Quote:
Originally Posted by Whjaxn17
It's only worth ~10whp NA. I see you've mentioned going TT since I answered and it's worth way more power there, or at least allows for more w/ a comparable safety margin. I'm not sure what you should expect to pick up boosted on E85 over 93 or 91, but Spooler or Hotrodz might could share some experience.
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If he's going to run 91 and e85, he'll pick up a lot more hp on e85. He'll be able to run a lot more boost on e85. With my supercharger, I get knock above 13psi on 91 and I can run 17psi on e85 with no knock and could go higher. My 91 hp number is 480, my e85 number 680. 91 octane sucks!