? What turbo should I update with on 347 - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 10 Old 07-28-2019, 07:41 AM Thread Starter
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Has a 347 with 9:8:1 compression DSS short block, screw in core plugs, TfS heads old Hi port, comp cams cam shaft Harland sharp rocker arms. Edelbrock rpm 2 intake, AODE trans with up graded clutches an stub shaft Bauman controller PI torque converter, 355 gears with a on3 turbo 70 mm.runs strong just over 500 rwhp on 11 psi of boost. Comp cam custom ground something like a 292x extreme cam almost a 600 lift.

So I just bought this car I know I ask alot of ? S on here and and have learned alot .I want to upgrade this to E85 car so it has 60 pound inj now going to go to? 80s or more? Has a 320 with a boost ta pump ? Go to a 450?
I'm puting the A.c back in the car so 76mm turbo is about as big as I can go.
I'm willing to spend money on the turbo so what are your suggestions on this new refind build?
Keep in mind it's a street car and I dont plan on puting a cage in it so street turbo .

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post #2 of 10 Old 07-28-2019, 10:29 AM
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If you like the On3 turbos Id try their BB76mm with like a .96 at. It seems like a nice unit.


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post #3 of 10 Old 07-28-2019, 02:21 PM Thread Starter
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I can't say I'm sold on any brand turbo I know it's a changing market all the time with vendors so and technology in the turbo industry.
But bang for buck on-3 has had some good deals.
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post #4 of 10 Old 07-30-2019, 01:37 PM Thread Starter
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Looking at a 76 mm Bullseye
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post #5 of 10 Old 08-07-2019, 07:18 PM
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A 76 can make good power.

A Precision 7675 CEA with a .96AR T4 housing will make 1000 HP or so. It is small, light, spools real fast, and makes good power for the size.

With 3300 lbs I ran 5.40 in the 1/8th in a 347 Dart block build. 3" downpipe and full exhaust.


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89 LX. 363, single turbo, Super Vic EFI, TFS high port heads by TEA, solid roller, glide. Holley HP EFI. (exact combo varies)
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post #6 of 10 Old Yesterday, 08:16 PM Thread Starter
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Thanks for the reply that's some impressive numbers you ran .
That's more than this 347 dss block is going to hold but be fun to push it to 600 with that turbo on e85.Exclusive CEA️ (Competition Engineered Aerodynamics) compressor wheel machined from a 2618-aluminum forging
Higher efficiency and faster transient response for maximum power and performance
76mm inducer compressor wheel
"Ported H" compressor cover 4.0" inlet/3.0" outlet
75mm, 84 trim turbine wheel
Available with either a Hydrodynamic 360 thrust bearing system, or an Air-cooled, dual ceramic ball-bearing center housing rotating assembly (CHRA)
Undivided .81 A/R, .96 A/R or AGP 1.27 A/R T4 turbine housing
Part Number: 655-7675, 655-7675 B
Now I see they have a gen 2 of this same turbo for about a grand more .But i need a dart b4 that lol.
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post #7 of 10 Old Yesterday, 10:26 PM
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IMO, if you're only wanting 600-700 then no need to put a turbo on it that can make 1000hp. I would size it down a bit to something that will sustain your HP goals. A properly sized unit will spool faster and be more responsive street driving and be more fun when cruising around. Should you decide to make more HP with a different motor then step up the game.

ks


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http://baselinesuspensions.com/Projects/balrog.htm
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post #8 of 10 Old Yesterday, 11:23 PM Thread Starter
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Well it has a 70 mm now reg journal bering on a dss 347 TfS hi ports.
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post #9 of 10 Old Today, 12:16 AM
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the on3 76mm turbo will be fine

turn it up to 18 lbs and toss e85 in it youd be making over 700rwhp

youd need a 450 pump and beefed up fuel pump wiring as well as a fuel rail that will support it and a properly sized return line

yep youd need 80lb injectors and would be best to run them at 60psi base fuel pressure

give this a good read
Pre Tune Information / EFIDynoTuning
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post #10 of 10 Old Today, 12:44 AM Thread Starter
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Thanks for the advice and the link.great information my set up has alot of that done.
Dss 347 .
On3 70mm journal.
Canfield heads thought they where TFS.
Edelbrock performer rpm 2 intake.
75 mm throttle bbk body.
Msd ing .stock disb.
50 shot off NoS.
Built trans for 750 hp.Button for lock up torque converter.
Boost controller is somehow must be in spring only 7 ta 8 pounds.
Tuned at alternative motorsports.stock ecu.
Built rear end with 355s.
340 rear fuel pump with 60 pound injectors.

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