Singing the JBD blues

lafayettelauren · 05-20-2014, 08:53 PM

I bought my 335D a couple of months ago and almost immediately installed the JBD. So I didn't have much time at all driving the car without it. I started at 60% and have worked my way up to 100%. I've found that if I don't floor it when the engine is cold I never get a check engine light. Anyways I am taking the car in for service and I removed the JBD a couple of days ago and driving the car without it just sucks. It feels like such a dog with it off. To anyone on the fence about purchasing one for their car do not hesitate. Order one today. I can't wait till I get the car back so I can reinstall it. Definitely the most bang for the buck mod I have ever done.

p27rpy · 05-20-2014, 09:41 PM

Gah I'm trying to be good and save up for a tune, but reading stuff like this makes it tough!

diaz92376 · 05-20-2014, 10:23 PM

I feel your pain I usually remove and install my jbd down the street from the dealer so I wont have to drive much without it.

Frediesel · 05-21-2014, 09:34 AM

Best money ever spent.

AzureHaze · 05-21-2014, 09:54 AM

Quote:

Originally Posted by Frediesel

Best money ever spent.

+1. Now it would be even better if I could floor it without warming up the car first!

335ddd · 05-21-2014, 12:22 PM

i was wondering before going back to the dealer, do you need to clear any errors dueto JBD via a tool (BMWhat, BT tool) or just restarting the car makes everything go back to normal?

even after clearing , is there a way a dealer can tell you been running JBD by looking at some sort of history log and seeing the uprated levels

Hoooper · 05-21-2014, 01:52 PM

Quote:

Originally Posted by AzureHaze

+1. Now it would be even better if I could floor it without warming up the car first!

its really just good for your own protection. Longevity of the turbo/seals can be greatly affected by giving it too much before the oil warms up.

Quote:

Originally Posted by 335ddd

even after clearing , is there a way a dealer can tell you been running JBD by looking at some sort of history log and seeing the uprated levels

if you threw codes they would. If there arent any codes thrown, no way to know. The DDE doesnt log stuff like max fuel pressure, torque desired, etc. for future viewing. Without codes, there wouldnt be any way for the dealer to know you had a JBD

335ddd · 05-21-2014, 02:06 PM

Quote:

Originally Posted by Hoooper

if you threw codes they would. If there arent any codes thrown, no way to know. The DDE doesnt log stuff like max fuel pressure, torque desired, etc. for future viewing. Without codes, there wouldnt be any way for the dealer to know you had a JBD

in general it seems like a chance of codes being thrown is pretty high unless you go full flash (Renntech, Evolve and so on). But if I erase the codes via BT Tool or BMWhat app, is there a history log kept of codes erased for the dealer to later dig up?

Hoooper · 05-21-2014, 02:31 PM

I dont know if or for how long the codes hang around in a log after they are cleared. I run my JBD at 100% all the time, drive quite a bit, and use sufficient pedal action pretty frequently but I only very rarely get JBD related codes. By that I mean maybe once a month or less.

lafayettelauren · 05-21-2014, 06:24 PM

OK the service is done. Time to reinstall my smile.....I mean my JBD. Side note... They gave me an X1 today as a loaner. Needless to say I will not be buying one any time soon.

GreekboyD · 05-21-2014, 06:53 PM

I've done so many mods to my car but have never been interested in the JBD. No real reason.

FormerRotor · 05-21-2014, 07:02 PM

Quote:

Originally Posted by GreekboyD

I've done so many mods to my car but have never been interested in the JBD. No real reason.

Wanna try it out, Greek? I'll ship you mine if you want to try it out for a week then ship it back. I'm not using it ATM as I'm working on a few things. Also, FWIW, it feels like meth is about as good as JBD. Both is really fun, though.

GreekboyD · 05-21-2014, 08:07 PM

Quote:

Originally Posted by FormerRotor

Wanna try it out, Greek? I'll ship you mine if you want to try it out for a week then ship it back. I'm not using it ATM as I'm working on a few things. Also, FWIW, it feels like meth is about as good as JBD. Both is really fun, though.

Thanks FR but for me I'd like to get the LSD before a tune. I can get the LSD right now but after dumping so much $$$$ into mods, I'm gonna hold off for a bit.

Hoooper · 05-21-2014, 08:12 PM

Definitely don't try it unless you plan to get one. If you do, once its off you will be online buying one within a day

DieselRacer · 05-21-2014, 10:09 PM

Quote:

Originally Posted by Hoooper

Definitely don't try it unless you plan to get one. If you do, once its off you will be online buying one within a day

I like that philosophy...

335ddd · 05-22-2014, 06:35 AM

anyone in NYC area with JBD

Mark M · 05-22-2014, 06:50 AM

This post brought out the devil in me.

After the last ~7000 miles at 75% I cracked it open last night and turned her up to 100%. All I can say is WOW!!!!. It pulls so hard and never stops, as if being shoved by the very hand of God!

I love this car!!!!

Puerto Rican 335d · 05-22-2014, 06:55 AM

I tell ya any mod either JB or RENNtech will bring this beast into a monster, Im like you guys i dont know what I would w/o it!!!

daveN007 · 05-22-2014, 11:38 AM

Quote:

Originally Posted by Hoooper

Definitely don't try it unless you plan to get one. If you do, once its off you will be online buying one within a day

I had bad luck with mine the first time I installed.

I'd love to confirm that I am doing it correctly. Any way I could convince you to meet me at your favorite lunch spot? :-)

Starbucks gift card?

Or if you have detailed pics?

I am in Norcal and all over the Bay Area pretty often.

135i_vs_ · 05-22-2014, 12:16 PM

Running JBd at 90% for over a year, never had limp mode or code thrown.

335D Alpha Pappa · 05-22-2014, 12:36 PM

How much does the JBD affect the mileage?

135i_vs_ · 05-22-2014, 12:37 PM

I've noticed 1mpg decrease.

05-20-2014, 08:53 PM	#1
lafayettelauren New Member 3 Rep 22 Posts Drives: 2011 335d Join Date: Apr 2014 Location: Lafayette IN iTrader: (0)	Singing the JBD blues I bought my 335D a couple of months ago and almost immediately installed the JBD. So I didn't have much time at all driving the car without it. I started at 60% and have worked my way up to 100%. I've found that if I don't floor it when the engine is cold I never get a check engine light. Anyways I am taking the car in for service and I removed the JBD a couple of days ago and driving the car without it just sucks. It feels like such a dog with it off. To anyone on the fence about purchasing one for their car do not hesitate. Order one today. I can't wait till I get the car back so I can reinstall it. Definitely the most bang for the buck mod I have ever done.
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05-20-2014, 09:41 PM	#2
p27rpy Private 92 Rep 87 Posts Drives: 2020 BMW M2C Join Date: Feb 2014 Location: Denver, CO iTrader: (0) Garage List 2020 BMW M2 Competi ... [0.00] 2008 Porsche Cayman S [0.00] 2016 BMW 328i [0.00]	Gah I'm trying to be good and save up for a tune, but reading stuff like this makes it tough!
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05-20-2014, 10:23 PM	#3
diaz92376 First Lieutenant 25 Rep 376 Posts Drives: 2015 435i Join Date: Jan 2013 Location: So Cal I.E iTrader: (1)	I feel your pain I usually remove and install my jbd down the street from the dealer so I wont have to drive much without it.
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05-21-2014, 09:34 AM	#4
Frediesel Private 8 Rep 82 Posts Drives: 318is Join Date: Mar 2014 Location: San Diego iTrader: (0)	Best money ever spent.
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05-21-2014, 12:22 PM	#6
335ddd Private First Class 8 Rep 179 Posts Drives: 2011 335D SE Join Date: May 2014 Location: NYC iTrader: (0)	i was wondering before going back to the dealer, do you need to clear any errors dueto JBD via a tool (BMWhat, BT tool) or just restarting the car makes everything go back to normal? even after clearing , is there a way a dealer can tell you been running JBD by looking at some sort of history log and seeing the uprated levels
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05-21-2014, 02:31 PM	#9
Hoooper Colonel 213 Rep 2,210 Posts Drives: 335D Join Date: Jun 2013 Location: Petaluma, CA iTrader: (0)	I dont know if or for how long the codes hang around in a log after they are cleared. I run my JBD at 100% all the time, drive quite a bit, and use sufficient pedal action pretty frequently but I only very rarely get JBD related codes. By that I mean maybe once a month or less.
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05-21-2014, 06:24 PM	#10
lafayettelauren New Member 3 Rep 22 Posts Drives: 2011 335d Join Date: Apr 2014 Location: Lafayette IN iTrader: (0)	OK the service is done. Time to reinstall my smile.....I mean my JBD. Side note... They gave me an X1 today as a loaner. Needless to say I will not be buying one any time soon.
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05-21-2014, 06:53 PM	#11
GreekboyD Brigadier General 411 Rep 3,049 Posts Drives: 2009 BMW 335d Join Date: Jan 2012 Location: Toronto, ON, Canada iTrader: (0) Garage List 2009 BMW 335d [8.00]	I've done so many mods to my car but have never been interested in the JBD. No real reason.
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05-21-2014, 08:12 PM	#14
Hoooper Colonel 213 Rep 2,210 Posts Drives: 335D Join Date: Jun 2013 Location: Petaluma, CA iTrader: (0)	Definitely don't try it unless you plan to get one. If you do, once its off you will be online buying one within a day
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05-22-2014, 06:35 AM	#16
335ddd Private First Class 8 Rep 179 Posts Drives: 2011 335D SE Join Date: May 2014 Location: NYC iTrader: (0)	anyone in NYC area with JBD
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05-22-2014, 06:50 AM	#17
Mark M Major 240 Rep 1,289 Posts Drives: E30M3 E83X3 E90335D Join Date: Aug 2007 Location: Lancaster, PA iTrader: (0)	This post brought out the devil in me. After the last ~7000 miles at 75% I cracked it open last night and turned her up to 100%. All I can say is WOW!!!!. It pulls so hard and never stops, as if being shoved by the very hand of God! I love this car!!!! __________________
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05-22-2014, 06:55 AM	#18
Puerto Rican 335d Brigadier General 229 Rep 3,488 Posts Drives: Montego Blue 335d Join Date: Jun 2011 Location: Puerto Rico(Dominican Republic 03/2017) iTrader: (0)	I tell ya any mod either JB or RENNtech will bring this beast into a monster, Im like you guys i dont know what I would w/o it!!! __________________ RENNtech Flash(Lenny Wu)/WAGNER IC Enkei Rajin 18"/Execuhitch Hitch/Koni FSD Soft Ride Bike Rack/Brava Synthetic Motor Oil(Made in Puerto Rico)/Meth(in the works)/CBU done w Andrew EGR Race Pipe (whoa! what an animal it is now)
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05-22-2014, 12:16 PM	#20
135i_vs_ Captain 73 Rep 697 Posts Drives: M5, 135i, 335d, F10 550xi Join Date: Sep 2011 Location: CT iTrader: (0)	Running JBd at 90% for over a year, never had limp mode or code thrown.
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05-22-2014, 12:36 PM	#21
335D Alpha Pappa Second Lieutenant 43 Rep 237 Posts Drives: 2011 335D Join Date: Apr 2014 Location: NY iTrader: (0)	How much does the JBD affect the mileage?
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05-22-2014, 12:37 PM	#22
135i_vs_ Captain 73 Rep 697 Posts Drives: M5, 135i, 335d, F10 550xi Join Date: Sep 2011 Location: CT iTrader: (0)	I've noticed 1mpg decrease.
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