Upgrades and Aftermarket - 99 & up 7.3L EngineUpgrading or adding OEM or aftermarket equipment to your 1999-Up Super Duty or Excursion with 7.3L Power Stroke diesel engine. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.
this question has become pretty famous. There really isnt one better than the other, it is mostly preference. Some will come on here and tel u that the garrett WILL surge, which is not the case. Some have surged in the past, but it isnt a huge problem. The TN is a pretty good turbo from what everyone who runs one says. TN did have an issue in the beginning with someone in the production line not putting some necessary parts in it, and a couple of them got out to customers only to blow up within a few miles. TN and BWD did take care of them and replaced it for free from my uderstanding. TN and BWd will take care of u with the turbo Diesel innovations or ITPDiesel will take care of u with the Garrett BB. The Garret has a Dual BB Cartridge where as the TN has a single. Call the vendors and talk with ALL of them and then go from there. U realy cant go wrong with either turbo.
People will say one way or the other. I am going with a Garret but the TN have a great following also. Just pick your poisen. People say that the garret can surge although few people have had problems. The garret is more efficent and flows more air, and the garret has two ball bearings. But on the other hand the TN is said not to surge but flows less and has only one true ball bearing and one thrust bearing.
__________________ "Patrick Built" Engine is done.
99 F-350 6 Speed: Terminator HPOS, Scan Gauge, Custom Cam, R&R Rods, WOP Fire Rings, Fluid Damper, Balanced, Girdle, DI B-Codes, Reg Return, DI IC, DI Up-pipes, Southbend Con-FE, AFE Stage II, Autometer Sport Comp II, Garret 38R, H-11 Headstuds, FASS, Crower Valve Springs, Lots of Powder Coat, 35X12.50 Nitto Mud Grapplers.
One is a proven tow/performance turbo. The other is a proven tow turbo, performance is still to be determined (NO map information available) and it's still a fairly new turbo to the market).
preference.
facts about the two:
the map on the 38r shows the surge line farther to the right than on the TN, which explains why some have surged. ANY turbo will surge under the right conditions.
the TN is 61mm the garrett is 66mm - the result is the garrett flows a bit more air. the dyno comparison i was informed of (scheid) showed a 12 peak hp difference between the two (the garrett was higher). that was the old journal bearing TN.
TN has a ceramic BB on the comp side, the turbine side is journal bearing - that is how it was designed.
garrett has a dual BB center section.
both designs have their merits.
fwiw if you plan on going past 500whp, there is a high output version of the TN in testing that is supposed to flow more than the garrett - it uses some GT-K parts/F1 turbine wheel.
basically pick a vendor and go. i run a TN BB from BWD. they sell turbos from both mfgs. plenty of others sell the garrett with satisfied customers - DI, ITP etc.
lots of happy customers either way, so you won't go wrong.
yes it could.
the H2e and QSSB have a common pedistal/mount so any turbo with a T4i (L10) flange can mount to them.
for 450-500, a drop in would probably be the cheapest/simplest way to go.
From the info i have found the garrett flows more air hence why they tend to surge. If you use the 1.15 housing this will cure the problem but will slow the spool up time. I chose the TN BB because i liked the faster spool more than the few extra ponies on the big end. For me it was an easy decision, quicker acceleration and no surge VS slightly slower spool up and a few hp on the top end. Both are proven to be excellent turbos with slight differences.
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2001 F350 Lariat Crew Cab Short Bed (LOADED) With Compound Turbos, fully Built Cryo Treated Motor, R&R Rods, H-11 Studs, Terminator High Pressure Oil Pumps, Suncoast Trans, Detroit Tru Trac, Goose Neck Plate, GT4094 and GT4718, Conservative 230cc Hybrids (fuel mileage)
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: 7_3smoker</div><div class="ubbcode-body">what are my advantages with QSSB or H2E over garett or turbonetics? And 450-500 horse, 1000lbs is my goal. Could this be reliable too? </div></div>
Go Qssb so much better than the the bb turbos that are bolt on once you have the hypermax turbo kit lots of turbo's to pick from. I have a qssb but not on a psd I can say it is a good turbo that can take a beating.
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00 CC, LB, DRW, Black F350 4x4, 6 speed, lunar series Boost and EGT. DP tuner 6pos chip SBC clutch,fuel system. GTP 38R BB, by Diesel Inovations. Weld Typhoones rims, Tymar filter,CCV mod and TERMINATOR OIL.
97 CC, SB Green F250 4x4 5 speed, SBC clutch, F5 DP chip, Isspro boost, EGT.Stage II sticks, Tymar, CCV mod, TERMINATOR OIL, Banks pipe kit IC, fuel system, GTP 38R BB Turbo, Weld Typhoones
07 Dodge CTD, QCSB, Dark Gray 4x4, 6 speed, Tinted windows and a B&W hitch, MBRP 4in, AFE Stage 2 Progaurd 7, Centerline Wilderness Grizzly, Smarty CR, Quadzilla Commander, Fass 150, sbc , head studs so far a MPI twin turbo ,DDP 90hp tips also. It still smokes a little
I went from stock with ATS housing to Garrett BB and was disappointed in LOW END spool. That would be the 1.0 housing. It ran great at 2300 RPM on up, but I only tow with my truck and like low end grunt.
I changed to the TN .84 Non BB, and it was a little bit better.
After 1 year with that, I changed the turbne housing on the Garrett to the stock .84 housing, and put it back on. That was a great move! Spools like crazy down low, clears the smoke a lot better, and no surge! Hits about 32 lbs on Jody's tunes with the Banks BigHead at 6 turns preload. Defies conventional wisdom, but it works great!
Hey, but if you decide to go the TN route, I have the polished .84 non BB to sell!
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03 F-350 DUALLY, 2WD, .84 GTP38R TURBO (Yes, .84), BTS BUBBA, SPEARCO 6.0 IC, DP/BTS-CALE TUNES , BANKS 4" EXHAUST, BANKS BHA, ITP OVERBOOST REGULATOR, AFE STAGE II, OILGUARD BYPASS FILTER, MOBIL 1 DELVAC 1, MOBIL 1 ATF, ONLY DRIVEN PULLING 9000 LB 28 FT RACE CAR TRAILER AROUND WESTERN U.S.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: deerezilla9620</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: 7_3smoker</div><div class="ubbcode-body">what are my advantages with QSSB or H2E over garett or turbonetics? And 450-500 horse, 1000lbs is my goal. Could this be reliable too? </div></div>
Go Qssb so much better than the the bb turbos that are bolt on once you have the hypermax turbo kit lots of turbo's to pick from. I have a qssb but not on a psd I can say it is a good turbo that can take a beating. </div></div>
Yeah, but how much extra is the Hypermax turbo kit on top of the turbo? Not really needed since the OP only wants about 450 hp.
No it's not needed but a qssb will give more air to the psd with 450hp than a bolt on bb will any day. You also don't need 450hp you just want it. It's up to him to pick what turbo he thinks will work the best for him. Just like the rest of us had to do.
Every one has a opinion on what turbo is better than the other, pick a turbo and be happy. YOUR the one that has to drive it. [img]/forums/images/%%GRAEMLIN_URL%%/smile.gif[/img]
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00 CC, LB, DRW, Black F350 4x4, 6 speed, lunar series Boost and EGT. DP tuner 6pos chip SBC clutch,fuel system. GTP 38R BB, by Diesel Inovations. Weld Typhoones rims, Tymar filter,CCV mod and TERMINATOR OIL.
97 CC, SB Green F250 4x4 5 speed, SBC clutch, F5 DP chip, Isspro boost, EGT.Stage II sticks, Tymar, CCV mod, TERMINATOR OIL, Banks pipe kit IC, fuel system, GTP 38R BB Turbo, Weld Typhoones
07 Dodge CTD, QCSB, Dark Gray 4x4, 6 speed, Tinted windows and a B&W hitch, MBRP 4in, AFE Stage 2 Progaurd 7, Centerline Wilderness Grizzly, Smarty CR, Quadzilla Commander, Fass 150, sbc , head studs so far a MPI twin turbo ,DDP 90hp tips also. It still smokes a little
I just looked at my turbo and it says garret on the side. is that stock or after market? i have never payed attention because i always thought it was stock.
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2002 F-250 CC 4x4 with a ts 6 pos, k & n filter, muffler delete and auto meter guages.
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