Most amout of boost on 93-94 octane?

[Turbo317]

i am curious what the most amout of boost you could run on 93-94 octane gas, safely??

 

[sixgun86gn]

Depends on the combo,timing,outside temp.Actually there is no all the time max boost for 93,but 17# is about as far as you might want to go.Bigger turbos and injectors,ported heads and such might help you be able to run 1 or 2# more.Every car is different.

 

[StageII86]

Every car is a little different. Invest in a good scantool that reads knock retard. Start with ~15psi and work your way up, keeping Knock retard under 2 deg at WOT in 3rd gear. Also, start w/ ~42 psi FP (line off) and add or reduce as needed in relation to KR.