higher boost more octane
#1
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higher boost more octane
Ok my question is this.. when boost is raised when do you need more octane to compesate?
couldnt you add a larger intercooler or a intercooler sprayer to keep temps down so you dont need higher octane?
or is it a set pressure you should use higher octane fuel.
pretty much is it boost dependant or heat dependant for use of higher octane fuels?
hope this makes sense!
couldnt you add a larger intercooler or a intercooler sprayer to keep temps down so you dont need higher octane?
or is it a set pressure you should use higher octane fuel.
pretty much is it boost dependant or heat dependant for use of higher octane fuels?
hope this makes sense!
#3
Red Neck Tony Stark - C2
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well it is temp but also how much pressure, basic rule of thumb is over 18psi need higher octane gas, some people run up to 22psi but they are over the edge.
If you want to run higher boost and not increase the octane is run a water/meth injection, the meth increases the octane some.
If you want to run higher boost and not increase the octane is run a water/meth injection, the meth increases the octane some.
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yeah i understand i was pretty much just askin a rule of thumb on it if there is one.. so i can have a half way guess what im allowed to do with pump 93 octane? and how to make the most of it without going race fuel.. or meth water injection.
#8
rotorhead
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I'll throw some numbers out there... from what I can see, most people with a medium sized single turbo (60-1, GT35, etc) won't go over say 14-15psi, and probably 13-17 degrees of leading advance with 8-12 split. That's on 93, AFR's between 11-11.5 at full boost. This is without any other type of water/meth injection.
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