I just acquired a Garrett Turbo from a friend. It measures 73mm. I want to know if I can run this on a 1989-93 5.0 notch. Also, what will I need, and what kind of power can I put out?
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1988 red GT AOD. Mods: Ported GT40P Heads, 3-Angle Valve Job, E303 Cam, Edlebrock Performer 5.0 Intake, 65mm BBK EGR, Professional Products 65mm TB, MAC CAI, 80mm MAF, 24lb Injectors, 255lph Federal Mogul Fuel H.O. Fuel Pump, BBK Shorties, O/R H-pipe, Flowmasters, Dumps, Timing-16*, Shift kit, 4.10 gear, Sub-frames, Aluminum racing radiator, B&M Trans cooler, Pro-Form Upper and Lower Control Arms, Energy Suspension Urethane Suspension Components Recent: MSD 6AL Ignition, Battery Relocation
A 73mm turbo? That's one honkin turbo. It'll make gobs of power, typical size for a street turbo is 60mm. 66mm can be too big. To run that turbo, get a wastegate to handle it and turn the boost down. Obviously you'll need a large intercooler, and I doubt you'd come close to the limit of that unit.
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A 73mm turbo? That's one honkin turbo. It'll make gobs of power, typical size for a street turbo is 60mm. 66mm can be too big. To run that turbo, get a wastegate to handle it and turn the boost down. Obviously you'll need a large intercooler, and I doubt you'd come close to the limit of that unit.
excuse my ignorance but what is a wastegate, how much, what brand?
how big of an intercooler? and what kind of hp and tq numbers
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1988 red GT AOD. Mods: Ported GT40P Heads, 3-Angle Valve Job, E303 Cam, Edlebrock Performer 5.0 Intake, 65mm BBK EGR, Professional Products 65mm TB, MAC CAI, 80mm MAF, 24lb Injectors, 255lph Federal Mogul Fuel H.O. Fuel Pump, BBK Shorties, O/R H-pipe, Flowmasters, Dumps, Timing-16*, Shift kit, 4.10 gear, Sub-frames, Aluminum racing radiator, B&M Trans cooler, Pro-Form Upper and Lower Control Arms, Energy Suspension Urethane Suspension Components Recent: MSD 6AL Ignition, Battery Relocation
A wastegate keeps the boost from running away. It basically controls the boost pressure. Set it for a certain boost number and if it goes past it, the valve will open and vent the pressure. Most of the major turbo companies have them, like Garrett, Precision Turbo, among others, most are great parts. And that thing will put out more power than you will ever need, a 73mm turbo can go (with a proper engine) upwards of 800-900 hp. Even a 60mm can go up to 500 or so.
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Ask me why I ran "only" a 13.54.
Member: NMRA Member: White Mustang Registry #362 Member: Fuzzy Dicer
A 73mm is ''capable'' of gobs of power. If the turbo is too big, meaning the engine doesn't flow enough, the turbo won't spool up properly and you won't see good boost until too high in the rpm range. Also a lot of Garrett units are wastegated units. yours might be. Bigger in this case, isn't always better. Go to Garrett.com, they have a PDF download. If you have Adobe. It is a spec sheet for avery turbo they offer. Eagle, it seems I usually agree with you. You must know your stuff. lol
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97 Cobra-03 Cobra t56 and alum DS, SPEC111 clutch, FRPP 4:10,T&J Performance Forged 4v(8.9:1), Manley rods, Novi 2000 w/ Fast Track A/A I/C, Barry Grant Fuel syst., BBK longtubes and H-pipe, MSD ignition, Detroit True Track, Magnaflows, 315 NT01's on 17 x 11's, KB BAS, SCT tune and about a million other things. 575 RWHP. Going into the shop this winter, looking for 650 RWHP.
A 73mm is ''capable'' of gobs of power. If the turbo is too big, meaning the engine doesn't flow enough, the turbo won't spool up properly and you won't see good boost until too high in the rpm range. Also a lot of Garrett units are wastegated units. yours might be. Bigger in this case, isn't always better. Go to Garrett.com, they have a PDF download. If you have Adobe. It is a spec sheet for avery turbo they offer. Eagle, it seems I usually agree with you. You must know your stuff. lol
I have a problem about looking it up. I am at school and the turbo is at home so i cant look up the specs for a while. Where would the wastegate be located and what does it look like? How much will a new one cost? Also, I am going to sell the car I have now and get a notch 5.0. I need to know what I need to do to build it so it can handle the power. I will have the stock engine and need to know how to build it up. I have about 5-6 grand to spend. I am going to rebuild the suspension and upgrade the brakes. What parts do I need to do for the engine? and how to I get optimum performance out of this turbo?
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1988 red GT AOD. Mods: Ported GT40P Heads, 3-Angle Valve Job, E303 Cam, Edlebrock Performer 5.0 Intake, 65mm BBK EGR, Professional Products 65mm TB, MAC CAI, 80mm MAF, 24lb Injectors, 255lph Federal Mogul Fuel H.O. Fuel Pump, BBK Shorties, O/R H-pipe, Flowmasters, Dumps, Timing-16*, Shift kit, 4.10 gear, Sub-frames, Aluminum racing radiator, B&M Trans cooler, Pro-Form Upper and Lower Control Arms, Energy Suspension Urethane Suspension Components Recent: MSD 6AL Ignition, Battery Relocation
Check out B&G Custom Turbos for the hotside. Also check out TheTurboForums.com if you have any technical questions. I'm finishing up my B&G setup going into my '89 LX coupe. I'm running a Precision PT-67 P-trim. With that turbo, you'll be able to max out the stock block, and go well into the 700hp level with an aftermarket block and some more boost. It'll give you alot of room to grow. Be careful with the stock trans though, with any traction, you'll blow 3rd gear in the T5 real quick
-Kyle
Mustang Country Intl
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73mm Garrett Turbo on notchback 5.0 
