A few noob JB+ questions

Mpower77i · 06-01-2011, 12:16 PM

Appreciate any feedback or links to threads where any of this was already covered.

#1. Last week I installed a DCI with no noticeable power increase as expected. With a JB+ later installed, roughly how much HP will be directly attributed to the DCI itself? Ive read the Burger dyno chart but dont know the tune setup they used.

#2. My warranty has expired. Any issues with dealers creating problems due to boost codes? Possibly not backing up any future work they do on a "modified" car?

#3. At what point would a aftermarket intercooler be needed to extend the life of the turbos. If there some boost or HP threshold. example: above 400hp or 12psi?

Thanks, I know it gets tedious answering the same questions over and over again. Hopefully this helps any other noobs wondering the same.

my1st · 06-01-2011, 12:45 PM

I have found the following to be most likely since I've been researching the same setup.

1. Maybe 5-10hp can be attributed to the DCI when you begin to increase boost pressure. (But the DCI sounds sweet so thats worth the money anyway)
2. The JB+ on stock 2.75psi setting should not produce code. I am not aware of anyone who has gotten tuner/overboost code from it. It is posted somewhere that the 2.75psi is almost exactly the amount of extra boost the car was designed for to account for increased turbocharger speeds at high altitude. I believe the numbers were .6bar (8.82psi) stock at sea level to .8bar (11.76 psi) stock at high altitude. Notice 11.76-8.82=2.94. Turbo must spin faster to create same boost at altitude. Someone please correct if this info is mistaken.
3. An aftermarket IC would benefit even an all stock motor. As boost increases it will only help more. Also DCI is probably sucking in some warmer engine bay air. Increasing boost any amount and feeding the car slightly hotter air.....If I were the car I would appreciate the intercooler. Hope this helps some.

Mpower77i · 06-01-2011, 03:18 PM

Quote:

Originally Posted by my1st

I have found the following to be most likely since I've been researching the same setup.

1. Maybe 5-10hp can be attributed to the DCI when you begin to increase boost pressure. (But the DCI sounds sweet so thats worth the money anyway)
2. The JB+ on stock 2.75psi setting should not produce code. I am not aware of anyone who has gotten tuner/overboost code from it. It is posted somewhere that the 2.75psi is almost exactly the amount of extra boost the car was designed for to account for increased turbocharger speeds at high altitude. I believe the numbers were .6bar (8.82psi) stock at sea level to .8bar (11.76 psi) stock at high altitude. Notice 11.76-8.82=2.94. Turbo must spin faster to create same boost at altitude. Someone please correct if this info is mistaken.
3. An aftermarket IC would benefit even an all stock motor. As boost increases it will only help more. Also DCI is probably sucking in some warmer engine bay air. Increasing boost any amount and feeding the car slightly hotter air.....If I were the car I would appreciate the intercooler. Hope this helps some.

Appreciated!

Id love to know from anyone that has set their JB+ to max settings if they've run into any issues with a dealer, post warranty.

Tuner1984 · 06-01-2011, 04:19 PM

You shouldn't have any issues with the dealer. No codes. If you run 100 percent make sure you setup the by pass valve. Also the JB+ is easy to take in and out. It's definitely a good bang for the buck to make additional power without spending a ton. With DCI and JB+ before I moved on to Cobb with the setting at 100 percent I hit 12 lbs. This is definitely a conservative boost level for the car. You shouldn't have any concerns.

my1st · 06-02-2011, 01:23 PM

Has anyone had or known someone who had any problem whatsoever or negative review with the jb+ at 50%. I am planning on getting one with the BT cable. I've searched and have not found any drawbacks (other than maximum power). Thanks

Tuner1984 · 06-02-2011, 04:19 PM

Quote:

Originally Posted by my1st

Has anyone had or known someone who had any problem whatsoever or negative review with the jb+ at 50%. I am planning on getting one with the BT cable. I've searched and have not found any drawbacks (other than maximum power). Thanks

No you shouldn't have any issues with it at 50 percent. Its a good bang for the buck!!

WWM3 · 06-02-2011, 04:27 PM

Quote:

Originally Posted by my1st

Has anyone had or known someone who had any problem whatsoever or negative review with the jb+ at 50%. I am planning on getting one with the BT cable. I've searched and have not found any drawbacks (other than maximum power). Thanks

You shouldn't have any issues.

PeteW84 · 06-02-2011, 05:23 PM

Quote:

Originally Posted by my1st

Has anyone had or known someone who had any problem whatsoever or negative review with the jb+ at 50%. I am planning on getting one with the BT cable. I've searched and have not found any drawbacks (other than maximum power). Thanks

You'll be fine at the 50% setting. I've had my jb+ for two years now, anywhere from 75% to 100% setting without a single problem. Not a single code, limp mode.

my1st · 06-02-2011, 11:33 PM

Okay thanks for the replies. I'm going to start out with a JB+ and go from there.

Tuner1984 · 06-03-2011, 07:03 AM

Good luck!!! The JB plus is a great tune, but your probably going to want more power eventually!!!

MKE_M3 · 06-03-2011, 08:02 AM

ditch the JB+ and get a Procede or a JB4. I did, and it is night and day how much better the Procede is!

zltm089 · 06-03-2011, 11:47 AM

I've got a JB plus...no issues so far....had it on default setting...then i started craving for more power and move the dial up 2 notches....no probs so far....

very keen to hear other peolpe's experiences and if you guys have run your jb plus at 100% and for how long etc....

zltm089 · 06-03-2011, 11:50 AM

Quote:

Originally Posted by Tuner1984

You shouldn't have any issues with the dealer. No codes. If you run 100 percent make sure you setup the by pass valve. Also the JB+ is easy to take in and out. It's definitely a good bang for the buck to make additional power without spending a ton. With DCI and JB+ before I moved on to Cobb with the setting at 100 percent I hit 12 lbs. This is definitely a conservative boost level for the car. You shouldn't have any concerns.

sorry....i'm clueless when it comes to tuning and mechanics....

what and where is the bypass valve? ...and how do i "set it up" ?

Charleston335 · 06-03-2011, 04:06 PM

Solenoid bypass and its def worth doing! I have it done at 100% and it pulls nicely.

Mpower77i · 06-03-2011, 11:53 PM

Id still love to know about any negative dealings with the dealer POST-warranty. Im not so much trying to be convinced that a JB+ wont throw a code at 75% to 100%. But rather, if a code IS present, will a dealer deny backing up their parts and labor?

For example: the HPFP. Recently, Ive gone into limp mode AFTER the recall work has been done. I want to know that a dealer will not use a code as an excuse to not replace or fix what they're responsible for.

Im basically feeling out whether someone in my shoes should spend the money on a BT scanner with a POST warranty car.

Thanks guys

Jeff@TopGearSolutions · 06-04-2011, 12:00 AM

Best rule of thumb: If you have to ask if a dealer will deny a claim chances are they can if they want to.

However dealer work is warrantied for a certain period of time so you would need to check with them.

Mpower77i · 06-05-2011, 12:46 PM

Quote:

Originally Posted by Jeff@topgearsolutions

Best rule of thumb: If you have to ask if a dealer will deny a claim chances are they can if they want to.

However dealer work is warrantied for a certain period of time so you would need to check with them.

Makes perfect sense. Thanks

Its that dreaded HPFP issue that lingers well beyond the warranty expiration

06-01-2011, 12:16 PM	#1
Mpower77i Second Lieutenant 24 Rep 214 Posts Drives: E90 335i Join Date: Apr 2011 Location: NOVA iTrader: (7)	A few noob JB+ questions Appreciate any feedback or links to threads where any of this was already covered. #1. Last week I installed a DCI with no noticeable power increase as expected. With a JB+ later installed, roughly how much HP will be directly attributed to the DCI itself? Ive read the Burger dyno chart but dont know the tune setup they used. #2. My warranty has expired. Any issues with dealers creating problems due to boost codes? Possibly not backing up any future work they do on a "modified" car? #3. At what point would a aftermarket intercooler be needed to extend the life of the turbos. If there some boost or HP threshold. example: above 400hp or 12psi? Thanks, I know it gets tedious answering the same questions over and over again. Hopefully this helps any other noobs wondering the same. Last edited by Mpower77i; 06-01-2011 at 12:26 PM..
	Appreciate 0 Tweet Quote

06-01-2011, 04:19 PM	#4
Tuner1984 1 Stock M 76 Rep 1,650 Posts Drives: Something Slow Join Date: Jan 2010 Location: Northern Virginia iTrader: (5) Garage List 2003 E46 M3 [0.00]	You shouldn't have any issues with the dealer. No codes. If you run 100 percent make sure you setup the by pass valve. Also the JB+ is easy to take in and out. It's definitely a good bang for the buck to make additional power without spending a ton. With DCI and JB+ before I moved on to Cobb with the setting at 100 percent I hit 12 lbs. This is definitely a conservative boost level for the car. You shouldn't have any concerns. __________________ Veteran USMC/Iraqi Freedom Current: E46 M3 Retired: 2009 E90 AW M3 Retired: 2007 E90 AW 335i.
	Appreciate 0 Quote

06-02-2011, 01:23 PM	#5
my1st New Member 1 Rep 9 Posts Drives: 335i sedan Join Date: May 2011 Location: FL iTrader: (0)	Has anyone had or known someone who had any problem whatsoever or negative review with the jb+ at 50%. I am planning on getting one with the BT cable. I've searched and have not found any drawbacks (other than maximum power). Thanks
	Appreciate 0 Quote

06-02-2011, 11:33 PM	#9
my1st New Member 1 Rep 9 Posts Drives: 335i sedan Join Date: May 2011 Location: FL iTrader: (0)	Okay thanks for the replies. I'm going to start out with a JB+ and go from there.
	Appreciate 0 Quote

06-03-2011, 07:03 AM	#10
Tuner1984 1 Stock M 76 Rep 1,650 Posts Drives: Something Slow Join Date: Jan 2010 Location: Northern Virginia iTrader: (5) Garage List 2003 E46 M3 [0.00]	Good luck!!! The JB plus is a great tune, but your probably going to want more power eventually!!! __________________ Veteran USMC/Iraqi Freedom Current: E46 M3 Retired: 2009 E90 AW M3 Retired: 2007 E90 AW 335i.
	Appreciate 0 Quote

06-01-2011, 12:45 PM	#2
my1st New Member 1 Rep 9 Posts Drives: 335i sedan Join Date: May 2011 Location: FL iTrader: (0)	I have found the following to be most likely since I've been researching the same setup. 1. Maybe 5-10hp can be attributed to the DCI when you begin to increase boost pressure. (But the DCI sounds sweet so thats worth the money anyway) 2. The JB+ on stock 2.75psi setting should not produce code. I am not aware of anyone who has gotten tuner/overboost code from it. It is posted somewhere that the 2.75psi is almost exactly the amount of extra boost the car was designed for to account for increased turbocharger speeds at high altitude. I believe the numbers were .6bar (8.82psi) stock at sea level to .8bar (11.76 psi) stock at high altitude. Notice 11.76-8.82=2.94. Turbo must spin faster to create same boost at altitude. Someone please correct if this info is mistaken. 3. An aftermarket IC would benefit even an all stock motor. As boost increases it will only help more. Also DCI is probably sucking in some warmer engine bay air. Increasing boost any amount and feeding the car slightly hotter air.....If I were the car I would appreciate the intercooler. Hope this helps some.
	Appreciate 0 Quote

06-03-2011, 08:02 AM	#11
MKE_M3 Lieutenant Colonel 72 Rep 1,705 Posts Drives: 2011 e90 M3 Join Date: Feb 2009 Location: Milwaukee, WI iTrader: (0)	ditch the JB+ and get a Procede or a JB4. I did, and it is night and day how much better the Procede is! __________________
	Appreciate 0 Quote

06-03-2011, 11:47 AM	#12
zltm089 Banned 268 Rep 7,686 Posts Drives: 335i SE Coupe Space Grey Join Date: Nov 2008 Location: LONDON iTrader: (0) Garage List 2006 BMW 335i [10.00]	I've got a JB plus...no issues so far....had it on default setting...then i started craving for more power and move the dial up 2 notches....no probs so far.... very keen to hear other peolpe's experiences and if you guys have run your jb plus at 100% and for how long etc....
	Appreciate 0 Quote

06-03-2011, 04:06 PM	#14
Charleston335 First Lieutenant 17 Rep 342 Posts Drives: 2012 Msport 135i convertible Join Date: Jul 2010 Location: Charleston, SC iTrader: (1)	Solenoid bypass and its def worth doing! I have it done at 100% and it pulls nicely.
	Appreciate 0 Quote

06-03-2011, 11:53 PM	#15
Mpower77i Second Lieutenant 24 Rep 214 Posts Drives: E90 335i Join Date: Apr 2011 Location: NOVA iTrader: (7)	Id still love to know about any negative dealings with the dealer POST-warranty. Im not so much trying to be convinced that a JB+ wont throw a code at 75% to 100%. But rather, if a code IS present, will a dealer deny backing up their parts and labor? For example: the HPFP. Recently, Ive gone into limp mode AFTER the recall work has been done. I want to know that a dealer will not use a code as an excuse to not replace or fix what they're responsible for. Im basically feeling out whether someone in my shoes should spend the money on a BT scanner with a POST warranty car. Thanks guys
	Appreciate 0 Quote

06-04-2011, 12:00 AM	#16
Jeff@TopGearSolutions 3482 Rep 79,210 Posts Drives: C6 Z06, 09 335i, 10 335xi Join Date: Dec 2008 Location: www.TopGearSolutions.com iTrader: (37)	Best rule of thumb: If you have to ask if a dealer will deny a claim chances are they can if they want to. However dealer work is warrantied for a certain period of time so you would need to check with them.
	Appreciate 0 Quote