Search is down. I wanted to know if anyone knew how to tell if I have a t3 or a t4. The part numbers I have on it are 6776H, also ptb 600-1550, and the turbo housing numbers are THGT2-76. The ar is 82 and I also see cch67. Thanks for any help.

 

i forgot, it's also a 4 bolt exhaust.

 

Check the turbine inlet flange that connects to the manifold. That will give you your answer. That turbo came in both turbine housing configurations. The T4 is more "square" and wider than the T3

 

I have a t3 manifold on my car and I measured it and it is 2.5 by 4.5. But I was told that it was a t4, and it measures 2.5 by 4.5. That is where I'm confused.

 

Forget the wastegate port in the following pic, and you can see the two patterns. The smaller is the T3, the other is T4.

 

A picture is worth a thousand words, post it and we will tell you what you got.

the 6776 is a 67mm compressor/p-trim turbine in Precision lingo, and I have never seen a .82 T4 frame but the .63 and .82 are the 2 AR options for the T3/P-Trim housing.

 

With the 4-bolt flange and a .82 A/R hot side i'd almost bet my life that it's a T3

 

Oh, if it's a .82, it's definitely a T3. Dunno how I missed that.

 

You guys are the truth. I do believe in fact have a t3 by the pics and very helpful info. Saved me from buying a new manifold. Thanks!!!!