4.3L LV3 (Ecotec 3 V6)
- Thread starter Suny
- Start date
dgoodhue
BuSTeD 4.3
Re: 4.3L LV3 (Ecotec 3 V6)
I don't know if this is going to be the next big thing. LS style heads on an update V6, direct injection, updated ignition, aluminum block/heads are all appealing, but their could be some obstacles that would affect the desirability of a swap like this.
How much boost is the 11.0:1 pistons going to be able to withstand? How hp will the block hold?
If the block will only hold 500hp, its not going to be a popular swap. Or on the flip side a junkyard motor with a few mods that make 1000hp it could be very popular.
I don't know if this is going to be the next big thing. LS style heads on an update V6, direct injection, updated ignition, aluminum block/heads are all appealing, but their could be some obstacles that would affect the desirability of a swap like this.
How much boost is the 11.0:1 pistons going to be able to withstand? How hp will the block hold?
If the block will only hold 500hp, its not going to be a popular swap. Or on the flip side a junkyard motor with a few mods that make 1000hp it could be very popular.
QuinnSY
Donating Member
Re: 4.3L LV3 (Ecotec 3 V6)
I know Edelbrock and Magnuson make supercharger kits for the L86 and L83 engines (6.2 & 5.3). They both come with larger injectors but I have no idea where they come from. The Magnuson on the L83 is an extra 105 hp and 105 tq at 6 lbs of boost. It should do pretty well resisting detonation since it is direct injection but who knows on the factory bottom end. Maybe that is why the boost is limited to 6 PSI. I haven't seen anyone push the engine to its limits yet but it will be fun to see how much power the new design holds. I bet in the next year we will start seeing more performance parts for the engines and then I could see it replacing the LS engines.
I know Edelbrock and Magnuson make supercharger kits for the L86 and L83 engines (6.2 & 5.3). They both come with larger injectors but I have no idea where they come from. The Magnuson on the L83 is an extra 105 hp and 105 tq at 6 lbs of boost. It should do pretty well resisting detonation since it is direct injection but who knows on the factory bottom end. Maybe that is why the boost is limited to 6 PSI. I haven't seen anyone push the engine to its limits yet but it will be fun to see how much power the new design holds. I bet in the next year we will start seeing more performance parts for the engines and then I could see it replacing the LS engines.
Re: 4.3L LV3 (Ecotec 3 V6)
Yea, this is a new design, so chances are the design is very similar to the LT1. I really don't think this is going to need anything new internally for a double of the HP, guys over at LS1tech are making gonzo power with the 5.3s and they are already making huge numbers on the LT1s. I'll be on the hunt for one...
Yea, this is a new design, so chances are the design is very similar to the LT1. I really don't think this is going to need anything new internally for a double of the HP, guys over at LS1tech are making gonzo power with the 5.3s and they are already making huge numbers on the LT1s. I'll be on the hunt for one...
Priceless
New member
Re: 4.3L LV3 (Ecotec 3 V6)
I know this was brought back from the dead, but....
http://www.ebay.com/itm/2014-CHEVRO...OUT-/151651818758?hash=item234f271d06&vxp=mtr
Intake looks nice.. Just like the lsx's.
I know this was brought back from the dead, but....
http://www.ebay.com/itm/2014-CHEVRO...OUT-/151651818758?hash=item234f271d06&vxp=mtr
Intake looks nice.. Just like the lsx's.
Syclones rock
New member
Re: 4.3L LV3 (Ecotec 3 V6)
I've looked into it a little bit. There are a few problems with that I can see just from looking, but anyone innovative could probably get around them. To start with, the engine has 11:1 compression, so at the very least, the pistons will have to be change out to lower compression. Either that, or someone could test their luck on e85 or maybe race gas. The bellhousing pattern is slightly different, with the top bolt for the bellhousing being slightly offset, but with the others looking the same. With a little bit of fabrication it shouldn't be too difficult to get an old 4l60 or 4l80 to work. The last is that it doesn't have a power steering pump and brackets will need to be built in order to use one. The harness shouldn't be too hard to deal with since there are already LTx standalone harnesses made, and whoever had made them should be able to do the same for the LV3.
Also, the bore and I think the stroke are different than any of the new generation engines, so pistons and possibly rods from the other new gen engines wouldn't be possible to use. At the very least, it may be necessary to have custom pistons made.
edit - It would also be necessary to at the very least have some custom engine mounts made. Which if you can weld isn't a big deal. Not sure about the oil pan and if it would need to be modified replaced with a custom unit.
I've looked into it a little bit. There are a few problems with that I can see just from looking, but anyone innovative could probably get around them. To start with, the engine has 11:1 compression, so at the very least, the pistons will have to be change out to lower compression. Either that, or someone could test their luck on e85 or maybe race gas. The bellhousing pattern is slightly different, with the top bolt for the bellhousing being slightly offset, but with the others looking the same. With a little bit of fabrication it shouldn't be too difficult to get an old 4l60 or 4l80 to work. The last is that it doesn't have a power steering pump and brackets will need to be built in order to use one. The harness shouldn't be too hard to deal with since there are already LTx standalone harnesses made, and whoever had made them should be able to do the same for the LV3.
Also, the bore and I think the stroke are different than any of the new generation engines, so pistons and possibly rods from the other new gen engines wouldn't be possible to use. At the very least, it may be necessary to have custom pistons made.
edit - It would also be necessary to at the very least have some custom engine mounts made. Which if you can weld isn't a big deal. Not sure about the oil pan and if it would need to be modified replaced with a custom unit.
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Re: 4.3L LV3 (Ecotec 3 V6)
That's not too bad for a new engine and trans but I don't see that becoming too popular when the cost of swap and internals will cost more than an 8 with a better trans stuck to it, 6l80 would be garbage pretty quick too. Seems like it would cost thousands more only to be able to say its a 4.3L 6 still
Once the original engine is out, you might as well go big IMO.
That's not too bad for a new engine and trans but I don't see that becoming too popular when the cost of swap and internals will cost more than an 8 with a better trans stuck to it, 6l80 would be garbage pretty quick too. Seems like it would cost thousands more only to be able to say its a 4.3L 6 still
Once the original engine is out, you might as well go big IMO.Re: 4.3L LV3 (Ecotec 3 V6)
I found this link...
http://ls1tech.com/forums/conversions-hybrids/1753035-new-gen-v-project.html
There is a picture of the oil pan on the 2nd page....looks like a drop in with the oil pan design...any other opinions on that oil pan?
I found this link...
http://ls1tech.com/forums/conversions-hybrids/1753035-new-gen-v-project.html
There is a picture of the oil pan on the 2nd page....looks like a drop in with the oil pan design...any other opinions on that oil pan?
Re: 4.3L LV3 (Ecotec 3 V6)
3" inches from bottom of engine mount to top of oil pan
4" inches from bottom of block to lowest point of front oil pan
Alternator in top, A/C on bottom
24" from front to rear
Air pump sticks out 7" from side of block in front of engine mount
Approx 7-8" from back of block to rear bolt hole of engine mount
3" inches from bottom of engine mount to top of oil pan
4" inches from bottom of block to lowest point of front oil pan
Alternator in top, A/C on bottom
24" from front to rear
Air pump sticks out 7" from side of block in front of engine mount
Approx 7-8" from back of block to rear bolt hole of engine mount
DMTY
Member
Re: 4.3L LV3 (Ecotec 3 V6)
Matt Happel has now had his hands on the new 4.3 with impressive results.
https://youtu.be/HYHQN5IEBE0
Matt Happel has now had his hands on the new 4.3 with impressive results.
https://youtu.be/HYHQN5IEBE0
dgoodhue
BuSTeD 4.3
Re: 4.3L LV3 (Ecotec 3 V6)
I am going to have to see a lot more than 425rwhp (which is essentially 500hp at the crank in a rwd engine) to start getting excited about LV3, the torque number are really low. My junkyard 96+ 4.3 Vortec motor will make that much hp without crazy high boost numbers (if I had to guess 15-16psi). A LV3 is a lot of work for that much hp. Obviously this is just the first example, but I wonder if the 11.1:1 is just too much compression. I don't have any experience or neither have even research rear mount turbo efficiency so make the relatively low numbers might be from that.
I am going to have to see a lot more than 425rwhp (which is essentially 500hp at the crank in a rwd engine) to start getting excited about LV3, the torque number are really low. My junkyard 96+ 4.3 Vortec motor will make that much hp without crazy high boost numbers (if I had to guess 15-16psi). A LV3 is a lot of work for that much hp. Obviously this is just the first example, but I wonder if the 11.1:1 is just too much compression. I don't have any experience or neither have even research rear mount turbo efficiency so make the relatively low numbers might be from that.
Helicoprion
Donating Member
Re: 4.3L LV3 (Ecotec 3 V6)
Does anybody know how much boost he was running?
Does anybody know how much boost he was running?
dgoodhue
BuSTeD 4.3
Re: 4.3L LV3 (Ecotec 3 V6)
Not the same but still pretty cool...
https://www.youtube.com/watch?v=Q5ej6SPKk3w
Not the same but still pretty cool...
https://www.youtube.com/watch?v=Q5ej6SPKk3w