N54 - Motiv Introduces the BoostBox!!

[Joe]

I guess Chris did a decent job of explaining it. I just haven't seen the thread in a long time.

"The PID control which works just like OEM and any other flash only tunes but optimized for Single turbos. Which is very different than the OEM method of controlling boost. That portion will be Motiv specific and available on all custom Motiv tunes. The PID will compensate for every external variable condition. Everything from exhaust temp, to altitude changes and changes in IAT. It makes power very consistent everytime, all the time along with every DME safety still intact."

 

[Abacus38]

Yeah when I saw this I was holy s@#$. targeting 4.7 psi with a 14psi spring in the wastegate

 

[V8bait]

If I'm not mistaken it allows them to control boost under wastegate spring, which is huge for safety. I don't know to what extent they'll be implementing it but there are a lot of upsides. @CKI@Motiv selling the PID tuning versus the boostbox is really what I was going for earlier. I saw a couple posts on it but it didn't really go into detail on the benefits and what it really means for those of us out here who aren't familiar with how PID worked before, now or on stacked implementations like Jb4.

https://bmw.spoolstreet.com/threads/single-turbo-flash-only-pid-control.694/

Unless I'm missing something, boost under spring pressure isn't possible through any PID manipulation, although you can set up the boost system to use throttle as a means of boost control under wastegate spring with pretty darn good results. MAC solenoids with conventional gates are generally nicer to tune than the vacuum only ones we have (although the vacuum ones do have a handful of advantages such as fuel economy and safety). Considering the JB4 is a headache to custom tune and the only other options are overkill (like the haltec) this is definitely a huge step for these cars. Chris has done fine work showcasing the abilities.

 

[Joe]

Unless I'm missing something, boost under spring pressure isn't possible through any PID manipulation, although you can set up the boost system to use throttle as a means of boost control under wastegate spring with pretty darn good results. MAC solenoids with conventional gates are generally nicer to tune than the vacuum only ones we have (although the vacuum ones do have a handful of advantages such as fuel economy and safety). Considering the JB4 is a headache to custom tune and the only other options are overkill (like the haltec) this is definitely a huge step for these cars. Chris has done fine work showcasing the abilities.

You're not wrong... but if you read that thread, they completely changed the PID process for single turbo applications-- which is the proprietary portion you get with a MOTIV tune. What @Abacus38 posted is real life. IIRC that pic is from a car with a 12 or 15psi wg spring, targeting and maintaining 5psi.

 

[Chris@Motiv]

Unless I'm missing something, boost under spring pressure isn't possible through any PID manipulation, although you can set up the boost system to use throttle as a means of boost control under wastegate spring with pretty darn good results. MAC solenoids with conventional gates are generally nicer to tune than the vacuum only ones we have (although the vacuum ones do have a handful of advantages such as fuel economy and safety). Considering the JB4 is a headache to custom tune and the only other options are overkill (like the haltec) this is definitely a huge step for these cars. Chris has done fine work showcasing the abilities.

Justin your right PID doesnt do anything except kill WGDC during lesser than desired boost is requested. Macs are very good control solenoid's but damn are they sensitive to hz changes. I had to revamp the whole WGDC tables when changing from our Beta boards to our newest version. I had to do hundreds of logs to get it back into place. If you've never felt untuned PID then your in for a ride lol 26psi, 15psi, 26psi, 25psi 15psi, 30 psi..... Most importantly i think people bypass the DME's power to actually tune and run a high performance motor. I think we're starting to get on Cobb's level with the ability use stock DME/ECU flashing to add any feature we'd like with no external intervention. The stuff @jyamona@motiv has done and what he has planned on top of his capability is just unreal.

I agree they should really push it harder, it's a great step forward for the platform! I wonder if they're just a little overwhelmed with tunes for those buying it though. I don't know what's going to be so special about the PID, would it not be similar to any other MAC solenoid PID? Of course a complete rewrite to the factory scheme, however. I haven't really looked into it, but it's just a matter of time really, the box itself is the major winner. Looks like motiv has it humming along nicely which is very inspiring!

Overwhelmed is an understatement. We sold out of 50 boxes in the first 2 weeks. We have sold a lot more since. Jake H and i spent almost 12hrs on the dyno last weekend between a few cars getting things dialed in. We're quite happy with the results. We have a handle on everything and it'll start rolling out much faster from here on out.

The PID is unlike anything else as you know. 144 cells times 3 tables + 12 more cells for multiplication factor. Not one is close to stock val. A very experienced AEM infinity tuner was amazed at what we had vs what the AEM infinity is capable of along with all the other 1000+whp supra's and GTR's he tunes has. I used fixed values and they work to an extent but the range is limited.

If I'm not mistaken it allows them to control boost under wastegate spring, which is huge for safety. I don't know to what extent they'll be implementing it but there are a lot of upsides. @CKI@Motiv selling the PID tuning versus the boostbox is really what I was going for earlier. I saw a couple posts on it but it didn't really go into detail on the benefits and what it really means for those of us out here who aren't familiar with how PID worked before, now or on stacked implementations like Jb4.

https://bmw.spoolstreet.com/threads/single-turbo-flash-only-pid-control.694/

PID wont allow us to run below WG pressure other than just zero WGDC.

Yeah when I saw this I was holy s@#$. targeting 4.7 psi with a 14psi spring in the wastegateView attachment 2711

Some turbo combos can experience surging but thats easily taken care of too.

 

[Abacus38]

Yes on throttle compressor surge can kill a turbo in a heart beat. This will help those guys running those big huge turbos and keep them right of the surge line

 

[Chris@Motiv]

BoostBox users make sure you use a good ground! The ground wire is designed to reach both the ground stud near the window washer filler neck or the ground block near the coolant reservoir.

 

[doublespaces]

BoostBox users make sure you use a good ground! The ground wire is designed to reach both the ground stud near the window washer filler neck or the ground block near the coolant reservoir.

Without a good ground, what are the symptoms?

 

[Chris@Motiv]

erratic boost control on a steady WGDC or no BC at all.

 

[Boosting4me]

erratic boost control on a steady WGDC or no BC at all.

Just ordered mine did I make the cutoff or they all sold out

 

[Boosting4me]

Also it charged me 422$ isnt it supposed to be cheaper with 320 with pro tune thats ahat I ordered

 

[mkster08]

Chris has been doing my tuning and been doing a Damn good job at it in my opinion.. Any problems I had were always on my end and Chris has been able to tell me exactly what was needed to fix them.

Insanely helpful for how busy these guys have to be.

 

[Twisted Tuning]

Here's a quick screenshot of the Start of a custom tune for a Single turbo N54 running the BoostBox. Turbo is a 6266.

Great product guys..

 

[08_335i]

Between the boost box and getting in touch with Xhp about better shift points in D mode for single turbo guys, I can actually say I enjoy driving my car for the first time. Im only on the boost box base map, and I dont even care that I'm on wastegate pressure, the car drives as if it came from the factory with a big single. It starts better, idles smoother, drives smoother, everything is just better. Can't wait to get some revisions from Chris.