[skyofx]

Just installed my jb4 stage 2 and I'm confused which map to run map 1 is for stock application but map 4 says stock and CAN active...I have the CAN enable so should I run map 4?

I know map 5 is auto tune and can run more boost...so waiting to run that until bored with map 1 and 4

[SRT14PimPin07]

It depends on the mods you have and the fuel you use. If your car is stock use Map 1. Map 4 is stock boost levels with CAN active. So if you have a cat-less downpipe and auto clear is on, you won't get a cell. Map 5 is best if you have aftermarket bolt on's and higher octane fuel, E85 or mix an octane booster. These are basic rules to follow. I also wouldn't recommend running map 2 unless you have cat-less downpipes and higher octane fuel.

[Johnny Boost]

Map 0 and Map 4 are the stock maps. Map 0 is the stock bypass map for dealership visits. Run Map 4 if you want to drive around with stock-like settings.

[Knobi]

Originally Posted by Johnny Boost

Map 0 and Map 4 are the stock maps. Map 0 is the stock bypass map for dealership visits. Run Map 4 if you want to drive around with stock-like settings.

+1

[skyofx]

Thanks

[j23a45m]

Originally Posted by SRT14PimPin07

It depends on the mods you have and the fuel you use. If your car is stock use Map 1. Map 4 is stock boost levels with CAN active. So if you have a cat-less downpipe and auto clear is on, you won't get a cell. Map 5 is best if you have aftermarket bolt on's and higher octane fuel, E85 or mix an octane booster. These are basic rules to follow. I also wouldn't recommend running map 2 unless you have Chargepipe cat-less downpipes and higher octane fuel.

edited that a little for you

[Kensley]

How do you run higher octane fuel?

[mike@x-ph.com]

Run map 1 or map 5.
Map 0 and map 4 will not add any power to your car. By stock they mean stock power. But maps recommended for stock cars are map 1 and map 5

[Bimmer28312]

I just had mine installed for 2 weeks now and you'll be happier running map5. If you can get fuel running higher octane even better for the seat of your pants experience.

[mashimarho]

Originally Posted by SRT14PimPin07

It depends on the mods you have and the fuel you use. If your car is stock use Map 1. Map 4 is stock boost levels with CAN active. So if you have a cat-less downpipe and auto clear is on, you won't get a cell. Map 5 is best if you have aftermarket bolt on's and higher octane fuel, E85 or mix an octane booster. These are basic rules to follow. I also wouldn't recommend running map 2 unless you have cat-less downpipes and higher octane fuel.

Could not have said it any better.

[Kensley]

Can I run a 50/50 mix of 91 and 100 octane on my car with jb4 stg? I only have intake and catless downpipe & straight pipe

[Ml3456]

Is there any way to set up or program a valet mode on some of the other maps?

Thanks, ML

[mustangivore]

Originally Posted by mike@x-ph.com

Run map 1 or map 5.
Map 0 and map 4 will not add any power to your car. By stock they mean stock power. But maps recommended for stock cars are map 1 and map 5

Searching around for even more opinions on JB4 S2 map1 versus map5 for stock 335i. Actually with BMW Performance Exhaust and running 93 octane, but no bolt ons.

Would you recommend map1 or map5 or either, and why?

[Jsoboti]

Originally Posted by RunFat

Searching around for even more opinions on JB4 S2 map1 versus map5 for stock 335i. Actually with BMW Performance Exhaust and running 93 octane, but no bolt ons.

Would you recommend map1 or map5 or either, and why?

Map 5 will most likely pull harder for a stock car, especially if you throw 93 with a shot of E85 in but don't go overboard without FF wires

[Jsoboti]

Originally Posted by Ml3456

Is there any way to set up or program a valet mode on some of the other maps?

Thanks, ML

Map 0 will make the car stock so the valet can't get too crazy. Map 6 is a custom map so if you detune the boost levels for map 6 that may be able to effectively turn the turbo "off" for valets

[snaimpally]

Originally Posted by RunFat

Searching around for even more opinions on JB4 S2 map1 versus map5 for stock 335i. Actually with BMW Performance Exhaust and running 93 octane, but no bolt ons.

Would you recommend map1 or map5 or either, and why?

I recently installed JB4 S2 on an otherwise stock 335i. I have tried both map 1 and map 5 and map 5 is better. I think for most people, map 5 is the way to go because, as you add performance gear, the JB4 will adapt and adjust settings accordingly. So you can continue with map5 as you add intake, FMIC, downpipe, exhaust, etc.

[mike@x-ph.com]

Originally Posted by RunFat

Searching around for even more opinions on JB4 S2 map1 versus map5 for stock 335i. Actually with BMW Performance Exhaust and running 93 octane, but no bolt ons.

Would you recommend map1 or map5 or either, and why?

I always recommend map 5 for daily driving no matter what your mods are.

[mustangivore]

Originally Posted by Jsoboti

Map 5 will most likely pull harder for a stock car, especially if you throw 93 with a shot of E85 in but don't go overboard without FF wires

Are there any significant disadvantages to running the FF wires? $25 is a drop in the bucket and the install seems relatively easy. I guess if something went awry with the FF you could possibly blow your engine? But maybe the chance of that is less than hitting the lottery?

Sounds like even with just 93 octane & BMW PE, there is no good reason not to do map5 over map1 (other than consistency from a preset tune).

Interesting idea with map6 as valet.

[mustangivore]

Originally Posted by snaimpally

I recently installed JB4 S2 on an otherwise stock 335i. I have tried both map 1 and map 5 and map 5 is better. I think for most people, map 5 is the way to go because, as you add performance gear, the JB4 will adapt and adjust settings accordingly. So you can continue with map5 as you add intake, FMIC, downpipe, exhaust, etc.

Thanks for sharing your experience. Seems to be clear winner. Is there a chance too much boost could be created in map5 on a particular day due to conditions that day, and stock downpipe or charge pipe or something else is then put at significant risk for failure?

[mustangivore]

Originally Posted by mike@x-ph.com

I always recommend map 5 for daily driving no matter what your mods are.

Thanks for the reply. Not to beat a dead horse here but when you say "no matter what your mods are", does that include NO mods

[mike@x-ph.com]

Originally Posted by RunFat

Thanks for the reply. Not to beat a dead horse here but when you say "no matter what your mods are", does that include NO mods

Yep

[snaimpally]

Originally Posted by RunFat

Thanks for sharing your experience. Seems to be clear winner. Is there a chance too much boost could be created in map5 on a particular day due to conditions that day, and stock downpipe or charge pipe or something else is then put at significant risk for failure?

Increasing boost will of course have an effect on the other components and no testing can take into consideration all possible combinations of engines, weather, etc. so it may be possible that some situation may arise that puts a component at risk of failure. But that is true even for a 100% stock car - BMW has not engineered for all possible situations, which is why the stock plastic charge pipe can come off etc. even on a stock vehicle. That is the reason for the warranty!

However, the JB4 has been around for quite some time so its not like its a brand new product or anything. Thousands have been running the JB4 successfully for many years. Its a proven product. But there are no guarantees - one of your parts may have a manufacturing defect. The defect may show up sooner when running the JB4 and later if you don't run it but it will still show up eventually.

You are overthinking this way too much!!!