[RUNSOK]

Well from all the brief info u provided, I think you are the perfect candidate for ecu unlock and custom tune.
You only drive the car few days a week. You have a plaid for daily. And as long as this is not a budget issue, hook up a with a reputable shop and send the ecu out. Start with off the shelf map, see if they satisfy you, then you can hook up with a tuner to get the absolutely max out of the car.

[Hit_Apex]

Originally Posted by SwankPeRFection

I love how everyone is bringing up baseline numbers and delta gains when the below was included as part of his original post. �� It doesn’t matter how much power he makes if he’s got those kinds of issues with the junk JB4, fighting what the ECU is trying to keep inline.

I love how you don't even ask what fuel he was running in your internet diagnosis - seems like a logical first question before launching into a piggy tirade. Saying JB4 is junk is like saying HAS is junk because there exists 3-way MCS coilovers. The JB4 is really good at what it does given the limitations of a piggy back. It's proven safe and relatively inexpensive - it's impossible not to be safe because the ECU protections cannot be overridden.

OP - fuel makes a huge difference, and those issues you describe sound fuel related - either bad or too low octane for the map you selected. For refernce:

[RUNSOK]

Originally Posted by Hit_Apex

I love how you don't even ask what fuel he was running in your internet diagnosis - seems like a logical first question before launching into a piggy tirade. Saying JB4 is junk is like saying HAS is junk because there exists 3-way MCS coilovers. The JB4 is really good at what it does given the limitations of a piggy back. It's proven safe and relatively inexpensive - it's impossible not to be safe because the ECU protections cannot be overridden.

OP - fuel makes a huge difference, and those issues you describe sound fuel related - either bad or too low octane for the map you selected. For refernce:

This is exactly what I was looking for. MS109 MAP... is that custom map you did on JB4.?

[Hit_Apex]

Originally Posted by RUNSOK

This is exactly what I was looking for. MS109 MAP... is that custom map you did on JB4.?

Yes, map 6 is the user configurable map. It was given to me but I will tell you on track (1/2 mile event) map 5 actually yielded better times. Take that with a grain of salt as my car is RWD so traction enters the equation. On the street and road course tracks I prefer map 3 for drivability - even with PSC2r in 295 (street) or Supercar 3r in 305 (track). You have xdrive so traction much less of an issue at these power levels.

[RUNSOK]

Originally Posted by Hit_Apex

Yes, map 6 is the user configurable map. It was given to me but I will tell you on track (1/2 mile event) map 5 actually yielded better times. Take that with a grain of salt as my car is RWD so traction enters the equation. On the street and road course tracks I prefer map 3 for drivability.

I see. And map 3 u run for road courses, is that on 93 octane or is it some kind of a low boost Ms109 map. And are u running map 3 because obviously too much extra power creates handling issues coming out of corners etc

[Hit_Apex]

Originally Posted by RUNSOK

I see. And map 3 u run for road courses, is that on 93 octane or is it some kind of a low boost Ms109 map. And are u running map 3 because obviously too much extra power creates handling issues coming out of corners etc

The road tracks I go to usually have Sunoco 100, otherwise I’ll run 91+E85 blended to E40 and which is what I run on the street. Only done one 1/2 mile event (cause it’s really not a drag car) and it was on MS109. Map 3 works best on technical tracks and helps keep temps lower. Keep in mind my car is just under 3500lbs with a quarter tank so it does quite well at ~600whp. Running it at 640whp is more exciitng but not necessarily faster laps on a technical track.

[bilal]

Originally Posted by Hit_Apex

The road tracks I go to usually have Sunoco 100, otherwise I’ll run 91+E85 blended to E40 and which is what I run on the street. Only done one 1/2 mile event (cause it’s really not a drag car) and it was on MS109. Map 3 works best on technical tracks and helps keep temps lower. Keep in mind my car is just under 3500lbs with a quarter tank so it does quite well at ~600whp. Running it at 640whp is more exciitng but not necessarily faster laps on a technical track.

try to run a water methanol system when using map3 on the track cause ur iat will shoot to the moon otherwise keep it on map2 with ur e blend, it will be more consistent than map3

[Hit_Apex]

Originally Posted by bilal

try to run a water methanol system when using map3 on the track cause ur iat will shoot to the moon otherwise keep it on map2 with ur e blend, it will be more consistent than map3

Good advice. I do have an additional heat exchanger (Carbahn) which I tested on a 99 degree track day and it kept IAT in check. I’ll have to look at my notes and logs but I did several laps starting on map 2 before 3. In extreme heat like that day I would probably leave at 2 to be safe.

[FRCFED8]

Want to pull the trigger and with all the reading have a few questions from what i have seen.

Map 1 and 2 with good 93’octane chicago gas is safe and with CAI and and stock downpipes should be around 550-570 AWHP~ on Dynojet? That seem around the logic?

Also has there been any catosphic engine failures on MAP 1 or 2 with folks using JB4?

I know got to pay to play just curious if there has been a casualty list.

[mike@x-ph.com]

Originally Posted by FRCFED8

Want to pull the trigger and with all the reading have a few questions from what i have seen.

Map 1 and 2 with good 93’octane chicago gas is safe and with CAI and and stock downpipes should be around 550-570 AWHP~ on Dynojet? That seem around the logic?

Also has there been any catosphic engine failures on MAP 1 or 2 with folks using JB4?

I know got to pay to play just curious if there has been a casualty list.

If you are running 91 octane, stay with map one unless BMS tells you otherwise.

If you are running 93 octane, you get to switch to Map 2

Do a Google search and a search on this forum for failures, and you will get your answer. OTS maps, especially when running the recommended fuel for them, are very safe.

[Former-Mopar]

Originally Posted by mike@x-ph.com

If you are running 91 octane, stay with map one unless BMS tells you otherwise.

If you are running 93 octane, you get to switch to Map 2

Do a Google search and a search on this forum for failures, and you will get your answer. OTS maps, especially when running the recommended fuel for them, are very safe.

I just purchased Jb4 for S58. I run 93 Octane on a stock car. Map 2 has every bad logs. The only way to run Map 2 smoothly is to add E85 to the tank. So basically stuck with Map1 because i dont want to be messing with fuel mixtures. I should have just gone the unlock route. Jb4 for S58 with Bluetooth and App will run you about $1k. I think your better off going with an Unlock, and Bootmod 3. You will get more power without fuel mixing. just my opinion.

[RUNSOK]

Originally Posted by Former-Mopar

I just purchased Jb4 for S58. I run 93 Octane on a stock car. Map 2 has every bad logs. The only way to run Map 2 smoothly is to add E85 to the tank. So basically stuck with Map1 because i dont want to be messing with fuel mixtures. I should have just gone the unlock route. Jb4 for S58 with Bluetooth and App will run you about $1k. I think your better off going with an Unlock, and Bootmod 3. You will get more power without fuel mixing. just my opinion.

Something is not right. Are u sure your 93 octane is legit. Like shell etc. Unlocking is a better option long term I am not debating that but map 2 is a 93 octane map pretty much you load it and forget it unless u bring new variables to the table.

[Former-Mopar]

Originally Posted by RUNSOK

Something is not right. Are u sure your 93 octane is legit. Like shell etc. Unlocking is a better option long term I am not debating that but map 2 is a 93 octane map pretty much you load it and forget it unless u bring new variables to the table.

Yep... Exxon, Chevron only thing i use. Not sure if the really hot weather is playing into it. I have had 4 logs and they all pretty sucked.

Kinda disappointed in the Jb4 with Map2.

[M4Lou]

Originally Posted by Former-Mopar

Yep... Exxon, Chevron only thing i use. Not sure if the really hot weather is playing into it. I have had 4 logs and they all pretty sucked.

Kinda disappointed in the Jb4 with Map2.

[mike@x-ph.com]

Originally Posted by Former-Mopar

I just purchased Jb4 for S58. I run 93 Octane on a stock car. Map 2 has every bad logs. The only way to run Map 2 smoothly is to add E85 to the tank. So basically stuck with Map1 because i dont want to be messing with fuel mixtures. I should have just gone the unlock route. Jb4 for S58 with Bluetooth and App will run you about $1k. I think your better off going with an Unlock, and Bootmod 3. You will get more power without fuel mixing. just my opinion.

it sounds like you might have bad quality 93, try changing the gas station and see if that makes a difference in the logs

[bilal]

Originally Posted by Former-Mopar

Yep... Exxon, Chevron only thing i use. Not sure if the really hot weather is playing into it. I have had 4 logs and they all pretty sucked.

Kinda disappointed in the Jb4 with Map2.

check ur iat anything over 110 the ecu would pull timing and the afr gets very rich even if ur on e30 and thats normal in our cars...
imo to have a clean log and consistent you should run water meth with 650cc nozzle it will solve all ur problems

[RUNSOK]

Originally Posted by bilal

check ur iat anything over 110 the ecu would pull timing and the afr gets very rich even if ur on e30 and thats normal in our cars...
imo to have a clean log and consistent you should run water meth with 650cc nozzle it will solve all ur problems

I don't get it brother. Why just to run map 2 properly and safely now we need to mix it with e30 or e85 and on top of that we need meth injection with a certain size nozzle... this supposed tp be a plug and play at map1 and map 2 with the right fuel. It is crazy to have these requirements to run map 2.

Never fails just when I feel comfortable to pull the trigger on a Jb4 purchase, a post like this pops up and makes me think twice...

[BroDoze]

Be glad you’re not at 6,800ft with only 91 octane!

Map1 is all I can get! With Stg2 catless DPs n bolt-ons, it’d probably be a shitshow.

[bilal]

Originally Posted by RUNSOK

I don't get it brother. Why just to run map 2 properly and safely now we need to mix it with e30 or e85 and on top of that we need meth injection with a certain size nozzle... this supposed tp be a plug and play at map1 and map 2 with the right fuel. It is crazy to have these requirements to run map 2.

Never fails just when I feel comfortable to pull the trigger on a Jb4 purchase, a post like this pops up and makes me think twice...

u need meth if ur weather is hot other wise just add 10 liters of e85 for every 20 liter of fuel ur ethanol content will be e33 and ur good to go
for a safe(fast) map2 very simple

[Former-Mopar]

Originally Posted by mike@x-ph.com

it sounds like you might have bad quality 93, try changing the gas station and see if that makes a difference in the logs

Will give it a shot.

[Former-Mopar]

Originally Posted by RUNSOK

I don't get it brother. Why just to run map 2 properly and safely now we need to mix it with e30 or e85 and on top of that we need meth injection with a certain size nozzle... this supposed tp be a plug and play at map1 and map 2 with the right fuel. It is crazy to have these requirements to run map 2.

Never fails just when I feel comfortable to pull the trigger on a Jb4 purchase, a post like this pops up and makes me think twice...

If I could do it all over again (looking at price difference), I would just do the unlock with BM3.

[mike@x-ph.com]

Originally Posted by Former-Mopar

If I could do it all over again (looking at price difference), I would just do the unlock with BM3.

Bm3 is the best option on the market, i always recommend doing it if the the user is okay with sending their DME overseas and staying without a car for 1 week