[HellonFire]

Originally Posted by KA-T_240

According to the Garrett website S on the end reffers to a S-cover compressor housing. Which is made for high flow applications.

Ok, but there is NO GT2871RS.

This is what I found out, quoted from another forum.

Originally Posted by hellfire

Ok, well I'm not patient enough for you, so I did it myself.

I called Limit Engineering and Turbo's Direct as listed on the distributors section of Garretts site. They were the only ones open.

Limit Engineering said that the S specifically stands for the "Hose in, hose out" configuration of the turbo. Or also called "Slip Fit" Meaning it has no flange, like another turbo might have on the compressor housing, you can just use a coupler.

Turbo's Direct agreed with what Limit said, without me mentioning it. But also noted that he wasn't entirely sure that was all the difference and is going to call Garrett later and get back with me on exactly what it stands for. Because, if the S did stand for that configuration, then why wouldn't' the GT2871R and GT2876R also have the S because it is the same type.

So.. There you have it.

UPDATE:

Well, Turbo's Direct called me back. He talked directly to Garrett. This is what they said.

The S, was originally supposed to stand for a single port wastegate actuator. But, since most of the turbo's that they started making were only single port, they dropped the s, and never applied it. But then since the GT2860RS, was made specially for Nissan for racing, the designer of that turbo put the S back on there just to specify that it was a "Special" turbo. And thus, the only difference in the GT2860RS and GT2871R is the slightly larger compressor housing/wheel.

Tyler