my forged shortblock will be in within 2 months. i plan on running 10-12 lbs of boost. I also plan on installing a flip ship so I can switch between daily driving and race tunes. my question is, how much timing can I safely run on a 91 octane pump gas for my race tune and how much hp will i see for each degree of timing advance?

 

bump

 

First thing you need to figure out is do you want to be smog legal?Then figure out what kind of driving your going to do most>>>IE mainly street and occasional drag.Also where are you located?Makes a diff on what kind of pump gas you have access to.

 

i only have access to 91 octane. yes i need to be smog legal (moving to cali soon). my car is a daily driver and will be occasionaly taken to the track.

 

smog doesnt have a whole lot to do with it because you can always set your timing back down right before the test. and a regular dyno tune wont have anything to do with the low end which is where smog tests are run. i dynoed 403rwhp on 91 octane and am smog legal in california