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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > JB3 v1.1 Dyno



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      10-11-2008, 12:49 AM   #1
mmmotornutz
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JB3 v1.1 Dyno

Conditions: 68.9 deg F, 29.4 in-Hg
Humidity: 6% -> This seemed kind of low.
STD: 1.01

Dyno run was done in Livermore, CA at Modacar with one single fan at the IC. No fan was pointed at the intakes. Car has DCI and I pumped about 9 gallons of 100 octane right before the runs. I didn't have a chance to do any WOT runs prior to the dyno run though. So it slowly adapted after the 3 runs as the graphs and numbers will show. This is my baseline before I put on an FMIC and power kept on creeping up the more runs we did. I think with enough runs, I would've made 350+ whp.

3rd and last run (best) was:
349.7 WHP
359.0 WTQ

2nd run:
345.2 WHP
356.73 WTQ

1st run:
342.3 WHP
349.5 WTQ

On a side note, the Dynolicious App calculated 346 whp...pretty darn close! Also the speed hit close to 150 mph in 4th but the dyno measured 135 mph.
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      10-11-2008, 01:10 AM   #2
SfValley335i
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pretty good #'s..... Next thing you need to upgrade is your scanner
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      10-11-2008, 01:19 AM   #3
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Nice!!!

What IC did you get?
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      10-11-2008, 01:42 AM   #4
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Originally Posted by thr33fivei View Post
Nice!!!

What IC did you get?
I didn't get it yet but I am looking at the Code3 which I am planning on picking up in January.
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      10-11-2008, 01:43 AM   #5
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Originally Posted by SfValley335i View Post
pretty good #'s..... Next thing you need to upgrade is your scanner
Yea I know. I tried to upload one with a better resolution but the size was too big.
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      10-11-2008, 12:37 PM   #6
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When you dynoed did you have any other mods than JB3?
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      10-12-2008, 05:19 PM   #7
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Originally Posted by robbie211 View Post
When you dynoed did you have any other mods than JB3?
Read post please.
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      10-13-2008, 07:04 AM   #8
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pretty good numbers... did your jb3 come with the v1.1 chip? if not were you able to tell the difference before and after it?
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      10-13-2008, 07:47 AM   #9
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Thanks for posting your results!
Few thoughts:
Tq seems low to me (I don't see in your post ig you're 29.2/V81, but even if you are, I would expect to see tq a good chunk above hp). Also, why run 100 octane? Do you run it everyday, all the time?
Last, did you get in a full, clean 1/4 mile run for your dynolicious to read the 346 whp? I rarely have the room to run like that, so I often have to settle for shorter blasts to get my readings. That said, I haven't come that close to 346 whp (using 0% loss, and 3500 lbs), on my brother's car with the JB3. I think it was something like 306 and 330 the last two times I did it. Granted, that's with 1.0, not 1.1, and that's some statistically scarry variation in numbers to accept them as being accurate.
FYI - The only full 1/4 mile I have been able to fit in was on a SLIGHT (maybe 3-5 degrees) uphill, and I recorded a 13.1 @ 111 mph, so figure if it were level and I launched harder, it'd be a 12.7 @ 113 or so, which I guess if near par for the JB3.

Last edited by ezatnova; 10-13-2008 at 08:27 AM.
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      10-13-2008, 11:05 AM   #10
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Originally Posted by 1clean335i View Post
pretty good numbers... did your jb3 come with the v1.1 chip? if not were you able to tell the difference before and after it?
no originally 1.0. Yes, 1.1 feels better down low.
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      10-13-2008, 11:22 AM   #11
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ezatnova: I have a Pre 29.2 ecu and wired the JB3 as such. The powerband to me looks similar to a 29.2 ecu, might be the 1.1 chip, IDK. As far as the dynolicious, I do 0-60 mph runs to practice launching. My DT loss is 20% and 3750 pounds. I place my phone on the phone holder in the arm rest and consistently got 340 whp.
I run 100 octane most of the time because I don't have DPs and the car feels better with it.
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      10-13-2008, 11:42 AM   #12
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Quote:
Originally Posted by mmmotornutz View Post
ezatnova: I have a Pre 29.2 ecu and wired the JB3 as such. The powerband to me looks similar to a 29.2 ecu, might be the 1.1 chip, IDK. As far as the dynolicious, I do 0-60 mph runs to practice launching. My DT loss is 20% and 3750 pounds. I place my phone on the phone holder in the arm rest and consistently got 340 whp.
I run 100 octane most of the time because I don't have DPs and the car feels better with it.
Interesting. I'll have to try another go or two. Also, I jam mine in the rubber base of the arm-rest. If you open the arm rest and set it in there, and push it foward, it is rock solid. It is bound to do SOME moving if you merely strap it into the leather ipod holder (plus, how do you press the button then!?). Maybe I am not understanding you and you do mean you jam it in the arm rest in the same place I'm talking about.
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      10-13-2008, 01:06 PM   #13
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Quote:
Originally Posted by ezatnova View Post
Interesting. I'll have to try another go or two. Also, I jam mine in the rubber base of the arm-rest. If you open the arm rest and set it in there, and push it foward, it is rock solid. It is bound to do SOME moving if you merely strap it into the leather ipod holder (plus, how do you press the button then!?). Maybe I am not understanding you and you do mean you jam it in the arm rest in the same place I'm talking about.
I actually push it to the rear so that it wont move under acceleration. I leave the arm rest cover open so that I can press the button. I have the trigger set so that it won't start measuring until my car jerks due to the drop of the clutch.
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