[brianhn1]

JB3 1.3 Beta continues to be a work in progress however, draft 8A5 has displayed significant improvements regarding improved feel, response, power, and ease to adaptation.

Improved consistency
The one thing I can clearly conclude from this draft version is that the consistency in feel regarding smoothness, expected response, and specific expectation in power has been significantly improved. Smoothness has to come from accurate use of timing advancement and boost intensification/tapering that matches well to the turbos and the performance of the engine. Expected response comes from matching feedback from the gas pedal defined by the driver to the actual power output of the engine. I did not say linear response because our engine has no where near a linear power curve. An electric motor can be said to have a linear response based on RPM because torque typically increases as the speed of motor shaft increases in its designed operating range. Finally specific expectation of power is accurately explained by having no hesitation at partial or full throttle.

Increase in power
In comparing to 1.22, 1.3 Beta has upped the power threshold for the N54 engine especially with stock bolt ons. 1.22 may have had some issues regarding its inconsistencies in boost/timing curves especially in higher maps (eg. map 5/6). But with the same numbered maps in 1.3, I have clearly noticed increased power even for my stock vehicle (based on 1/4 mile testing on the strip, unofficial testing on the street, etc.). My explanation for this is because of better boost targeting/timing curves that is better matched to the N54. Improved feedback for 1.3 from beta testers only improves the algorithms and boost/timing curves.

Ease to adaptation
The N54 has many parameters for adaptation. 1.3 has noticeably reduced the adaptation time in all maps that I have tested: map 3, 4, 5, 6, and 8. My car has seldom experienced throttle closure or timing being pulled. I always had issues before with timing so I have had some adequate experience with it. Some may recall some issues with timing being pulled in 8A4 but it has been resolved in 8A5.

*****
1/4 mile results
I'm born an engineer so numbers are all I really understand. Took my car out to Orlando Speedworld for a few runs on the 1/4 mile. History: jason427 did his record run (135i 6AT tune only) on this same track during a private track day.

Vehicle Specifications:
'08 335i E90 6AT
JB3 1.3_8A5 map 8 (really map 7 based on 1.22 list)
275/40R17 Nitto 555Rs @ 23 psi
stock airbox, intercooler, DPs
~100 octane - Sunoco GT 100, 1/8 tank

DA:
+466ft @ 8PM (Alt: 55ft, 65F, 30.10inHg, 58F dew point)

Adaptation routine:
Approximately 15miles from the drag strip, gauge reads empty (needle doesn't move up on ignition start). I fill up gas tank with 2.5 gal of 100 octane. Performed 5 WOT runs from 1st gear to 3rd gear (30-120mph). I knew it was well adapted by the time I got near the track as I would get wheel spin in 2nd gear on a WOT run.

1st run:
60' 1.979
1/8 8.115 @ 90.79mph
1000 10.457
1/4 12.424 @ 114.90mph
*with a 2nd gear launch while spinning out of the box

2nd run:
60' 2.326
1/8 8.685 @ 90.18mph
1000 11.031
1/4 12.999 @ 113.98mph
*2nd gear launch still spinning; track prep was terrible

3rd run:
60' 2.249
1/8 8.670 @ 89.93mph
1000 11.026
1/4 13.005 @ 114.23mph
*2nd gear launch still spinning when I backed off twice and accidentally jabbed it too hard to downshift to 1st

Conclusion:
(1) Heating both DRs evenly is a biatch. (2) Sharing a track with morons sucks a$$. (3) Running DRs on a N54 for the 1st time is the slippery slope to terrible times. LOL

Witnesses:
*Mike (Alpine_e82 on n54tech.com) was there and did great with his car; 116+mph traps; thanks for coming along, even taking/dealing with the wifey

*Brock (GeorgiaTech335coupe) took his 335i (6MT, 100 octane, DCI, Proxes 888s on rear stock 18"s) Procede V3 coupe and ran against me. He was stunned/impressed/surprised with the JB3ers. Shiv was immediately fed with out of chair falling information following our 1st race (Ouch). However, his last run he pulled 114mph trap out of thin air. Surprised the hell out of him since the entire time since his V3 only got him 110-111mph every previous run on the same day.

*Guy in a black 135i 6AT with navi, stock 18" sport wheels, and JB3 1.22. Didn't catch his name and by luck came out to meet us. Knew nothing about 1.3 beta with the chip burners: Dang that guy is missing out! Did great on his run against Mike; 111mph on map 7 or 8, 100 octane gas.

In the end, it was lots of fun. I just need to solve my traction issues and I'll be ready for round 2.

PS. Everyone, if they can, should test 1.3 beta and give feedback.

[Septro]

Great write up and nice to see solid runs on a stock car with just a tune. It looks like your top runs were tied to your 60ft times. So practice would make perfect I guess and there's room to get that 12.4 down even more.

congrats!

[jpsimon]

Nice, you should be happy with those results! How does hotrod trap 4-5mph faster than everyone else?

[GeorgiaTech335coupe]

I must say I was impressed by how the jb3 performed and a little frustrated at the same time. But in the end I did get a 114 mph trap in a MT so I was very satisfied with that. The map I was running was probably too aggressive on the top end as it was developed for a fully modded 335. This was apparent in that my 1/8 mile mph was the same on my 111.5 mph run and my 114 mph run. I was trapping the same as Brian in the 1/8 at around 90 mph on my runs. I'm sure the next time I go to the track, I'll have something a little more dialed in and will see that 114 mph trap on a consistent basis.

[Septro]

Originally Posted by jpsimon

Nice, you should be happy with those results! How does hotrod trap 4-5mph faster than everyone else?

uuhhh.. NOS?

I keed, I keed! But seriously I think Hotrods 60ft times are a little better and he's probably done the launches and rowing of the gears for WOT runs so many times that he's getting every little bit out of the car. But 4mph difference is a lot to make up I would grant you that.

edit: nm he's an AT.. so much for rowing gears. Ok so he DS shifts really good!

[brianhn1]

Originally Posted by jpsimon

Nice, you should be happy with those results! How does hotrod trap 4-5mph faster than everyone else?

Magic, haha.

He trapped at about 117mph for his record run but he had weight reduction and 105 octane gas.

[GeorgiaTech335coupe]

Originally Posted by jpsimon

Nice, you should be happy with those results! How does hotrod trap 4-5mph faster than everyone else?

I think those runs were on 104 or 105 octane. Honestly, after I trapped 114 mph on 100 octane, I'm beginning to think 116-117 mph is plausible on 104-105 octane.

[jpsimon]

He's trapped up at 118-119 I thought previously too?

[brianhn1]

Originally Posted by GeorgiaTech335coupe

I must say I was impressed by how the jb3 performed and a little frustrated at the same time. But in the end I did get a 114 mph trap in a MT so I was very satisfied with that. The map I was running was probably too aggressive on the top end as it was developed for a fully modded 335. This was apparent in that my 1/8 mile mph was the same on my 111.5 mph run and my 114 mph run. I was trapping the same as Brian in the 1/8 at around 90 mph on my runs. I'm sure the next time I go to the track, I'll have something a little more dialed in and will see that 114 mph trap on a consistent basis.

Yeah fix those maps you are running and I'm sure you'll have consistent 114mph traps in those same conditions.

[GeorgiaTech335coupe]

Originally Posted by jpsimon

He's trapped up at 118-119 I thought previously too?

On Vbox, but not officially at a track, I believe.

[brianhn1]

Originally Posted by GeorgiaTech335coupe

I think those runs were on 104 or 105 octane. Honestly, after I trapped 114 mph on 100 octane, I'm beginning to think 116-117 mph is plausible on 104-105 octane.

I say we rent out that track for one full day and work on some nice numbers. 5 cars would be too few ($1060 for 5 cars) but I think more would be great.

[hotrod182]

Originally Posted by GeorgiaTech335coupe

On Vbox, but not officially at a track, I believe.

Figure the Vbox reads .5-1.0 mph faster than some of the tracks. Although the 117.91 was also done on the standard map #7, not the turbomelter. All my testing with the turbomelter consistantly got me .5-1.0 mph faster than map #7.
The 1/4 mile times are right on. You guys did fine. FYI, my testing on 91 octane map #6 the other day and this morning were high 12's, with 2.1-2.2 60' time. You need to be getting 1.7-1.8 range to really get the good times.


JB3 1.3 Beta Map: 8A4 3/17/09
50F, 91 octane Shell. 19” Generals.
Map#6

Run#1 DS Mode:
¼ mile: 12.8 sec at 114.6 mph
2.2 sec 60ft
1/8 mile: 8.5 sec at 91.6 mph
0-60mph: 4.5 sec

Run#2 DS Mode
¼ mile: 12.8 sec at 114.3 mph
2.2 sec 60ft
1.8 mile: 8.4 sec at 91.4 mph
0-60mph: 4.5 sec

Run#3 DS Mode
¼ mile: 12/8 sec at 114.5 mph
2.2 sec 60ft
0-60mph: 4.5 sec


JB3 1.3 Beta v. 8A4 3/21/09
55F, 91 octane Union 76. 19” Generals.
Map#6

Run#1 DS Mode:
¼ mile: 12.8 at 113.3 mph
2.1 sec 60ft
1/8 mile: 8.4 sec at 91.0 mph
0-60mph: 4.4 sec

Run#2 DS Mode:
¼ mile: 12.7 at 114.0 mph
2.2 60ft
1/8 mile: 8.4 sec at 91.5mph
0-60mph: 4.4 sec

Run#3 DS Mode:
¼ mile: 12.8 sec at 113.8 mph
2.2 sec 60ft
1/8 mile: 8.4 sec at 91.0 mph
0-60mph: 4.4 sec

Run#4 DS Mode
¼ mile: 12.7 sec at 114.3 mph
2.1 sec 60ft
1/8 mile: 8.3 sec at 91.6 mph
0-60mph: 4.4 sec

I'm still trying to quantify the improvement with 17" DRs, If I am up to it, I will slap them on and make some more runs. A 1.9-2.0 60' should get me 12.4-12.5's on map #6 91 octane. Last time I put them on my traps when down. And I am still wondering if that was an anomoly.. Notice this a.m, I was running on the Union 76, instead of the nitrogenated Shell. So far, doesn't really seem to be a significant difference. There are more differences due to ambient temps and DAs than just about everything else. If not the 5 deg warmer temps, maybe the Union 76 is a little weaker? Too many variables. And as all of you can see, you really need to make 3-4 runs to see what your car is capable of. The results definitely can vary by 1mph easily from run to run, as they can on a dyno also.

[Italia335i]

Originally Posted by jpsimon

He's trapped up at 118-119 I thought previously too?

Why not get a JB3 and try it yourself? Or even better, do some testing of your own rather then question everyone elses.

[hotrod182]

Actually I already have runs on file with just that change (The 17" DRs). Here they are.

JB3 1.3 Beta Map: 8A 3/15/09
49F, 91 octane. 17” Kosei/Hoosiers 28psi
Map#6


Run#1 DS Mode:
¼ mile: 12.5 sec at 115.9 mph
2.1 sec 60ft
1/8 mile: 8.2 sec at 92.8 mph
0-60mph: 4.2 sec

Run#2 DS Mode:
¼ mile: 12.4 sec at 115.9 mph
2.0 sec 60ft
1/8 mile: 8.1 sec at 92.7 sec
0-60 mph: 4.1 sec

Run#3 DS Mode
¼ mile: 12.4 sec at 115.7 mph
2.0 sec 60ft
1/8 mile: 8.1 sec at 92.6 sec
0-60mph: 4.1 sec

Run#4 DS Mode:
¼ mile: 12.5 sec at 115.2 mph
2.1 sec 60ft
1/8 mile: 8.2 sec at 92.6 mph
0-60mph: 4.1 sec


Either way, I will try and do the test again to confirm whether or not there is a .4 sec 1mph+ improvement again. I mean, same day, same tank of gas is really the best way to get the data.

So what is interesting here is that my 60's times are still 2.0+ secs. (a possible drawback of these high toque maps). So much of the difference comes from being able to keep the throttle floored through 1st gear till redline, and not short shifting a 4000 rpm.

[5soko]

Originally Posted by Italia335i

Why not get a JB3 and try it yourself? Or even better, do some testing of your own rather then question everyone elses.

He should try 1.3, theres even a 2 week return on it.... you can do alot in 2 weeks

p.s. i think the op's DA was on the few hundred + side, and above 60*F.... most good trap speeds happen at couple hundred negative DA and somewhere around 50*F.. im sure with a better DA/temps and some higher octane, 117mph would be possible.

[Mike@N54Tuning.com]

Thanks for all the testing guys.. Really appreciate all the feedback that is coming back.

1.3 is really an awesome map set, and its getting better everyday. There are a few new features that need to be implemented into 1.3 before its officially finished

Everybody should give it a try, and as you all know there is a 14-day money back guarantee on the JB3 so its worth a shot

Mike

[jpsimon]

Originally Posted by Italia335i

Why not get a JB3 and try it yourself? Or even better, do some testing of your own rather then question everyone elses.

I'm genuinely curious, that's why. Not calling anyone out. No need for the hostility Italy

[jpsimon]

hey hotrod, sent you a PM

[hotrod182]

With all these great traps but traction problems, I think someone with an XI will probably hit the 11's before long.

[ssabripo]

Originally Posted by hotrod182

With all these great traps but traction problems, I think someone with an XI will probably hit the 11's before long.

indeed.

if only i hadn't missed the shift to 3rd (and shifter too late in redline, thus it "limped" for a sec), I could have had a pretty nice time on map6, everything else stock (including RFT's) I really tappered off at the top because of this.


http://www.dragtimes.com/BMW-135i-Timeslip-17579.html

[Crisp]

I got my 1.3 a week ago, and I don't know which version it is...how can I tell?

Quick review from me:

2009 E93 335i Auto.
BMS Single cone intake.


My first test was a top speed run on map 6 on 1.3.
I launched the car at 2k, got wheel hop, but once I got into second, the car pulled like hell. The car felt strong and it definitely pulled harder on the top end where the 1.22 would die out (5.5k-6.8k RPM).
All was fine up to 150mph, then the car went into limp mode at around 152mph and the oil temp was a tick (if even) over 250 degrees.

Second run was done on map 5.
This time I punched it on a roll in 2nd gear and took it all the way up to top speed. The car did not feel as strong as map 6, but it still did not die out on the top end. No limp mode this time and the oil temp was a tick below 250 degrees.

I played around with both maps, and the oil was definitely hotter on map 6 than 5. I usually don't push the car once the temp gets to 250 degrees, but this is where i stood most of the time with map 6 while I was doing "spirited driving".

Today, I was doing some 1/2 throttle pulls in 2nd and 3rd gear on map 5, and the car was hiccuping a lot more than 1.22 used to under 1/2 throttle acceleration.
It pulls fine under full throttle, and drives fine when you are not pushing it, but it just doesn't like 1/2 throttle pulls while I was holding it in 2nd or 3rd gear in Manual Mode.
If I am giving it 1/2 throttle while in "D", it does not hiccup.

Another "incident" that happened, was last night when I went to start the car after it was off for about 1hr, it cranked for a good 3 seconds before it started. I didn't think that it was going to start and was about to push the STOP button, but it did. This hasn't happened today and car starts just fine.


PS. Lag is a lot more evident than 1.22.
I already ordered a BT scanner and a chip burner to update and see what codes it has thrown.

[A418t81]

GaTech, and other 6MTs, when are you shifting to 4th? That shift so near the end of the track absolutely kills my MPH. I'm lucky to gain 22-23 mph on the back half when every other car I've owned has done 24+