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Old 03-24-2011, 03:41 AM   #20 (permalink)
gtkid2002
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Join Date: Feb 2009
Location: USA - WA
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The Bug - '69 Volkswagen Bug Base
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Quote:
Originally Posted by some_other_dave View Post
The later Type IIIs (like the Squareback mentioned above) used an analog electronic fuel injection system. The later Bugs (and Super Beetles) used a different version, also controlled by analog electronics.

I would recommend not using the original systems. They are quite primitive, all in all, and very difficult to tune and modify reasonably. I would consider something like SDS (Simple Digital Systems EM-4) or one of the Megasquirt variants. The latter requires you to learn a lot about how injection works and do your own fabrication and such

-soD
Well considering the SDS costs about as much as my last car.. I'm gonna have to hold off on that. I'm guessing a primitive FI system is better than a carb, but I might end up with a spare of each of those to tinker with if I play my cards right.

Botsapper - Thanks for the overlay. I didn't realize how close those actually came together. Granted one might be stretched a little more than the other, but they still seem to fit just fine.

Arragonis - I thought they were standard by '75. My bug has the plugs for the fuel pump up front at least, but I thought it was converted back to a carb.

My '80 Fiat has a Bosch Jet-tronic FI system I think, and as far as I know only the warm-up injector fails now and then, decreasing mileage.

Right now I'm gonna try for the FI system and run it stock, just to see how much an aeromodded body would help.
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1969 VW Bug - Daily Driver
1975 VW Baja - Current Project
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1989 Honda Prelude Si 4WS (RIP)
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