hi,

i have just bought a turbo believed to be a gt3071r, but on closer inspection it isnt,

i measured the wheels with a vernier caliper and these are results:

hotside wheel: 56.2mm
Coldsie wheel: 53.3mm

it looks like a gt3071r coldside housing with the 0.50 A/r stamp and its T2 flanged
and its oil & watercooled

Any help appreciated

Dave

 

Its garrett by the way

 

those are the sizes measured with the housings on, i will take the housings off when i get home.

 

your information is a bit incomplete. You've only stated the inducer measurement of each. If you could, please relay the complete information as shone below.



That will help us a bit more. Thanks.

 

okay, i pulled the housings off and got the exducer measurements,
compressor: 71mm
turbine: 60mm

so it appears to be a gt30, can anyone work out the trim from those measurments?

thanks
Dave

 

comp trim 56.3, turbine 87.7 from your measurements (your measurements are maybe a bit off on the hotside exducer) but seems like everything points to gt3071r. what makes you think that it isnt? they come t2 flanged and internally gated

 

thanks for that,its externally gated and T2 flanged and i cant seem to find anywhere that sells them like that.