On Tue, Sep 29, 2009 at 3:44 PM, Al Knoll <anasasi@gmail.com> wrote:
..... > More expensive options include upgrading gearing, tires and wheels and > brakes, and the pollution device, the legendary wasserp*sser engine, with > its 1980s engine management technology. > > What if you could improve your fuel economy by 30%? You get 24mpg instead > of 18mpg or so. A motor with a modern engine management system emits far > less pollutants on a bad day than the WP does on it's best day. If your > fool consumption drops by 30% so does the pollutants per mile. er ah 'fuel > consumption' it should be. .... > What else does the group.wisdom think would improve our sorry lot?
Part of the reason I installed a "newer" engine was to reduce emissions. Driving Test Results of old air cooled: HC: 48/182 allowable CO: .44/1.73 NOx: 2055/2139 Driving Test Results of VanaJetta: HC: 28/182 CO: .15/1.73 NOx: 360/2139 Idle Test of old air cooled: HC: 121/409 CO: 1.13/4.59 Idle Test of VanaJetta: HC: 34/409 CO .01/4.59 Here's the thing. In the stock configuration, my air cooled didn't require a cat. I'm guessing, but pretty sure that installing one (for swap) made a big difference. So for those w/o a cat, if it's not cost prohibitive, I'd suggest that adding one might really help. Best part, in a way, was the the old engine saw new life in another Vanagon. Don't know if that owner installed a cat though.... :) Neil. -- Neil Nicholson '81 VanaJetta 2.0 "Jaco" http://tubaneil.googlepages.com/ http://groups.google.com/group/vanagons-with-vw-inline-4-cylinder-gas-engines |
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