Originally Posted by
mxgregg
I just got tamiya blank 6 whole pistons . What size should I drill the holes and what weight oil for norcal running modified? I'm running blue springs all around.
1.3 on the hole dia.
Not sure on the oil. Hara ran 2000 at the WC but that's Hara ...
Do you have a part # on those Tamiya pistons ?
Thanks.