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BMS VW GTI JB4 info thread
- Thread starter George Smooth
- Start date
George Smooth
Drag Race Newbie
- Location
- South Africa
On the JB4 map 6 is low torque but very high boost at high rpm so its just a starter map for guys that want to try max things. I reckon use map 2 and when your ready with teh hardware on the car we can do a custom map 6 for the car.
Took the car out for a 60km drive - defiantly enjoying the added power on map1.
But, I do feel that it's adding the power like an on\off switch as was described as the feeling of a JB1.
There is a point in the accelerator pedal where it's noticeable as you can hear the engine tone changes.
It also feels like it kicks in with a delay - I press on the pedal and it roars about 0.5s later - what can I check to make sure all is working and setup well?
But, I do feel that it's adding the power like an on\off switch as was described as the feeling of a JB1.
There is a point in the accelerator pedal where it's noticeable as you can hear the engine tone changes.
It also feels like it kicks in with a delay - I press on the pedal and it roars about 0.5s later - what can I check to make sure all is working and setup well?
Davedough
New member
- Location
- Northern VA
Thanks guys. I'm pretty excited for tomorrow. This is my first non-cosmetic mod and I can't wait to feel how much more power my car has.
railroader
Autocross Newbie
- Location
- Yuma Arizona
I threw a cel today and the code was 3A44 which translated to a 14916 - Catalyst System; Bank 1 P0420 00 [232] - Efficiency Below Threshold problem or O2 sensor i did remove my cat and am messing with the spacer so i pretty much knew what it was and I could not clear it with the jb4 so when i got home i scanned it with my ross-tech and cleared the fault then. The code on the jb4 came up with no description available im not sure if this is one you guys have came across so if not then its another one for the list.
railroader
Autocross Newbie
- Location
- Yuma Arizona
Which DP did you put on?
With logging, you should be able to add more boost, especially in the upper rpms. Just log, raise boost in small increments (.5) and re log. Take your time with it.
JB4 Alone?
Ok im trying to decide if I should get a Flash tune and stack the JB4. Or use the JB4 alone.
2017 GTI Sport PP DSG
I think I know the answer but would like opinions.
Im concerned if I get the JB4 only, theres key parameters that I wont have changed without a Flash.
Im used to tuning with HP tuners, etc which I would call a Flash.
I been speaking to George and hes great. I never asked him this question.
Thank you in advance.
Ok im trying to decide if I should get a Flash tune and stack the JB4. Or use the JB4 alone.
2017 GTI Sport PP DSG
I think I know the answer but would like opinions.
Im concerned if I get the JB4 only, theres key parameters that I wont have changed without a Flash.
Im used to tuning with HP tuners, etc which I would call a Flash.
I been speaking to George and hes great. I never asked him this question.
Thank you in advance.
depth_charged
Ready to race!
- Location
- AZ
Glad to hear man! I'm still on the fence about what way I want to go for power, but along with the testimonies here, this just pushes me closer to the JB4.
Unless you absolutely need the speed limiter removed, you'll get everything you need and more with just the JB4.
depth_charged
Ready to race!
- Location
- AZ
Someone else can chime in, but I don't think the GTI has torque limiting like Ford does... I sold my Focus RS because of how neutered the car was in 1st and 2nd because of the aggressive torque limiting.