Can i turn the srew up on an 88 IDI - Page 4 - Ford Powerstroke Diesel Forum
7.3L IDI (Non-Powerstroke) Diesels Technical discussion of topics related to vehicles powered by the 7.3 Liter In-Direct Injection Navistar engines.

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post #31 of 35 Old 07-15-2008, 11:15 PM
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well he has a huge welder and tool boxes with every tool you could immagine x2
I've gots a service bed too. Forgot to mention that.
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post #32 of 35 Old 07-15-2008, 11:22 PM
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his is diesel though, and bone stock
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post #33 of 35 Old 07-16-2008, 10:36 AM
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I cant believe nobody has said this....

If you turn up the pump on an IDI you NEED a pyro. EGT's will get out of hand quick...trust me. When turning the pump up, its measured in flats. An allen screw has 5 sides right, well one side is 1 flat, or 1/5 of a turn. It will not take much. My truck is turned up around 1/4 turn, or 1.5flats, and I can roal coal even with the added air from my turbo. I can see 1200* with only turning it up that much, and thats with 9psi of boost....so on a N/A you would be way over the limit. I'm thinking about turning mine up another flat...I want more power .

The difference between an IDI and the 460 is great. First off.....driving hard my truck get 15.5mpg....thats shifting at governed rpms all the time, WOT all the time....try to do that with a 460 and I garuntee you you will be below 8mpg. Towing I see 13.5mpg....and I can accelerate up hills with my turbo and pump turned up. Stock, they can be a little slow, but dont underestimate a good running turbo IDI. Its nice to jump from a stock or mild tuned OBS PSD into my truck...my truck has so much more balls down low its not even funny. I dont have to wait for my turbo to spool to have power....

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

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post #34 of 35 Old 07-16-2008, 05:08 PM
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Originally Posted by FordGuy100 View Post
I cant believe nobody has said this....

If you turn up the pump on an IDI you NEED a pyro. EGT's will get out of hand quick...trust me. When turning the pump up, its measured in flats. An allen screw has 5 sides right, well one side is 1 flat, or 1/5 of a turn. It will not take much. My truck is turned up around 1/4 turn, or 1.5flats, and I can roal coal even with the added air from my turbo. I can see 1200* with only turning it up that much, and thats with 9psi of boost....so on a N/A you would be way over the limit. I'm thinking about turning mine up another flat...I want more power .

The difference between an IDI and the 460 is great. First off.....driving hard my truck get 15.5mpg....thats shifting at governed rpms all the time, WOT all the time....try to do that with a 460 and I garuntee you you will be below 8mpg. Towing I see 13.5mpg....and I can accelerate up hills with my turbo and pump turned up. Stock, they can be a little slow, but dont underestimate a good running turbo IDI. Its nice to jump from a stock or mild tuned OBS PSD into my truck...my truck has so much more balls down low its not even funny. I dont have to wait for my turbo to spool to have power....
I get 11mpg punched in the city with the 460. I get 12mpg going 70mph on the freeway taching 2800rpm.

Also I want to add that I'm comparing both engines stock to stock.
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post #35 of 35 Old 07-16-2008, 08:48 PM
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I get 11mpg punched in the city with the 460. I get 12mpg going 70mph on the freeway taching 2800rpm.

Also I want to add that I'm comparing both engines stock to stock.
Wow, thats pretty dang impressive for a 460.

Stock for stock...the 460 will outrun the IDI... but the IDI will get better fuel economy. My truck stock averaged 17mpg and I drove it hard, ringing out every rpm it would give me on shifts and what not. Best I got stock was 19.7mpg...without overdrive...doing 60mph. I never did get a fuel economy number for 70mph....nobody drives that fast around here.

Plus who wants to drive a gasser

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

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