I have been contemplating swapping a diesel engine into a land rover discovery for a couple of years. The overall goal of my project is to build a rock solid multi-use SUV that I can drive for a long time. The truck will need to have good road manners balanced with good capabilities off road. I really like the Disco, it's a great truck with a lot of off road prowess without the high cost of a Defender or a Jeep. The only downside to the rover is the horrible range that you get with the rover V8 offered in North America. 19 gallons of fuel gets you about 220 miles. Converting my truck to diesel power would increase the mileage from 12mpg to somewhere around 22-24mpg, effectively doubling the cruising range of the truck. The other downside to the V8 is the factory electronic components which are notoriously unreliable.
I know Land Rover sells a variant of the Discovery in other markets that are factory equipped with the 200 and 300 TDI. These are great engines and I may still end up going this direction but I want to explore all the various possibilities. I also currently live in California, so using a USDM available engine is something I need to weigh heavily. A 300 TDI is also fairly heavy compared to a VW TDI, so taking a hundred pounds out of the nose would offset some of the other additional equipment (winch, etc).
300TDI Specs:
Layout: 4-cylinder, in-line
Block/head: Cast iron/aluminium alloy
Valves: OHV, belt-driven camshaft, push-rod operated
Capacity: 2,495 cc (152.3 cu in)
Bore × stroke: 90.47 × 97 mm (3.562 × 3.8 in)
Compression ratio: 19:1
Fuel injection: Bosch VE rotary pump and Bosch two-stage injectors (with Bosch EDC system on versions with automatic transmission)
Induction: Allied Signal T25 turbocharger
Power: 111 hp (83 kW) @ 4,250 rpm (versions with manual transmission)
122 hp (91 kW) @ 4,250 rpm (versions with automatic transmission)
Torque: 195 lbf·ft (264 N·m) @ 1,800 rpm (versions with manual transmission)
210 lbf·ft (280 N·m) @ 1,800 rpm (versions with automatic transmission)
So here’s the question.
Can a VW TDI be built to work in my truck? What about a mechanical injection pump? Can I get 250 lbft of torque with the right modifications?
I will also be using this thread to organize my links and references. I appreciate your feedback, but please be constructive. negative comments don't help anyone.
I know Land Rover sells a variant of the Discovery in other markets that are factory equipped with the 200 and 300 TDI. These are great engines and I may still end up going this direction but I want to explore all the various possibilities. I also currently live in California, so using a USDM available engine is something I need to weigh heavily. A 300 TDI is also fairly heavy compared to a VW TDI, so taking a hundred pounds out of the nose would offset some of the other additional equipment (winch, etc).
300TDI Specs:
Layout: 4-cylinder, in-line
Block/head: Cast iron/aluminium alloy
Valves: OHV, belt-driven camshaft, push-rod operated
Capacity: 2,495 cc (152.3 cu in)
Bore × stroke: 90.47 × 97 mm (3.562 × 3.8 in)
Compression ratio: 19:1
Fuel injection: Bosch VE rotary pump and Bosch two-stage injectors (with Bosch EDC system on versions with automatic transmission)
Induction: Allied Signal T25 turbocharger
Power: 111 hp (83 kW) @ 4,250 rpm (versions with manual transmission)
122 hp (91 kW) @ 4,250 rpm (versions with automatic transmission)
Torque: 195 lbf·ft (264 N·m) @ 1,800 rpm (versions with manual transmission)
210 lbf·ft (280 N·m) @ 1,800 rpm (versions with automatic transmission)
So here’s the question.
Can a VW TDI be built to work in my truck? What about a mechanical injection pump? Can I get 250 lbft of torque with the right modifications?
I will also be using this thread to organize my links and references. I appreciate your feedback, but please be constructive. negative comments don't help anyone.