Juice Box 3 (JB3) worries. Long-term problems?

adhalla · 02-05-2009, 12:26 AM

just got a e92 335i and was thinking of getting the JB3. havent heard anything bad yet about it, but was wondering if you guys have heard of any long term problems or possible problems.

galahad05 · 02-05-2009, 12:35 AM

None yet. No one's car has gone 100k+ to to show long-term problems (or lack of problems), though.

Same goes for all the piggybacks. Or even the Dinan flash for that matter.

darkphantom · 02-05-2009, 12:42 AM

^what he said, but remember, you're not performing at stock levels, you're almost doubling the psi in the turbos, and you're constantly pushing the car more than you would normally....more stress = more wear....just common logic.

Turbo>NA · 02-05-2009, 12:43 AM

No one knows, but whenever turning and pushing more PSI on the engine. It cuts the life of the engine big time......

You should lease the car

vegasspeed · 02-05-2009, 12:46 AM

I would say it hurts the turbos more than the car. The engine can probably hold up to this plenty. It isn't that much boost overall. It is the fact that the small turbos can't spin much faster and beyond 15psi they are out of their eff% range. Just plan on replacing the turbos at a faster interval if you get a tune. Or swap them for something better down the road is my guess.

adhalla · 02-05-2009, 12:57 AM

Quote:

Originally Posted by vegasspeed

Just plan on replacing the turbos at a faster interval if you get a tune. Or swap them for something better down the road is my guess.

hold on. replace the turbos? the front turbo alone is $1500...
surely you mean something else

Turbo>NA · 02-05-2009, 12:58 AM

Quote:

Originally Posted by vegasspeed

I would say it hurts the turbos more than the car. The engine can probably hold up to this plenty. It isn't that much boost overall. It is the fact that the small turbos can't spin much faster and beyond 15psi they are out of their eff% range. Just plan on replacing the turbos at a faster interval if you get a tune. Or swap them for something better down the road is my guess.

swapping will add more power which means = more problems in the long run.

adhalla · 02-05-2009, 01:01 AM

also, i am installing the JB3 with a mapping switch, so most of the time i can leave the JB3 on off/valet. thoughts on this besides the obvious. anyone that knows besides conjecture?

Turbo>NA · 02-05-2009, 01:04 AM

Quote:

Originally Posted by adhalla

also, i am installing the JB3 with a mapping switch, so most of the time i can leave the JB3 on off/valet. thoughts on this besides the obvious. anyone that knows besides conjecture?

Thats obviously what you have to do, but remember you cant switch maps when your driving. So if you in "valet" mode and the e92 M3 pulls up next to you on the hwy what are you going to do?

Thats why its something you have to take into consideration

adhalla · 02-05-2009, 01:07 AM

Quote:

Originally Posted by Turbo>NA

Thats obviously what you have to do, but remember you cant switch maps when your driving. So if you in "valet" mode and the e92 M3 pulls up next to you on the hwy what are you going to do?

Thats why its something you have to take into consideration

incorrect. maps can be switched WHILE driving

.:bHd:. · 02-05-2009, 01:09 AM

Quote:

Originally Posted by adhalla

incorrect. maps can be switched WHILE driving

No they cant

Turbo>NA · 02-05-2009, 01:10 AM

Quote:

Originally Posted by adhalla

incorrect. maps can be switched WHILE driving

How? I thought with the 1.22v maps must be selected when car is off with the gas pedal?

adhalla · 02-05-2009, 01:10 AM

Quote:

Originally Posted by .:bHd:.

No they cant

had a conversation with mike from n45tuning and was told that maps can be changed on the fly.

Quote:

Originally Posted by Turbo>NA

How? I thought with the 1.22v maps must be selected when car is off with the gas pedal?

can be changed on the fly with the hard wired switch ONLY

Turbo>NA · 02-05-2009, 01:12 AM

Quote:

Originally Posted by adhalla

had a conversation with mike from n45tuning and was told that maps can be changed on the fly.

Explain? I want to know....

Unless you have an adapter connected the ECU to select maps, I don't see how it works?

adhalla · 02-05-2009, 01:21 AM

Quote:

Originally Posted by Turbo>NA

Explain? I want to know....

Unless you have an adapter connected the ECU to select maps, I don't see how it works?

here is the switch and where it goes. was told by n54tuning that maps can be changed on the fly. haven't installed it yet, or tried it, so i this is the extent of my knowledge.

galahad05 · 02-05-2009, 01:34 AM

adhalla, truly no one knows. Or if a very select few do (tore down several engines, measured wear) they aren't saying--this information would be costly to gain and might give a competitive advantage to the ones who know.

Now the turbos themselves, on the other hand...I'd be willing to bet that Mitsubishi knows full well how long their turbos would last under 12-13 PSI peak boost....

rcracer_tx · 02-05-2009, 01:34 AM

Quote:

Originally Posted by adhalla

here is the switch and where it goes. was told by n54tuning that maps can be changed on the fly. haven't installed it yet, or tried it, so i this is the extent of my knowledge.

Thats the dumbest thing I have ever heard

Your going go out of your sunroof to ghost ride on your open hood, flip the switch under the hood, then jump back in your car through the sunroof all while still moving? you should be

ed again

You can make your own switch and route it in the cabin, but it will not allow access to all of the maps...

galahad05 · 02-05-2009, 01:40 AM

Quote:

Originally Posted by vegasspeed

I would say it hurts the turbos more than the car. The engine can probably hold up to this plenty. It isn't that much boost overall. It is the fact that the small turbos can't spin much faster and beyond 15psi they are out of their eff% range. Just plan on replacing the turbos at a faster interval if you get a tune. Or swap them for something better down the road is my guess.

+1. Very strong block with a surprisingly beefy bottom end, which should be able to take HUGE power for a lifetime--as long as you don't have lots of detonation under high boost.
This will destroy any engine right quick.

SC335 · 02-05-2009, 01:58 AM

Quote:

Originally Posted by adhalla

also, i am installing the JB3 with a mapping switch, so most of the time i can leave the JB3 on off/valet. thoughts on this besides the obvious. anyone that knows besides conjecture?

Good luck with this intial thought.... Once you have more power.... it's addictive. Yes you can drive at normal speeds etc.... but you will only be reserved for so long from people pulling next to you and wanting to play. TRUST ME.

I'm sure everyone on here can attest to this.

adhalla · 02-05-2009, 10:47 AM

Quote:

Originally Posted by rcracer_tx

Thats the dumbest thing I have ever heard

Your going go out of your sunroof to ghost ride on your open hood, flip the switch under the hood, then jump back in your car through the sunroof all while still moving? you should be

ed again

You can make your own switch and route it in the cabin, but it will not allow access to all of the maps...

switch will be routed into the cabin. thought this went without saying, but apparently not.

switch has 3 setting, one is valet/off, one is what the pedal is set to, and the other is one of the other maps.

mid-corner fun · 02-05-2009, 10:56 AM

Quote:

Originally Posted by SC335

Good luck with this intial thought.... Once you have more power.... it's addictive. Yes you can drive at normal speeds etc.... but you will only be reserved for so long from people pulling next to you and wanting to play. TRUST ME.

I'm sure everyone on here can attest to this.

+1. The only question will be map 4 or map6...not valet mode.

cu_north · 02-05-2009, 11:04 AM

Quote:

Originally Posted by adhalla

switch will be routed into the cabin. thought this went without saying, but apparently not.

switch has 3 setting, one is valet/off, one is what the pedal is set to, and the other is one of the other maps.

+1 I think Terry even offered a DIY write up on how to extend the hard wire map switch. I really thought people knew more about that feature

02-05-2009, 12:26 AM	#1
adhalla Second Lieutenant 29 Rep 282 Posts Drives: 2012 BMW 650i M Sport F13 Join Date: Feb 2009 Location: Las Vegas, NV iTrader: (8)	Juice Box 3 (JB3) worries. Long-term problems? just got a e92 335i and was thinking of getting the JB3. havent heard anything bad yet about it, but was wondering if you guys have heard of any long term problems or possible problems.
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02-05-2009, 12:35 AM	#2
galahad05 Brigadier General 158 Rep 3,158 Posts Drives: '07 335i e90 Join Date: Mar 2008 Location: Long Island NY iTrader: (0)	None yet. No one's car has gone 100k+ to to show long-term problems (or lack of problems), though. Same goes for all the piggybacks. Or even the Dinan flash for that matter. __________________ Always do right. This will gratify some people and astonish the rest. --Mark Twain
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02-05-2009, 12:42 AM	#3
darkphantom Banned 595 Rep 5,946 Posts Drives: E93 335i Join Date: Aug 2007 Location: The place for Bimmers iTrader: (4)	^what he said, but remember, you're not performing at stock levels, you're almost doubling the psi in the turbos, and you're constantly pushing the car more than you would normally....more stress = more wear....just common logic.
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02-05-2009, 12:43 AM	#4
Turbo>NA xbox gamertag: HuGeBluEmOnKeY 257 Rep 3,758 Posts Drives: M-Sport LCI Join Date: Aug 2008 Location: SoCal (626) iTrader: (2)	No one knows, but whenever turning and pushing more PSI on the engine. It cuts the life of the engine big time...... You should lease the car __________________ E92 335i alpine white \| black dokota \| auto \| zpp \| zsp \| heated \| iPod - ltbmw : vorsteiner : linea corsa : h&r : k&n : e92-lighting : expectalot-vinyl - --GONE--
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02-05-2009, 12:46 AM	#5
vegasspeed Captain 80 Rep 761 Posts Drives: 335i 6MT coupe Montego Blue Join Date: Apr 2008 Location: Las Vegas iTrader: (1)	I would say it hurts the turbos more than the car. The engine can probably hold up to this plenty. It isn't that much boost overall. It is the fact that the small turbos can't spin much faster and beyond 15psi they are out of their eff% range. Just plan on replacing the turbos at a faster interval if you get a tune. Or swap them for something better down the road is my guess. __________________ 335i coupe Montego Blue Dinan stage 3 tune, Advan RS wheels 350whp/365wtq 1994 Brooklands Green Acura NSX Comptech Supercharged 390whp/300wtq
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02-05-2009, 01:01 AM	#8
adhalla Second Lieutenant 29 Rep 282 Posts Drives: 2012 BMW 650i M Sport F13 Join Date: Feb 2009 Location: Las Vegas, NV iTrader: (8)	also, i am installing the JB3 with a mapping switch, so most of the time i can leave the JB3 on off/valet. thoughts on this besides the obvious. anyone that knows besides conjecture?
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02-05-2009, 01:34 AM	#16
galahad05 Brigadier General 158 Rep 3,158 Posts Drives: '07 335i e90 Join Date: Mar 2008 Location: Long Island NY iTrader: (0)	adhalla, truly no one knows. Or if a very select few do (tore down several engines, measured wear) they aren't saying--this information would be costly to gain and might give a competitive advantage to the ones who know. Now the turbos themselves, on the other hand...I'd be willing to bet that Mitsubishi knows full well how long their turbos would last under 12-13 PSI peak boost.... __________________ Always do right. This will gratify some people and astonish the rest. --Mark Twain
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