Originally posted by mav
Need tips from you guys.....
I have been running the 5port evo2 for mths with a added .01mm copper shim during breakin till now but not teribbly impressed with the low end punch.
No match for a nova rs12s5 or ns12s5 in all rpm range.... sigh.
This guy seems to prefer temp round 120-125degC to stay competitive using nova short turbo #6 plug with stock centax clutch on a mtx2,3 on 16/20 vs 43/47 gears.
Should i remove that shim to gain more low end? Or remove the carb restrictor?
What other tuning variable can i play with to get more punch without putting a hole in my pocket?
Thks ......mav
What % nitro are you using? Need to know to determine shim.
Ideal plug is Novarossi C7TGF or sirio S001720127
What pipe are you using???
AFM