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I spoke with ESS's tuner who very strongly recommended that I run 93 octane. At my altitude 91 is what you get due to the thinner air. 91 would be fine with the regular pulley that ships with the kit but as I'm running a smaller pulley (see: higher boost) I needed to figure something out as mixing 91 and 100 octane was getting EXPENSIVE, the latter costing $9.50 per gallon. The new injectors have a fair amount more room up top so I'm running a couple gallons of E85 with each tank which will put me around 94 or 95.
I may put the original pulley on until the supercharger has broken in and until I'm feeling more comfortable that nothing is going to explode.
The gravel chewing noises these superchargers (all centirfugal except for rotrex) is cringe worthy.
I'll get to the Dyno sooner or later.
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