Turbo LS Horsepower Test! E85 Ethanol vs Pump 93 Octane (What's The REAL WORLD HP Difference?)

In todays installment of science...my turbocharged Yukon
XL aka Uncle Rob is thrown on the Dynojet rollers for science once again. This time with a brand new Deatschwerks fuel pump capable of supplying the boosted 5.3 with proper amounts of e85 ethanol fuel! In the last video we dyno tested uncle rob on pump gas 93 octane and got some pretty consistent numbers to use for actual data comparison. Today we load it up with E85 Ethanol and test it again with the SAME BOOST LEVEL just to see how much power it is actually worth through the timing increase and lower intake temps!
UNCLE ROB SHIRTS!
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