Engine swap for Euro road trip
Posted: Sun Jun 01, 2014 12:47 am
Heya, peoples.
I want to pull a caravan with my SJ across Europe, so extra fuel economy would also be a massive bonus. I may even (budget allowing) fit an "endurance" fuel tank so I can cruise for hundreds of miles without needing to refuel.
Fuel is likely to be about £838 (probably £1000+ with caravan in tow) with the current engine. I think I can cut that to about £384 (£494 inc caravan) with a diesel engine, whilst making the caravan actually do-able (not a chance with the 1.3, lets face it!).
So yeah, I'm looking at a grand for the engine and everything, but if I can save £500 in fuel on one trip, and I may be doing that trip every summer for the next few years, it makes the diesel suddenly make sense. *LOTS* of sense!
I'm eyeing up a 1.2TDI engine that's done less than 10k for my SJ. I know people shove 1.6/1.9 VW TDI's into SJ's, but I'm not interested in one of those heavy beasts - the 1.2 is an all alloy 3 cylinder and weighs in at 75kg inc turbo and intercooler.
So it shouldn't bugger up the SJ's offroad capabilities. It's actually marginally lighter than the G13 in there now!
Upsides - It's got 120ft/lb torque and 70hp. The cars they put 'em in get 80mpg (some do 92 on a 50mph cruise). Should give me 45mpg or more instead of 20 with the G13. Have seen the older generation of these engines tuned to 200ft/lb and 120hp.
Downsides - I'd need to get the dash computer, key, ignition barrel, loom, ECU and engine from the same car and shoe-horn all that into my SJ. No-one's done one before. Not sure if I can mate it to an SJ gearbox, or if I'd need an Audi gearbox. The 1.6/1.9 isn't the easiest swap (but then, nor was Ladaman's M15a swap!).
The plan I'm considering is: Buy a second SJ gearbox, buy the engine/loom/ecu etc and build a working setup on an engine stand, then drop the lot into my SJ in one weekend (yeah, right!).
I haven't given up on the idea of an M15a, J20a (or even a J24a) so before you tell me to go that way instead, I'm considering options here. I like the idea of being the only 1.2TDI SJ owner - I like the idea of diesel as diesel suits my driving style more than petrol. I love torque low down.
Thoughts?
I want to pull a caravan with my SJ across Europe, so extra fuel economy would also be a massive bonus. I may even (budget allowing) fit an "endurance" fuel tank so I can cruise for hundreds of miles without needing to refuel.
Fuel is likely to be about £838 (probably £1000+ with caravan in tow) with the current engine. I think I can cut that to about £384 (£494 inc caravan) with a diesel engine, whilst making the caravan actually do-able (not a chance with the 1.3, lets face it!).
So yeah, I'm looking at a grand for the engine and everything, but if I can save £500 in fuel on one trip, and I may be doing that trip every summer for the next few years, it makes the diesel suddenly make sense. *LOTS* of sense!
I'm eyeing up a 1.2TDI engine that's done less than 10k for my SJ. I know people shove 1.6/1.9 VW TDI's into SJ's, but I'm not interested in one of those heavy beasts - the 1.2 is an all alloy 3 cylinder and weighs in at 75kg inc turbo and intercooler.
So it shouldn't bugger up the SJ's offroad capabilities. It's actually marginally lighter than the G13 in there now!
Upsides - It's got 120ft/lb torque and 70hp. The cars they put 'em in get 80mpg (some do 92 on a 50mph cruise). Should give me 45mpg or more instead of 20 with the G13. Have seen the older generation of these engines tuned to 200ft/lb and 120hp.
Downsides - I'd need to get the dash computer, key, ignition barrel, loom, ECU and engine from the same car and shoe-horn all that into my SJ. No-one's done one before. Not sure if I can mate it to an SJ gearbox, or if I'd need an Audi gearbox. The 1.6/1.9 isn't the easiest swap (but then, nor was Ladaman's M15a swap!).
The plan I'm considering is: Buy a second SJ gearbox, buy the engine/loom/ecu etc and build a working setup on an engine stand, then drop the lot into my SJ in one weekend (yeah, right!).
I haven't given up on the idea of an M15a, J20a (or even a J24a) so before you tell me to go that way instead, I'm considering options here. I like the idea of being the only 1.2TDI SJ owner - I like the idea of diesel as diesel suits my driving style more than petrol. I love torque low down.
Thoughts?