was wondering what the best octane and tune combo -vs- boost psi for the 5.4. I am not running long tubes, just mufflers, along with evo stage II w/ the 2.6 pulley and cj65mm TB. I have the 91, 93 and 100 tunes. Anyone familiar with any performance differences btw these 3?
Anyone 07-09 running stock Eaton SC with 2.6 pulley and 100 octane tune?
- Thread starter msouhlas
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They are likely just differences in total timing, plus MAYBE a bit leaner with the 100 octane tunes. Might pick up 20hp perhaps? I have a "Torco" tune on my SCT that I load occasionally at the drag strip. It is simply another 1-2 degrees of total timing (I can't recall) and I normally pick up about 1mph in the 1/4 mile.
thanks
There was some talk about how much hp a degree of timing would give, I forgot what was the number.
The stock blower isn't really efficient, it produces a lot of heat as you increase boost. If you're looking for more hp it'd be a lot better to swap to TVS.
Talk to your tuner he'll know the answer to your questions.
The stock blower isn't really efficient, it produces a lot of heat as you increase boost. If you're looking for more hp it'd be a lot better to swap to TVS.
Talk to your tuner he'll know the answer to your questions.
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