Most of the stations seem to be 87, 89 and 91 I believe although since my car runs fine on base grade I don't pay that much attention. I'll start payihng more attention to what octane the 3 grades are though just to know for certain.

 

RenoEvo, after you install your stage 2 or 3 and get it dialed in, you should take it to Vishnu and have him run it on his Dyno. He is only 40 minutes from Sac. and it would be nice to have an apples to apples comparison. However, to be even more accurate you would need to do a baseline run before installing anything.

 

just to clarify
Thats with stage 4 right?

Yes, to the best of my knowledge.

I'm getting the stage 2 and the buschur flash. David, do you guys flash the ecu for specfic octanes because I use 91, 94, and race gas for when I go to the track.

I had my car tuned to race gas (118) and 23 psi. 110=drop boost to 21psi 100=19psi and 91 =18psi and add 15 points on the apexci to richen the A/F to high tens/low elevens. Thats the Buschurflash stage4 flash they ran on their Dyno (365 hp) NO 2wd vs awd dyno flames please :-). Or you can go the other way and use the 91/cal Buschur flash at stock boost and give about 1psi increase for every 5/6 points octane increase... This will yield lower overall HP (2-4%) but be safer because you will start with more conservative settings I think the over all tone to this is you should sacrifice boost to maintain timing for a given octane and if you do you make more power. This has worked for me through all 4 stages of the upgrade path. But please remember these stages Require all the parts not just some...