interested in purchasing an 85 f250 6.9 - Ford Powerstroke Diesel Forum
6.9L IDI Diesels Technical discussion of topics related to vehicles powered by the 6.9 Liter In-Direct Injection Navistar engines.

 
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post #1 of 5 Old 07-25-2010, 08:25 PM Thread Starter
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interested in purchasing an 85 f250 6.9

im curious if theres any performance upgrades? it will be my work/rag truck. can i make it smoke A LOT?
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post #2 of 5 Old 07-25-2010, 08:33 PM
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The easy upgrades are as follows:

Head studs, turbo, new injectors and IP properly timed. You can also get a torque grind cam, and some other goodies, but thats getting in depth.

Smoke? Yes, leave it N/A (no turbo), crank the fuel up. But you can melt your motor down...and honestly it gets annoying after a while.

-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 5 Old 08-02-2010, 10:48 AM
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they have a cam for the 6.9?

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 #4 of 5 Old 08-02-2010, 10:50 AM
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Yup. Its a custom grind developed back when all the logging companies in the NW used IDI's. Helps the bottom end a lot.

-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 5 Old 08-02-2010, 10:56 AM
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i may have to look into that. i'm doing a complete rebuild of my motor and putting headstuds and and ceramic coated pistons in.

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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