Lozic ECU + TCU + AWD Tune

[Jaybone]

I have only the TCU (shift pressure 2) installed right now with JB4 on map 3. The shifts in comfort are perfect. In sport the shifts are fast and firm but the downshift from 2 to 1st when coming to a stop is a bit jerkey, but not terrible. Overall it is great. I have not had a chance to launch the car yet

Is your car quicker? Any draggy or just butt dyno?

 

[CeramicGT001]

I would say yes (although I would get Pressure Level 2). Yes it builds revs and boost pretty quick so depending on the conditions and factors determines how long to hold the brake if I understand correctly.

I did a launch control last night with a friend and it was so lame..can’t wait to spin all 4 wheels lol

 

[Jaybone]

I did a launch control last night with a friend and it was so lame..can’t wait to spin all 4 wheels lol

That’s the one thing Kia could of done a lot better is the launch. I think they did it for longevity but could of figured out something. As the car is a slug off the line unless you brake snip or now use this tcu.

 

[Kamauxx]

That’s the one thing Kia could of done a lot better is the launch. I think they did it for longevity but could of figured out something. As the car is a slug off the line unless you brake snip or now use this tcu.

That 10/100k warranty, mane!

 

[buddy712]

Is your car quicker? Any draggy or just butt dyno?

No draggy (still on list of things to get) but for sure the shifts are faster, there is no doubt about it. I will try and do an overlay of the logs before the TCU and after on map 2 to show the boost recovery between shifts

 

[Jaybone]

No draggy (still on list of things to get) but for sure the shifts are faster, there is no doubt about it. I will try and do an overlay of the logs before the TCU and after on map 2 to show the boost recovery between shifts

I’m thinking this is my route and keeping my jb4 but I want to make sure for $950 I’m getting some gains with the tcu. Appreciate the follow up

 

[Corleone1]

Been following this thread for a while but this is my first post as I was able to acquire a Lozic TCU from a forum member here.

Only had it installed for a couple days so haven't done a lot of driving yet. Still, the difference is noticeable I believe mine has is the -5%, Pressure 3 Torque Limit Off. Sport has very noticeable and fast shifts and tends to really want to stay in a low gear with medium and even light throttle driving. The car seems to only want to upshift if you tap the brakes which I think has been mentioned before or in the video. The downshifts coming to a stop are less than ideal but I find if I have it in manual really helps smooth it out. Comfort is great, shifts are faster but not harsh.

I am by no means an expert with all this and I don't have many chances to safely try launch control. Before the TCU I hardly ever spun the tires but now it's every time so I need more practice. I got Nitto's on the front as my P4S wore super quick from a bad alignment, not sure how much of a difference that makes. Still, car seems fast and the TCU is for sure an upgrade over stock.

I've attached logs (a first for me!) of the two days with the Lozic TCU and settings of the JB4. ANY suggestions would be greatly appreciated but I know this is a Lozic thread so I understand if no one wants to haha. Thanks and sorry for the long post!

Logs looks good. Compared to mine JB4 with adjusted Map 5, similar really. I can see that shifts are faster, ECU settings seems very similar with fuel, ignition. Less boost drop in shifts also, probably for TCU can handle that with higher pressure.

 

[SnowyGT2]

Logs looks good. Compared to mine JB4 with adjusted Map 5, similar really. I can see that shifts are faster, ECU settings seems very similar with fuel, ignition. Less boost drop in shifts also, probably for TCU can handle that with higher pressure.

Thanks. Shifts are sooner for sure. Previously, launch control with automatic shifts would seemingly bounce off rev limiter.

 

[GRN D3MÖN 22]

OK everyone surge is fixed. So far testers have said they feel nothing and all is good. Light switch boost is a part of the ECU and how it tunes but with no surge should feel more comfortable. As far as I know those were the only 2 issues so we should be good to go.

 

[Jaybone]

OK everyone surge is fixed. So far testers have said they feel nothing and all is good. Light switch boost is a part of the ECU and how it tunes but with no surge should feel more comfortable. As far as I know those were the only 2 issues so we should be good to go.

So if I place an order for the ecu tune should be good to go now

 

[GRN D3MÖN 22]

So if I place an order for the ecu tune should be good to go now

 

[Jaybone]

What was your bar you ordered again?

 

[GRN D3MÖN 22]

What was your bar you ordered again?

I'm way out there lol. But most are getting 1.5bar. My first ecu with the surge comes today but I'll be at work so won't install till tomorrow. Second ecu with no surge will come next week. Can't wait for that one.

 

[Jaybone]

I'm way out there lol. But most are getting 1.5bar. My first ecu with the surge comes today but I'll be at work so won't install till tomorrow. Second ecu with no surge will come next week. Can't wait for that one.

So do I have to say anything when ordering regarding the surge? Or just order as normal?

 

[GRN D3MÖN 22]

So do I have to say anything when ordering regarding the surge? Or just order as normal?

Order as normal, new programed ecu will go out.

 

[Jaybone]

Order as normal, new programed ecu will go out.

Hopefully for $2400.00 its faster then my JB4 on Map 7

 

[Kamauxx]

Hopefully for $2400.00 its faster then my JB4 on Map 7

It's $2400? Or is that ECU+TCU?

 

[BUZER]

It's $2400? Or is that ECU+TCU?

All together Its $2,400 as of now

 

[BUZER]

Anyone have the Backfire Tune or plan on getting It?

 

[GRN D3MÖN 22]

Hopefully for $2400.00 its faster then my JB4 on Map 7

All reports so far say yes, but you can Go 1.7bar if you have the fuel to run it.