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Old 05-01-2006, 20:32   #1 (permalink)
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94 F350 w/557 EFI....

I have completed my project 557 scat crank & rod, JE piston 8.5 to1, comp cams, headers high flow cat, etc. Motor.... The cam is a 460 EFI cam so not too much (.495 lift and 219deg at.050) and the heads are stock rebuilt with comp springs set up for the cam.... I am using the EEC IV computer so I have to send it off to have some work done..... My big question is, HAS ANYONE ELSE GOT THEMSELVES INTO THIS KIND OF PROJECT...... I was hoping it would work out in my crew cab dually... I haul a 32ft pace trailer so the extra bottom end was gonna be a dream... I got it running on the stock EFI with no mods but it was a little rough.... I know the EEC takes a bit of running after it has power loss to restore itself.... I was gonna send the computer to Jet to reprogram...


Any takers
Garry
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Old 05-02-2006, 00:33   #2 (permalink)
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Re: 94 F350 w/557 EFI....

Did you upgrade the EECIV to run a mass air flow meter?
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Old 05-02-2006, 11:19   #3 (permalink)
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Re: 94 F350 w/557 EFI....

No... Figured it would be fine without.... How would I update it to Mass air??
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Old 05-03-2006, 00:50   #4 (permalink)
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Re: 94 F350 w/557 EFI....

The early efi systems are known as a "speed density" system and are not very adjustable or adaptable to any engine modifications, later on the system changed to a "MAF" mass air flow system, from 1996 on.

Unfortunately you will need to update the engine bay to 96 on spec's, that is the complete front wiring loume, computer, MAF, o2 and everything else that plugs in including some of the intake pieces from the air box back to the intake manifold.
Most of these parts will have to be sourced from a junked F series, and if you do you must make a note of all the vehicle details that the parts came from, ie: build date, if its a super cab etc etc, in case you need to replace any faulty parts. (eg: there are 9 different o2 sensors for a efi 460)

Its one big pain in the ass, but you need to do it if you want it to run spot on as the later system is fully adjustable.

I have just been through this whole experience with a 95 F series efi 460.
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Old 05-03-2006, 13:37   #5 (permalink)
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Re: 94 F350 w/557 EFI....

Actualy converting to SDS EFI and a Tranny controler.... Just Ordered is... It is a Stand alone that doesn't need a laptop, can Data log and can adjust on the fly.... Quite a few of the VW guys that I race with are useing it too so I know it works.... VERY EASY TO TUNE.... Now I have contol over the Motor an the tanny.... I got frustrated and made some contacts yesterday... Thanks for you Input....

Check it out... It plugs right in to the Ford Harness... I just have to attach a few wires for the Tanny controler.... Total cost was $1500us shipped to my door.....

http://www.wmsracing.com/wmsweb/sds.htm

http://www.baumannengineering.com/tcswrg.htm
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