What is the most amount of power seen from straight 91 oct with no additives..just straight 91 oct, and what were the mods and boost levels??
HEMI ORANGE '09 Dodge Challenger SRT8
New build: 3.6L kenne bell, 148mm throttle body, Inertia 392 forged motor,Inertia big boost heads, SHR 1000hp transmission, inertia blower cam, 1400 DSS driveshaft, Fore dual pump fuel system, BB Dominator TQ converter, SP sway bars and lowering springs, OBX Long tube headers, Bassani midpipes, Flowmaster mufflers
DYNO: 731rwhp/635rwtq 15psi 93oct...Race tune: 875rwhp 17psi e85 gas, Daily Driver Tune: 830 rwhp 17psi e85 gas
Anybody? I kno there's people out here with 91 oct only puttin out big numbers, like 600+
Your tuner will be the biggest variable in designing the tune for your application. I have a 11:1 419ci and from time to time I run 91 octane. Have not noticed any more st knock than running 94 octane... Not sure of hp but im somewhere around 550ish.
Besides lots of guys on the west coast running big numbers, both NA and PA. Surely there running on 91 as well.
Stock catback, and stock drivetrain
Typing from a tablet, excuse typos.