BuddyClubctr
New Member
- Joined
- Dec 7, 2009
- Messages
- 561
Hello guys a friend of me tuned a b20 with b16b head high comp pistons and all the rest!! when he went for mapping if he tries more than 9 degrees ignition timing the ignition is knocking all the time!! the tuner said that his got excessive compression and he need either racing fuel or a different gasket that will lower the compression could this be right?? he did a tests and everything works ok on the engine no knocks no nothing