7.3 IDI to Cummins or PSD conversion - Diesel Forum - TheDieselStop.com
Ford Diesel Forum / Powerstroke Forum
Ford Diesel Forum / Powerstroke Forum
Go Back   Diesel Forum - TheDieselStop.com > Ford Diesels > 7.3L IDI Diesels (Not Power Strokes)

7.3L IDI Diesels (Not Power Strokes) Technical discussion of topics related to vehicles powered by the 7.3 Liter In-Direct Injection Navistar engines.

TheDieselstop.com is the premier Diesel Truck Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 05-21-2009, 09:55 AM   #1 (permalink)
Senior Member
 
Steve250's Avatar
 
Join Date: Aug 2008
Posts: 183
My Photos: (0)
Feedback Score: 0 reviews
Question 7.3 IDI to Cummins or PSD conversion

Hey guys, I was considering putting a turbo in my 7.3 IDI but I have decided not to.
I am now thinking of putting either a 7.3l PSD (can be had for around $1000) or a 5.9l 12v cummins (can be had for about $1500 w/tranny) in the truck.

I would not do this to the truck if it were in bad condition but this truck is NICE! It's a '92, has less than 100k on it and we just had the "common ford rust" repaired and it is nice. SO, seeing that we are not getting rid of it any time soon and kinda need alittle more power anyway, we are considering putting a different engine in it.

My questions:

1) Should I put a PSD or Cummins in it? (and wich one would be more powerful)

2) Will the cummins bolt up to the ford tranny or is there a conversion kit? (or should I just use the dodge tranny?)

3) Will the PSD bolt up to the older ford tranny? (I assume so)

4) What kind of mods will I have to do to the truck to put a cummins in it?

5) What kind of mods will I have have to do do put a PSD in it?

I know I'm asking alot, all info is appreciated, thanks,

Steve
__________________
'92 F-250 7.3 IDI Diesel 4:10 (99k) 4x4 ext cab (Prodigy brake controller)

'98 Ranger 4x4 ext cab - wheelin' in the mud

John Deere 510D Backhoe - it's not a ford, but it's nice
Steve250 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Sponsored Links
Advertisement
 
Old 05-21-2009, 11:11 AM   #2 (permalink)
Member
 
Blacklung's Avatar
 
Join Date: Oct 2008
Location: Rochester Hills, Mi
Posts: 62
My Photos: (7)
Feedback Score: 0 reviews
I personally would go with the 12v. Simple design and pretty much bomb proof. As far as bolting up to the tranny, you'll need an adapter plate. You can find them at DESTROKED: Cummins Conversions or ford-cummins.com. They also sell the motor mounts so it will basically be a direct bolt in. From there, it's pretty much all of the small odds and ends that have to be tied up. Good luck!
__________________
2001 F350 Crew cab Powerstroke. 8" lift, 37" Toyo M/t's. Straight piped. Bullydog Power Pup. '05 Harley Davidson headlights.

Soon to have: 4" downpipe to 5" straight pipe w/ 6" tip. DP tuner. Autometer 3 gauge pillar. AFE intake. '05 grille. More to come...
Blacklung is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 05-21-2009, 11:51 AM   #3 (permalink)
Senior Member
 
Steve250's Avatar
 
Join Date: Aug 2008
Posts: 183
My Photos: (0)
Feedback Score: 0 reviews
Thanks!

I didn't see any motor mounts for the 92 250... is it the same as the 99?
__________________
'92 F-250 7.3 IDI Diesel 4:10 (99k) 4x4 ext cab (Prodigy brake controller)

'98 Ranger 4x4 ext cab - wheelin' in the mud

John Deere 510D Backhoe - it's not a ford, but it's nice
Steve250 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 05-21-2009, 02:25 PM   #4 (permalink)
Senior Member
 
88beast's Avatar
 
Join Date: Jun 2007
Location: penn
Posts: 2,572
My Photos: (0)
Feedback Score: 1 reviews
Send a message via AIM to 88beast
go cummins theres plenty of kits
the psd wont bolt to youre tranny but you can buy a kit so the cummins will or if you have a manual just use a manual dodge tranny the nv4500 is killer and you cant kill it
also the cummins builds the biggest power
google ford cumins swap

psd is comp controled and all that
you can get an older 12v cummins non comp controled and bolt it right in no programing just fab up some mounts
__________________
88 F-250 body,550 rear frame setup, 7.3 idi, back up camera, class 5 bumper hitch welded to frame and gusseted, front mount hitch and off road lights,93 front clip, headache rack, 37" humvee tires, ac power converter,factory buckets from quadcab, power windows and locks,cobra 29 cb w/ 102" whip, high lift jack behind seat, toolbox for the junk, visor, running lights, huge front bumper, oba,


in progress western style mirrors, holset turbo, airhorns, and some other goodies
88beast is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 05-21-2009, 09:59 PM   #5 (permalink)
Senior Member
 
Steve250's Avatar
 
Join Date: Aug 2008
Posts: 183
My Photos: (0)
Feedback Score: 0 reviews
Might sound like a dumb question but what is the difference between a 24v and a 12v bvesides the fact that one has 12v and the other 24v?
__________________
'92 F-250 7.3 IDI Diesel 4:10 (99k) 4x4 ext cab (Prodigy brake controller)

'98 Ranger 4x4 ext cab - wheelin' in the mud

John Deere 510D Backhoe - it's not a ford, but it's nice
Steve250 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 05-22-2009, 12:36 AM   #6 (permalink)
Member
 
Blacklung's Avatar
 
Join Date: Oct 2008
Location: Rochester Hills, Mi
Posts: 62
My Photos: (7)
Feedback Score: 0 reviews
Quote:
Originally Posted by Steve250 View Post
Might sound like a dumb question but what is the difference between a 24v and a 12v bvesides the fact that one has 12v and the other 24v?
The 24v marked the end of the all mechanical Cummins motors. Many people go for the 12v when doing a swap due to the fact they're so simple (all mechanical, no electronics) and can make BIG power cheaply.
__________________
2001 F350 Crew cab Powerstroke. 8" lift, 37" Toyo M/t's. Straight piped. Bullydog Power Pup. '05 Harley Davidson headlights.

Soon to have: 4" downpipe to 5" straight pipe w/ 6" tip. DP tuner. Autometer 3 gauge pillar. AFE intake. '05 grille. More to come...
Blacklung is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 05-22-2009, 07:01 PM   #7 (permalink)
Senior Member
 
Steve250's Avatar
 
Join Date: Aug 2008
Posts: 183
My Photos: (0)
Feedback Score: 0 reviews
Quote:
Originally Posted by Blacklung View Post
The 24v marked the end of the all mechanical Cummins motors. Many people go for the 12v when doing a swap due to the fact they're so simple (all mechanical, no electronics) and can make BIG power cheaply.
I assumed that was it, thanks for affirming that!

And, if you would expand upon how it makes big power cheaply I woulld highly appreciate it!

Does it have something to do with fuel plates or the like???

Thanks a million!
__________________
'92 F-250 7.3 IDI Diesel 4:10 (99k) 4x4 ext cab (Prodigy brake controller)

'98 Ranger 4x4 ext cab - wheelin' in the mud

John Deere 510D Backhoe - it's not a ford, but it's nice
Steve250 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 05-23-2009, 09:08 AM   #8 (permalink)
Member
 
JohnBer's Avatar
 
Join Date: May 2009
Posts: 43
My Photos: (0)
Feedback Score: 0 reviews
I'm gonna be doing the same to my 94 73 turbo IDI.I bought the ford about 2 months ago got it loaded down with all my tools welder etc. I have a 12 valve Cummins sitting in the garage. I bought it for my 95 ram if the motor ever dies (got the motor really cheap) but i dont think it will. Its my fishin and go to sunday meetin truck.
As far as power goes from the cummins to the idi.... its a different world. With a fuel plate,100hp injectors, turbo, cold air intake and 5"exhaust i'm north of 400 hp on my cummins. even at freeway speeds it will pin ya back in the seat when ya romp it.
When ya swap, even if you use the dodge trans yer gonna need a better clutch if ya mod it at all. gauges are a must also, the cummins wont even give ya a sign it is working to hard till ya melt a piston and things start snapping.
I do like the ford chassis i have but the motor ......well lets just say i am not very impressed.
The 24 valve cummins is computer controlled and the vp 44 injection pump is not very trust worthy and very expensive.
94-98 p-pump cummins is the motor that everyone seems to want. injection pumps are about indestructible. 94 and 95 p-pumps had some issues with the plungers sticking but it's not really all that common.
All the 12 valves need the killer dowl pin tabbed. seems to be the only real flaw with em but its only a couple hour fix. parts cost about 80 bucks....ya loose the dowl pin it could cost ya the motor.
JohnBer is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 05-25-2009, 02:09 PM   #9 (permalink)
Senior Member
 
Steve250's Avatar
 
Join Date: Aug 2008
Posts: 183
My Photos: (0)
Feedback Score: 0 reviews
If I get the motor mounts and the adapter plate for my truck will the motor mount in the right place so that I don't have to redo the drive shaft?

Thanks
__________________
'92 F-250 7.3 IDI Diesel 4:10 (99k) 4x4 ext cab (Prodigy brake controller)

'98 Ranger 4x4 ext cab - wheelin' in the mud

John Deere 510D Backhoe - it's not a ford, but it's nice
Steve250 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 05-25-2009, 02:11 PM   #10 (permalink)
Senior Member
 
Steve250's Avatar
 
Join Date: Aug 2008
Posts: 183
My Photos: (0)
Feedback Score: 0 reviews
Quote:
Originally Posted by JohnBer View Post
I'm gonna be doing the same to my 94 73 turbo IDI.I bought the ford about 2 months ago got it loaded down with all my tools welder etc. I have a 12 valve Cummins sitting in the garage. I bought it for my 95 ram if the motor ever dies (got the motor really cheap) but i dont think it will. Its my fishin and go to sunday meetin truck.
As far as power goes from the cummins to the idi.... its a different world. With a fuel plate,100hp injectors, turbo, cold air intake and 5"exhaust i'm north of 400 hp on my cummins. even at freeway speeds it will pin ya back in the seat when ya romp it.
When ya swap, even if you use the dodge trans yer gonna need a better clutch if ya mod it at all. gauges are a must also, the cummins wont even give ya a sign it is working to hard till ya melt a piston and things start snapping.
I do like the ford chassis i have but the motor ......well lets just say i am not very impressed.
The 24 valve cummins is computer controlled and the vp 44 injection pump is not very trust worthy and very expensive.
94-98 p-pump cummins is the motor that everyone seems to want. injection pumps are about indestructible. 94 and 95 p-pumps had some issues with the plungers sticking but it's not really all that common.
All the 12 valves need the killer dowl pin tabbed. seems to be the only real flaw with em but its only a couple hour fix. parts cost about 80 bucks....ya loose the dowl pin it could cost ya the motor.
If you ever wanna' sell the cummins talk to me!
__________________
'92 F-250 7.3 IDI Diesel 4:10 (99k) 4x4 ext cab (Prodigy brake controller)

'98 Ranger 4x4 ext cab - wheelin' in the mud

John Deere 510D Backhoe - it's not a ford, but it's nice
Steve250 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 05-25-2009, 08:31 PM   #11 (permalink)
Senior Member
 
88beast's Avatar
 
Join Date: Jun 2007
Location: penn
Posts: 2,572
My Photos: (0)
Feedback Score: 1 reviews
Send a message via AIM to 88beast
you may have to move the engineinto the firewall it depends on the tranny get a tape measure find a dodge forum (to get specs on the motors and trans) and see how itll fit
__________________
88 F-250 body,550 rear frame setup, 7.3 idi, back up camera, class 5 bumper hitch welded to frame and gusseted, front mount hitch and off road lights,93 front clip, headache rack, 37" humvee tires, ac power converter,factory buckets from quadcab, power windows and locks,cobra 29 cb w/ 102" whip, high lift jack behind seat, toolbox for the junk, visor, running lights, huge front bumper, oba,


in progress western style mirrors, holset turbo, airhorns, and some other goodies
88beast is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 05-27-2009, 04:23 PM   #12 (permalink)
Senior Member
 
skunk's Avatar
 
Join Date: May 2007
Location: marlboro vermont
Posts: 411
My Photos: (0)
Feedback Score: 0 reviews
i wouldnt touch a psd at all. go with the cummins. it wont let you down. i am very impressed with what they can do. if i had the cash id keep old smokey for my every day driver and get a f350 or larger dump truck and plop a cummins in it for a real work truck!
__________________
Northern Woodland & Tree Care work trucks:
old smokey
- 86 Ford F250 6.9 IH navistar non-turbo idi diesel 4x4 dana 60 rear w/ limited slip, dana 44 front wishbone style, w/ 3.55 gears, C-6 w/ oil coolers, manual walbro frb-13 fuel pump, manual wellman glow plugs, K&N air filter no soup bowl and a homemade cold air intake, 3 inch pipe, class 31 heavy duty tractor truck batterys, lots of real gauges.
big drippy - 86 Ford F350 4 door crew cab, long box, 7.3 Navistar IDI non-turbo diesel, 2wd Dana 70 dually rear with 4.88, c-6 w/coolers.
The Swan - 87 chipmore wood chipper chuck and duck old school style. vm motori sun 4505 3.9 air cooled non-turbo DI 4 cyl diesel, rockford pto.
skunk is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 05-27-2009, 07:35 PM   #13 (permalink)
Senior Member
 
Steve250's Avatar
 
Join Date: Aug 2008
Posts: 183
My Photos: (0)
Feedback Score: 0 reviews
Thinking about buying a '96 cummins engine w/ 106k on it for $1800 - in good working order of course... does that sound like a good deal?
__________________
'92 F-250 7.3 IDI Diesel 4:10 (99k) 4x4 ext cab (Prodigy brake controller)

'98 Ranger 4x4 ext cab - wheelin' in the mud

John Deere 510D Backhoe - it's not a ford, but it's nice
Steve250 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 05-27-2009, 10:38 PM   #14 (permalink)
Member
 
Blacklung's Avatar
 
Join Date: Oct 2008
Location: Rochester Hills, Mi
Posts: 62
My Photos: (7)
Feedback Score: 0 reviews
Quote:
Originally Posted by Steve250 View Post
Thinking about buying a '96 cummins engine w/ 106k on it for $1800 - in good working order of course... does that sound like a good deal?
Sounds like a very good deal. Heck, if you don't end up buying it I may be interested.
__________________
2001 F350 Crew cab Powerstroke. 8" lift, 37" Toyo M/t's. Straight piped. Bullydog Power Pup. '05 Harley Davidson headlights.

Soon to have: 4" downpipe to 5" straight pipe w/ 6" tip. DP tuner. Autometer 3 gauge pillar. AFE intake. '05 grille. More to come...
Blacklung is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 05-28-2009, 01:29 PM   #15 (permalink)
Senior Member
 
Steve250's Avatar
 
Join Date: Aug 2008
Posts: 183
My Photos: (0)
Feedback Score: 0 reviews
Is it reasonable to assume, after adding up some rough numbers, that I could do the swap for $2500 not including the engine?
__________________
'92 F-250 7.3 IDI Diesel 4:10 (99k) 4x4 ext cab (Prodigy brake controller)

'98 Ranger 4x4 ext cab - wheelin' in the mud

John Deere 510D Backhoe - it's not a ford, but it's nice
Steve250 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Sponsored Links
Advertisement
 
Reply

  Diesel Forum - TheDieselStop.com > Ford Diesels > 7.3L IDI Diesels (Not Power Strokes)


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


» Featured Product
» Log in
User Name:

Password:

Not a member yet?
Register Now!

» Auto Insurance
» Wheel & Tire Center

Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 06:29 AM.



Powered by vBulletin® Copyright ©2000 - 2012, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.3.2