Originally Posted by
GT2871RBLUBIRD 
yea those look like promising numbers, im not exactly talking about a ''race'' setup, but looking at the differences in transitions in power between high octane pump gas with the gt2871r and the full on race gas tuning with gt2871r and the differences in octanes and power with the 2871r.
That is exactly what i explained to you though just not with a 2871 as the turbo in question.
Regardless of turbo choice, race gas allows a significant increase in timing and thats where all the power comes from. If you still ran 8.5psi but on c16 you could probably pull 295+ hp out of the same setup you just pulled 270hp out of just due to the ign timing.
You are at an advantage with the AEM. You just save the map under a dif .cal file name and when you want to run c16 or 109 unl or whatever you tuned the map for and just plug in the laptop and load the new map.
Then when you run out of the race fual you just put the 91 or 93 map back into the EMS and go to the pump.
Point is you will make alot more power at the same boost pressure with race gas because you will be able to tune alot more timing into it. Or raise boost pressure and tune in alot more timing and make alot more power.
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