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After analyzing other tuned members time slips, a few of my logs and time slips from here https://mbworld.org/forums/c450-c43-...piggyback.html I decided to do a little more ironing to the boost curves in map6. This was after I noticed a slight shift hesitation from 2nd to 3rd gears and/or 3rd to 4th. It felt as if the trans hit a torque limiter, which caused lower 1/8 mile trap speeds (89mph vs. 90+mph). Below are all of my runs for the night.
That's amazing times. You have proved that the jb1 is just as good or even better than the full ecu flashes offered from OE, EC and AMR. Kudos to you bro. I really need to take my coupe to the track now for some results with this EC stage 1 v2 tune.
Question when I buy my JB1 can I use your map on my car?
Is this just a race map or are you running map 6 all the time?
Map6 is a customized boost map you're in control of it and enter your requested boost values. The values you enter are your requested boost above stock. If you enter 3, it means you're requesting 3psi above stock at that rpm curve. If stock is10psi, you're basically asking for 13psi (10+3). However, BMS has a built in safety (I'm not sure what's the limit), if you enter 20, it doesn't mean you will get 20psi above stock. Additionally, if you request too much boost and the car knocks, the ECU will automatically lower the stock boost from 10 to maybe 6 or 7, I'm also assuming that the ECU will also back timing too, which results in less power.......
Originally Posted by desi4life10
What octane gas were you running for this pull?
93+ a can of octane booster that adds 3 octane point, so, it's around ~96 octane.
Originally Posted by ShazV6
That's amazing times. You have proved that the jb1 is just as good or even better than the full ecu flashes offered from OE, EC and AMR. Kudos to you bro. I really need to take my coupe to the track now for some results with this EC stage 1 v2 tune.
Better hurry, the tracks close in a few weeks.
On a side note, from averaging my trap speeds, the car is making around 475hp vs. the stock 367hp (crank hp). That's ~ 100hp over stock. http://wallaceracing.com/et-hp-mph.php my stock trap speed (105-107) showed ~ 360-370hp with this calculator.
If sales start going up, BMS might future develop the JB1, per Terry "Yes at some point I see future development. Especially if sales on the Stage1 system start going up" I suggest BMS increase the price from $379 to $1,099 to make this unit more desirable for the MB crowd
After analyzing other tuned members time slips, a few of my logs and time slips from here https://mbworld.org/forums/c450-c43-...piggyback.html I decided to do a little more ironing to the boost curves in map6. This was after I noticed a slight shift hesitation from 2nd to 3rd gears and/or 3rd to 4th. It felt as if the trans hit a torque limiter, which caused lower 1/8 mile trap speeds (89mph vs. 90+mph). Below are all of my runs for the night.
Good driving! I would start to be careful with these adjustments you are making. You only have control over fuel and boost. Though making power by leaning out and increasing boost pressures show some good times, from a safety standpoint, keep a look out.
Map6 is a customized boost map you're in control of it and enter your requested boost values. The values you enter are your requested boost above stock. If you enter 3, it means you're requesting 3psi above stock at that rpm curve. If stock is10psi, you're basically asking for 13psi (10+3). However, BMS has a built in safety (I'm not sure what's the limit), if you enter 20, it doesn't mean you will get 20psi above stock. Additionally, if you request too much boost and the car knocks, the ECU will automatically lower the stock boost from 10 to maybe 6 or 7, I'm also assuming that the ECU will also back timing too, which results in less power.......
93+ a can of octane booster that adds 3 octane point, so, it's around ~96 octane.
Better hurry, the tracks close in a few weeks.
On a side note, from averaging my trap speeds, the car is making around 475hp vs. the stock 367hp (crank hp). That's ~ 100hp over stock. http://wallaceracing.com/et-hp-mph.php my stock trap speed (105-107) showed ~ 360-370hp with this calculator.
If sales start going up, BMS might future develop the JB1, per Terry "Yes at some point I see future development. Especially if sales on the Stage1 system start going up" I suggest BMS increase the price from $379 to $1,099 to make this unit more desirable for the MB crowd
Bora, what is our actual stock max boost and what is the actual modified increased boost you are getting with the JB1? I cant seem to find any concensus on stock boost vs increased boost with various tunes.
Good driving! I would start to be careful with these adjustments you are making. You only have control over fuel and boost. Though making power by leaning out and increasing boost pressures show some good times, from a safety standpoint, keep a look out.
Thanks, I believe ramping up the boost too quick caused the trans to freakout a little, but I already smoothed that curve..... and my AFR's are fine \/.
Originally Posted by W205C43AMGCoupe
Bora, what is our actual stock max boost and what is the actual modified increased boost you are getting with the JB1? I cant seem to find any concensus on stock boost vs increased boost with various tunes.
Additionally, the JB1 has a map0, basically stock boost. If you log in this map, it will show you the exact stock boost settings. If this is too much work, you can just leave it in map1 or 2 and call it the day.
You ever toy with the idea of throwing in some 104 octane and requesting like 18-20[net]psi to see what happens?
I'm a bit worried about the longevity of these transmissions when pushing 500+hp daily, but I'm thinking that within 2-3 years normal stock turbo tunes are going to be running somewhere in that area of boost. Should honestly be able to handle (the motor/turbos should at least) ~24psi on pump with meth...
Originally Posted by 18bora
I suggest BMS increase the price from $379 to $1,099 to make this unit more desirable for the MB crowd
Hahaha I think this is more true than we'd like to admit...
Originally Posted by Dieseldan9
I am going to wait till I hit 1000 miles and try this thing out
You have a MB motor, not an AMG handbuilt one. It's good to go right out of the box.
Originally Posted by Blacked out E63
Good driving! I would start to be careful with these adjustments you are making. You only have control over fuel and boost. Though making power by leaning out and increasing boost pressures show some good times, from a safety standpoint, keep a look out.
I forget the name of the sensor (at least what MB calls it), but doesn't the ECU/that specific sensor always adjust on the fly to maintain a safe AFR? I mean, I know that Piggybacks only adjust a fraction of the parameters that a "full" tune does, but the ECU will always adjust everything else accordingly as far as I know. At least when it comes to running safe timing and AFR. No?
You ever toy with the idea of throwing in some 104 octane and requesting like 18-20[net]psi to see what happens?
I'm a bit worried about the longevity of these transmissions when pushing 500+hp daily, but I'm thinking that within 2-3 years normal stock turbo tunes are going to be running somewhere in that area of boost. Should honestly be able to handle (the motor/turbos should at least) ~24psi on pump with meth...
I think I'm done for the year, most tracks around me should be closing soon. As for the trans, it worked fine after I smoothed the boost curves, After market programing might help the trans longevity
Originally Posted by amalgam
Very nice! Looking forward to seeing that 11.9 slip!!!
I'm still on the stock hardware, but with a downpipe/exhaust, maybe.
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I suggest BMS increase the price from $379 to $1,099 to make this unit more desirable for the MB crowd 
