People misunderstand octane rating for what it really is.and that is the fuels ability to resist lighting off on its own, before the spark even occurs. this is where very precise fuel and spark control of EFI has a huge advantage. trying to run on the ragged edge with a carb and distributor at these power levels is brave. My rule of thumb for using 110 fuel is anything that makes more then about 1.6hp per cubic inch. thats part of the reason power levels are being achieved today as what we unheard of not that long ago. Todays pump gas has ethanol in it, which helps reduce detonation due to the cooling effect the alcohol has on both the mixture and cylinder. There are countless race fuel formulations specifically tailed to specific needs, and one of the biggest benefits is the burn 'rate' of the fuel, something that becomes very important as engine speed increases and there is very little physical time to mechanically extract all the power from the combustion event. It cam with tow, street, street firm, performance, and. Im sure you have all seen where EGT's can go down when adding ignition timing. I have a d 2011 f250 and want to know about the different tunes my sct race tuner came with. Incorrect ignition timing can elevate cylinder EGT, essentially raising cylinder temps to then cause detonation. the higher the octane, the more of both it will tolerate. this is precisely what octane is all about, the fuels ability NOT to combust under these extreme conditions. we then compress the air and fuel making it more volatile and still expect it not to burn. we are injecting highly atomized fuel into a cylinder that is HOT, and we expect the fuel not to combust. We work with the trans to hold shift points slightly longer and really bring on the power in the 6.0. THE CUSTOM TUNING WILL REQUIRE A FUNCTIONAL EGR VALVE. but to understand why these two factors are important, look at what is happening in the cylinder. 6.0 Liter Tune Descriptions for Stock Nozzle Injectors: THE CUSTOM TUNE FILES DO NOT INCLUDE ANY EMISSIONS DELETES. Neither of these two factors are effected by ignition timing, ill get more into that in a second. high compression ratios, made even worse with forced induction Stolen and rebuilt- 2005 6.0 CC SB 4x4-SCT-ARP-Fass 95/150-O/D Alternator pully-GoGo intake manifold. There are two KEY factors that need to be examined that cause this condition.ġ. Erics xtreme street/race has been my favorite tune i have ever ran classified as a xtreme or race tune. This causes what we all know is known as detonation. Horsepower & +230lbs of Torque to your 6.4L Diesel On May 25th, 2007 SCTs stock 2008 6.4L 4dr. Click to expand.people misunderstand octane rating for what it really is.and that is the fuels ability to resist lighting off on its own, before the spark even occurs. The SCT EXTREME Race Package will instantly add +120 Rear Wheel.

6.0 powerstroke extreme race tune