Originally Posted by Rigsby
I love both stories (wazup & fastvega) about the budget motors & cast bottom ends (and stock 305 rods) in motors running in the 10's & spinning 7K to 8300... that is awesome!! Gives us hope & courage to build on a budget with results!! Of coarse- like wazup says within reason & balanced well.
my motor was balanced and no noticeable vibration at all and 100 pounds of oil pressure going do the track... 45 pounds at idle :wink: i was told by a few old racer/motor builders including the man that builds my motors ... that for every 10 pounds of oil pressure...you can spin a motor 1000 rpm's.... i like to leave a buffer zone and never fully tested their theory..... lol they say the crank/rods fail when the oil barrier between the two fails and you get metal on metal.... it made sense to me and they been racing long before they had all these aftermarket parts now days
