I never claimed it to be a "good thing to do", I just mention it as a possible tweak. In fact I do NOT recomend it to the average Delorean which will run just fine set to stock specs. Easy to check with a fuel pressure gauge set-up. In this case we are discussing possible ways to continue to use the K-Jet with a modified engine which will have a higher fuel delivery demand. In fact, I did say he should, at this point, consider removing the K-Jet and going with an EFI system. Getting shims is no biggie, washers will do and trial-and-error will get you to the right pressure, that and a pressure gauge. Just not as easy as an EFI system. David Teitelbaum vin 10757 --- In dmcnews@xxxxxxxxxxxxxxx, "John Hervey" <john@...> wrote: > > David, Yes, And where are you going to get the shims and what size how are > you going to get and how are the test results with out the equipment and > when do you know when its to much or how much. > Then what are you going to do about fuel going back to the tank now that you > have increased fuel flow. The FV is going to get rid of it because there is > more. So the purpose is defeated via the FV / Lambda system. > The injectors are fine as they are it's the FD that has to be modified to > gain the results that are needed. > John Hervey > www.specialtauto.com > > > -----Original Message----- > From: dmcnews@xxxxxxxxxxxxxxx [mailto:dmcnews@xxxxxxxxxxxxxxx] On Behalf Of > David Teitelbaum > Sent: Tuesday, March 27, 2007 7:51 AM > To: dmcnews@xxxxxxxxxxxxxxx > Subject: [DML] Re: Performace fuel system > > By shimming the spring on the Primary Pressure Regulator you can > increase the pressure a little which would increase fuel flow. I know > it isn't much but it IS one of the tweaks that can be done to increase > fuel delivery. Other more radical mods would be to change the notches > or the plunger inside the fuel distributer or even changing it to a > model that flows more fuel. Changing the injectors could also help if > necessary. The main problem is it is a mechanical system. To make > tuning changes you have to either modify or replace actual parts. That > is the most impressive feature of an EFI. You can adjust it all kinds > of ways without even getting your hands dirty! > David Teitelbaum > vin 10757 > > > > [long quote trimmed by moderator] > To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/dmcnews/join (Yahoo! ID required) <*> To change settings via email: mailto:dmcnews-digest@xxxxxxxxxxxxxxx mailto:dmcnews-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/