Finally got my 6.4 time slip :-D

mopar65 said

Wow that's awesome. Congratulations on the new bests. Sorry if I missed it, but what compression are you running? I am wanting to switch my dakota over to E85 but at only 11.1. I don't know if that's enough compression to justify to cost from switching from 93 pump gas to E85.

Click to expand...

This motor is 13:1. I decided to lean into the e85 a little when I built it, since it can handle more compression. The previous motor I built was only 10.8:1 and started out as a premium pump gas motor, but when I converted it over to e85 it picked up a tenth if I recall correctly (might be 1.5 tenths....I don't remember).