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This was from today @ Euro'd out event at Englishtown.
My runs are the ones to the right, car 4251. The car to the left, car 217 is a stock C43, not sure if he's a member here and I believe that was his best run of the day, unless he ran better times after I left.
I'm not going to bench-race, but I think the car has a "little more" in it. From analyzing the slips, this piggyback has great low-end, but could use a "little more" up top.
However, for $379 how much more can you ask for. On the bright side, BMS might do more development if "sales pick up" See the below quote from the n54.
Terry @ BMSYes at some point I see future development. Especially if sales on the Stage1 system start going up...
Bora, can you tell everyone a little about your experience with the jb1? It has been hard to find out info about it installed in our cars. I'm just going to ramble off questions:
When did you install it and did you DIY?
Were power gains noticed immediately with the butt Dyno?
Most importantly, does it still crackle?!?
Bora, can you tell everyone a little about your experience with the jb1? It has been hard to find out info about it installed in our cars. I'm just going to ramble off questions:
When did you install it and did you DIY?
Were power gains noticed immediately with the butt Dyno?
Most importantly, does it still crackle?!?
I just ordered the BMS JB1 for my C450 and I will report back once installed.
Maybe if Berger did a half cup of promotion they would get their sales up. I haven't seen one post from them here or a dyno for a c450/c4 from them.
Why should they, JB1 is $379 and based on my calculations (average E.T.'s and trap speeds), it's making 45-65hp over stock. That's similar to some of the ECU tunes that cost over $1k. Additionally, if you sell your car, you can take it out and recover at least 50% of your money back. I didn't pay $379 for mine, I picked it up used. Their BMW/VW units have a lot more development, options and sales. Example: http://forums.vwvortex.com/showthrea...rmation-Thread
Originally Posted by cenzo86
Bora, can you tell everyone a little about your experience with the jb1? It has been hard to find out info about it installed in our cars. I'm just going to ramble off questions:
When did you install it and did you DIY?
Were power gains noticed immediately with the butt Dyno?
Most importantly, does it still crackle?!?
Yes, I could feel the increase in power immediately! I picked up the unit used from a local forum member, drove home, opened the hood and waited 15 minutes for the ECU to sleep (per BMS instructions). At this point it was dark out, I was too lazy to swap cars in the garage and I was too anxious to install it. In the driveway with a long screw driver, and few zip ties and my son holding the flashlight, 15 minutes later I was done and went out for a ride. My first impression was, wow, this thing is making at least 40 more HP, the entire power band improved.
Installation: http://www.n54tech.com/flash_files/c300_c400_stage1.pdf go down to page5
The crackles are still there.
And to my understanding from the N54 forum and some of your posts, you were able to do some mild tuning of the piggyback...correct?
After emailing them back and forth, I found out that unlike the N54 BMW's (example below), we don't have any of the options BMW's have. Other than boost, everything else is disabled. Yes you can change values and "save", but it doesn't do anything. Boost is already maxed in map2. Adding more boost, does nothing but blow hot air and actually hurt your numbers/hp
Hopefully sales "start going up" and BMS develops/unlocks all the cool stuff BMW's have.
Ahh, got it. There was an exchange that sort of stopped short on details, but I got the impression you were able to perform some tweaks. Oh well...hope for the future. I wish there was an option that was easy like a COBB or Hondata tune
18bora - The problem is Mercedes just correctly turbo'ed the c-class. BMW had a 18 year head start with the N54 introduced towards end of 2006 as 2007 model 335i. I don't think anybody took Mercedes C-Class serious until after the c400/c450 came out. I was one of Terry's (BMS) original testers for their first attempt to our world with the JB Beta for the 2012 c250 turbo. He was a verified vendor and advertised the JB Beta on MBWorld in the w204 forums. Even with all my feedback and posts in the w204 forums years ago, along with others, nobody really purchased the JB Beta though it really did improve the c250. To be honest, the Mercedes tuning world out side of our big brother AMGs is weak. A couple of us asked Terry to update the JB products for us and he consistently stated, that the MB crowd doesn't have enough interest.
Maybe we can keep promoting the JB1 and he will eventually make improvements for us. I know for the JB3 and JB4 they have for the 3 series, it can be tweaked for downpipes, meth, exhaust and other power adders.
Ahh, got it. There was an exchange that sort of stopped short on details, but I got the impression you were able to perform some tweaks. Oh well...hope for the future. I wish there was an option that was easy like a COBB or Hondata tune
The exchange was over email after that, Terry was very helpful, but there wasn't much he could do since the JB1 is limited to what it can do.
Originally Posted by DameMD
Maybe we can keep promoting the JB1 and he will eventually make improvements for us. I know for the JB3 and JB4 they have for the 3 series, it can be tweaked for downpipes, meth, exhaust and other power adders.
Maybe, but I highly doubt it. If BMS prices it up to $1,000k-$1,200, the MB crowd might become more interested in it. Regardless, based on my calculations (averaging E.T.'s and trap speeds) I'm making around 65hp over stock, with the stock downpipe and intake!!!! With a downpipe and intake, it might trap 115mph??!!
18bora - The problem is Mercedes just correctly turbo'ed the c-class. BMW had a 18 year head start with the N54 introduced towards end of 2006 as 2007 model 335i. I don't think anybody took Mercedes C-Class serious until after the c400/c450 came out. I was one of Terry's (BMS) original testers for their first attempt to our world with the JB Beta for the 2012 c250 turbo. He was a verified vendor and advertised the JB Beta on MBWorld in the w204 forums. Even with all my feedback and posts in the w204 forums years ago, along with others, nobody really purchased the JB Beta though it really did improve the c250. To be honest, the Mercedes tuning world out side of our big brother AMGs is weak. A couple of us asked Terry to update the JB products for us and he consistently stated, that the MB crowd doesn't have enough interest.
Maybe we can keep promoting the JB1 and he will eventually make improvements for us. I know for the JB3 and JB4 they have for the 3 series, it can be tweaked for downpipes, meth, exhaust and other power adders.
This is good feedback, and nothing surprising. High barrier to entry for the brand, plus an image geared towards the 40+ businessman crowd, exception of course being AMG...which then goes back to even more expensive barrier to entry! Vicious circle!
Do you still maintain that adding more boost than map 2 does not do anything for you?
Yes, unless you have some octane booster and/or cooler weather. If you add too much boost, the ECU's base boost will drop lowering your actual boost. You can add all the boost you want, but the ecu is not stupid, it knows you're pushing the limits from the other sensors, o2, knock, fuel pressure, etc..
Example:
Map1 requests +3 psi over stock at 5000 rpm. Stock boost at the same rpm is 10psi. If all the sensors and ECU are happy, you will get 13psi (10+3).
You switch to map2 which requests +5psi at 5000 rpm. Stock boost is 10psi and every sensor is happy, you will get 15psi (10+5).
If you have crappy gas in the car and it's hot and humid still on map2 requesting +5 over stock causing knock, the ECU then will drop base request from 10psi to 5psi (just an example), your actual boost will be 10psi total (5 ecu +5 map2). Same applies to map6. More psi is not necessarily better or more power, it all depends on the conditions... Same applies to full ECU tunes.
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