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XR3i Inlet Manifold onto MFI

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Old 18-09-2006, 05:46 PM
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dave_y
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Default XR3i Inlet Manifold onto MFI

ok i have done a search and didn't find a definitive answer.

How much of a mission is it gonna be to fit an XR3i manifold (like what Christian has on his RST) to an MFI RS Turbo?

By looking at it, the problems are going to be in the form of fitting the cold start injector and knock sensor etc?

Can anyone shed any light on this?
Old 18-09-2006, 07:54 PM
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XR2
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Cold start injector is just the same.

XR3i MFI was available with KE-Jetronic and TPS and knock sensor in Germany so you'll get all parts you need for the XR3i inlet. Just the throttle is bigger!
Old 18-09-2006, 08:29 PM
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ok, i shall go and strip the xr tomorrow
Old 18-09-2006, 08:30 PM
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is there anything else i should take off it such as the fuel lines etc as the CSV cant be in exactly the same place surely?
Old 18-09-2006, 08:31 PM
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a good guide is www.rsbible.co.uk
Old 18-09-2006, 08:33 PM
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im staying MFI for the time being....
Old 18-09-2006, 08:41 PM
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You'll have to modify the fuel line for the csv.

And you can't use all of the UK XR3i parts. These cars didn't come with knock sensor and TPS!
Old 18-09-2006, 08:53 PM
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se mk3 cabbie
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sorry to butt in mate, how hard is it to put said inlet on efi
Old 18-09-2006, 09:00 PM
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does anybopdy have a picture of one.....

i noticed that they have a union on the front left of the manifold which is used for a breather. can i bung the knock sensor in there as i would only be blocking off the breather port anyway....
Old 18-09-2006, 09:15 PM
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This car has got KE-Jet:

http://fordescort.britec-online.de/s...php?show_id=59

Don't know exactly where the knock sensor sits on this engine, iirr it's screwed directly onto the bottom end. If you use your turbo one, be sure it will sit on the right place or it won't fit. So you can't use the breather screw.

Conversion to EFI can also be done. Throttle housing can be used, modifications for the fuel injectors are the same if you want to convert your ERST manifold to EFI
Old 18-09-2006, 09:27 PM
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ok well i will go and get one to have a play with if nothing else.....
Old 18-09-2006, 09:42 PM
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Originally Posted by XR2
This car has got KE-Jet:

http://fordescort.britec-online.de/s...php?show_id=59

Don't know exactly where the knock sensor sits on this engine, iirr it's screwed directly onto the bottom end. If you use your turbo one, be sure it will sit on the right place or it won't fit. So you can't use the breather screw.

Conversion to EFI can also be done. Throttle housing can be used, modifications for the fuel injectors are the same if you want to convert your ERST manifold to EFI
Spot the deliberate and IMO VERY SERIOUS fault with the engine in those pictures
Old 18-09-2006, 09:45 PM
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That would be? No cambelt cover and a RSi rocker cover on a XR3i engine with 90 hp???
Old 18-09-2006, 09:53 PM
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Originally Posted by XR2
That would be? No cambelt cover and a RSi rocker cover on a XR3i engine with 90 hp???
Try looking a little harder at the cam belt
Old 18-09-2006, 09:57 PM
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Should get a new one?

Holger built a totally new engine, so this won't be a problem now
Old 18-09-2006, 10:00 PM
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Looks like stevie wonder fitted the cam belt, thats totally wrong

Probably best its got a new engine!
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