ive met a few jerks on here. one got banned, and the other, well, i have better things to do with my time lol
01 is the change over year, my 01 has the powder crush rods, this is why i will never put a tuner on her.
leave it stock-ish and let her ride!
besides the switch from forged rods, the differences of the early and late PSD's the only thing that was really changed was the HPOP, and the turbo.
the HPOP had some degree change in the 98-99 era. i havnt had to mess with them yet, so im not too knowledgeable on them
but i keep seeing different degrees. i know for a fact that they are different from my 97's to my 01.
the turbos are majorly different.
as posted the 99.5+ turbos had smaller exh and 2x the size of the compressor housing.
as stated, this is why you hear them spool harder.
while doing work on that 89 F350, we deleted the old non gated TP-38 for the early 99 GTP-38
it has the same small exhaust casting as the 99.5 +, with the intake housing of the 94-97
the bellowed up pipes fit flawlessly and was 1/2 the price as the OBS up pipes.
i did opt for an EPBV delete pedestal because the turbo bolt design is different.
the 94-97 turbo bolts from the bottom of the pedestal, whole the 99+ bolts from the top
the only thing that was needed to be fabbed was the intake Y, he has no room for an inner cooler.
when using a inner cooler you wouldnt need this.
i did have to modify the cowl so that the wastegate would clear.
but this is a brick nose, not an OBS.
many claim they are the same, but im just not too sure about that.
after trying to fit the OBS crush pipe to fit in the brick with a PSD, it was impossible.
but i feel confident that i can fab up and squeeze a 3" round down pipe in.
pinch weld all flattened
in closing, when i picked up my 98 E350, i was pretty surprised that my 01 could not keep up with my 98.
the E350 even has 300k on the dial.
the 01 is pretty stock minus a billet compressor wheel, and new intake plentums.
if you want the bellowed up pipes, and youre thinking about a new turbo, i would look into using a 99+ GTP38.
just stay away from the powder crush rods.... not that they are bad, but i would have rather had forged rods...
EDIT: as i sit here, i keep remembering a few more differences.
and the intake plentums are different, i dont know what year, but the newer 7.3's were larger.
and im not to sure on the exact size, but i know they are different intake boot sizes.
the heads have the same casting numbers from 97 to 01...
this i posted along time ago.
http://www.oilburners.net/forums/showthread.php?70747-97-vs-2001-head-swaps
and of course, mechanical lift pump in the early PSD and e-fuel in the later years.
