Drivetrain (Cooper S) MINI Cooper S (R56) intakes, exhausts, pulleys, headers, throttle bodies, and any other modifications to the Cooper S drivetrain.

Drivetrain Burger Motorsports (BMS) Tune(s)

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  #1951  
Old 04-01-2014, 11:12 AM
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Originally Posted by minniehaha
Straight-up honest here: No clue how I'd adjust the fuel trims, how to monitor them, how close they are to, or approaching 33, how one would "have room" for adjustment, etc.

Prolly know enough to get me in trouble though...

Maybe I should just take the plunge and get a meth kit (and leave it the hell alone, i.e., at the defaults), given what's being posted here, it seems like a good, 'safe' and effective route
fuel trims adjust themselves via the ECU. the are not infinitelly adjustable and when you add more than 33% e85, they essentially run out of room to adjust and you wnd up running too lean (not a good thing).

if you want to play with more boost, a meth kit might not be too bad of an idea.
 
  #1952  
Old 04-01-2014, 11:47 AM
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Originally Posted by minniehaha
Straight-up honest here: No clue how I'd adjust the fuel trims, how to monitor them, how close they are to, or approaching 33, how one would "have room" for adjustment, etc.

Prolly know enough to get me in trouble though...

Maybe I should just take the plunge and get a meth kit (and leave it the hell alone, i.e., at the defaults), given what's being posted here, it seems like a good, 'safe' and effective route
There is no way for an end user to adjust fuel trims, it's part of the mapping. You can monitor them using DashCommand, Scangauge, etc.
 
  #1953  
Old 04-01-2014, 11:58 AM
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Originally Posted by Mcameron
fuel trims adjust themselves via the ECU. the are not infinitelly adjustable and when you add more than 33% e85, they essentially run out of room to adjust and you wnd up running too lean (not a good thing). if you want to play with more boost, a meth kit might not be too bad of an idea.
Just so we are all on the same page, how many gallons of E85 do you consider 33%?

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  #1954  
Old 04-01-2014, 12:35 PM
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Originally Posted by MarioKart
Just so we are all on the same page, how many gallons of E85 do you consider 33%?

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i dont personally run E85, so dont quote me as gospel, but according to my maths 30% of 12.5 gallons = 3.75.....so i wouldnt run more than 3 gallons of E85 per fillup, ide imagine that would give you enough buffer room to account for whatever ethanol is alread in 91/93 the fuel.

but like i said, i dont personally run it, so ide advise to do your own research.
 
  #1955  
Old 04-01-2014, 01:20 PM
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Originally Posted by MarioKart
Just so we are all on the same page, how many gallons of E85 do you consider 33%?

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Here, for anyone interested. You'll need to do the math on fillups (i.e., ratio what volume is available and then recalc. the % based on that). But for a basis I ran several %'s through the (awesome) spreadsheet Tigger provided.

Caveat emptor, so to speak.

Enjoy

Or also, to answer the 33% question:
.33*12.4 = 4.10
Thus 4.10 gallons of e85 is a "33%." It's also an 'actual' e28, per the spreadsheet.
 
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Last edited by minniehaha; 04-01-2014 at 01:24 PM. Reason: clarity
  #1956  
Old 04-01-2014, 01:52 PM
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Originally Posted by Mcameron
fuel trims adjust themselves via the ECU. the are not infinitelly adjustable and when you add more than 33% e85, they essentially run out of room to adjust and you wnd up running too lean (not a good thing).

if you want to play with more boost, a meth kit might not be too bad of an idea.
It's not just a mad quest for boost, it's for 'safe' power, so to speak.

Also, where did the "FuelTrim limit being reached" information with e85 at 33% come from? I will have to look back in this thread and will send BMS an e-mail if I consider going above the "Rolling Rock" limit (33), but IIRC, Terry mentioned in a reply about going to 40% or thereabout.
Anyway, not making that leap yet, just gathering knowledge (it's fun).
 
  #1957  
Old 04-01-2014, 02:53 PM
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Originally Posted by minniehaha
It's not just a mad quest for boost, it's for 'safe' power, so to speak. Also, where did the "FuelTrim limit being reached" information with e85 at 33% come from? I will have to look back in this thread and will send BMS an e-mail if I consider going above the "Rolling Rock" limit (33), but IIRC, Terry mentioned in a reply about going to 40% or thereabout. Anyway, not making that leap yet, just gathering knowledge (it's fun).
Terry has meantioned the 33% limit in this thread and others. It's also a common trim limit. I also remember Terry replying to someone about going to 40%. If you do then you'll want to monitor AFR.
 
  #1958  
Old 04-01-2014, 04:35 PM
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Also, where did the "FuelTrim limit being reached" information with e85 at 33% come from? I will have to look back in this thread and will send BMS an e-mail if I consider going above the "Rolling Rock" limit (33), but IIRC, Terry mentioned in a reply about going to 40% or thereabout.
Anyway, not making that leap yet, just gathering knowledge (it's fun).
running more ethanol leans out your fuel mixture, so the ECU needs to push more fuel to compensate, but there is a limit to how much fuel it can add, thats where the "fuel trim limit" comes from.

the other potentially detrimental effect of running to much ethanol is its effect on the fuel system, ethanol can degrade fuel lines and and orings, however it has been generally determined that there is no noticeable effect with a 30% concentration of E85.
 

Last edited by Mcameron; 04-01-2014 at 04:47 PM.
  #1959  
Old 04-01-2014, 05:04 PM
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Originally Posted by cerenkov
Terry has meantioned the 33% limit in this thread and others. It's also a common trim limit. I also remember Terry replying to someone about going to 40%. If you do then you'll want to monitor AFR.
I think the confusion is this. The fuel system can add/trim up to 33% more fuel to make up for leaner burning ethanol. Someone had reported their fuel trim was well below that (running 30% mixture of E85) so Terry said it's possible in that case to try a 40% mixture.

The trim you can't affect, just monitor. The E85 mixture you can vary by putting more/less in your gas tank.

Putting more E85 in your tank forces the DME to spray more fuel to keep A/F ratios in check
 
  #1960  
Old 04-01-2014, 06:14 PM
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Originally Posted by minniehaha
FWIW:...dragged my buddy in his modded (heavily) '05 MCS. Boy the ALL4 is *hard* to launch. Anyway, he got all the hole shots (with plenty of wheelspin :-) and slowly pulled away on runs to about 100+ mph. :-( for me, lol. ... now that we have a baseline for the JB+ @40% on 91, I am eager to see how it improves(?) with it @60% on e85.
So as fortune would have it a re-match occurred this evening

We went back out to our *top-secret* drag strip and had our re-match.
This time I have the Countryman at ~61% on the JuiceBox+ and a fuel blend of ~33% e85 and (pure) 91 (see above). Temp was 12.0C, IIRC it was about 15.0C on Sunday.
Anyway - Sunday he slowly pulled me as we dragged. Today was different.
This is IMO real world proof/evidence of the JB's worth... [BTW - I launched *way* better today too, but that's beside the point]. So in our runs today we were dead even, it was sweeeeet!! & FUN!! He didn't pull away as before, it was almost comical how even it was... every time he shifted I would gain a couple feet and pull ahead - and then it was time for me to shift, and he would get the couple feet back and creep inches ahead - then it was his turn to shift and it went back the other way, back and forth up to about 120. Our grins were enormous!! LOL!
I was/am stoked, the JuiceBox brought it home! My big porker Countryman held its own with the modded supercharged Cooper! And I have room to spare, the dial is only the slightest smidge past 60%
 

Last edited by minniehaha; 04-01-2014 at 06:15 PM. Reason: little grammar errors
  #1961  
Old 04-02-2014, 08:03 AM
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Originally Posted by minniehaha
So as fortune would have it a re-match occurred this evening We went back out to our *top-secret* drag strip and had our re-match. This time I have the Countryman at ~61% on the JuiceBox+ and a fuel blend of ~33% e85 and (pure) 91 (see above). Temp was 12.0C, IIRC it was about 15.0C on Sunday. Anyway - Sunday he slowly pulled me as we dragged. Today was different. This is IMO real world proof/evidence of the JB's worth... [BTW - I launched *way* better today too, but that's beside the point]. So in our runs today we were dead even, it was sweeeeet!! & FUN!! He didn't pull away as before, it was almost comical how even it was... every time he shifted I would gain a couple feet and pull ahead - and then it was time for me to shift, and he would get the couple feet back and creep inches ahead - then it was his turn to shift and it went back the other way, back and forth up to about 120. Our grins were enormous!! LOL! I was/am stoked, the JuiceBox brought it home! My big porker Countryman held its own with the modded supercharged Cooper! And I have room to spare, the dial is only the slightest smidge past 60%
That's pretty good, I can't wait for warmer weather. I'm sure you'll be more stoked when that happens;-).
 
  #1962  
Old 04-02-2014, 08:58 AM
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Originally Posted by RobMuntean
That's pretty good, I can't wait for warmer weather. I'm sure you'll be more stoked when that happens;-).
And as I install more mods, lol... intercooler, delete intake muffler, etc.

Happy Motoring!!

(indeed)
 
  #1963  
Old 04-02-2014, 11:50 AM
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Originally Posted by minniehaha
And as I install more mods, lol... intercooler, delete intake muffler, etc. Happy Motoring!! (indeed)
I'm there, got the intercooler, hot side tube, 2nd cat delete with resonator on a JCW exhaust, torque arm insert, K&N drop in panel, and a few other things I'm missing. But I'm waiting on the GFB DV to become available. Enjoy the mods it's never ending!
 
  #1964  
Old 04-02-2014, 03:24 PM
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Logged some more data on the drive home. I was first in line at a stop light so the beginning ambient was high because I was standing still. Ended up being 20F below ambient when I had to cut the run short. The hotter it gets the better meth works. Probably would have gone lower on a full run.

 
  #1965  
Old 04-02-2014, 05:17 PM
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Nice to see some real world data on meth. I've been kicking the idea around with summer in South Florida just around the corner. Not sure if i want to have my tune designed with it in mind or not yet. If you get a chance to post some data during a good pull that would be awesome (hint hint lol)
 
  #1966  
Old 04-02-2014, 06:16 PM
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Good pull, meth.
 
  #1967  
Old 04-03-2014, 07:49 PM
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A great thread for a great product

What a great thread! I have been trying to complete reading it for some time now
I have got 2 questions, though.
I have a 2013 Hardtop Factory JCW (N18 @ 211hp) w/Automatic tranny.
I live in a hot country; Egypt. The temperature could easily rise to 38 degrees on a hot summer day. What effect would that have on my JB+ tuned engine?
I use 92 fuel and sometimes "when I have spare cash " 95 octane.
I think the JB+ would be perfect so I could set the dial corresponding to the fuel I have in the tank No?
My other question is what the CAN tool actually is? Is it just a CAN OBDII cable to connect to a laptop? Or does it display bits of information on my stock dash?
and if it's necessary, where to order it from?

a 3rd question I have: What would the best cone air intake kit to go with the JB+ I am looking for good acoustics too

A great thread for a great product again
 

Last edited by FOXTEiN; 04-03-2014 at 08:03 PM.
  #1968  
Old 04-03-2014, 08:01 PM
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Originally Posted by FOXTEiN
What a great thread! I have been trying to complete reading it for some time now
I have got 2 questions, though.
I have a 2013 Hardtop Factory JCW (N18 @ 211hp) w/Automatic tranny.
I live in a hot country; Egypt. The temperature could easily rise to 38 degrees on a hot summer day. What effect would that have on my JB+ tuned engine?
I use 92 fuel and sometimes "when I have spare cash " 95 octane.
I think the JB+ would be perfect so I could set the dial corresponding to the fuel I have in the tank No?
My other question is what the CAN tool actually is? Is it just a CAN OBDII cable to connect to a laptop? Or does it display bits of information on my stock dash?
and if it's necessary, where to order it from?

A great thread for a great product again
The octane rating is for the AKI scale, I'm not sure what scale Egypt uses (RON, MON or AKI) but they can be drastically different.

I would not mess the the dial on a frequent basis, pick a setting and stay there. It's too easy to accidentally forget and fill up with the wrong gas.

If your worried about temps then look into a larger intercooler (Helix, Forge, etc.) or methanol injection. The temperature could factor into what setting you have it at.

The CAN Tool has been discontinued.
 
  #1969  
Old 04-03-2014, 08:21 PM
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Thanks very much cerenkov.
What we have is RON.
I cannot go for such a big mod now as I am still under warranty, What I would do is just use it at the default setting it arrives on.
Do u recommend getting a scanguage2 to keep an eye on things?
Also what intake box would be good for an amateur like myself? just for acoustics
 
  #1970  
Old 04-03-2014, 08:30 PM
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Maybe I'm wrong with the scales but I'd be very hesitant to run it on 92 RON and even 95 RON is not that great (borderline 91 AKI).

Maybe Terry can comment on this octane question.

For periodic monitoring I personally like smart phone type solutions like DashCommand (iPhone) or Torque (Android). Scangauge product are nice though, especially if you want a more permanent type installation. The new gauge from P3cars is cool but pricey.
 
  #1971  
Old 04-03-2014, 08:59 PM
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Originally Posted by FOXTEiN
I have a 2013 Hardtop Factory JCW (N18 @ 211hp) w/Automatic tranny.
I live in a hot country; Egypt. The temperature could easily rise to 38 degrees on a hot summer day. What effect would that have on my JB+ tuned engine?
I use 92 fuel and sometimes "when I have spare cash " 95 octane.
I think the JB+ would be perfect so I could set the dial corresponding to the fuel I have in the tank No?
I'm assuming the car was purchased in Egypt? What grade fuel does your car call for in the local market? If 95 RON is recommended, for example, then that is what you should use, not just when you have 'spare cash'. If you are using fuel lower than what is recommended, you shouldn't use the JB+ to increase the octane requirement even higher especially in a hot environment. The car would, at best, be pulling so much timing you would not be getting benefits.

Assuming 95 RON translates to 91 octane US, that is the bare minimum to run an 'S' motor at 40-50% on the JB+ dial, all else being equal. Since you have the JCW you would want it to be lower than 40% to start to be safe until you can get some logging going to test if you can go higher.

Edit: Regarding the intake, you might lose low end torque which you won't like in exchange for more noise. I'd look for a washable, dry (versus oiled) high flow panel air filter replacement.
 
  #1972  
Old 04-03-2014, 09:27 PM
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Hi Yesti,
Thanks a lot for contributing, mate. The JCW was definitely bought in Egypt, and it's a hot climate spec. (MENA region). My manufacturer recommendations state an absolute minimum RON91. I am running premium unleaded RON92. I used RON95 a few tanks and the difference is really noticeable. Average 0-100 on RON92 were 6.8 sec. I never dyno'ed it though. Planning to do so if am ever to get the JB+ (before & after).
I hope this tells u anything about if im allowed to get a JB+
Thanks a lot
 
  #1973  
Old 04-03-2014, 11:36 PM
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Originally Posted by FOXTEiN
Hi Yesti,
Thanks a lot for contributing, mate. The JCW was definitely bought in Egypt, and it's a hot climate spec. (MENA region). My manufacturer recommendations state an absolute minimum RON91. I am running premium unleaded RON92. I used RON95 a few tanks and the difference is really noticeable. Average 0-100 on RON92 were 6.8 sec. I never dyno'ed it though. Planning to do so if am ever to get the JB+ (before & after).
I hope this tells u anything about if im allowed to get a JB+
Thanks a lot
No problem. I'm unfamiliar with a 'hot climate spec' (i'd guess it would be a stronger cooling fan/system/DME logic) but there are parts of the US that get that hot so hopefully that isn't a major difference. Here the absolute minimum is 89 (RON93) octane with 91+ (RON95) recommended. The best gas here is 92 so that's what I use and the JB+ runs well at the 50% setting (my car is an S). Since you notice a big difference running RON95 you are forcing the car to compensate for the lower octane you usually run. The car does have a 'long term' (which means minutes from what I've read) octane trim for timing so it learns not to detonate it's brains out at the expense of performance. Seems the RON scale is 4-5 numbers higher than the US octane scale so RON91 is similar to our 87 (lowest grade).

Now don't get me wrong, I'm a JB+ supporter and I want BMS to continue developing Mini products, but unless you do something to raise your octane (meth injection, torco) you probably won't see the gains you want. Hopefully I'm wrong but that's what the data collected so far indicates.
 

Last edited by yesti; 04-03-2014 at 11:46 PM.
  #1974  
Old 04-04-2014, 08:22 AM
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Gasohol

All,

I wrote a little treatise about the subject (mixing gasoline and E85). If you're interested I started a new thread for it:

https://www.northamericanmotoring.co...ml#post3907932
 
  #1975  
Old 04-04-2014, 03:24 PM
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Alright. I'm going to ask a question and would appreciate it if you guys didn't shoot me because I did search quite a bit (and didn't understand a whole lot of what I read). But what is the general consensus on turning up the JB+ when you have an Aquamist Meth Kit? I know you can do it, but by how much?
 


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