4.0 V8: 233 ft-lbs. @ 3000 rpm
300TDi: 195 ft-lbs. @ 1800 rpm
Factory data. What am I missing?
300TDi: 195 ft-lbs. @ 1800 rpm
Factory data. What am I missing?
Here's a picture for you, taken from RPI Engineering website:4.0 V8: 233 ft-lbs. @ 3000 rpm
300TDi: 195 ft-lbs. @ 1800 rpm
Factory data. What am I missing?
Is it this engine?Robert Davis is working on a GM straight six swap kit for Defenders that might work in a D1 with minimal effort.
Meanwhile in Australia.... The original 4.8 and 5.3 LS truck motors are not very powerful, hell the Vortec 4200 I6 you mentioned is also in the same ballpark.That R380 is not, nor the rest of the driveline, engineered or able to reliably deliver LS power. It's very expensive to do it right, and that's not it.
Is it this engine?
Is it this engine?
no, its an old carbureted dump truck engine from the 60s and 70s
I really doubt its any better than a 4.6, which will already destroy a r380 if you’re not careful
Meanwhile in Australia.... The original 4.8 and 5.3 LS truck motors are not very powerful, hell the Vortec 4200 I6 you mentioned is also in the same ballpark.
lol @ swapping in a big six gas guzzler.no, its an old carbureted dump truck engine from the 60s and 70s
lol @ swapping in a big six gas guzzler.
so your sure it's a bottom end knock because of info from a person who has never really heard the knock? And its either a catalytic converter or a bottom end knock ? Two noises that are very different from one another? If its a converter you will hear it rattle if you hit it with a soft mallet.I've had several responses from another posting also identifying the cats as a possible issue. My muffler is rusted out, so I might just replace the exhaust system completely and see if there's any change there first.
Select an engine swap that meets the following criteria:
Inexpensive
Simple to work on
Similar power to Rover V8
As good or better fuel efficiency
Reliable
Easy to source
Packaging fits LR engine bays
Bolts up to LR transmissions
Let us know what you’ve come up with.
that engine doesnt bolt up to a v8 transmission. Hes using an adapter to the diesel bolt pattern, a repro short bellhousing, and placing the transfercase in the defender 200tdi spot, not the common spot shared with the v8 and 300tdi
There is also no way a siamese ported 60s engine with 20% more displacement gets the same or better fuel mileage.
there are shenanigans afoot
No, I'm not sure of anything. But, the sound is pretty distinct from the cats. I figure that the exhaust, based on rusted out muffler, is overdue for a replacement, so I'm going to do that first. IF that doesn't solve my noise, I'll start digging into the engine, but at least I've got a new exhaust system either way.so your sure it's a bottom end knock because of info from a person who has never really heard the knock? And its either a catalytic converter or a bottom end knock ? Two noises that are very different from one another? If its a converter you will hear it rattle if you hit it with a soft mallet.
If cost isn't a concern, the LS conversion is an interesting thought. I was contemplating doing the same with my G4. But in the end, I stumbled upon a totaled truck with a freshly rebuilt motor. After selling off most of the good parts and the rest for scrap metal, I was about net even on the expenses.
If your going to do a rebuild, I'd consider doing a top-hat build on the block. Google Turner Engineering for the parts. Good people. I have a complete 4.6 rebuild kit in my garage. It was supposed to be for the G4. I'm hanging on to it for the next time the engine blows a liner.
Look at the rpm that the diesel starts making torque. The gas engine is just coming off idle and that little diesel is ready to pull stumps.4.0 V8: 233 ft-lbs. @ 3000 rpm
300TDi: 195 ft-lbs. @ 1800 rpm
Factory data. What am I missing?