Which high flow turbo outlet?

[572ysc]

I am looking into deleting the factory style warm up valve and also add the non EBPV pedestal in the near future.

My truck (00 Excursion, 7.3, 4x4, 35's, 8600lbs) currently has the following mods:

3.5" downpipe, Banks muffler, AFE Stage 2 intake, Banks Quick Spool (1.0), Banks Compressor wheel (Anti-Surge), and Superchips Tuner.

Here is what I have been looking into:

(1) The oem style garret housing offered by riffraffdiesel (2.75"):
Riffraff Diesel: Garrett GTP38 High Flow Outlet

(2) Or the Turbonetics oversize housing (3.25"):

http://www.riffraffdiesel.com/mm5/me...X1-TRB-TOUTLET

[572ysc]

Just noticed that the oversize housing is actually made by turbonetics.

[572ysc]

No input from anyone?

[blderman]

I just ordered the garrett outlet. I couldn't see how the extra .5" would make a big difference on a stock turbo.

[7.3Lariat]

I went with the Garrett when I put my 38R in. Happy with it.

[572ysc]

Thanks for all the info. I was originally gonna go with the turbonetics one but was concerned about a loss in exhaust velocity. Also the sealing area seemed to be a little less. So now I will probably just go with the garret unit.

Thanks again!

[vorderma]

Well, if you do the math, the 3.0 inch Garrett unit has a cross sectional area of 7.065 square inches and the "turbonetics" unit with it's diameter of 3.25 inches has an area of 8.292 square inches. Your exhaust is 3.5 inches so unless you have a restrictive muffler the turbo outlet will be the most choked point past the drive wheel on the turbo. The other outlet would have given you an additional 1.227 square inches of exhaust flow. I wasn't aware that exhaust velocity was particularly relevant in a turbo motor. Apologies if I am incorrect, however in the next year or two I will be picking up a 3.25" to go on the upcoming gtp38r. I have found someone who sells them new for $119.

[ande6009]

"I will be picking up a 3.25" to go on the upcoming gtp38r"QUOTE

Up and coming new turbo????
ANy specs or HP/torque ratings?
Will it improve with stock injectors?
Recommendations on aftermarket injectors vs reliability

ADHD is starting to kick in....oh look a squirrel

[vorderma]

Upcoming as in, when I have the cash or find an amazing enough deal I will be buying one. There is a lot of information regarding turbos and injectors.