Garrett turbos

[Underdogpsd]

I got my truck from a guy who said it has a bigger turbo than stock. At the moment it has a 4inch dp to a 5 inch stack. A nappa 6637 air filter, boost gauge, egt probe is being hooked up soon as I find the time. Now with a bigger turbo at WOT shouldn't I make more than 11 psi at near 3k rpm? The turbo sure doesn't look factory. And from my research it looks to be a gt 38? im worried about the internals of it, it spools yet under load it smells like burning oil. Amd the soot in the stack could lube a fith wheel plate. Unlike other soot covered stacks I've handled. It blows no smoke, minus a occasional puff of blue. What's wrong with the old girl? It's only got 125,000 on it

[351fifty]

First you need to figure out what size turbo, is it intercooled aswell, and 11 psi isn't terrible with no tune, seems it turbo is burning oil too

[08spartan250]

you need to get a good look at the turbo. find out what it is first. it sounds like its leaking oil somewhere. are there tunes on the truck? if so, 11psi is way low. i can hit over 35. (with stage 1's)

[Underdogpsd]

How do I got about seeing witch turbo it really is? I'll try to link some pictures of it. The oil looks like its leaking down the turbo pedestal, everything it covered in greasy crap. And thats got a little golden color to it.

[campbellflage]

sounds like o rings

[08spartan250]

there should be a model # printed on it somewhere i believe. then just google that.

[Underdogpsd]

There's a sticker that reads. Allied signal automotive P/N 1831383c92 S/N cal38663 looking it up now.

[Underdogpsd]

Well to me the turbo, by looks bolt lay out. Sticker place ment. Looks just like a gtp38 turbo. Non intercooled. How do I make it stop leaking oil.

[campbellflage]

if its leaking from the pedistal the you most likely need these. Replacement O-rings for Ford Diesel Engines

[351fifty]

Upgrade to a 38r while your at it lol.