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Modifiying A Mondeo TB To Fit A Si Inlet
http://www.fiesta-si.com/forums/viewtopic.php?f=16&t=8195
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Author:  john_d [ Wed Aug 08, 2007 8:28 pm ]
Post subject:  Modifiying A Mondeo TB To Fit A Si Inlet

start by removing the throttle linkage and bracket from your si TB


now onto the mondeo TB

start by removing the TPS

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remove the bracket and the throttle linkage

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now for some modifying :)

the white part of the si linkage wont fit onto the link arm on the mondeo TB as the diameter is too small and needs to be widened, i used a dremel



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now for some filing/grinding as the butterfly wont fully open without this

the pic below is without the filing

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you can clearly see the part restricting the linkage from fully opening (pic below)


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after the filing

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then re-assembly the throttlebody linkage the same way you removed it from the si

as for the throttle cable bracket, you need to file the part below,

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with the 2 parts filed it should look something like this

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the si throttle cable bracket can now be fitted, i modded mine in order to get a better neater fit

from this

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too this

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and finally, the reassemble TB

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PLEASE NOTE: i dont claim this is the correct way (or best way) to do this, its just the way i did it taking pics along the way :)

PS i also know my TB needs a good clean :lol:

Author:  onslack [ Wed Aug 08, 2007 8:34 pm ]
Post subject: 

excellent guide john 8-)

Author:  jamie [ Tue Sep 15, 2009 1:56 pm ]
Post subject:  Re: Modifiying A Mondeo TB To Fit A Si Inlet

How much will this change the 1.6si's performance?

Author:  john_d [ Tue Sep 15, 2009 7:11 pm ]
Post subject:  Re: Modifiying A Mondeo TB To Fit A Si Inlet

wouldnt do much on a 1.6, required for the 2l though :)

Author:  will87 [ Sun Jan 24, 2010 2:51 pm ]
Post subject:  Re: Modifiying A Mondeo TB To Fit A Si Inlet

thanks for the guide :)

Author:  minx_94 [ Sun Jul 07, 2013 12:57 pm ]
Post subject:  Re: Modifiying A Mondeo TB To Fit A Si Inlet

Is this just so the 2.0 TB will fit a SI inlet? I have a 2.0 TB and a HO RS1800 inlet it's going to go on a 2.0 silver top lump, but would I still need to modify the 2.0 TB or will it all go on and the SI throttle cable work fine? Any help would be great!

Author:  onslack [ Wed Jul 10, 2013 11:55 am ]
Post subject:  Re: Modifiying A Mondeo TB To Fit A Si Inlet

if you havent got an rs1800 throttle body you'll still need to modify the 2.0 tb and fit the 1.6si linkage so it can use the si throttle cable, this applies for the 1.6/1.8 ally inlets :thumbsup:

Author:  minx_94 [ Fri Jul 12, 2013 9:18 pm ]
Post subject:  Re: Modifiying A Mondeo TB To Fit A Si Inlet

Thanks onslack, well I've done it following the guide, tried the 2.0 throttle body and it just gets caught on fuel/injector parts. Thanks for you help and advice. Good thread!

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