Quote:
Originally Posted by KingLT1
Good chance you will never see full 85% ethanol at the pump. It normally ranges from 65-80% unless you buy the high dollar C85 out of a Barrell.
93 octane will not work at this power level without meth. He will also lose power.
He would be better served to lower the boost and keep running E85 for the street. Switch to race gas with a different tune for track mode.
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Exactly.
I like running on e85 where I can run lower boost levels and still have really crazy power. Running on straight pump e85, it's generally been around 70% ethanol. I can run 12psi on that setup with no mixing of fuels...
This last test is to see if 14-15psi finds the limit. We do know that with MS109, we will get into the 800's for whp. That would be my "track tune".
For the street, I would feel completely comfortable running the 8psi pulley (85mm) and running either 93 or e85. Above that, I would want to run e85 or I would need to add methanol.
With this setup, I am very confident we could run 93+Alky and run into the 8's. I just HATE the idea of using Alky injection for octane purposes so I am pushing to stay away from it if possible.