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Burger Motorsports JB4 high performance tuner for Genesis vehicles

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Are changing the spark plugs an absolute requirement?

No, you can also regap down the factory plugs. But the factory plugs are a huge blemsish on an otherwise apparently well designed engine.
 
No, you can also regap down the factory plugs. But the factory plugs are a huge blemsish on an otherwise apparently well designed engine.
You are allowed to change the plugs right? I know it's a pain. But some folks say the dealer will shit on you if you do.
 
Thing is...if you put better plugs in YOUR car...what does the dealer care. If you took out the stock and put in garbage...ok maybe they would have a point.


Well if you put in better plugs with a smaller gap, they're going to know why. That may or may not be a problem, depending on the dealer but a good mechanic will recognize the change and likely know what prompted it. Even if they don't link the plugs with the tune, if the new ones have a gap outside of recommended specs and you run into an engine problem, you may be in a position to get push-back when requesting repairs. I'm guessing they're usually not going to care that much (unless maybe the engine has been totally fried) but for those who want to avoid that risk, whatever size it may be, the narrow-gap plugs may be a red light to the mechanic and service manager.
 
You are allowed to change the plugs right? I know it's a pain. But some folks say the dealer will shit on you if you do.

Generally speaking you can replace OEM parts with aftermarket replacement parts. Like, an aftermarket oil filter for example. Plugs to me fall in the same replacement category. But if you then later have some issue they want to blame the plugs (or oil filter) on, they could deny coverage.

I think keeping stock plugs in the garage and swamping back later if ever needed to diagnose some issue makes the most sense.
 
the best 0-60 run so far is 4.4 seconds on a stock stinger. but there's more to it then just the numbers. if terry's previous best was 5.0, then 4.5 would be that .5 second improvement. he's not out there all day trying to get the best times, just trying to gauge what the tune is doing.

but yes the real question here is how much difference the tune is making. if it's making a lot more power, expect better times. i'm going to guess that most of us won't get great times without a lot of practice.

EXACTLY..... !
 
In reference to 0-60 times, keep in mind that the AWD stinger is slower than the RWD version. The 4.7 sec estimate is for the RWD.

Counter intuitive? Yes. Yes it is. Hyundai's ECU seems to limit boost building when attempting to launch from a stand still. I'm hopeful that someone will be able to circumvent this with a piggy back unit or even a full reflash of the ECU.

Anyway, I was planning on messing with the factory plugs to begin with. I love to tinker. Planning on documenting everything as I go along.

JB4 has definitely caught my eye... (Thank you, Terry, for that example fuel/timing/boost/etc map) Though I need a G70 first.
 
For those who didn't hear, we hit 440whp/520whp on the Stinger JB4... Can't wait to get some G70 customers as it's all fully compatible! :)


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For those who didn't hear, we hit 440whp/520whp on the Stinger JB4... Can't wait to get some G70 customers as it's all fully compatible! :)


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Very impressive! I'm sure once the G70 is released in the U.S., we'll see lots of people with JB4s. The Stinger crowd is really loving it so far...
 
So I have to ask. What are the differences between this and the best RaceChip? RaceChip is more expensive...and has more torque.
 
For those who didn't hear, we hit 440whp/520whp on the Stinger JB4... Can't wait to get some G70 customers as it's all fully compatible! :)


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Impressive. Thank you for posting the Dyno sheet along with AFR's. Speaking of which, things look a bit lean after 5k rpm. I'd feel safer with at least 12:1, but it looks like it's hitting stoichiometric at peak rpms.

I wonder if it's hitting the max injector duty cycle. Or perhaps the fuel pump is maxed out?
 
Impressive. Thank you for posting the Dyno sheet along with AFR's. Speaking of which, things look a bit lean after 5k rpm. I'd feel safer with at least 12:1, but it looks like it's hitting stoichiometric at peak rpms.

I wonder if it's hitting the max injector duty cycle. Or perhaps the fuel pump is maxed out?

That specific run I was evaluating a leaner top end AFR for the E30 mix. Richened it back up in later: N54Tech.com - Your Source for International Turbo BMW Racing Discussion - View Single Post - Kia Stinger JB4 Map Guide, Firmware Updates, and Details

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So I have to ask. What are the differences between this and the best RaceChip? RaceChip is more expensive...and has more torque.

No it doesn't, they publish imaginary numbers rather than actual dyno runs at the wheels. I wrote this reply to a similar question about the differences between the tuner boxes, JB4, and flash mapping:

Terry@BMS said:
As a quick summary there are basically three tuning options:

The tuner boxes:
These include RaceChip, Uncle, VR, AFE, TMC, and literally countless others sold under various brand names. They all connect to the same sensors (TMAP, MAP, and sometimes camshaft to read engine speed) and all do the same thing. Offset boost to the DME fooling it in to raising it's boost target. You can make more power this way but without fuel control, CANbus, and more advanced functions have serious drawbacks that will become clear when you see the other options.

The JB4:
This system is unique in that also attaches to the CANbus system giving it access to every vehicle sensor, not just sensors it happens to be physically connected to. The JB4 can also scan data from the ECU (and other modules in the vehicle) such as fuel trims, ignition advance, knock and other tuning information that isn't read from sensors at all. With all the data coming in the JB4 can provide much smoother, stronger, and safer boost remapping. A basic example is the JB4 is the only system that actually incorporates the gas pedal input as part of its mapping, or oil/water temperature to limit boost until the engine is up to temp and taper it if it over heats. There are hundreds of examples in this category.

In addition to boost remapping the JB4 has many additional outputs that can be used for things like fuel control, timing control, water/meth integration, flex fuel integration, etc. Fuel control specifically has proven HUGE with the Stinger platform. See our previous dyno comparison with it. The JB4 has optional blue tooth connectivity for a robust phone app that lets you adjust your mapping on the fly, record and view detailed engine data, make adjustments, etc. User adjustable boost by gear for traction, tons of potential expansion in to other features as development continues like an in dash boost gauge, launch modes, and who knows what else. We've got tons of extra inputs/outputs on the Stinger JB4 control board itself, and a modular harness system, so as we want to add new things it's just a plug in harness patch and firmware update away.

Worth noting: It appears LAP3 is coming out with a product called "ProTuner" similar to the JB4 in terms of it's capability, but they will never recreate our software magic and support levels.
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The Flash Maps:
Flash tuners adjust the tables directly within the ECU to revise the power targets. There are maybe 300 different tables depending on how complete your DAMOS is. By changing the ECU tables directly you have a lot more control over what is changed, but a lot more complexity and a lot more opportunity to make unintended mistakes.

With flash tuning you are constrained by the ECU's logic path. You can't just go and make up new logic paths like you can with the JB4. For example we can set the JB4 to scale boost on perceived wheel spin, gear, ethanol mixture, or meth flow. We can set the JB4 to go to a low boost map if boost exceeds some target. With flash mapping you are only able to change values in tables not the logic itself while with the JB4 we can implement whatever logic path we can think of as long as the data is there.

Generally speaking you can normally make a little more power with flash mapping because some parameters like valve timing just can't be adjusted via a piggyback. For example to date I think Torq has made 450whp with their flash mapping, while we've only made 441whp with the JB4. But the major drawback to flashing is that once flashed there is a permanent trace left behind within the ECU that is was modified. There is no going back even if you flash it back to stock. Another drawback is flash mapping is money spent. You can't remove and resell it like you can with a JB4. It seems for the Stinger you can't even change maps at home yet, still need to buy a separate tool for logging and diagnostics, can't change the maps yourself, etc.

Worth noting: The JB4 is a very useful tool for flashed cars as well. Many use it for wireless logging, and minor tuning adjustments when they want to run higher octane fuels at the track, limit boost in lower gears for traction, etc. The JB4 is a useful tuning tool for both stock flash maps and modified flash maps alike.

 
Perfect...thank you. My final product choice is quite obvious :)
 
So...Terry...question for you. I heard that replacing the spark plugs is a PITA. What happens if you keep the stock plugs?

Trying to figure out if the plugs have to be considered into the cost and time of getting the JB4 up and running.

Thanks !
 
If the G70 is anything like the Stinger, regapping the stock plugs is required for any tune or you will get misfire faults. Takes maybe an hour to pull the plugs so you're better off just reinstalling Denso 5346 plugs that are $8 each.
 
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