What can I do with 115 octaine fuel?

[OneFastEclipse]

With my currrent mods and the ported 14b turbo, how much boost should I am at running with 115 octaine fuel? I recently found out I can get this stuff right done the road from my house. Thanks!

 

[crankbender]

assuming the correct tuning you should be able to wind the 14b out. That said i would keep it at 21 or lower and pay really close attention to my EGTs and AFR.

 

[hostile]

You can run 24 pounds easily... except it might drop down in the higher gears.

 

[OneFastEclipse]

Don't I need to replace my head studs before running 24lbs?

 

[dsmturboawd]

youre asking the wrong question.

just keep upping the psi until you get too many knock counts.

 

[OneFastEclipse]

So your telling me my head won't lift with that much boost?

 

[dsmturboawd]

head wont lift? huh?

 

[Keaka26]

when running a lot of boost, it is possible for the cylinder head to lift off of the block, I doubt it would in this case.

If you're scared, then get ARP headstuds.

 

[greyforestgst]

id say around 20

 

[hostile]

That might be true on other vehicles, but I have never seen it. And I have seen 30psi on the stock bolts.

 

[Enigma_Man]

I personally have run 20 psi on a stock fuel system with 116 octane, and very little knock, and no resulting problems from it. That's a good place to start with anyway

-Jesse