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Default 07-01-2018, 09:54 AM

Quote:
Originally Posted by Terry @ BMS
Fueling is looking good to me, so far. The DME targets a leaner AFR at first and then richens it up as EGT builds. It's a different approach on their end but they are trying to run them as lean as possible as long as possible for emissions purposes.

With the JB4 we can change the air/fuel ratio & increase the fueling trim range, but we'd have to release add on connectors for it. So far at the 700whp range I haven't found a need. We'll have see how higher power levels look.
My F90 is much leaner than my F85 stock to stock. The inside of the tailpipes on the F85 went black quickly after a week. After 1500 miles the F90 ***** are clean. Obviously, DI does not require the same AFR as PFI, but this seams pretty lean. I would have guessed a 12.5 : 1 at least at wot. Strange factory tune.
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Default 07-06-2018, 10:36 AM

Quote:
Originally Posted by kokoN63TU
Because itís so lean my question is if it wonít blow the engine in the future
If you're unhappy with the factory mapping contact BMW for assistance. Direct injection cars run great lean, and it goes richer up as EGT builds, as you'd expect.


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Default 07-08-2018, 07:39 AM

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Originally Posted by Terry @ BMS
Here is a recent JB4 dyno showing some of the power potential of the platform with a JB4 in the mix. Fuel here was 91 octane with a few gallons of E85 mixed in. Similar to good 93-94 octane.

Much more work to go but the tuning potential is there.



Attachment 75569

Attachment 75566

Attachment 75567

Attachment 75568
Are those logs STOCK, 21psi and 23psi ?
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Default 07-08-2018, 09:03 AM

Each run is labeled.


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Default 07-08-2018, 09:04 AM

Quote:
Originally Posted by kokoN63TU
Terry ?!
Not sure what your question is. If you are asking whether we're conformable with the fuel mapping, as stated, we are. Because it richens out as EGT increases, as seen in 1/4 mile logs.


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Default 07-08-2018, 11:19 AM

Quote:
Originally Posted by Terry @ BMS
Each run is labeled.
Where ?
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Default 07-08-2018, 11:58 AM

In the dyno chart you posted, at the bottom, next to the peak power levels.


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Default 07-08-2018, 12:54 PM

Quote:
Originally Posted by Terry @ BMS
In the dyno chart you posted, at the bottom, next to the peak power levels.
Iím referring to the logs not dyno graphs. Just wanted to be sure that first log was a pure stock log. Iím basing my guess on the psi peak around 20.
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Default 07-08-2018, 01:15 PM

Target is 0 so it's a stock log.


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Default 07-08-2018, 07:13 PM

Quote:
Originally Posted by Terry @ BMS
Target is 0 so it's a stock log.
Thanks. Itís interesting that the Dynojet does not create enough load for egt that a street pull does :
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Default 07-08-2018, 07:34 PM

Dynojet runs are lower load and single gear.


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Default 07-12-2018, 07:47 AM

Terry, any idea when you will be able to do some more logged 1/4 mile runs?
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Default 07-12-2018, 12:35 PM

Soon! Car is back from it's first service. Just need to find the time to run some of the 91 craptane I have in there out so I can mix in a little unleaded race gas to get octane up to 93-94.


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Default 07-12-2018, 02:13 PM

Outstanding thank you Sir! You know many of us are chomping at the bit waiting for updated results. The preliminary results have already been amazing!!
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Default 07-12-2018, 08:44 PM

Quote:
Originally Posted by kokoN63TU
What about a rooling race video for compertion ?!!
Stock f90 vs jb4 f90 ?!?!!?
Very interesting
We're not really that aggressive on marketing. Our products speak for themselves when run by customers. But next 1/2 mile event we'll definitely do some fun comparison runs against our 2015 M5 and other development cars.


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Default 07-13-2018, 08:35 AM

Quote:
Originally Posted by kokoN63TU
Who spoke about marketing?!
This video is very interesting
Maybe the opposite is the right
That video like this will hart your product because the gap is not that big


I donít see any wrong to do a video like this
Maybe bms as a company are great but this beta tune for the M5 f90
Donít speak for itself sorry not yet!
To much open question

We didnít see nothing from this product yet
I know that at the end it will be great but till now there is no some solid info sorry


I really wanna pull the trigger but waiting for something to Handle with
The dyno and dragy results should speak for themselves. Pull the trigger, you won't be dissapointed the car is a rocket with the JB4.


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Default 07-13-2018, 01:26 PM

Quote:
Originally Posted by kokoN63TU
What about the Thrutel ?
When you raise boost it close
And the graph getting to 5,800 rpm

Btw my friend
You promised to do dragy run 100-200 kmh
Can’t wait to see
Throttle is as mapped from the factory and with all EWG integrated tuning remains in use to regulate boost on target. Since the throttle blade is so large relative to its inlet piping depending on the RPM it would have to close 40-50% before it starts to effect manifold boost/power. We normally dampen it in the back end flash maps not because it adds any power but because customers are trained to believe it's a problem and it's easier to change it than to continually explain that it's not.


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Default 07-13-2018, 02:01 PM

Quote:
Originally Posted by kokoN63TU
What about a rooling race video for compertion ?!!
Stock f90 vs jb4 f90 ?!?!!?
Very interesting
0.30 in the 10 seconds is a lot difference ...


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Default 07-13-2018, 03:55 PM

Quote:
Originally Posted by kokoN63TU
When do you think you will launch firmware after this beta?
Are you guys working on it right?!
And if Iím ordering jb4 beta Version it comes with all I need right?!

The extra wires for the EWG and everything right?
Terry is working on it daily, once he makes enough changes he will update firmware when needed.

The JB4 Beta will come with everything you need, the 2 Tmap connectors, 2 EWG connectors, and a OBD connector. I will suggest the Bluetooth usb device for logging as well.


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Default 07-16-2018, 08:36 AM

Quote:
Originally Posted by kokoN63TU
We're always in development across all our platforms. Terry will get some more numbers when he has time.


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Default 07-16-2018, 02:29 PM

Quote:
Originally Posted by Payam @ BMS
We're always in development across all our platforms. Terry will get some more numbers when he has time.
So.....?!
Terry already said he did some dragy runs
Why didnít he post it here with pictures?
To see everything...
we wanna get some info
Why everything is so hard and difficult with you guys
It will take him 5 sec to share with us the pictures

So ...........
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Nanometer Nanometer is online now
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Default 07-16-2018, 04:20 PM

You have to understand that Terry is running a business, and he can't always just deep dive into what would likely be the most fun. He needs to also maintain support for other platforms where 99% of the other customers currently are. Future development often takes a second seat, as much as we would want to get the results asap. Have patience!


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Default 07-16-2018, 05:24 PM

Quote:
Originally Posted by Nanometer
You have to understand that Terry is running a business, and he can't always just deep dive into what would likely be the most fun. He needs to also maintain support for other platforms where 99% of the other customers currently are. Future development often takes a second seat, as much as we would want to get the results asap. Have patience!
Hahahahahahaha
He is here once in a while
He could share the pictures any time he wants
This is a part of the business!
Very interesting and important part
So do me a favor!!!!
He had time to share Mo dragy pictures
Or jb4 beta dyno
And he share with us 60-130 dragy time
But when we ask for dragy time of it

He is running a business?!
This is his business!!!!!!!!!!
This is part of marketing
I know that he owns this site
But come on .... stop doing what you doing
Iím not saying something bad
If everything was right I would buy one for my f90
Weeks ago!
What is so difficult!!!!!!!!!!!!
Dragy pictures of acceleration
100-200
60-130
1/4
You donít wanna share?!
Donít share!
Have a good luck (very disappointing)
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Default 07-16-2018, 06:22 PM

I posted these weeks ago to dragy's leader board. As mentioned not had time to do new runs. Busy with other projects, but we've got around 20 of these systems out in the wild now around the world. I'm sure customer results will start showing up. And I'll get some fresh times later this week or weekend.
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Default 07-17-2018, 07:08 AM

Terry every evening I’m thinking about get the beta f90
And every time I’m thinking maybe I should wait 1 more day
Maybe tomorrow we will get a picture of 100-200 time
With a grade of course

Waiting like a weeks

For your attention my friend...
20 betas all over the world is not good enough to really learn and see what happens

No video vs something
Nothing
Like hiding this info
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