What boost on pump gas?

[gixxer750]

8.5:1 comp ratio, stock cams with adj. cam gears, SS autochrome intercooler, full custom 2.5 hardpipes, 62-1 turbonetics bolt on, ported exhaust manifold, ported head, full exhaust, forged pistons, race prepped rods, fully balance bottom end, and the Comb Chamber has been deburred.

My tuner says no more than 15 psi.....

Correct for 93 octane?

 

[CPT Furious]

Probably pretty close. I've run 19 on 93 and my motor didn't lose the #4 cylinder until 160000 miles. This is over a 7-8 period as well...it was pretty rich also.

 

[91T breezen']

I think you can go higher, if you are tuned well. KWNate, runs 20psi, safe a/f's with 750cc injectors, and the big, nasty GT 4067 turbo!:naughty:

 

[malloynx]

i've been blowing 18psi on my 67mm.. all isfine

 

[gixxer750]

so.... I think I'm just gonna get a wideband and a cable to hook my laptop to my emanage and tune for 17 or so psi.... 4psi should make a good difference in power.