The standard Pistons are 5 x 1.3mm and will probably be ok, but somewhere like stotfold i had drilled my fronts to 1.4mm and the rears 1.45mm 40wt front 30wt rear. Im still testing the new tapered pistons from Nick Gurnell on here.. As ive gone to indoor mode now,this piston set up was ok.. but will be trying 4 x 1.3mm front and 4 or 5 x 1.4mm rear i think! Same oils.. but maybe loose the rear roll and go longest links all round. (inboard)
I run the Green Yokomo springs at the front and Kyosho red at the rear.. I also run the rude bits spine weight 60g
Hope this helps... drop me a pm for any info etc
Nick
13-10-2011
KYOSHO
Threaded Mode