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Arthur.I



Member Since: 10 Jun 2024
Location: Roeselare
Posts: 1
Belgium 2002 Defender 110 Td5 PU Epsom Green
300tdi to 3.9 V8 swap
Hello,

I'm planning to replace my 300tdi with a 3.9 v8. Now I am wondering if there will be any problems with the wiring and ecu. What is the best thing to do or not to do. What is your experience with this?

Other tips about the engine swap are welcome as well.

I look forward to your responses.
Post #1037033 10th Jun 2024 3:55pm
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sasdiscos



Member Since: 22 Jul 2023
Location: UK
Posts: 151
 
I just re did mine.

Are you going cux14?

Buy new sensors and get rover gauge.

Loads online about cux injection. Download it all and have a good read.

Timing is an issue for me as I have the 4.0 serp engine and it has no timing marks. I think in the future I’m going to fit the newer ignition with coil packs.

Love the sound and power.
Hate the 10 mpg I get, can’t resist the load pedal now.

Steve.
Post #1037043 10th Jun 2024 5:11pm
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Mo Murphy



Member Since: 01 Jun 2008
Location: Letchworth Garden City, Herts
Posts: 2218
United Kingdom 1984 Defender 90 BMW M57 3.0 Diesel HT Auto Pennine Grey
Research research research ! Use Google and read every article and forum v8 conversion thread you can find.
Mo The Land Rover 90 - Many are called, few are chosen.

50 Shades of Pennine Grey
Post #1037044 10th Jun 2024 5:14pm
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MarkBrown



Member Since: 03 Oct 2022
Location: Mid Wales
Posts: 451
Wales 1983 Defender 110 Other HT Auto Keswick Green
I did a 3.5 efi swap about 27 years ago, all standard parts, there was 4 or 5 wires to connect and the adapter plate, probably engine mounts. Perhaps it was a simpler engine I had? It did 18mpg.
Post #1037050 10th Jun 2024 6:12pm
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Linds Hanson



Member Since: 16 Jan 2021
Location: Cornwall
Posts: 485
United Kingdom 
Just ask me we have converted literally hundreds to EFI V8 3.5 to 5.2 RV8 back in the day.
Post #1037087 11th Jun 2024 9:19am
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