Lozic ECU + TCU + AWD Tune

[dareckibmw]

Your welcome.
I'm curious too.

Passed today with an original ECU/TCU installed. I'm good for another 2 years, so I swapped back to Lozic's

 

[XGC75]

After 113 pages of posts, I have a few questions as this has gotten me interested in the cool features Lozic has been making.

I spend a lot of time in Sport on my daily drives. The TCU tune sounds really appealing as my transmission is really slow to downshift manually on my stock GT2.

I hear a lot on pressure 2 downshifts from 2->1 being harsh, especially for daily driving. I know my stock, manual downshifts from 2->1 are pretty harsh already, unless I'm in just the right sweetspot (and I have a 2021 so it is rev-matching). However, it does not seem like my stock TCU downshifts into first when in full-auto mode but I'll have to count gears and maybe it is just slipping so much I do not notice. Does the Lozic TCU downshift into first when in sport, full-automatic or only in manual mode?

Yes

Does anyone have a video of what they consider a harsh downshift from 2->1?[/B] Maybe a video with something hanging from their review mirror to show the impact of the jolt; I recall a YouTube I can't find now of two guys driving showing the jolt driving a pressure 3 or other tuner TCU but they were at speed.

I really like that the TCU can make full-automatic downshift more. (Though I don't know I'd be up for braking the wheels free on downshifts!) Does anyone know if Lozic can set sport to downshift and comfort to downshift but not as aggressively as sport (e.g. for use on snow and just easier in-city deceleration) and still allow the torque converter to disengage in ECO (coast mode I think I've heard it called)?

I find that comfort downshifts more than stock, but less than sport. So I think mode is already taken into account. I haven't gotten Eco mode to disengage the torque converter yet, but I don't often use Eco and to be frank I find even stock it's a bit choosy when it decides to disengage. So I'm not sure whether the Lozic TCU disabled that or I just haven't made it happy.

I see pressure 0, 2 and 3 TCU reviews but have not heard of anyone with a pressure 1 or 4 yet. Has anyone yet actually ordered and driven a pressure 1 TCU?

I actually think pressure 1 will be perfect for me. I feel like stock is a bit too much on the comfortable side. Pressure 2 shifts quick, but more jerk than what an automaker would let out the door. If pressure 1 splits the difference, it'll be like sport package oem quick. Goldilocks.

 

[Slip_Angle]

I'm running the Lozic TCU with stock pressure. I've also tried Pressure 2 and 3 but not 1. I agree that pressure 1 would probably be the sweet spot for many people and it would be fun to try. I'm sticking with what I have though as I really like the stock pressure with -8% and LC torque off.

Does anyone remember what the torque gauge shows at full throttle when fully stock? (No ECU/TCU) - I ask because with just the Lozic TCU and all else stock at full throttle, it goes all the way to 400ft/lbs. I'm wondering if the TCU is allowing the ECU to give full power on a roll vs being limited by the stock TCU?

 

[XGC75]

How do you see torque on the gauges? I just see a bar

 

[Slip_Angle]

How do you see torque on the gauges? I just see a bar

Yeah, just the bar. Right now with the Lozic TCU, it goes all the way to the limit on the right hand side, where it says 400ft/lbs. I seem to recall it doesn't go that far when stock to match the cars advertised torque rating but I could be wrong.

 

[BHamm]

Very hard to search in this thread. I have the lozic TCU, love it. Wondering what people have experienced with the AWD tune?

 

[BadTrainDriver]

Very hard to search in this thread. I have the lozic TCU, love it. Wondering what people have experienced with the AWD tune?

It helps a little, yes. I had it when I had my ECU and TCU, and it helped control spinning the rear tires if I launched with too much boost. If money isn't an issue, I'd try it.

 

[GennyGuy]

Very hard to search in this thread. I have the lozic TCU, love it. Wondering what people have experienced with the AWD tune?

I use it to smoke my tires . In all seriousness though, it helps transfer torque faster. I think it may show up in a "larger" way if you are circuit racing however. Like @BadTrainDriver said, if the money isn't an issue then grab it. I'm gonna tag @sweetboyed in as he may be able to better explain it. I sent him a text and he said he'll be on later to give a better explanation. At the time of this writing, it's 3AM where he is.

I think on the quarter-mile, I gained another 0.1 - 0.2 . I would think the faster torque transfer falls under "putting the power down" better. I'm running 11's with A/S tires, all 3 tunes and ALL the heat soak, full weight. My IATs are obnoxious after a run. I haven't yet upgraded IC or run wmi yet (both coming soon). If you can afford it and have the other mods you want accounted for, I would get it.

I'm in a G70, best run at strip is 11.87. Best dragy run is 11.66.

 

[BHamm]

I use it to smoke my tires . In all seriousness though, it helps transfer torque faster. I think it may show up in a "larger" way if you are circuit racing however. Like @BadTrainDriver said, if the money isn't an issue then grab it. I'm gonna tag @sweetboyed in as he may be able to better explain it. I sent him a text and he said he'll be on later to give a better explanation. At the time of this writing, it's 3AM where he is.

I think on the quarter-mile, I gained another 0.1 - 0.2 . I would think the faster torque transfer falls under "putting the power down" better. I'm running 11's with A/S tires, all 3 tunes and ALL the heat soak, full weight. My IATs are obnoxious after a run. I haven't yet upgraded IC or run wmi yet (both coming soon). If you can afford it and have the other mods you want accounted for, I would get it.

I'm in a G70, best run at strip is 11.87. Best dragy run is 11.66.

Hey thanks for the info. My best draggy is 11.54, but have Lap3 2.0 tune to install when summer comes, and with some tweaking should definitely be lower. I most care about 1/8 and 1/4 mile.

 

[GennyGuy]

Hey thanks for the info. My best draggy is 11.54, but have Lap3 2.0 tune to install when summer comes, and with some tweaking should definitely be lower. I most care about 1/8 and 1/4 mile.

I hear you. I feel I could have run faster at the strip, but we'll see in a few months. For reference, that run was with a 1.85 60ft, the draggy run was 1.74. I think the saying is a tenth in the 60ft is 2 tenths in the quarter? Good luck to you when you get everything installed. Keep us posted!

 

[sweetboyed]

Very hard to search in this thread. I have the lozic TCU, love it. Wondering what people have experienced with the AWD tune?

The AWD ECU cannot feel the effect in normal driving.

It is effective when cornering, starting, and grip on the road surface are different so that a sharp difference in rotation between the front and rear wheels occurs.

Even with 4 wheel drive, the drive transmission method of AWD sends torque to the rear first, then the transfer case works and then sends it to the front.

In this case, the torque transmission according to the rotational deviation of the front and rear wheels is transmitted earlier and the TC torque is raised more strongly.

The Stinger's AWD ECU works in the same way as the Elantra N and Veloster N's eLSD ECUs.

Also, although it is not currently applied, it has succeeded in changing the torque distribution ratio. Torque distribution of 3 front and 7 rear was also applied.

When accelerating on the dyno, the speed increased at a rate of 30 km in front and 70 km in the rear.

Although it is a 4 wheel drive, I tried to create a more rear wheel feel.

In the case of AWD mLSD ECU after 2020 years, it is four-wheeled, but the feeling of the rear wheel is definitely strong.

When accelerating sharply in a few corners, the rear flows so much that it becomes zero steer or a little counter steer.
(The Stinger we tested at this time was 442hp 765Nm.)

In this case, if more torque is transmitted to the front, safety will be secured.

I tried to make a video to show the comparison, but it was difficult to make.

 

[GennyGuy]

The AWD ECU cannot feel the effect in normal driving.

It is effective when cornering, starting, and grip on the road surface are different so that a sharp difference in rotation between the front and rear wheels occurs.

Even with 4 wheel drive, the drive transmission method of AWD sends torque to the rear first, then the transfer case works and then sends it to the front.

In this case, the torque transmission according to the rotational deviation of the front and rear wheels is transmitted earlier and the TC torque is raised more strongly.

The Stinger's AWD ECU works in the same way as the Elantra N and Veloster N's eLSD ECUs.

Also, although it is not currently applied, it has succeeded in changing the torque distribution ratio. Torque distribution of 3 front and 7 rear was also applied.

When accelerating on the dyno, the speed increased at a rate of 30 km in front and 70 km in the rear.

Although it is a 4 wheel drive, I tried to create a more rear wheel feel.

In the case of AWD mLSD ECU after 2020 years, it is four-wheeled, but the feeling of the rear wheel is definitely strong.

When accelerating sharply in a few corners, the rear flows so much that it becomes zero steer or a little counter steer.
(The Stinger we tested at this time was 442hp 765Nm.)

In this case, if more torque is transmitted to the front, safety will be secured.

I tried to make a video to show the comparison, but it was difficult to make.

In conclusion, we gets another "go fast" part .

 

[BHamm]

Feels to me like it won't do much for my 1/8 1/4 miles times.

 

[GennyGuy]

Feels to me like it won't do much for my 1/8 1/4 miles times.

I guess that depends on how much you would be looking to gain from it. Or how much time you would want/expect to drop off of those times. Looking at your signature (sounds like a really nice car btw), you seem to have a lot more done to the car and only a time that's better than mine by 0.1 seconds. It's possible that the reason my car is "keeping up" is because of the AWD controller. I also don't know when you obtained your PB, so I could be way off. Like I said before, I think real world, it's another tenth or 2. But that can make or break a race. Everything comes down to individual value for whosever car it is. Good luck next season only a few more months before I can get back to track.

 

[BHamm]

I guess that depends on how much you would be looking to gain from it. Or how much time you would want/expect to drop off of those times. Looking at your signature (sounds like a really nice car btw), you seem to have a lot more done to the car and only a time that's better than mine by 0.1 seconds. It's possible that the reason my car is "keeping up" is because of the AWD controller. I also don't know when you obtained your PB, so I could be way off. Like I said before, I think real world, it's another tenth or 2. But that can make or break a race. Everything comes down to individual value for whosever car it is. Good luck next season only a few more months before I can get back to track.

Thanks! On facebook someone was saying they did not like the way launch's felt with the AWD tune and took it out.

 

[BadTrainDriver]

Thanks! On facebook someone was saying they did not like the way launch's felt with the AWD tune and took it out.

I had to have Lozic send me three different AWD units until one worked correctly. Once it worked correctly, it definitely launched better with it than without it.

 

[sweetboyed]

Thanks! On facebook someone was saying they did not like the way launch's felt with the AWD tune and took it out.

There were some mistakes in the beginning.
There were several versions of the AWD ECU, so there were errors in initial sales,
I sent the AWD ECU back to the new settings to a customer who said there was a problem with the AWD ECU.

And, I figure out exactly what I did wrong with the AWD ECU.

 

[BHamm]

Interesting. There is a used on for sale here, i wonder if it would be among the ones that had issues or not.

 

[GennyGuy]

Interesting. There is a used on for sale here, i wonder if it would be among the ones that had issues or not.

I don't know. I received mine in October and have had zero issues. Took it on a windy road yesterday and it felt really good dealing with all the directional and speed changes I threw at it. I'm just looking to see more of our cars running 10s, myself included hopefully this year.

 

[Slip_Angle]

I don't know. I received mine in October and have had zero issues. Took it on a windy road yesterday and it felt really good dealing with all the directional and speed changes I threw at it. I'm just looking to see more of our cars running 10s, myself included hopefully this year.

Can you describe the feeling in more detail?