[JCB]

Go back to firmware explanations in page 1 of this thread. I believe it is in User Settings - Boost Drop 1st, 2nd, 3rd. Looks like this is a subtract from whatever map you are running. I would enter into those settings and see if it does indeed lower the boost in Map 5 like you are looking for. I don't see much discussion about it here or the Q50/Q60 forum.

[Terry @ BMS]

Originally Posted by 24VALVES FROM HELL

Question for the experienced folks.
Vehicle is a 2017 Q60 non rs rwd.
Lower down ***** and bms intakes.
Jb4 with fuel wires running 93 octane.

I've been doing a lot of testing on diferent maps on different gears reviewed the longs to see how far I can get with more smoothly boost, timing and afrs curves.
The question is.
Can boost by gear be setup on map 5?
I'm trying to see if I can get 13 psi in fisrt, 15 psi in 2nd and 16 in 3rd. Of course if timing and afrs look good.

Thanks in advance.

The boost by gear reductions are active for all maps.

[24VALVES FROM HELL]

Thanks Terry. I think I'm getting there.

[Redgoyabean]

Did 3 pulls with the ewg wires installed ( no fuel wires yet) on map 6 with the duty bias set to 40 from 4.5k through 7, was pulling time so ando adjusted. Tell hows it looking.. thanks.

[azsuptt]

Here is a Quick Map 3 log for stock RS
P50_M3_R1_200926_0815.csv

A Member Mention I will benefit from Fuel Wires, I do have them but since Passenger side is not as easy not being able to connect. Any Inside on how they will help from Attached Map.

Thanks in advance

[JCB]

The fuel wires will lean out the AFR at higher RPM. Where you see low 11 values they will be bottom out at high 11 or low 12. This provides a bit more power at high RPM. Many run without installing them, so no need to rush installing them. Best if you can get someone with small hands to help!

[JCB]

Redgoyabean - these logs look much better than the one you posted 09-20-2020, 08:08 AM. Still show a drop to 2.5 at 4500 -5500 RPM (not sure it is enough to be concerned about). Maybe set boost target at 6.5 in that range to see if it helps if you want to be really careful. Maybe someone else will chime in if I am off base on that concern.

[Redgoyabean]

Originally Posted by JCB

Redgoyabean - these logs look much better than the one you posted 09-20-2020, 08:08 AM. Still show a drop to 2.5 at 4500 -5500 RPM (not sure it is enough to be concerned about). Maybe set boost target at 6.5 in that range to see if it helps if you want to be really careful. Maybe someone else will chime in if I am off base on that concern.

Thanks for the insight bro. I rarely ever go WOT to be honest so im not really beating on the car. Definitely going to lower the boost in that rpm range. 1 quick question, trying to figure out how lowering my duty bias from 50 to 40 between 4500rpm n 7000rpm help with my timing. Is it that same as if I simply lowered the boost in the same rpm range. From my understanding the wastegate bypasses the turbos. Still learning all this. Thanks.

[JCB]

I am still learning also - but what you say makes sense. Allows more exhaust gas to bypass the turbos, thereby allowing more gradual build of boost. The most frequent positive feedback about addition of the wastegate control wires is that it allowed boost to build MORE suddenly that drivers feel in the "butt dyno". Stands to reason that lowering the bias would lower that effect. Possible the more gradual build allows the car to adjust in other ways before timing is pulled?

[Vrdirtty]

Hi everyone new jb4 owner here. I’m hoping you can take a look at my map 2 log. I’m on 91 fuel and at sea level. The car is all stock 2018 3.0t luxe. I have the fuel wires hooked up I didn’t see in setting where to turn them on thank you.

[jrobohm]

Originally Posted by Vrdirtty

Hi everyone new jb4 owner here. I’m hoping you can take a look at my map 2 log. I’m on 91 fuel and at sea level. The car is all stock 2018 3.0t luxe. I have the fuel wires hooked up I didn’t see in setting where to turn them on thank you.

Fuel Wires - Check 1st post in this thread.

Optional fuel control wires:

Dyno Test: N54Tech.com - International Turbo Racing Discussion - View Single Post - Infiniti Q50 3.0t VR30DDTT Red Sport and Silver Sport BMS Stage1 JB4

Cliff Notes: Short fuel wire w/ resistor goes in spot 21, long wire goes in spot 20, and both wires then posi-tap to the white signal control wire in the primary o2 sensors. JB4 v6+ firmware required, to enable fuel control set FutureUseD bit0 on.

Options (FUD) bit selections as of v8 firmware:
fud.0 - Enable fuel control wires
fud.1 - Test AFR algorithm
fud.2 - Disable warmup safety
fud.3 - Don't use
fud.4 - Disable over boost, run lean, fuel pressure safety
fud.5 - Disable EWG offset
fud.6 - Vehicle is an RS
fud.7 - Linear pedal input

[Vrdirtty]

Thank you for your help I don’t see FUD 0 But I see bit 0 in set options is that the same option?

Originally Posted by jrobohm

Fuel Wires - Check 1st post in this thread.

Optional fuel control wires:

Dyno Test: N54Tech.com - International Turbo Racing Discussion - View Single Post - Infiniti Q50 3.0t VR30DDTT Red Sport and Silver Sport BMS Stage1 JB4

Cliff Notes: Short fuel wire w/ resistor goes in spot 21, long wire goes in spot 20, and both wires then posi-tap to the white signal control wire in the primary o2 sensors. JB4 v6+ firmware required, to enable fuel control set FutureUseD bit0 on.

Options (FUD) bit selections as of v8 firmware:
fud.0 - Enable fuel control wires
fud.1 - Test AFR algorithm
fud.2 - Disable warmup safety
fud.3 - Don't use
fud.4 - Disable over boost, run lean, fuel pressure safety
fud.5 - Disable EWG offset
fud.6 - Vehicle is an RS
fud.7 - Linear pedal input

[jrobohm]

On the JB4 (IOS) application - it is under User Adjustment Settings - Options (just below Future Use A) - Bits - flip Bit0 On (Green). Be sure to save your configuration and go back to double check it.

[Vrdirtty]

Hey senior members can you see what you think of my log and if I will benefit from the fuel wires thank you

Originally Posted by Vrdirtty

Hi everyone new jb4 owner here. I’m hoping you can take a look at my map 2 log. I’m on 91 fuel and at sea level. The car is all stock 2018 3.0t luxe. I have the fuel wires hooked up I didn’t see in setting where to turn them on thank you.

[JCB]

Sorry, not a senior member, but your log looks good to me. Fuel wires will provide some marginal benefit but not necessary. If you have them hook them up. I would try a similar pull on map 3 next.

[Vrdirtty]

Thank you! I have the fuel wires hooked up I’m going to flip them on and do some logs once it cools down in CA. Saw a video saying fuel wires on 91 octane was dangerous but I would think burger wouldn’t send them out if this was the case what are your thoughts ?

[JCB]

That topic has come up here before and Terry stated that the fuel wires provide a benefit on all types of fuel. I guess the logic of the concern is that a richer AFR would help deter engine knock (the fuel wires generally lean out the AFR at high RPM). You should be able to see problems in the logs if that is the case. Just log often and keep an eye on how your car is doing. I would do a similar run on Map 2 as you ran earlier without the wires active. Then try Map 3 and see if the car is still happy.

[bigmanfriday]

Hi I just got a JB1 (From someone who upgraded to the JB4). I am looking for the pin outs or photos of the wiring out of the 25 pin connector to the TMap connectors.

I searched the forum but could not find a bit of info on the wiring.
Thanks 2017 3.0t luxe Edition.

[JCB]

You might get better luck contacting them here.

jb4connect@burgertuning.com

[bigmanfriday]

i just sent them an email through the link you shared. Thank you.

[New2TheBoost]

Hi-

New to the forum and the platform. I’ve had the JB4 for about 2 weeks and just had some time to do some baseline logs. I was hoping someone could take a look and offer some comments. The pulls running map 3 and 4 were strong- not so much on map 5. I didn’t realize the fuel wires were turned off for map 3&5 pulls. I’m running Shell 93 octane.

Thanks

[JCB]

Something looks off on your ecu_psi. The values seem low, especially in 2nd gear. My 2018 Luxe is averaging between 8-9 PSI. In map 5 that results in total boost of 14-16PSI. On a recent zero to sixty run mine averaged 15.3 PSI in 2nd gear. All 3 of your runs have much lower ecu_psi in 2nd gear with the lowest being on the map 5 run. Your timing looks fine (ign_1). Don't see any reason your map 5 should not be faster than your map 3 and 4 except for the boost the ECU is calling for.

[New2TheBoost]

Originally Posted by JCB

Something looks off on your ecu_psi. The values seem low, especially in 2nd gear. My 2018 Luxe is averaging between 8-9 PSI. In map 5 that results in total boost of 14-16PSI. On a recent zero to sixty run mine averaged 15.3 PSI in 2nd gear. All 3 of your runs have much lower ecu_psi in 2nd gear with the lowest being on the map 5 run. Your timing looks fine (ign_1). Don't see any reason your map 5 should not be faster than your map 3 and 4 except for the boost the ECU is calling for.

Thanks for the input. Any ideas what might be causing this?

[24VALVES FROM HELL]

Map 5 commands more psi than map 3. Maybe that it? I check some of my logs on map 3 and the ecu_psi it's very similar to his. On the low side.

Note: I have a reduction on boost in 1st and 2nd gear.

[Terry @ BMS]

Originally Posted by New2TheBoost

Hi-

New to the forum and the platform. I’ve had the JB4 for about 2 weeks and just had some time to do some baseline logs. I was hoping someone could take a look and offer some comments. The pulls running map 3 and 4 were strong- not so much on map 5. I didn’t realize the fuel wires were turned off for map 3&5 pulls. I’m running Shell 93 octane.

Thanks

Map5 may just be too high of a target for the fuel/conditions. Map4 looks fine to me in the logs so stick with that.