EFI XF's - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars

XR_Strider_GuY · 06-03-2001, 04:20

Yeah just wondering, i've heard that the EFi's in the XF's are pretty bad. IE they just fail and no auto electrician can fix it. Most people who own XF's stick to the 97kw Carby 4.1.
Just wondering have anyof you owned and XF Efi and had no problems.

Just reading an old wheels mag, and they EFi'a are rated at 120kw. I reckon on of these with a five speed wouldn't go that bad.

Donut King · 06-03-2001, 04:29

DK is about to start building a Turbocharged EFI engine out of an XF :D

06-03-2001, 04:30

I have never owned one but while I was waiting for the delivery of my XR8 I was givien a XF to drive around and I'd say it was an absolute pusser.
Never ran smootly so I reckon it wasn't far off from crapping itself.
One thing good about it made me appreciate my new car a lot more.
Anyway these days a lot of guys are dropping V8's in them.

Aussie Pete · 06-03-2001, 04:37

The EFI engines seem to suffer badly when the valvetrain dies. The OHV 250 XF engines suffer from bad camshaft and lifter problems. When they go they get noisy and eventually the valvetrain dies. I don't know if the computer can cope with the cylinder differences.

I had an XF EFI and it wasn't too bad. Not a goer, very thristy, but certainly reliable. Oil quality and regular servicing are the issues here. Thick oil kills them!

XR_Strider_GuY · 06-03-2001, 06:06

Was your XF Efi a manual??? Surely it must have more power that you can feel compared to the carby.

Aussie Pete · 06-03-2001, 17:14

Quote:

Originally posted by EF_Falcon_GuY
Was your XF Efi a manual??? Surely it must have more power that you can feel compared to the carby.

If you are talking to me mine was a Ghia auto. I believe the EFI engines are way better than carby. Noticeable difference in go factor.

XR_Strider_GuY · 06-03-2001, 18:04

Pete,

Yeah i was askin about your car. Thats what i thought cause going in my mates previous car XF Fairmont with 3 speed i felt it could have abit more go.
Hehehe i guess if we're talkin about real go then an 8 under the bonnet is the go.

Aussie Pete · 06-03-2001, 18:18

Quote:

Originally posted by EF_Falcon_GuY
Pete, Yeah i was askin about your car. Thats what i thought cause going in my mates previous car XF Fairmont with 3 speed i felt it could have abit more go.
Hehehe i guess if we're talkin about real go then an 8 under the bonnet is the go.

Like I keep saying my little friend, you are merely playing around with sixes. For the real business the engine has to be bent and have at least four-a-side. WHich makes me think of how easily that V10 fits in a Mustang. Herrods had the burnout car there and it fits with room to spare. Maybe it will fit in AU2 easier than a 4.6.....

Wulos · 06-04-2001, 04:49

Have had some experience with XF X-Flows.
The efi 250 model ran a "warmer" cam than the carby model, the unleaded 250 had the "tamest" cam setup of the 250's. If u wanted to have the best of the "stock 250 gear" then fit the efi head onto an old super petrol 250
Fitting a 2 1/2" sports system + extractors can get them cracking quite nicely

Martin · 06-04-2001, 05:48

Building a cam to the Torana GTR XU1 specs works quite well in the 250XFlow apparently ....