Bms stage 1 or JB4?

Pimpsy · 04-09-2019, 11:59 AM

Quote:

Originally Posted by limeypride

Quote:

Originally Posted by Pimpsy

Quote:

Originally Posted by limeypride

Excuse my obvious ignorance. While I design/engineer OS and platform security software for a living and the overlaps with today's cars are surprisingly large, when it strays into the mechanical, I'm a kindergartener.

.

Too bad BMW doesn't use active directory. Otherwise I'm sure you would have fun sharing a few tidbits.

Seem to remember you being on the team…

;-)

The idea of domain-joining a car and having it use using Group Policy sends shivers down my spine.

PS: Do we know each other?

We crossed paths a few years ago. Crossover IT/M enthusiasts are a pretty small circle.

:-)

Fuel-It! · 04-09-2019, 02:36 PM

Quote:

Originally Posted by limeypride

Woot woot!

Seriously, though--these things get quite the bashing but, dayam, they (or at least the JB4 that I've years of experience with) work like a charm!

It's because people misunderstand how modern systems like the JB4 work and presume it's like some 1980s piggyback they have experience with. The DME is always running the tuning of the vehicle even with a JB4 installed. The piggyback just alters the DME's behavior so it's targeting a slightly higher boost target along it's factory mapped out tables. The JB4 isn't actually doing the tuning the DME continues to do all tuning!

limeypride · 04-09-2019, 02:38 PM

Quote:

Originally Posted by Fuel-It!

It's because people misunderstand how modern systems like the JB4 work and presume it's like some 1980s piggyback they have experience with. The DME is always running the tuning of the vehicle even with a JB4 installed. The piggyback just alters the DME's behavior so it's targeting a slightly higher boost target along it's factory mapped out tables. The JB4 isn't actually doing the tuning the DME continues to do all tuning!

Nod, you're very possibly correct. I've been explaining it for years and yet they're still treated by so many as only slightly more credible than gas station octane booster.