Small or Regular 16G?

[TheBoosted96GST]

okay....i know..i know.....yet another 16G post. I've been searching for hours on here as well as all over the net. I just need someone to confirm this turbo part number, the turbo 49178-05200, I've read various posts were they say this is a "16G" then I read other posts were they say this is "Small 16G" sooo what is it? lol i've been reading for hours hearing people say its one or the other can someone please confirm? thank you in advance

[silvreclips]

49178 - 01420 = Big 16g
49178 - 01520 = Small 16G
49178 - 01470 = Evo III 16g

I believe those are right. Anyways you have a small 16g.

[TheBoosted96GST]

ya i know the part numbers for the big and evo, but the small p/n is "01520" mine is "05200" i'm pretty sure it's a small 16G too but I was just wonderin if anyone could confirm from the p/n oh well, i'll just measure Inducer and Exducer, to make 100% sure what it really is. Thanks anyway

[damnslowtsi]

Yes, it is a small 16g. Some of those digits, either 5 or 2 is stamped rather than cast into the housing, right? I 've seen it done that way.

[TheBoosted96GST]

ya excatly, basically it's "0 casted (then a circular punch) and stamped in is 520, then 0 casted" alright cool, I haven't seen it done before thats why I was asking about what it could be, thanks

[jusmx141]

Regular (Small) 16G....unless someone machined the Small 16G cover to accept a larger wheel. I had two turbos at my shop last summer that would appear to be Small 16G's from the outside....a measurement of the compressor wheel showed they were both 18G's.

A Small 16G will appear to have a "step" in the compressor inlet, like the one in this photo:



If the housing's machined to fit a larger wheel, the step will be missing like this 20G:

[TheBoosted96GST]

thanks for the pics, ya it looks just like the 1st one, i'll just end up pulling the compressor off and measuring this next week when I install it. Thanks again