Lol. What i would do is run less boost on 91octane. Its just to much for your car. I know it sucks i have never ran 91 but it seems it doesnt help.

 

When he says settling in that may be knock tables learning although I'd hope they aren't being forced to retard too much. I wonder if a small shot of alcohol injection would help? I always worry mixture distribution so I wouldn't use too much but it might be worth asking him about. It would bring down IAT and bump octane. The dyno graph does look pretty odd to me too fwiw. Could the car have lost traction on the dyno?

 

The dyno graph is around the same as the datalog. Power doesnt hit full until 4700rpm and timing is being pulled bad.

 

Is there a specific reason you are running 91 oct? Is a hard to get higher octane where you live? If not, you should switch to a higher octane.

 

California, they only seem to get the pee weak 91. Even out here in VA where I've gotten 93 all the time and 94 occasionally I've seen a WaWa selling 92 :-( Worse it looks like only one station win a reasonable distance sells E85. With all of the high performance cars being sold these days you would think 94 or higher would be more popular!

 

Ya I have the temptation to throw a 55g drum of the fun stuff in the garage.

 

I wouldnt if u live in cali.

 

why?

 

You get pulled over you will get in trouble. Someone on here had it happen to him on the 997.

 

It sucks that many of you live in California. Fast cars with crappy fuel. I can go down to my local Sunoco and buy 102! Crazy laws out there....

 

Have to ask, trouble for?

 

The guy that got in trouble on the 997 and ticket said it was illegal to have race fuel or any other modifications once passed emmisions.

So im guessing cali is a non smog state there coming down hard on people thats why they only have 91 octane as the high.

 

Interesting, and a little hard to believe (not doubting you, just the source). I'd be very interested in hearing that 997 story in detail.

We can actually buy 100 octane unleaded at the pump here in the Bay Area...I'm not confirming or denying that I'm running a blend or straight 100, but if I was it would be awesome ;-)

 

People are saying now cali is doing inspections no aftermarket parts including bov.

Heres some stuff i saw. California members: Passing emissions with aftermarket exhaust. Guess it depends on who you know.

 

Totally legal to transport. But in talking about storing at my house.

But not sure how you are suggesting if i get pulled over running race fuel I'm going to get in trouble.