phunk

I did make 586rwhp @9psi returnless with E85. I had a mild feed line upgrade, but I did not have the return portion. I do have the CJM S2SE return system now, but not when I was on the dyno. When I was running returnless, I did have pressure drop. I cannot remember now how much it was, but it was clearly there as indicated by the gauge in the engine bay, which we could see on the dyno. Since I watch my A/Fs like a hawk and have the ability to readjust my tune as required, pending changes in weather, etc... I just dealt with the pressure drop and accommodated it as required.

edit: I should stress/imply that it is not recommended to run it how i did. those of us in the industry are often willing to take greater risks with our personal cars. i will run my own car in a state that i would never give back to a customer.

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