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Discussion Starter #1
Hi there, anybody know if is it possible to fit the F4R engine into a Mk 1 Laguna ? Realise engine/gearbox mountings might be different and have to replace CPU.
 

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Super Moderator Technical Supremo Platinum Member
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Both the Mk1 and the Mk2 Lags had the F4R as an option.
So mechanically should be sound.
The Mk1 would need to be a petrol burner unless you want to be replacing the whole fuel system as well.
Depending on which engine is in, gearbox/dif/final drive ratios may be different so need to swap as well.
Then your problems start.
ECU and possibly a good chunk of loom from donor car.
If a donor ECU, UCH and keys also needed...or a bypass of imobiliser.
IIRC, you were thinking of a trackday beast....so may want to look at adding a turbo.
Will involve a remap and possibly further input via CLIP or other suitable diagnostics.
 

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Discussion Starter #3
Both the Mk1 and the Mk2 Lags had the F4R as an option.
So mechanically should be sound.
The Mk1 would need to be a petrol burner unless you want to be replacing the whole fuel system as well.
Depending on which engine is in, gearbox/dif/final drive ratios may be different so need to swap as well.
Then your problems start.
ECU and possibly a good chunk of loom from donor car.
If a donor ECU, UCH and keys also needed...or a bypass of imobiliser.
IIRC, you were thinking of a trackday beast....so may want to look at adding a turbo.
Will involve a remap and possibly further input via CLIP or other suitable diagnostics.
Thats what I thought.Thinking of a 2.0 Turbo petrol, front loom and ecu from donor car. Will try to post vids of the work being completed. Thanks for advice. (y)
 

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Super Moderator Technical Supremo Platinum Member
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Very basic advice but I wish you well and wouldn't mind seeing how you do it.
Back in the days when I would swap engines without any concerns, it was basically a mechanical problem.
You could virtually take any Ford Engine and swap it into any Ford car, may have to make a little room or play with engine mounts, leave in the original gearbox (2 ltre Pinto into a 1200 Tina with original box don't half get to 60 quick.... but is flat out at 75) or swap it.
The ancillaries like brakes and suspension could always be sorted and back then I should have got frequent customer points from our local scrapyard.
Similar with other makes, got an 850 mini and swap in an engine from a scrap 1100...or better a 1300.
Even if the donor wasn't compatible, what the 'ell, modify whatever was needed and shoehorn it in.
Used to be a ready market for Jag IRS back axles to take the torque if someone stuck a beast under the bonnet.

Now there are the electronic issues, ECU, sensors may not compare, looms, imobiliser, mapping etc etc.
And if you still want it to pass an MOT, emissions must still match the requirements for the vehicle and you should tell DVLA that the engine has been swapped.
 

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At least Ford use to make it east around the early 2000's with looms that where plug and play, did many a fiesta and transit engine swaps where you unplugged loom , leave it on engine and wheeled it out and new (secondhand) one in.
 
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