OCTOBOX Posted April 30, 2020 Share Posted April 30, 2020 Hi all I am looking into buying a 4.0l thor out of a disk 2. My question is what is required to make it run. Obviously it is going to need the engine loom& ECU, AFM,LAMBDA SENSORS ECT. Is there anything else like alarm, ignition coding? Does anyone have a wire diagram they could post. Cheers Quote Link to comment Share on other sites More sharing options...
Escape Posted April 30, 2020 Share Posted April 30, 2020 The wire diagrams are in RAVE, that's the easy part. But both the Disco 2 and P38 Thot use an immobiliser. The BCU or BECM has to provide the correct signal to get the engine ECU to start working. There are kits to bypass the security, but might be cheaper to just fit a MegaSquirt, especially if you don't have an ECU, loom and all sensors to go with the engine. Also worth noting the Bosch injectors operate at higher pressure (3.5 bar) compared to older LR EFI systems (2.5 bar). Filip 1 Quote Link to comment Share on other sites More sharing options...
smallfry Posted April 30, 2020 Share Posted April 30, 2020 You basically have two options. Aftermarket ignition and fuelling, Megasquirt, Link, Emerald, Spitronics, etc. OR Tornado Systems (Mark Adams, Rover ECU Guru) offer the Bosch ECU modified to work standalone, and offer various maps for it. None of which is cheap. Relatively. Quote Link to comment Share on other sites More sharing options...
OCTOBOX Posted April 30, 2020 Author Share Posted April 30, 2020 What about the non thor 4.0L engine the one with the traditional trumpet housing. Was this one as complicated or did it use the same tack as the earlier 3.9s? Quote Link to comment Share on other sites More sharing options...
Bigj66 Posted May 1, 2020 Share Posted May 1, 2020 I’m fitting a Thor 4.0 to my Series 3 and will be using MS to run it. If you are looking for a supplier of GEMS or Thor V8 engines then let me know. Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted May 1, 2020 Share Posted May 1, 2020 14 hours ago, OCTOBOX said: What about the non thor 4.0L engine the one with the traditional trumpet housing. Was this one as complicated or did it use the same tack as the earlier 3.9s? The basic lump etc. is the same, it's only a different intake, injectors, returnless fuel rail, coolant temperature sensor and details like that. Megasquirt will happily run either of them Quote Link to comment Share on other sites More sharing options...
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