Welcome to the JB4 Discussion and Support Forum

[Lead Head]

To the dareck, when you went with the recommended plugs over the stock, were the gapped for you, or was it not needed?I'm a pretty big amateur when it comes to these types of modifications, I appreciate any input you can share!

 

[Sal Collaziano]

To the OP, when you went with the recommended plugs over the stock, we're the gapped for you, or was it not needed?I'm a pretty big amateur when it comes to these types of modifications, I appreciate any input you can share!

The Denso plugs can be used right out of the package. They don't need to be gapped...

Actually, as seen below, they should be regapped to .022...

 

[dareckibmw]

The Denso plugs can be used right out of the package. They don't need to be gapped...

Actually, they need to be regapped to .022 by Terry's recommendation. My indy did that before changing them.

 

[Sal Collaziano]

Actually, they need to be regapped to .022 by Terry's recommendation. My indy did that before changing them.

Thank you! Apparently I'm out of the loop. I will update my post...

 

[Lead Head]

Thank you! Apparently I'm out of the loop. I will update my post...

Thanks to the both of you for replying ! I saw that there is a tool they also sell for gapping the plugs. Is that something that's difficult to do solo? I live in city where I'm not sure how reliable tuner shops are, so I try to do stuff where I can, or until the complimentary maintenance of the G80 Sport falls off xD

 

[Sal Collaziano]

Thanks to the both of you for replying ! I saw that there is a tool they also sell for gapping the plugs. Is that something that's difficult to do solo? I live in city where I'm not sure how reliable tuner shops are, so I try to do stuff where I can, or until the complimentary maintenance of the G80 Sport falls off xD

Are you referring to this?

Spark Plug Gapper - Kia Stinger dot com

 

[dareckibmw]

I'm sure he meant their tool KIA Stinger Denso 5346 Spark Plugs - BurgerTuning.com

@Lead Head ....if by any chance you live in Chicagoland, I'd recommend the shop for you.

 

[Lead Head]

I'm sure he meant their tool KIA Stinger Denso 5346 Spark Plugs - BurgerTuning.com

@Lead Head ....if by any chance you live in Chicagoland, I'd recommend the shop for you.

Edit: saw a video using that tool and seems simple enough, just need to be quite careful to not mess with the puck area. So after getting the JB4, gapping the plugs you mentioned earlier on the thread, is tuning w. a shop necessary or will I be good to go?

Yes that is the tool!

I am not there, but I'm certain your recommendation would have been perfect. Unlucky me lol thank you for offering

 

[dareckibmw]

Start calling any auto shops in your area and ask, it isn't rocket science, every mechanic should be able to do it under 2 hours, that includes regapping and changing the plugs.

 

[Lead Head]

Start calling any auto shops in your area and ask, it isn't rocket science, every mechanic should be able to do it under 2 hours, that includes regapping and changing the plugs.

Thanks dareck I'll definitely look into that,

You have the JB4, plugs & gap, any other mods you've done since? And I was reading descripton of JB4, says basically car drives like stock until you punch it, would you say that's accurate from your experience?

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[dareckibmw]

I noticed you updated your previous post... so, installing the tune is pretty straight forward job. I didn't do it myself as my car was in my friend's body shop, so he even installed it for me, he did this so "professionally" almost invisible, to the point I had to ask him where those two plugs are connected, LOL
I'd say, it would take me less than 30 min.

You have the JB4, plugs & gap, any other mods you've done since? And I was reading descripton of JB4, says basically car drives like stock until you punch it, would you say that's accurate from your experience?

No other modes, just the tune. With enormous amount of torque (~515tq) cars pulls so easily from any rolling speed 60-80mph, so much fun to drive it now.

 

[Lead Head]

I noticed you updated your previous post... so, installing the tune is pretty straight forward job. I didn't do it myself as my car was in my friend's body shop, so he even installed it for me, he did this so "professionally" almost invisible, to the point I had to ask him where those two plugs are connected, LOL
I'd say, it would take me less than 30 min.



No other modes, just the tune. With enormous amount of torque (~515tq) cars pulls so easily from any rolling speed 60-80mph, so much fun to drive it now.

How fortunate! Sounds like a good friend and a good mechanic to make it near invisible lol

Man reading you write about your excitement has got me all riled up to go after it now!

I saw the JB4 was one of only two so far featured on this forum, the other being the GTS brand. Is one been around longer than the other? Don't see much performance difference, but JB4 looks somewhat more simple to install..

 

[dareckibmw]

How fortunate! Sounds like a good friend and a good mechanic to make it near invisible lol

Man reading you write about your excitement has got me all riled up to go after it now!

I saw the JB4 was one of only two so far featured on this forum, the other being the GTS brand. Is one been around longer than the other? Don't see much performance difference, but JB4 looks somewhat more simple to install..

It seems that Genesis owners aren't really interested in tuning their cars like that, hence not much action is going on here, the new cars with turbos are different story, Kia Stingers owners are all over JB4 and other tuners on Stinger's forum.

Check it out The Ultimate Kia Stinger Tuning Forum

 

[Beefer]

The Denso plugs can be used right out of the package. They don't need to be gapped...

Actually, as seen below, they should be regapped to .022...

So what is the point of getting the new plugs? I thought the new plugs were ready to go.

Why not just regap the original plugs?

 

[Spanky61]

A gap that is too close will not deliver the proper amount of spark to satisfactorily cause the air fuel mixture to burn cleanly. While a gap that is too wide may not allow the ignition system to fire the plug at all. Spark plugs that are not gapped properly will cause the engine to either skip firing, or ignite too soon in the compression stroke. 3.3L Turbo Stinger & G70 spark plugs are misfire prone.

Plus, heat range for the plugs is also important. Hotter combustion especially in the 3.3T requires a higher heat range plug as is utilized with the JB4 tuner. Denso 5346 are a higher heat range insulator used in most tuners.

 

[Beefer]

Ok...so the point of the new plugs is for a higher heat range. Then...they need to be regapped anyway.

Got it (I think).

 

[Spanky61]

Yes, always check the gap of the plugs. They can be compressed in the box as they are moved around. The electrode is not hard to compress if it's tapped or bumped. BMS has a really good tool also Billet Spark Plug Gapper Tool.

 

[Caraddict22]

A gap that is too close will not deliver the proper amount of spark to satisfactorily cause the air fuel mixture to burn cleanly. While a gap that is too wide may not allow the ignition system to fire the plug at all. Spark plugs that are not gapped properly will cause the engine to either skip firing, or ignite too soon in the compression stroke. 3.3L Turbo Stinger & G70 spark plugs are misfire prone.

Plus, heat range for the plugs is also important. Hotter combustion especially in the 3.3T requires a higher heat range plug as is utilized with the JB4 tuner. Denso 5346 are a higher heat range insulator used in most tuners.

Actually started to correct you until I read the way you worded it again. But for anybody who doesn't know, higher power/pressure/temps you want a colder plug, and with Denso labeling a "higher heat range" plug is actually a colder plug. So don't just assume because the heat range number for whatever plug you are running is higher than OEM that it means it's a colder plug. Example: I don't know the oem plug of the 3.3 but for the 3.3 rockauto only lists one plug. The champion 9047 (RER12WMPB4) has a heat range of "12" while the Denso BMS recommended were 5346 (IKH24) that have a heat range of "24". So it can be confusing because not only do the numbers climb as a Champion plug goes up the scale and a Denso plugs number will lower as it goes up the scale. But it also can confuse people because you might think Champion is way colder of a plug or something because the number is much lower but the numbering systems are way different so you have to find the chart and cross-reference the numbers to see that the Denso is 3 steps colder than the Champion.

 

[vghostine]

Ok, finally..... here are some numbers, car is stock, except the spark plugs. Recommended by Terry, I changed them to Denso 5346 and the car runs on 93 octane.

1st. pull was without the tune, so it was bone stock

2nd. pull - Map1

3rd. pull - Map2

All 3 pulls were in "Sport Mode" ....the car pulls like crazy now, a ~100tq more means something! lol


View attachment 15677View attachment 15679

Omg I love what I’m seeing!!! Btw that’s an incredibly beautiful colour
But those dyno numbers are impressive. Its a Hyundai product after all and its producing that much HP and torque. I like a lot. I have to consider this. Is the JB4 tune hidden to the mechanics or not? I mean does it have a revert back to normal mode and stealth in that they cannot detect it?

 

[dareckibmw]

Omg I love what I’m seeing!!! Btw that’s an incredibly beautiful colour
But those dyno numbers are impressive. Its a Hyundai product after all and its producing that much HP and torque. I like a lot. I have to consider this. Is the JB4 tune hidden to the mechanics or not? I mean does it have a revert back to normal mode and stealth in that they cannot detect it?

It is kinda hidden, but I rather take it off before going to the dealer. I'll copy/paste my own post from yesterday:

I didn't installed my JB4 myself in my G80 sport, my friend did all for me, but as far as I know and I see, there are only two connectors to unplug.
Look at the pictures....you can barely see the JB4 box hidden behind the fuse box and those wires looks like OEM installed. I bet you wouldn't see them if I didn't marked them, lol
Yep, you can take it off within 5 min.

No, it's not detectable by the dealer, if you remove the unit before your services. When you do, it just reverts back to the original ECU and Tune. This is not a ECU Flash tune. ECU Flash tunes show up on the ECU flash counter. A piggy back tuner modifies the signal after the ECU and does not effect the original ECU OEM Factory Tune.

Your safe, don't be concerned.