View Single Post
Old 09-23-2011, 01:41 PM   #22
BRENT in 10-uh-C
Senior Member
 
BRENT in 10-uh-C's Avatar
 
Join Date: May 2010
Location: Eastern Tennessee
Posts: 9,815
Default Re: Milling a head for compression?

Quote:
Originally Posted by allison-tech View Post
Knowing my nature( I really should have 9 lives ) I'll be doing some combustion work soon, but 1st, I really like the fact that I can start my eng. w/a crank. Can ya'll still start your HC eng's w/the crank? I also don't want to shorten the life of the babbit, Terry made some good points to ponder, along w/all the other posts.

Lewis, I had a Model A race car once with a head that cc-ed out to about 7:1 compression ...and I hand cranked it to start that engine because it had no starter. Several of us have run A/B engines with upward of 10:1 CR on babbitt with no adverse effects. The downfall to babbitt (-or inserts) is detonation, ...not necessarily too much compression. I think that port work is not something you can gain on unless you have a flow bench and a manometer to see what you are actually gaining due to the siamesed port. More often than not, you will decrease flow when youstart messing around in there.

Wick, a lot of R&D for our bangers can be attributed to B&S kart racing huh!?!






__________________
.

BRENT in 10-uh-C
.
www.model-a-ford.com
...(...Finally Updated!! )

.
BRENT in 10-uh-C is offline   Reply With Quote
Sponsored Links (Register now to hide all advertisements)