Originally Posted by
hyper9boy
whats the minimum head shims u can run with a plus 4 on 25% i know a alpha team driver who recently just found out that the alpha can run with no shims hes testing it and said the motor has gain plenty grunt
can i do a squish test with lead
you can do the squish test if you would like but not really necessary with the nova engines as the machining on the blocks and head buttons are pretty consistent . you can run down to .65mm - .70mm for 25%
nova engines come with twox.30mm aluminum shims and one .20mm copper in most all the engines now . they have been shimmed for 30% from the factory for american market on most all engines produced now .
hope this helps
alpha engines head buttons are probably machined a little different i would imagine
