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On 26 Aug 2003 at 10:39, Greg Merritt wrote: > > how does FI respond to engine modifications? is it adaptable? > > D-Jetronic uses a relatively indirect measurement of the amount of > air going into the engine, and doesn't take well to dramatically increased > displacement. I kinda worked thru this a couple of years ago and decided that if you did nothing else you should just up the fuel pressure by the same percentage that you upped the displacement. I'm sure that the OE system must have room for as much as a 10% increase, but above that is anyone's guess. It would be interesting, but painstaking, for someone to make the effort to try this. -- ******************************* Jim Adney, jadney@vwtype3.org Madison, Wisconsin, USA ******************************* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org