OOPS! Didn't realize that we were talking about gen II here...
-- -Josh 2000 Dakota CC 3.9L""RayB"" <bpracing@worldnet.att.net> wrote in message news:DHELJEKAGJCDGEGBEHHJKEHECMAA.bpracing@worldnet.att.net... > > > -----Original Message----- > > From: owner-dakota-truck@bent.twistedbits.net > > [mailto:owner-dakota-truck@bent.twistedbits.net]On Behalf Of Josh > > Battles > > I dunno...I've got the airaid intake and my performance went > > up...there's no > > heat shield, but when you're moving it gets hit by the outside air quite > > nicely. I even put a digital thermometer in there once to see what it was > > doing. > > > > -- -Josh> 2000 Dakota CC 3.9L > > > > Ok, maybe I'd better clarify this discussion on stock vs. aftermarket air > cleaners. On most Gen II Daks the factory air cleaner looks similar to what > you'd find on earlier carbureted engines. It's a round canister sitting > directly on top of the TB with a round air filter, approx. 10" dia. and > about 2 1/4" tall. It has a rectangular snorkel connected to a plastic tube > extending to the radiator support. If that is replaced with an open element > air cleaner with no ducting to outside air you will lose horsepower because > the engine will be ingesting hot air. On Gen III Daks there is an air hat > connected by duct work to a remote filter box which is supposed to draw > cooler air from inside the fender. (I hope I got that part right since I > haven't seen one for quite awhile.) Anyway, I believe it's similar to the > stock setup on my 2K Grand Cherokee, 4.7, except mine had a small tube from > the air filter box to the grill. In the case of my GC and Gen III Daks, an > aftermarket intake tube and cone filter may indeed be an improvement if the > filter is shielded from underhood heat and located where it gets a direct > blast of outside air. I have a K&N FIPK with heat shield on my GC and it > has shown a small improvement in performance and fuel mileage. HTH. > > RayB > http://www.dragtruk.com/ENTRIES/20KM1FD2KWBP.html >
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