Sponsored Links (Register now to hide all advertisements)
Quote:
Originally Posted by Colorado Greg
Going that fast on a new engine doesn't sound like a good thing to me. They need to be broke in and have the rings seated before pushing them that hard.
I would check with your engine builder and get their recommendations on driving speed and duration of the break-in.
That being said, a stock Model A is said to have a TOP speed of 60mph. You might get a little more RPM with the counterbalanced crank, but without a grearing change or an overdrive, your not going to get much more speed. It is not a good idea to run the car at top speed for very long. Mine is all stock and it likes to run @ 45mph.
Also make sure you have the brakes to stop if you plan on going this fast!!!
|
I have found that brakes permitting the counter weighted crank is good for another 1000 rpm over the stock crank . I agree 45 -50 is a good speed for stock , but you should when broke in be comfortable at 55-60.Do not think that a counter weighted crank will make a race engine out of your model A. It only helps to keep down the vibration that hurts the Babbitt bearings at higher RPMs . It boils down to prolonging the life of an A that sees more miles than most week end parade cars. I`m no expert just learn from experiance. My 2 cents worth.