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Demigod
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Posts: 1,504
Join Date: Mar 2012
Location: Illinois
Car: 2007 335i
Tuner: JB4 G5
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08-11-2012, 11:52 AM
Quote:
Originally Posted by Vroom
From mid 120's to 90's w/ 15 ohms. Hi 40's low 50's w/ G5.
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How do you like your G5 so far?
JB4 G5 ISO+BMS flash,Walbro 455 LPFP, DO meth kit 4-AN SS lines, BMS OCC, RB turbos W/3.5 N20 sensor, RB valve, BMS DCI, 3" AR kittyless Dps, Strett 2 oil OC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 Strut Brace, M3 front sway-bar, Meyle HD tie-rods, HPA rear toe arms, Wavetrac LSD, DEFIV differential kit, BC Coil-overs, Power-Flex subframe bushings, stoptech slotted rotors, Rogue Tranny Mounts, Concept 1 CS-5.0 rims,
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Demigod
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Posts: 1,651
Join Date: Oct 2009
Location: Chicagoland
Car: 335i 318ti
Tuner: JB4
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08-11-2012, 12:13 PM
So far I like it. Holding boost. Disconnected the CPS wires and the idle spikes stopped and the ghost that was turning DTC on and off just left the car. 
Planned on drag racing next weeon Tuesday but traveling for work is messing things up.  |
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Demigod
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Posts: 1,504
Join Date: Mar 2012
Location: Illinois
Car: 2007 335i
Tuner: JB4 G5
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08-11-2012, 12:15 PM
Quote:
Originally Posted by Vroom
So far I like it. Holding boost. Disconnected the CPS wires and the idle spikes stopped and the ghost that was turning DTC on and off just left the car.
Planned on drag racing next weeon Tuesday but traveling for work is messing things up. |
Awesome! Sucks about traveling.
JB4 G5 ISO+BMS flash,Walbro 455 LPFP, DO meth kit 4-AN SS lines, BMS OCC, RB turbos W/3.5 N20 sensor, RB valve, BMS DCI, 3" AR kittyless Dps, Strett 2 oil OC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 Strut Brace, M3 front sway-bar, Meyle HD tie-rods, HPA rear toe arms, Wavetrac LSD, DEFIV differential kit, BC Coil-overs, Power-Flex subframe bushings, stoptech slotted rotors, Rogue Tranny Mounts, Concept 1 CS-5.0 rims,
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Demigod
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Posts: 1,651
Join Date: Oct 2009
Location: Chicagoland
Car: 335i 318ti
Tuner: JB4
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08-11-2012, 12:35 PM
How's G5 working for you?
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Demigod
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Posts: 1,504
Join Date: Mar 2012
Location: Illinois
Car: 2007 335i
Tuner: JB4 G5
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08-11-2012, 12:40 PM
Quote:
Originally Posted by Vroom
How's G5 working for you?
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Perfectly...hitting almost 19 psi then down to 15 at redline and right back up!
JB4 G5 ISO+BMS flash,Walbro 455 LPFP, DO meth kit 4-AN SS lines, BMS OCC, RB turbos W/3.5 N20 sensor, RB valve, BMS DCI, 3" AR kittyless Dps, Strett 2 oil OC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 Strut Brace, M3 front sway-bar, Meyle HD tie-rods, HPA rear toe arms, Wavetrac LSD, DEFIV differential kit, BC Coil-overs, Power-Flex subframe bushings, stoptech slotted rotors, Rogue Tranny Mounts, Concept 1 CS-5.0 rims,
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Junior Member
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Posts: 41
Join Date: Jul 2012
Location: Miami
Car: 2007 335i E92
Tuner: JB4
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09-05-2012, 06:58 AM
Quote:
Originally Posted by joshwalker
I just opened my JB4 to do this mod and it already has 5w 15ohm resistors? I bought the JB4 a week or so ago, the new ones already come with the upgrade?
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Yes they do.
Quote:
G4 board guys who just want a little more boost:
With the G4 board we've been finding more and more customers want to run higher boost levels and thus require the 15 ohm mod. And due to the size of the resistors, etc, many are botching the DIY process. For those of you who are riding the PWM limiter, under targeting, and want more boost, that purchased the JB4 new from BMS or an authorized reseller we'll start a free 15 ohm upgrade program. Generally people who ordered after 7/1/2012 already have a 15ohm. If you have an older JB4 and want to upgrade the program will work as follows:
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http://www.n54tech.com/forums/showthread.php?t=15904
Now, I ordered mine on the same date 7/1/12, is there any way to check if I have the 15ohmz installed other than taking it appart?  my boost goes up to 17.4 psi if that means anything..
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New Member
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Posts: 6
Join Date: Sep 2012
Location: Savannah
Car: 335i 6MT
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09-22-2012, 07:16 AM
Is there another place to get these resistors? Digikey says they are on a 2 month back order.
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Minor Diety
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Posts: 2,152
Join Date: Nov 2008
Location: Phoenix, AZ
Car: 2009 335i AT
Tuner: JB
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09-22-2012, 09:07 AM
Quote:
Originally Posted by Bigboosting
Is there another place to get these resistors? Digikey says they are on a 2 month back order.
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Fry's have them or any electronics supply house..... look in your yellow pages.
09 335i Coupe
JB4-G5 Iso, Pre & Post Turbo Meth,
DCI, FMIC, BMS AccessPORT, Alpina Flash
Sold 08 335i Sedan
12.035 at 118.14 1.92 60 foot
JB4, Meth, FMIC, Mr5 CAI
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