>I had a 1989 Dakota (with the common-block 2.5 not the Magnum.) I >installed the "max-torque design" cam P4452763 and an adjustable >sprocket from FWD Performance. (Note: cam is for "slider" style >followers, not the rollers.) Made a world of difference. Wish I still >had that truck...
That would be the Fidanza one, correct? Did you use that performance cam initially without the adjustable cam spocket? I'm curious whether the performance was mainly increased by the cam itself or the sprocket. Still awaiting some feedback on any other upgrades like oversize pistons or milling the head... David >On Thu, Jun 21, 2012 at 12:40 PM, David Salamone ><shelbydo...@mindspring.com> wrote: >> >> Well it looks like the bottom end of the engine in my 1994 Voyager minivan >> is going bad and will need a rebuild. I initially thought it was just a >> headgasket going bad, but the significant oil blow back issue continued >> after the headgasket was replaced so it looks like one of the cylinders is >> going bad. >> >> It's original 1994 2.5 was replaced years ago with a low mile 2.5 EFI motor >> that came out of a wrecked 1989 Spirit. It's served me well over the years >> and I'm looking for some tips on not only rebuilding but adding some >> moderate enhancements while I'm having it done. >> >> I've got a good local turbo Dodge guy to do the work, and I was going to >> looking for some ideas on a good combination of parts & tips to make it >> reliable, durable and enhance the performance. It's currently a fairly stock >> EFI motor and I don't want to go through the significant expense & effort of >> trying to add a turbo & get it to work with 1994 electronics. >> >> When the cat went bad a while back, I used the opportunity to add a 2.5" >> exhaust with a Flowmaster muffler all the way back with (just for fun) a >> split set of dual tips coming out the back. The EFI manifold was only 2" so >> I might try to get the manifold opened up so I no longer have the >> restriction at the downpipe of going from 2" to 2.5". I've heard a good >> machine shop could open up the EFI manifold and make it work with a 2.5" >> donut & downpipe. >> >> Since I've got to do the bottom end, I was thinking of finally removing the >> balance shaft assembly. We also spotted an oil restrictor when we were doing >> the headgasket, I've heard it's good to remove those to improve upper oil >> flow. Thoughts? >> >> What about enlarging the cylinders for a larger set of pistons for improved >> horsepower? Any ideas on size & style? >> >> I think being an 1989 2.5 it's already got a roller cam. It was suggested to >> freshen up the valves since we were already there (for a better balanced >> package). Any thoughts on some affordable updates to the top end? >> >> We're going to be starting the work pretty soon so I'd like to get a solid >> game plan together. Thanks. >> >> David Salamone >> Positive Impressions >> shelbydo...@mindspring.com >> ___________REMOVE-FOOTER-WHEN-REPLYING_________ >> ShelbyDodge mailing list >> ShelbyDodge@imagilist.com >> http://www.imagilist.com/mailman/listinfo/shelbydodge > >___________REMOVE-FOOTER-WHEN-REPLYING_________ >ShelbyDodge mailing list >ShelbyDodge@imagilist.com >http://www.imagilist.com/mailman/listinfo/shelbydodge ___________REMOVE-FOOTER-WHEN-REPLYING_________ ShelbyDodge mailing list ShelbyDodge@imagilist.com http://www.imagilist.com/mailman/listinfo/shelbydodge
