JB+ 75% review - BMW 3-Series (E90 E92) Forum

TiAg335i · 04-10-2009, 06:19 PM

I was running JB+ at default setting for a while, decided to up it to 75% today...

Changing the boost is quite simple with the JB+, although it didn't occur to me at first that you had to adjust the little arrow, and not the entire blue dial. I was turning the blue dial like an idiot without it budging, not knowing you needed a small flathead screwdriver to adjust it.

Well, anyway, the car is scary fast now...there is a VERY noticeable difference from the default setting and 75% boost. The car just pulls like a madman...almost too quick for its own good sometimes.

Just one question though, whenever I am getting on it pretty hard, I hear this deep throaty "pop" from my exhaust. It almost sounds like a burp....I never noticed this before but of course I never really floored it before like this either. I should also note that this is NOT the gurgle you hear from letting off the gas (I am actively pressing the gas pedal and I hear it). Is this of concern>? BTW, I have the vacuum line for the butterfly valves unplugged (also known as golf-tee mod).

RambleJ · 04-10-2009, 06:49 PM

Quote:

Originally Posted by TiAg335i

I was running JB+ at default setting for a while, decided to up it to 75% today...

Changing the boost is quite simple with the JB+, although it didn't occur to me at first that you had to adjust the little arrow, and not the entire blue dial. I was turning the blue dial like an idiot without it budging, not knowing you needed a small flathead screwdriver to adjust it.

LOL! Glad to see im not the only person who did that!

BoostedCosta · 04-10-2009, 06:52 PM

just put that thing at 100% already lol

TiAg335i · 04-10-2009, 07:05 PM

Anybody have any opinions on the burping exhaust sound?

cincy335i · 04-10-2009, 07:21 PM

Turned mine up to 100% with the solenoid bypass. Have the UUC/Corsa Exhaust and when decelerating at certain points I can hear some popping noise from the exhaust, I don't think it is anything to worry about. Car is going on DynoJet again tomorrow so I will have some #'s to share soon.

Diggy Diggy · 04-10-2009, 07:56 PM

Is the 75% setting the "3'oclock" position?

ragingclue · 04-10-2009, 08:02 PM

Quote:

Originally Posted by TiAg335i

Anybody have any opinions on the burping exhaust sound?

If you're referring to what happens on the overrun, there's nothing to worry about there. That sound is tits, and won't hurt shit.

If that's not what you're referring to, I apologize for assuming it was.

C63_BJ · 04-10-2009, 08:14 PM

Quote:

Originally Posted by TiAg335i

I was running JB+ at default setting for a while, decided to up it to 75% today...

Changing the boost is quite simple with the JB+, although it didn't occur to me at first that you had to adjust the little arrow, and not the entire blue dial. I was turning the blue dial like an idiot without it budging, not knowing you needed a small flathead screwdriver to adjust it.

Well, anyway, the car is scary fast now...there is a VERY noticeable difference from the default setting and 75% boost. The car just pulls like a madman...almost too quick for its own good sometimes.

Just one question though, whenever I am getting on it pretty hard, I hear this deep throaty "pop" from my exhaust. It almost sounds like a burp....I never noticed this before but of course I never really floored it before like this either. I should also note that this is NOT the gurgle you hear from letting off the gas (I am actively pressing the gas pedal and I hear it). Is this of concern>? BTW, I have the vacuum line for the butterfly valves unplugged (also known as golf-tee mod).

EDit

Fone Phreak · 04-10-2009, 09:13 PM

been at 100% for about a week or so. scary fast?? mmm.. lets just say its way more fun to drive! probably gonna put the JB+ on the 135 and invest in a JB3 or Proceede.

TiAg335i · 04-10-2009, 09:21 PM

Quote:

Originally Posted by ragingclue

If you're referring to what happens on the overrun, there's nothing to worry about there. That sound is tits, and won't hurt shit.

If that's not what you're referring to, I apologize for assuming it was.

On the overrun? What is that?

This is NOT the sound you hear when you let off the gas in say, a parking garage, and hear the crackling/gurgling noise.

When I hit the gas hard I hear the exhaust "burp", it's pretty weird.

Curt2000 · 04-10-2009, 10:06 PM

You mean to tell me there are people out there that run JB+ on less than 100%?

TiAg335i · 04-10-2009, 10:17 PM

Quote:

Originally Posted by Curt2000

You mean to tell me there are people out there that run JB+ on less than 100%?

Considering the potential for codes, yes.

Curt2000 · 04-10-2009, 10:27 PM

3 questions about the JB+

Will it throw a code if you have a early 07 build with old software that has never been updated?

Hard ECU Reset?

Can a scanning tool not clear the code?

TiAg335i · 04-10-2009, 11:06 PM

Quote:

Originally Posted by Curt2000

3 questions about the JB+

Will it throw a code if you have a early 07 build with old software that has never been updated?

Hard ECU Reset?

Can a scanning tool not clear the code?

Early 07 build with the early software will most likely not throw codes. Keep in mind there is no way to guarantee any of this, and your best bet is to buy the BT tool. The BT tool will clear any code.

TwinTurboXI · 04-11-2009, 07:45 AM

Quote:

Originally Posted by cincy335i

Turned mine up to 100% with the solenoid bypass. Have the UUC/Corsa Exhaust and when decelerating at certain points I can hear some popping noise from the exhaust, I don't think it is anything to worry about. Car is going on DynoJet again tomorrow so I will have some #'s to share soon.

Do i need to do the bypass to safley turn the jb+ to 100%?

Patrys@BimmerTech · 04-11-2009, 08:10 AM

Quote:

Originally Posted by TwinTurboXI

Do i need to do the bypass to safley turn the jb+ to 100%?

That's what Terry suggests as well as the high octane fuel.

cincy335i · 04-11-2009, 09:38 AM

As far as turning up to 100% and doing the solenoid bypass, the answer to whether it is necessary is no, or that is what I was told. It just helps to increase low end torque as I think the ECU piggys' (V3 and JB3) both electronically bypass the solenoid? This is just a simple, free way to do it, the manual way. Not a necessary mod, but it is working out for me so far. Thanks.

TwinTurboXI · 04-11-2009, 11:09 AM

Quote:

Originally Posted by cincy335i

As far as turning up to 100% and doing the solenoid bypass, the answer to whether it is necessary is no, or that is what I was told. It just helps to increase low end torque as I think the ECU piggys' (V3 and JB3) both electronically bypass the solenoid? This is just a simple, free way to do it, the manual way. Not a necessary mod, but it is working out for me so far. Thanks.

Thanks Cincy, have you invested in a bt scan tool yet?

TiAg335i · 04-11-2009, 11:55 AM

Can someone confirm that the sound I am hearing is normal?

TwinTurboXI · 04-11-2009, 12:40 PM

I have never heard a "pop" from my car. However, when letting off the gas pedal i do get a burble or small backfire, but thats been there since day 1

TiAg335i · 04-11-2009, 02:05 PM

Quote:

Originally Posted by TwinTurboXI

I have never heard a "pop" from my car. However, when letting off the gas pedal i do get a burble or small backfire, but thats been there since day 1

it's not a pop, it's more of a burp or gurgle when I get on it hard, NOT letting off the gas.

mJ335 · 04-11-2009, 07:23 PM

I heard it too. Sounds like a small backfire. Mine was at 100% ever since day 1 (I think.. turning the dial clockwise to "Max".. right?).

04-10-2009, 06:19 PM	#1
TiAg335i Trance Life Drives: 2007 E92 335i Join Date: Jan 2007 Location: Long Island, NY Posts: 4,712 iTrader: (4)	JB+ 75% review I was running JB+ at default setting for a while, decided to up it to 75% today... Changing the boost is quite simple with the JB+, although it didn't occur to me at first that you had to adjust the little arrow, and not the entire blue dial. I was turning the blue dial like an idiot without it budging, not knowing you needed a small flathead screwdriver to adjust it. Well, anyway, the car is scary fast now...there is a VERY noticeable difference from the default setting and 75% boost. The car just pulls like a madman...almost too quick for its own good sometimes. Just one question though, whenever I am getting on it pretty hard, I hear this deep throaty "pop" from my exhaust. It almost sounds like a burp....I never noticed this before but of course I never really floored it before like this either. I should also note that this is NOT the gurgle you hear from letting off the gas (I am actively pressing the gas pedal and I hear it). Is this of concern>? BTW, I have the vacuum line for the butterfly valves unplugged (also known as golf-tee mod).
	Tweet

04-10-2009, 06:52 PM	#3
BoostedCosta SUPERMAN Drives: AW e90 335i M-Sport Join Date: Jul 2008 Location: nj Posts: 3,174 iTrader: (6)	just put that thing at 100% already lol __________________ MODS: JB3 18ohm \| AR Design Catlles Downpipes \| CDV Delete \| Clutch Masters FX400 \| ZEX Nitrous Kit \| Devils Own Methonal Kit \| VMR V701 (Matte Black) \| H&r Race Springs\| BMW Perf Grilles\|

04-10-2009, 10:06 PM	#11
Curt2000 Lieutenant Colonel Drives: '09 135i Join Date: Jun 2007 Location: Sin City Posts: 1,560 iTrader: (19)	You mean to tell me there are people out there that run JB+ on less than 100%? __________________ Euro Delivery Thread: '13 SANTORINI BLUE E92 ///M3--6MT/Speed Cloth/ZCP Current Car: '10 AW E90 335i MSport Former Cars: '07 Interlagos ///M5 / '09 135i / '10 E93 335i / '07 E90 335i

04-10-2009, 10:27 PM	#13
Curt2000 Lieutenant Colonel Drives: '09 135i Join Date: Jun 2007 Location: Sin City Posts: 1,560 iTrader: (19)	3 questions about the JB+ Will it throw a code if you have a early 07 build with old software that has never been updated? Hard ECU Reset? Can a scanning tool not clear the code? __________________ Euro Delivery Thread: '13 SANTORINI BLUE E92 ///M3--6MT/Speed Cloth/ZCP Current Car: '10 AW E90 335i MSport Former Cars: '07 Interlagos ///M5 / '09 135i / '10 E93 335i / '07 E90 335i

04-11-2009, 07:23 PM	#22
mJ335 Amateur Post Whore Drives: 07 E90 SparkLiN G. 335i Join Date: Sep 2007 Location: SocaL Posts: 3,034 iTrader: (17) Garage List 2007 e90 335i [0.00]	I heard it too. Sounds like a small backfire. Mine was at 100% ever since day 1 (I think.. turning the dial clockwise to "Max".. right?). __________________ Go WiTh ThE FLoW. \|BL\|RS\|PIAA\|CFE\|CFMC\|SSM\|CFG\|CFDP\|ABG\|M6\|AFE\|MTECH \|RPI\|JB+\|CSLT\|KWSC\|

04-10-2009, 07:05 PM	#4
TiAg335i Trance Life Drives: 2007 E92 335i Join Date: Jan 2007 Location: Long Island, NY Posts: 4,712 iTrader: (4)	Anybody have any opinions on the burping exhaust sound?

04-10-2009, 07:21 PM	#5
cincy335i Lieutenant Drives: '08 Black Saph 335i coupe 6mt Join Date: Mar 2009 Location: Cincinnati, Ohio Posts: 419 iTrader: (0)	Turned mine up to 100% with the solenoid bypass. Have the UUC/Corsa Exhaust and when decelerating at certain points I can hear some popping noise from the exhaust, I don't think it is anything to worry about. Car is going on DynoJet again tomorrow so I will have some #'s to share soon.

04-10-2009, 07:56 PM	#6
Diggy Diggy First Lieutenant Drives: 135i Join Date: Mar 2009 Location: Kentucky Posts: 333 iTrader: (2) Garage List 2008 BMW 135i [0.00]	Is the 75% setting the "3'oclock" position?

04-10-2009, 09:13 PM	#9
Fone Phreak Private First Class Drives: 2010 135i Join Date: Jan 2009 Location: MIAMI, NYC Posts: 105 iTrader: (1)	been at 100% for about a week or so. scary fast?? mmm.. lets just say its way more fun to drive! probably gonna put the JB+ on the 135 and invest in a JB3 or Proceede.

04-11-2009, 09:38 AM	#17
cincy335i Lieutenant Drives: '08 Black Saph 335i coupe 6mt Join Date: Mar 2009 Location: Cincinnati, Ohio Posts: 419 iTrader: (0)	As far as turning up to 100% and doing the solenoid bypass, the answer to whether it is necessary is no, or that is what I was told. It just helps to increase low end torque as I think the ECU piggys' (V3 and JB3) both electronically bypass the solenoid? This is just a simple, free way to do it, the manual way. Not a necessary mod, but it is working out for me so far. Thanks.

04-11-2009, 11:55 AM	#19
TiAg335i Trance Life Drives: 2007 E92 335i Join Date: Jan 2007 Location: Long Island, NY Posts: 4,712 iTrader: (4)	Can someone confirm that the sound I am hearing is normal?

04-11-2009, 12:40 PM	#20
TwinTurboXI Major Drives: 2008 335xi 6mt Join Date: Mar 2008 Location: Pittsburgh Posts: 1,353 iTrader: (8)	I have never heard a "pop" from my car. However, when letting off the gas pedal i do get a burble or small backfire, but thats been there since day 1

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search