Originally Posted by
rkhess
what are the pro's and cons? more runtime, more stress?...IDK just wondering my 3ptR is a little beast
anyone going to futaba challange? see ya there
Go to the previous page and click on the link in my post (second to last post), to the Massive Mods Shimming 101 article. All your questions will be answered.
Basically your changing the compression ratio. This can have good or bad outcomes depending on what else you do with nitro %, plug heat etc.