custom twin turbo with headers?? - Ford Powerstroke Diesel Forum
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post #1 of 13 Old 05-16-2010, 07:58 PM Thread Starter
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custom twin turbo with headers??

my 85 f250 is out of commission right now with a dead injection pump but will be getting a new one in a few weeks. i saw in Diesel Power that someone made custom headers and twin turbo system for a GM 6.5l i.d.i. and i want to do the same type of setup. anyone know how much work it would be to fab up a custom set of headers? i plan on making my truck for drag racing/ sled pulling and wanted the most bang for the buck. i already have ladder bars on it and i am in the process of putting a locker in the rear end, anything else i need to do?

1985 f250 with a 6.9idi and 4 speed manual 2 wheel drive. turned up injection pump, single 3" stack and heavy duty clutch.
1995 F250 extended cab long bed with 1996 12 valve Cummins, 47re, 3" downpipe to 5" curved stacks. custom paint
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post #2 of 13 Old 05-17-2010, 12:00 AM
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Well.....have you ever fabbed up headers before? That said the hard part will be where the headers bolt onto the heads, whatever that is called it slips my mind right now. That will have to be custom made. If you have fab experience have at it.

That said, what kind of turbo's, how much boost, fuel system? ARP head studs is a must, and if anything over 15psi of boost, you will need to pull that motor and lower compression.

I would run a sequential setup versus twins, one big and one small turbo. I always prefered that.

-Justin-
1985 Ford F-250 with a 6.9 IDI/T-19 4speed 4x4
Paint, Eagle Alloys, Kelly Safari TSR's, ATS turbo, gauges

2004 Jetta TDI 5 speed
2004 2wd Excursion Limited 6.0. Testing how loyal I am to Ford
1997 Passat B4V TDI. 1 of 80 imported in 97. 50 MPG and a factory 25 gallon fuel tank!
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post #3 of 13 Old 05-17-2010, 06:37 AM
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Even if you do all the work yourself, it's going to cost a ton of money to do this and then someone with a newer 7.3, 6.0, 6.4 or Cummins with a little work will still make more power.

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post #4 of 13 Old 05-17-2010, 09:01 AM
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Its definatly going to take a lot of money.

Start with a good block. Totally rebuilt with lowered compression (somewhere around 19:1). Use a 6.9 as its less prone to cavitation. Have a machine shop look and see if they can tap the heads and block for 9/16" head studs, if they can, I dont think the heads are going anywhere. Have them balance the rotating mass to 5000rpm's. Have a custom grind cam made up (I know somebody who offeres a torque cam through his cam guy, I have rode in his truck, it has amazing bottom end). You need custom valve springs, as you dont want to float valves. IP is going to have to be custom, the super moose pump pushs out 120cc's of fuel, which is good for??? 300hp at the wheels I believe. Stud the intake manifold, after that, its all up to you.

-Justin-
1985 Ford F-250 with a 6.9 IDI/T-19 4speed 4x4
Paint, Eagle Alloys, Kelly Safari TSR's, ATS turbo, gauges

2004 Jetta TDI 5 speed
2004 2wd Excursion Limited 6.0. Testing how loyal I am to Ford
1997 Passat B4V TDI. 1 of 80 imported in 97. 50 MPG and a factory 25 gallon fuel tank!
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post #5 of 13 Old 05-17-2010, 09:44 AM
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Originally Posted by FordGuy100 View Post
Its definatly going to take a lot of money.

Start with a good block. Totally rebuilt with lowered compression (somewhere around 19:1). Use a 6.9 as its less prone to cavitation. Have a machine shop look and see if they can tap the heads and block for 9/16" head studs, if they can, I dont think the heads are going anywhere. Have them balance the rotating mass to 5000rpm's. Have a custom grind cam made up (I know somebody who offeres a torque cam through his cam guy, I have rode in his truck, it has amazing bottom end). You need custom valve springs, as you dont want to float valves. IP is going to have to be custom, the super moose pump pushs out 120cc's of fuel, which is good for??? 300hp at the wheels I believe. Stud the intake manifold, after that, its all up to you.
So, all that work for 300hp?

2006 F-350 4X4 FX4 Tuscany Longhorn , Leer Custom bed cap, RECON lights, Upfitter switches, Whelen Lighting, Hi-Idle Mod.

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post #6 of 13 Old 05-17-2010, 10:05 AM
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Mostof that stuff is fairly easy to do. Some custom pieces but oh well. Also, that's 300hp with that pump. You can always find anotee builder to make a pump flow 150+ cc's.

May sound weird to you but there us a following for these IDI's

-Justin-
1985 Ford F-250 with a 6.9 IDI/T-19 4speed 4x4
Paint, Eagle Alloys, Kelly Safari TSR's, ATS turbo, gauges

2004 Jetta TDI 5 speed
2004 2wd Excursion Limited 6.0. Testing how loyal I am to Ford
1997 Passat B4V TDI. 1 of 80 imported in 97. 50 MPG and a factory 25 gallon fuel tank!
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post #7 of 13 Old 05-17-2010, 02:18 PM Thread Starter
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i had my truck dyno'd a couple weeks back before the injection pump went out and it topped at 183hp. i also went to davesdiesel.com and they actually have the high performance ip's along with injectors, headstuds, and offer ceramic coating the pistons. prices are relatively cheap there compared to everywhere else i looked

1985 f250 with a 6.9idi and 4 speed manual 2 wheel drive. turned up injection pump, single 3" stack and heavy duty clutch.
1995 F250 extended cab long bed with 1996 12 valve Cummins, 47re, 3" downpipe to 5" curved stacks. custom paint
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post #8 of 13 Old 05-19-2010, 02:00 PM Thread Starter
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nevermind the twin turbo idea. i got a turbo from an old Mack 371 for free that im going to put on my truck

1985 f250 with a 6.9idi and 4 speed manual 2 wheel drive. turned up injection pump, single 3" stack and heavy duty clutch.
1995 F250 extended cab long bed with 1996 12 valve Cummins, 47re, 3" downpipe to 5" curved stacks. custom paint
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post #9 of 13 Old 05-19-2010, 03:47 PM
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How big of a turbo is this?

-Justin-
1985 Ford F-250 with a 6.9 IDI/T-19 4speed 4x4
Paint, Eagle Alloys, Kelly Safari TSR's, ATS turbo, gauges

2004 Jetta TDI 5 speed
2004 2wd Excursion Limited 6.0. Testing how loyal I am to Ford
1997 Passat B4V TDI. 1 of 80 imported in 97. 50 MPG and a factory 25 gallon fuel tank!
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post #10 of 13 Old 05-19-2010, 05:20 PM Thread Starter
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it is about the same size of an Aurora 2000

1985 f250 with a 6.9idi and 4 speed manual 2 wheel drive. turned up injection pump, single 3" stack and heavy duty clutch.
1995 F250 extended cab long bed with 1996 12 valve Cummins, 47re, 3" downpipe to 5" curved stacks. custom paint
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