Has anyone turbocharged the original 1600cc efi from a late mk4 XR3I? My understanding would be that a Fiesta RS Turbo engine and ecu would be easiest route but these setps are now very rare and risky buying old secondhand. So with my car being efi, standalone management shouldnt be a problem sorting, would efi head need need anything doing other than a cam maybe? Would the car require mods to the block and a change of pistons? Would want around 190-200bhp if i was to do conversion.
I know id need address brakes,need intercooler ,t3 etc.Thanks.

 

Ford RST EFI fits mostly plug&play to a N/A EFI but like you said, these are getting old, sometimes don't work properly nowadays and there's not many people out there with sufficent knowledge.

I'd also go for a modern standalone management. Either one you get basic RST maps for or one that is used by companies who have done a few RSTs before. Just keep in mind to change EVERY sensor and the injectors as these usually don't work with an aftermarket management. The CPS probably will work and you can keep the sensor for the engine temp gauge.

You can keep the head as it is. When it comes to cams there's a lot of different opinions about them. Some say keep them standard and turn up the boost a little bit more. Power plus a smooth running engine on low revs.

EFIs came with a compressoin of 9,75:1 while the RSTs had 8,3:1. So you will have to get turbo pistons. Standard ones are usually ok for about 180 hp. For more, get a set of forged ones. And you'll need an oil feed and return for the turbocharger.

 

if your only wanting low boost like std 0.8 psi area you could use a copper head gasket made to thickness of 2 std headgaskets this will drop cr from n/a to turbo spec there about Ł80/90 to be made i think

 

Im in trhe process of doing this, replaced standalone ecu , did the rear disc conversion, pistons and return turbo oil line to sump next hurdle.
being in australia, there really noone here i can discuss with for turbo side , only 1 other guy has a mk3 xr3 that i know here so its better than none, but the scene is small, really im it here in SA ha




throught near side bulkhead

rear cossie conversion off ebay , should have got burton kit to save hassle.

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