[Jadar]

Originally Posted by GatorF30

No, Map 2 is slightly higher boost and recommended for 93 Octane+ with bolt-ons.

I believe OP is referring to an updated version of Map 2...I'm curious where it is.

You really need additional fueling for map 2. Terry over at BMS already tested it and posted that besides a mild map 1 and downpipe the gains are maxed, but nothing to be upset about the car even with those mods responds way better then an EWG N54.

With meth JB4 and a DP terry put down 458rwhp on a B58! That's awesome.

He discussed in detail how BMW really restricted fueling in this car, so at this point the pumps are the choke point. No more wiggle room like N54 or N55.

[Jadar]

Originally Posted by HitmanHearns

Drove the car for 25 miles and it does not feel as fast as map 1. It's possible that I lack the right fuel or needs more time to adjust.

I run ER DP and 91 Octane +3 gallons of e85.

This ^ fueling is key on the b58. I believe Terry just slightly revised map 2 but it doesn't put out more boost. Not sure it's even worth it at this point.

[carguy19]

Originally Posted by mtndog

For those of us stuck with 91 octane is using Torco the best method to get 93+ octane?
Or NOS with MMT?

Guys just to give you all some advice. Be careful with Torco and octane booster additives. I've been drag racing cars and playing around with cars since my early teenage years.

Torco and other octane boosters beat the living sh*t out of your plugs. I would recommend pulling a plug every 2500 miles or less to take a look. The plugs get all pitted and worn very quickly because of the additives in the octane booster. The best thing to do if you guys have it locally, is find a station with 100 octane and buy 5-10- 5 gallon fuel jugs from summit racing and mix 5 gallons of 100 with 10 gallons of 93.

Either that or buy a meth injection kit. Meth injection has been around for decades now, and it is one of the least harmful things you can do to your car, if anything meth injection will prolong an engines life, it keeps the combustion chamber and piston crowns and ring lands MUCH cooler which is one of the main reasons it creates more powerand allows more boost, timing or both . A properly running meth/water injection system with the passive safety of a product such as a JB4 with the auto tune feature as a safety net, has absolutely no risk of hurting anything in the motor. Like anything else in your car, you always want to check everything out every 500-1000 miles on your car. (tire pressure, washer fluid, leaks,) you would just add inspecing the meth tank, pump and nozzles, which takes all of 5 minutes max.

I went on a bit of a tangent here but avoid torco or any other octane booster at all costs. That's my point here. LOL

[mtndog]

Originally Posted by carguy19

Guys just to give you all some advice. Be careful with Torco and octane booster additives. I've been drag racing cars and playing around with cars since my early teenage years.

Torco and other octane boosters beat the living sh*t out of your plugs. I would recommend pulling a plug every 2500 miles or less to take a look. The plugs get all pitted and worn very quickly because of the additives in the octane booster. The best thing to do if you guys have it locally, is find a station with 100 octane and buy 5-10- 5 gallon fuel jugs from summit racing and mix 5 gallons of 100 with 10 gallons of 93.

Either that or buy a meth injection kit. Meth injection has been around for decades now, and it is one of the least harmful things you can do to your car, if anything meth injection will prolong an engines life, it keeps the combustion chamber and piston crowns and ring lands MUCH cooler which is one of the main reasons it creates more powerand allows more boost, timing or both . A properly running meth/water injection system with the passive safety of a product such as a JB4 with the auto tune feature as a safety net, has absolutely no risk of hurting anything in the motor. Like anything else in your car, you always want to check everything out every 500-1000 miles on your car. (tire pressure, washer fluid, leaks,) you would just add inspecing the meth tank, pump and nozzles, which takes all of 5 minutes max.

I went on a bit of a tangent here but avoid torco or any other octane booster at all costs. That's my point here. LOL

Good to know...thanks for the info.

[tmdals0213]

Originally Posted by carguy19

I went on a bit of a tangent here but avoid torco or any other octane booster at all costs. That's my point here. LOL

thanks carguy!!!

[kriszty]

How much hp gain would be possible with the JB4 ( map1 or map 2 )
cause 40hp more sounds not that much in my opinion....

[jpsimon]

Originally Posted by Dejan_

He discussed in detail how BMW really restricted fueling in this car, so at this point the pumps are the choke point. No more wiggle room like N54 or N55.

Can you share a link to where he goes in to detail about the pumps being the choke point? I was under the impression it was a software based cap that can be fixed with a flash (once that's available on this platform). Terry specifically responded to my question about this by saying:

Yes, I am hoping that will be the case. That we can flash them some day and remove that cap.

[Jadar]

Originally Posted by jpsimon

Can you share a link to where he goes in to detail about the pumps being the choke point? I was under the impression it was a software based cap that can be fixed with a flash (once that's available on this platform). Terry specifically responded to my question about this by saying:

HPFP. Ill try to find the link. He basically discussed that he's impressed with the B58 and it makes monster power. But JB4 couldn't take it last map 1 due to fueling limitations and he added meth and put down I believe but down quote the exact # but 458rwhp with just those 2 mods.

If it's indeed what he discovered and flash can bypass I enthusiastically stand corrected as I would love to get this dme cracked as well and it would be so convenient and easy to flash fix fueling choke point.

Mind you this was earlier on in his b58 tuning process on his car. If he indeed did discover that it's flash related and the choke point can be lifted this is still a case of don't hold your breath, it'll be a while before the new dme is cracked. So basically fuel = choke point pick your poison, install new LPFP AND HPFP or hope flash can fix it. Note he said he HOPES that's the case. So still uncharted waters.

And now there's a revised map 2 but runs less boost.

[shawntech]

Originally Posted by Dejan_

HPFP. Ill try to find the link. He basically discussed that he's impressed with the B58 and it makes monster power. But JB4 couldn't take it last map 1 due to fueling limitations and he added meth and put down I believe but down quote the exact # but 458rwhp with just those 2 mods.

If it's indeed what he discovered and flash can bypass I enthusiastically stand corrected as I would love to get this dme cracked as well and it would be so convenient and easy to flash fix fueling choke point.

Mind you this was earlier on in his b58 tuning process on his car. If he indeed did discover that it's flash related and the choke point can be lifted this is still a case of don't hold your breath, it'll be a while before the new dme is cracked. So basically fuel = choke point pick your poison, install new LPFP AND HPFP or hope flash can fix it. Note he said he HOPES that's the case. So still uncharted waters.

And now there's a revised map 2 but runs less boost.

the fuelling limitation is software based.

[jpsimon]

We need Mr. Robot to crack this DME for us

[Jadar]

Originally Posted by jpsimon

We need Mr. Robot to crack this DME for us

Yes sir exactly get that party started.

[Jadar]

Originally Posted by ls3c6

the fuelling limitation is software based.

Well that's even better...so who's got the cracked DME on the B58?

The thing is when and it's only a matter of time of cracking it what wall will you hit with the LPFP and HPFP...when trying to make 17-18psi on the OEM turbo...

We have see it on the N55 early and that wasn't software limited so we'll have to wait and see. How long is the question..

[mtx450]

IMO, the software IPW cap is insurance for BMW. It buys them time so people don't start blowing up their B58's left and right. Once the DME is cracked, then all bets are off. They obviously know about the JB4, and then engine is clearly strong and can handle more boost. It's probably safe all day to run with the JB4, but only at the limit of the IPW. I feel like things might start getting sketchy once it's cracked and the boost gets turned up even more.

[jeebus]

My 340 with JB4 on map1 feels properly quick. It pulls quite a bit harder than my e90 m3 now.

[shawntech]

Has anyone on this new revision noticed when you set default boost safety to 20 it reverts to 28.4 and no matter what I do, when I save tmap as 0 like it should be it always reverts to 1 or n20/3.5bar... b58 tmap is 2.5bar

Surely this isn't right. Win10 laptop, 5/18/2016 jb4 interface usb connection.

[Mike@N54Tuning.com]

Originally Posted by ls3c6

Has anyone on this new revision noticed when you set default boost safety to 20 it reverts to 28.4 and no matter what I do, when I save tmap as 0 like it should be it always reverts to 1 or n20/3.5bar... b58 tmap is 2.5bar

Surely this isn't right. Win10 laptop, 5/18/2016 jb4 interface usb connection.

I would email Terry @ BMS with that issue..

Mike

[shawntech]

Originally Posted by Mike@N54Tuning.com

I would email Terry @ BMS with that issue..

Mike

I did, just getting the info out there i've reviewed a couple other user's logs that show n20_tmap @ 1 as well, no wonder so many people are complaining lately eh?

[mtx450]

Originally Posted by ls3c6

I did, just getting the info out there i've reviewed a couple other user's logs that show n20_tmap @ 1 as well, no wonder so many people are complaining lately eh?

Please keep us updated with what Terry says. I haven't updated yet and will hold off until this issue is resolved.

[shawntech]

can someone email me version 3 hex?

[shawntech]

Terry clarified and default settings for rev 4 are now completely different than they were previously as noticed by new settings picture in post 1, head over there and verify your default configs.

[mtx450]

Originally Posted by ls3c6

Terry clarified and default settings for rev 4 are now completely different than they were previously as noticed by new settings picture in post 1, head over there and verify your default configs.

Yep, just read that on N54TECH, thanks for the heads up.

[E90ROXS]

What else can we do with this car?
I already have bms intake, er dp, jb4.