Obviously I know I can add more timing however I was wondering from you guys that have done it roughly how much more timing can be run when switching from 93 to 100 octane? I have 10gal of 100 octane in the garage and well I dont want it to go bad so I think ill have to go to the track and use it

 

Straight 100 Octane ??...you can probably see 3º-4º of additional timing easily

 

Yes Straight 100 octane. So for the track should I just add maybe 3 degrees to the whole table and make a run and watch KR.

 

Yep...you may get away with more in places....

 

probably would depend on the whether conditions when you had your tune and the weather it is now....if its colder than when you had your tune done, you can get more

 

Well I just re did my tune today, so similar weather conditions. When I am at the track I will also be tuning as well.

 

I had some powermist laying around (110 octane) that I cut into my 1/4 tank of 93. I used about 1 gal of the 110. I added 2* with no KR whatsoever. That net just about 0.15 in the 1/4 mile run.


BTW, I had no cats at the time.