Discovery 2 LS Conversion
#22
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Sixpack577 (07-12-2018)
#23
#24
The rules for swaps in CA are tight, but doable. It has to be from the same class of vehicle (no truck motors in cars), same year or newer, and it must retain 100% of the factory emissions equipment. Then it must be inspected, at which point the car should get a BAR sticker, which a smog station can scan when they're doing the smog check.
I looked into doing this with my VW with an engine swap from a later model VW -- (Mk2 with a Mk3 motor) but sold the car before i had a chance to do so.
I looked into doing this with my VW with an engine swap from a later model VW -- (Mk2 with a Mk3 motor) but sold the car before i had a chance to do so.
Last edited by Saturnine; 07-13-2018 at 02:58 PM.
#26
First, let me say this is an amazing build and I too will be following its progress. These old trucks need exactly this kind of an option and I'm impressed by your work. I will add that the 4HP24 is also known as the achillies heel of the big BMW M70 V12 cars back in the 90s however. I can't quote you actual numbers but there were lots of these cars that experienced trans problems by 100k and engines were available for a song, I know a few guys who transplanted them into E28s and E34s. It does give me an idea about the old M70 engine should I come up an another however Anyway, the LS doesn't have to be made into a hotrod (or used as one) in our trucks, just needs to be more reliable and efficient than the Rover supplied engine, and this looks like a cost effective solution for both targets. Bravo.
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SadaJones (07-08-2020)
#27
First, let me say this is an amazing build and I too will be following its progress. These old trucks need exactly this kind of an option and I'm impressed by your work. I will add that the 4HP24 is also known as the achillies heel of the big BMW M70 V12 cars back in the 90s however. I can't quote you actual numbers but there were lots of these cars that experienced trans problems by 100k and engines were available for a song, I know a few guys who transplanted them into E28s and E34s. It does give me an idea about the old M70 engine should I come up an another however Anyway, the LS doesn't have to be made into a hotrod (or used as one) in our trucks, just needs to be more reliable and efficient than the Rover supplied engine, and this looks like a cost effective solution for both targets. Bravo.
The primary reason we went with keeping the 4HP24 was because it seemed uselessly expensive to replace a perfectly good transmission. After running it behind the LS, it seems to be capable of handling the power. It shifts very smooth and has no idea there's a different engine powering it. Like you said, the LS doesn't have to turn the Disco into a hotrod. For day-to-day usage it should be fine. The LS I am using only makes 35 ft-lbs more peak torque than the 4.6.
On a side note, I believe Dinan even offered a shift kit for the 4HP24 with a bigger torque converter and transmission cooler for their twin turbo 850i setups and those made huge power. I think adding a second transmission cooler to the 4HP24 could be a practical option if people are looking to get more power out of the 5.3.
#28
#30
Still unsure, we are waiting to hear back from suppliers.
We may have come up with a solution that would allow people that want to do an non-emissions-capable swap to do some of the wiring on their own. On the upside, this would be less expensive. On the downside, there would have to be two harnesses in the engine bay versus the single simplified harness that we are planning on building for the emissions-capable swaps. If people are interested, I'll look more into this option.
I'll get some better pictures of the setup at the end of this week. I'm also working to get a master parts list together shortly.
We may have come up with a solution that would allow people that want to do an non-emissions-capable swap to do some of the wiring on their own. On the upside, this would be less expensive. On the downside, there would have to be two harnesses in the engine bay versus the single simplified harness that we are planning on building for the emissions-capable swaps. If people are interested, I'll look more into this option.
I'll get some better pictures of the setup at the end of this week. I'm also working to get a master parts list together shortly.
The following 2 users liked this post by ACEngineer:
morbengan (07-17-2018),
Sixpack577 (07-16-2018)