jacobcartmill

iTrader: (6)

i bought this turbine housing and was told it was a turbonetics ptrim .81 tangential housing. not knowing how to identify a turbonetics turbine housing, i just assumed it was an 81, but while installing it, we noticed it appears to be a .68....

CrackHeadMel

iTrader: (2)

what the discharge dia? looks to large to be a .68

RacerXtreme7

iTrader: (2)

That would be a .68 tang undivided turbonetics turbine alright. Another bit of information for you, I'm not 100% sure because looking at photos can be deceiving, but it looks like your turbine has been "clipped".

~Mike..............

CrackHeadMel

iTrader: (2)

how else can you aproximate the a/r from aphoto? just been around long enough to tell?

jacobcartmill

iTrader: (6)

discharge is 3"

jacobcartmill

iTrader: (6)

.81 and .68 look very close in size externally. the only reason i'm questioning it is because of the ".68" cast into the inside of the inlet.

RacerXtreme7

iTrader: (2)

Because if you look at the picture, .68 is clearly stamped on the turbine inlet as it is in the majority if not ALL Garrett / Garrett based turbines including Turbonetics.

Turbine discharge diameter has not one thing to do with turbine A/R withen the same families (in this case T4).

Anything to say on the clipped turbine?

~Mike.............

jacobcartmill

iTrader: (6)

the turbo was a standard run-of-the-mill borgwarner t04b v1/v1 with a ptrim turbine wheel, so as far as i know, it was not clipped.