Re: Mini R56 2009 Factory JCW HFS-3 Install (Cooper s owners too)
I think the .8mm will be a bit too much when running 50/50. You can try 100% methanol with that jetting and it my work depending on the tune and peak boost you are running.
You may need to drop a couple of jet sizes for 50/50, just my guess without more data on the car.
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