Quote:
Originally Posted by Joseph Davis
That being said it's going to be much easier to make your 2 liter fuel efficient than any FI car that will require boost to pull the vehicle up even mild hills. There is a lot to be said for the KISS principle. I take on a lot of odd projects, but I wouldn't even attempt yours for practical reasons. Better to spend your money de-stroking your engine or the like, would result in a more reliable and less expensive solution.
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Being a huge VW nut I have to agree, destroking it would likely be a much cheaper option.
My great idea is to get a 1.8 crank in my 2.0 (thus lowering compression ratio and decreasing to a 1.9L), give it the mildest turbocharger (A turbocharger accomplishes what you were thinking of in the original post, except all of the cylinders are going to be pumping for you), and then put it into a VW Scirocco 2 (lowest drag, ~1800Lbs, dirt cheap when thrashed) with 175mm wide tires (or narrower, if available). Possibly adding a Diesel transmission to the setup.
That rig was really a hot-rod Idea from me, the lower compression is just to add turbo boost, and the de-stroking would just result in a better revving engine.
Better to get a 1.7L motor and just use that with Diesel trans, they have 3.4 final drive (IIRC, not 3.89/3.94 like all the rest), if you want to be insane, the TDI 6-speed trans from a euro model is said to make for insanely low revs (~1500 @ 65), for a 4-cyl. But the cost: xxx-x,xxx
Check out a "truck cam" grind
http://www.techtonicstuning.com/show...artnum=109.07K (only for solid lifter motors?), this is said to deliver all the power from idle to 4,000. Pair that with a 1.7-1.8 motor and the Diesel trans and you would see a big deal.
Maybe a 1.6 crank is available for an ABA from a european car? You might need the pistons and rods though.
(I put a 2.0L 3A engine from an Audi 80 into my Rabbit Gti, it would roast the tires into 3rd gear, and still get 25mpg, while blowing the doors off of v8's
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I would investigate a torque tuned exhaust, a little smaller to get more torque.