S400

[juddski88]

Dunno. I'm one of the few folk around who have run both the Garrett and S400 of exactly the same size. The S400 ETT Airwerks with the 3.0 inducer and the GT4202R are nearly identical in measurements in all aspects. Yup, I took both apart and measured everything.

The Garrett will make 4-5lbs more boost, and be a couple tenths quicker in the quarter mile, with the same AR.

I like the S400 more for street, but the GT4202 gets the nod for the track, but not by much.

High Tech can get you a wide variety of S400 based chargers.

The reason you see small differences between brands on sizing is some catalogs measure the bore, others the wheel. That difference can be as large as .050" on some charger dims.

Pat, what about the GT4202 is it that makes it boost higher do you think? maybe there's another 3.0 S400 out there that can outperform the Airwerks, if so i'd like to know where, and for what, to start looking

 

[McRat]

Pat, what about the GT4202 is it that makes it boost higher do you think? maybe there's another 3.0 S400 out there that can outperform the Airwerks, if so i'd like to know where, and for what, to start looking

Airwerks is the Borg-Warner subsidiary that markets turbochargers for non-OEM applications. So S400 as far as we are concerned = AirWerks. Hybrids are hybrids, and there are always trade-offs. Most S400's folk claim are hybrids are actually just Airwerks part numbers, or swapping the cover and wheel with other Airwerks models if Airwerks doesn't list it as an assembled retail unit. IMO, a true hybrid is a charger that is custom machined to accept turbines or wheels that aren't listed as options for that chassis.

The GT4202R has two advantages, better high pressure ratio performance, and ball bearing design. The advantages of the S400 are price, and a wider map, which makes it a better street charger. Not that the GT is not streetable, it's just the S400 is more streetable, if that makes any sense.

I'm not intentionally beating the drum for either PPE or Garrett, just providing my observations based on experience with both as well as S400's.

 

[durallymax]

no the turbo wasnt hitting, havent even put that on yet, the pedestal was hitting.