d16forlife

So I got shafted on ebay by some ------- that sold me a fucked up turbo so I went to the junk yard today to see if I could find my self a T3. To my surprise they were having a 50% off sale on everything!So I pulled a Garrett Aireseach T3 externel wastegated with no side to side or in and out play off a Sabb.I was stoked! I found another Garrett with internal wastegate off another Sabb then one off a Volvo and pulled them both.I was EXTATIC!I figured i could sell the two others and keep one........................but when I took a break(after pulling turbos for 4 hours) I took my wire brush to the exhaust intake port I found TWO ------- CRACKS in two of the turbos .NOOOOOOOOOOOOOO!! Is this common or do I just have bad luck?

---- I was pissed.So I only walked out of there with the external wastegated one.
So now I have a dilemma .Do i sell my HF manni.and keep the externally wastegated turbo and get a custom manni. with external wstegate flange or do I sell the turbo and get an internally wastegated one that will work with my HF manni.................HeLP! ?

krAzy

heh took me 4hrs to get a turbo off a chrysler new yorker....never again, anyways...i say go back and find another turbo with an internal wastegate...imo

Tom-Guy

All T3's used for longer than four minutes have those cracks in the turbine housing. Nothing strange there, doesn't hurt anything.

d16forlife

I thought cracks were weak points.they were pretty deep and wide.since they come off a car with set boost could the the carcks go all the way through with higher boost/temp?

RENR

i would stay away from cracked turbos. youll loose pressure and who knows what else can happen.betyter luck next time

fiero_god

It really depends on where you want to go in the future. External is better for controlling boost ,you don't see internal wastegates on a lemans racer. Internal is good for average use ,i got a external cause i will be boosting a 6 and thinking of future upgrades. I think it would be cheaper for upgrades if you keep a external. But for now if you don't want to just buy a internal setup turbo. you can always upgrade that to a external one

d16forlife

The more i think about it I think I am going to keep the turbo I got and sell my hf manni.and get one with an external wastegate flange.Fiero -god you are right I have found that external wastegates are more acurate at keeping a set boost.Thanks.
The turbo is a Garrett with a .42cool side and .63hot side.Is this ok?

zcrx

Don't get a DRAG manifold. IMO they suck because the wastegate comes right off the #1 cylinder runner. It's better if the wastegate bypasses an equal amount of exhaust from each cylinder.

fiero_god

It should be good ,i don't see why not. Im just wondering about the lag cause that is bigger then my hotside ( T3 hot.60 cold.63 ) and im installing my turbo on a v6.

d16forlife

What do you guys think if I get a wastegate flange welded where the o2 bund is on my HF manniand move my o2 to the down pipe.That would put it right in the center.Ya think that would work?