Quote:
Originally Posted by elhigh
Hi, Zax,
I'm not familiar with boosted engines at all, I only know theory. I'm wondering if there are such things as underdrive pulleys for the supercharger that would help keep it out of the thirsty boosted zone? Pulleys aren't too hard to switch out (again I'm guessing, never having lifted the hood on a new Mini) so it wouldn't be a major pain, and you sound like someone who's both familiar with tools and not shy about wrenching on his car. That would be a completely reversible modification.
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UDP are often good ideas for performance, which as you probably know, usually help fuel efficiency in one way or another. A more efficient pulley system could have less parasitic loss, aka, less power wasted on a pulley and less fuel needed to do the same work.
Its unlikely this mod will quickly pay for itself, but you may be a fan of a mod that boosts power when you want it, and boosts FE the rest of the time.