Date: Sun, 26 Oct 1997 10:25:46 -0700 From: Will Wood To: mwest@CDSNET.NET, type2@bigkitty.azaccess.com Subject: RE: Hot-rodding the Fuel Injection Mike Wrote: Anyway, the two critical areas in Electronic Fuel Injection are fuel delivery and information feedback. Systems like the Berg Haltech and CB Performance system require in the car tuning sessions or mounted dials and switches to compensate for the lack of feedback to the system. This has the advantage of custom tuning to the drivers preferences, however the best advice would be to use the sensors that were intended with the system. I myself have done a few experiments with Rabbit EFI systems on a Type I motor. It works great. But when you start getting into bigger motors, fuel flow and delivery become critical, i.e., injectors start getting too small and the fuel pump can't keep up with the demand (of course using a stock electric fuel pump). Last one I did was a Turbo application in a Sandrail, the EFI was "free", but we wound up putting about $400 in upgrades, new lines, new pump bigger injectors. We also went through about three different O2 Sensors that would work with the higher exhaust manifold temp that the turbo produced. But it did and still does work. This thing (1776, Berg Crank, VW Rods) with the Turbo roosts for days, Boost is limited to 10 PSI, but it doesn't ping and is very responsive. I have a couple of Rabbit systems still hanging around here, I think I'm going to do some more experiments this winter. Maybe a 1600 but with higher boost characteristics. I have a Mitus. Turbo that I bought at a recent swap - $75 - Woohoo instant low buck power. BTW, you're still working with an Aircooled Platform here, so heat dissapation and how much fun you can have depends upon your willingness to let the engine operate within effective cooling parameters. A Turbo on an Aircooled VW Engine will overheat the engine, very quickly. The difference betwen a couple of pounds of boost can me intake charge temps soar, so heat in = heat stored = not so much heat out. I also use intercoolers. (find them out of old trashed saabs or Volvos..). Will Wood KdF Service and Supply 801 731 3360 801 732 1250 Fax.