I dont know about that, but the way it was done on 01860 was with a secondary fuel injection system, and a MAP sensor. When the boost comes on, so does the secondary injection system. Although that suplimental fuel injection system is not "stock", if this was a turbo-kit engine I would consider dumping the Bosh fuel injection system and replacing it with a EFI system that is "turbo aware". However, I want to keep the engine as stock as possible so no one shoots me. I get enuff complaints that I even drive the car! --- Donald Ekhoff <ekhoff@xxxx> wrote: <SNIP> > The mechanic suggested modifying the Bosch mixture > control unit by removing > the plunger and machining a little more taper into > the plunger such that it > flowed more fuel at the higher air flows encountered > at boost. Seemed > reasonable to me but before I attempt it I was > wondering if anyone on the > DML has any experience with the process. This would > be a irreversible mod to > a very expensive component. > __________________________________ Do you Yahoo!? The New Yahoo! Shopping - with improved product search http://shopping.yahoo.com