Quote:
Originally Posted by wisco95
the exception was that you keep the bore spread the pinto has. The mopar isnt close.
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Could we agree that both Esslinger and Stanton motors are purpose built race motors. Can any one think of a stock Ford or Chrysler part in either one of them.
They have created an almost bullet proof bottom end and are only restricted by an antique head design. In the 70's single overhead was cutting edge technology, today not so much.
Even Detroit has moved on to newer better designs. In the 70's if you told someone you were driving a car with over 200,000 miles on it and had never been inside the motor you would be called a liar, today 200,000 is the norm rather than the exception.
Head design and engine management have made giant strides in recent times but racers seem to be stuck in 1970's.
Before the invention of modern cnc machine tools, It would have been too expensive to design and build a DOHC 4 valve engine. Now they can design a new engine every few years or so.
Why can't racers do the same thing. If not for these tools the Stanton motor would not exist today.
Not only are 4 valve heads much more efficient at delivering fuel and air to the cylinders. They also get by with much smaller valves and smaller valves can get by with much lighter valve springs. The task of replacing valve springs every few races would be eliminated. The task of setting valve clearance every race would be eliminated. Valves stuck in piston heads would be eliminated. In short this would make a low maintenance race motor.
Considering that upkeep of the motor for a year is close to the cost of a new motor, this alone would bring the cost of racing down. Make a stock block and head rule and the cost would fall through the floor.
Honest Dad himself
