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On Wed, 2003-08-27 at 20:40, Aaron Clow wrote: > > --- Jim Adney <jadney@vwtype3.org> wrote: > > > I love Bill Mahr, but this seems unlikely, simply > > because I think we now import > > more than 1/2 of our oil. It's possible, though, if > > we consider that not all of > > our import oil comes from the Middle East > > Yeah, I think that's the big qualification to his > statement... > > > I feel bad that my own type 3s don't do any better > > on gas mileage than they do > > Which brings me to another question... Jake Raby talks > of averaging 35mpg on his Type IV engine recently... > What follows are generalities that make me think maybe > I should eventually get a Type III that someone's > already taken the FI off (knowing it's heresy to do so > myself :) ) and drop in a Type IV: > > If people usually get 100,000 miles out of their > TypeIII engine at 25mpg, it would eat 4000 gallons of > gas over its lifetime. That's $6500 at $1.60 a gallon. > > Assuming you can get 200,000 miles out of a Type IV > engine (Raby says it's rare you even need an align > bore after 200K), the Type IV at 35mpg would eat 5714 > gallons of gas. That's 1714 gallons extra to go double > the miles, or $2742 more. > If he can get 200K out of a T-IV engine, I want to know what he is using for valves and guides. Type 4's ate valves worse than our engines. I wouldn't try to run an air cooled engine much over 75K without pulling the heads. Yes, the bottom end of the Type 4 is a lot better than ours, and it can be taken to a bigger displacements without stressing it as much. -- Russ Wolfe '66 FB MT '71 FB AT '65 Bug (not running) russw@classicvw.org http://www.classicvw.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org