapped headers will reduce the heat transfer to the body panels and the interior. The pictures posted earlier of the heat shielding on the engine side of the firewall will also help as well. Ceramic coated headers also reduce exhaust noise under the hood.

To reduce sound, something that hasn't been mentioned is how the engine is built. High compression and big camshafts will create louder exhaust note. Keeping compression to 9:1 and reducing the valve overlap in the camshaft timing will actually make the engine much quieter. You won't have the big, lumpity exhaust note, but compromises may be necessary for comfort and quiet. Keeping the duration at .050 below 230 and the lobe separation angle in 112-114* range will make the engine run smoother and quieter. Go bigger on the cubic inch to keep the power up.

Scott Liggett
BluePrint Engines
1(800)483-4263
[email]info@blueprintengines.com[/email][/QUOTE]