More Power/Smoke - 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 #1 of 12 Old 03-23-2007, 05:09 PM Thread Starter
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More Power/Smoke

Hey i got a 7.3 IDI and i really like my truck i just want more out of it.
I've looked at dp and dont know if Jody will be able to make a programmer for my truck. I got mechanical injectors and a 5 sp manual tranny. Any help on more power and def more smoke is welcome
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post #2 of 12 Old 05-07-2007, 10:40 AM
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you can turn the injctor pump up on it thats good to unlock a few hidden ponies then youll just have to build an open element air cleaner for it im not sure bout the idi but my powerstroke took me about 30 mins and 130 bucks and it looks just like i orderd it from afe LOL... and the only other thing you can really improve is the exhaust... those trucks sound awesome with true dual strait pipes... any size or even make up a stack kit for it for would be sweet... there is a few other mods for that truck but in my own opinion ar not worth it like the turbo kits and so on... the banks turbo only puts out about 5 pounds of peak poost wich isnt going to give you a whole lot and for 2500 bucks on a 5 thousand dollar truck?



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post #3 of 12 Old 05-07-2007, 10:46 AM
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yep hes right, there is a link on this website to turn up the injection pump, if you go itno the forums section , and to idi 7.3 ,you can find it there , the job is actually fairly simple but has to be done right

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post #4 of 12 Old 05-08-2007, 10:38 AM
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How about an air to air system from ATS? Got a buddy lookin at gettin one. He was told they would add about 50 horses. Any ideas??

2003 F-250 4X4 Lariat FX4
Tony Wildman 6 Pos Chip
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post #5 of 12 Old 05-08-2007, 03:49 PM
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50 hp? doubtfull! the reason a turbo charged truck can benefit from an intercooler is the that the turbo compressing the air creates high intake temperatures thus the intercooler cools the charge of air before its blown into the motor... on the non turbo chargerd motors you would have better luck making a ram air intake (engine breating in air from outside the hot engine compartment) because an air to air is only going to cool the air to what ever temperature it is outside any ways.



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post #6 of 12 Old 12-06-2007, 12:22 PM
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I have an 88 non turbo, Do they sound good with duals or Y-pipe into 1 3 1/2 with out cats or muffler? Would stacks be worth it on that old truck? It doest smoke..just wonderin..my first diesel..
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post #7 of 12 Old 12-06-2007, 12:36 PM
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Originally Posted by IDIreefer View Post
I have an 88 non turbo, Do they sound good with duals or Y-pipe into 1 3 1/2 with out cats or muffler? Would stacks be worth it on that old truck? It doest smoke..just wonderin..my first diesel..
oh it can smoke

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post #8 of 12 Old 12-06-2007, 01:59 PM
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I put the Banks kit with a boost control valve on my '94, i'm getting 18 lbs of boost. Also added propane to it. w/out propane it'll out run my buddy's stock '97 psd w/propane it'll keep up w/it after he added bigger turbo n stuff. I for one am very satisfied w/Banks stuff...yes they are very conservative, but you just got to tweak their stuff a bit to get it to run right.
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post #9 of 12 Old 12-06-2007, 07:17 PM
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Quote:
Originally Posted by shotgunner682 View Post
Hey i got a 7.3 IDI and i really like my truck i just want more out of it.
I've looked at dp and dont know if Jody will be able to make a programmer for my truck. I got mechanical injectors and a 5 sp manual tranny. Any help on more power and def more smoke is welcome
I have an '89 non turbo 5sd. with almost 300,000 miles, a '94 factory turbo IDI auto with 289,000 miles, and a '08 6.4 auto with 20,000 miles. I have turned up the pump, changed the timing, and put a 4'' exhaust on the '89 and it runs great with tons of black smoke!!! The '94 is basicly stock with the exception of a straight pipe where the muffler used to be. I have ordered a 3'' down pipe from Banks and a cold air intake from Hypermax that will also work with a factory non turbo air cleaner. My 6.4 is stock and I hate it! The '94 is by far the fastest truck of the three and I have not even turned up the pump yet! Enjoy your IDI engine, just keep an eye on the return lines over the injectors, I just replaced the O rings on one today, this new diesel eats them up bad! Good luck, let me know if I can help!

Fletcher
'90 F250 Supercab IDI 7.3
Banks Sidewinder Turbo
4'' straight pipe
116,000 miles

'94 F250 single cab IDI Factory Turbo 7.3
3'' banks down pipe
Banks pyrometer
3 1/2'' straight pipe
K&N Air filter
Hypermax air intake
Hydrogen Generator
Pump turned up
Timing advanced
315,000 miles!



'89 F250 4x4 supercab 7.3 IDI
4'' exhaust
pump turned way up!!!
297,000 miles
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post #10 of 12 Old 12-15-2007, 04:09 AM
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turn it up

New to the forum, new to diesels. Bought a 91 7.3 ATS turbo 5 speed.
Would only pull 6 1/2 lbs of boost, turned up the fuel pressure using the info found above (about 50 degree turn) and what a difference! I pulled 10 1/2 lbs of boost this morning and EGT's were only 400. Now when I pull my trailer this summer I'm sure the EGT will go much higher. I see some black smoke when I get on it but not too horrible. I asssume I can get more out of this thing but going to leave it alone for a couple weeks, see how it does and watch to see if my fuel mileage changes much (14.5 before the pressure change)
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