Jb4 / lozic ecu

[Marlon88]

I am thinking about getting a jb4 for logging. I have a lozic ecu and lozic tcu
I’m just wondering if having a jb4 helps
I just joined the tunes world and I’m not sure of everything yet

 

[ChaneRZ]

Absolutely!

 

[Marlon88]

Absolutely!

Tell me what’s the benefits are

 

[Terry@BMS]

Useful for logging, fine tuning, boost by gear, etc, etc.

 

[MFNTRBO]

Plus if you upgrade to WMI or CPI JB4 can manage that

 

[Marlon88]

Useful for logging, fine tuning, boost by gear, etc, etc.

Are the fuel wires a good addition as well?

 

[ChaneRZ]

Disable fuel wires if you have an ecu tune.

 

[Marlon88]

Plus if you upgrade to WMI or CPI JB4 can manage that

Plus if you upgrade to WMI or CPI JB4 can manage that

Disable fuel wires if you have an ecu tune.

Disable fuel wires if you have an ecu tune.

Why’s this ? And shoot me a message

Are the fuel wires a good addition as well?

Also for my lozic tunes, will a ewg add on be a good addition ?

 

[Yves998]

EWG+tune is the worst lol don’t even think about that.

You want JB4 for log for now and if you’re switching to WMI or CPI you can use JB4 to control WMI/CPI.

Also if future WMI/CPI is your plan, don’t even think about getting a revision to 1.5/1.6 bar tune from lozic, if you are on 1.5/1.6 bar now, a revision to 1.3/1.4 bar is worthy. His 1.5/1.6 bar tune is pretty much garbage for WMI/CPI, huge boost spike to 22 psi and tapering to 16~17 psi is NOT what you want. For his 1.3/1.4 bar tune especially for his 93 boost curve, it’s way easier to add boost with JB4 cuz lower boost spike allows you to add boost to all rpms instead of 5500 6000 6500 only, which is buggy to do so.

 

[GennyGuy]

Why’s this ? And shoot me a message

Also for my lozic tunes, will a ewg add on be a good addition ?

Jb4 will be great for logging. Driving a tuned vehicle with no logging us asking for trouble.

The fuel wires will basically cause interference with your fueling that you don't want. Ends up being kind of confusing for your engine. Let the ecu handle the fueling.

Don't use ewg wires. You risk f*cking up your wastegate and it ain't worth it.

 

[tshing02]

Jb4 will be great for logging. Driving a tuned vehicle with no logging us asking for trouble.

The fuel wires will basically cause interference with your fueling that you don't want. Ends up being kind of confusing for your engine. Let the ecu handle the fueling.

Don't use ewg wires. You risk f*cking up your wastegate and it ain't worth it.

I previously had the JB4 running with Fuel and EWG wires. Currently have them both off-running Lozic 1.5 bar ECU/TCU Combo. Using the JB4 for Logging and considering CPI or WMI as the next step. Should I totally disconnect the fuel and ewg wires from the harness or is setting them off sufficient?

 

[CraigS]

Hopefully you're not running lozic ecu without logging the first several runs to make sure you're safe. I aborted my first run because timing pull was so high. Get jb4 and don't go WOT until you can verify

 

[tshing02]

Hopefully you're not running lozic ecu without logging the first several runs to make sure you're safe. I aborted my first run because timing pull was so high. Get jb4 and don't go WOT until you can verify

You're talking average IGN or IGN1-6? Whats considered safe? Please elaborate!

 

[CraigS]

Ign 2 through 6 staying under 4 is the big one,but there's some others. fuel trim staying under 50, hpfp maintaining pressure. Search the forum for how to read logs. I'm not the one to learn from.

 

[tshing02]

Ign 2 through 6 staying under 4 is the big one,but there's some others. fuel trim staying under 50, hpfp maintaining pressure. Search the forum for how to read logs. I'm not the one to learn from.

Thanks Craig.