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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N57 / M57 Turbo Diesel Discussions - 335d > 335d boost gauge



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      04-06-2013, 10:21 PM   #67
Ron1n
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The car does 28psi at max boost, so a 30psi gauge makes sense. Interesting that you have to tap the charge pipe to get your #'s, though (my meth kit is tapped there, as well).
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      04-07-2013, 08:16 AM   #68
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How about that ?

https://www.google.ca/url?sa=t&source=web&cd=3&ved=0CD8QFjAC&url=http%3A %2F%2Fitunes.apple.com%2Fapp%2Fdashcommand-obd-ii-gauge-dashboards%2Fid321293183%3Fmt%3D8&rct=j&q=inside%2 0performance%20gauge&ei=8mJhUZeAMO610QGj5oHgDA&usg =AFQjCNE2MoR8z-YISkM8GNSbxNlIbVYMsw
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      04-07-2013, 07:19 PM   #69
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Your link no workie.
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      04-07-2013, 08:28 PM   #70
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Quote:
Originally Posted by Ron1n View Post
The car does 28psi at max boost, so a 30psi gauge makes sense. Interesting that you have to tap the charge pipe to get your #'s, though (my meth kit is tapped there, as well).
Hi Ron1n, what meth kit do you have ?
Do you see a big improvement over the JBD at 100% ?
I want to install a Snow Performance kit if it make really more power .
Can you make a run from 100-200 km/h (60-120 mph) and time it to compare with my car that only have a JBD at 100%.

Thanks.
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      04-07-2013, 09:33 PM   #71
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Quote:
Originally Posted by hrc630 View Post
Hi Ron1n, what meth kit do you have ?
Do you see a big improvement over the JBD at 100% ?
I want to install a Snow Performance kit if it make really more power .
Can you make a run from 100-200 km/h (60-120 mph) and time it to compare with my car that only have a JBD at 100%.

Thanks.
I too am also curious about Ron1n's current evaluation with Burger Motorsports' meth kit even though there is a separate post for meth kits that is somewhat active in the forum.
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      04-18-2013, 10:01 AM   #72
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Quote:
Originally Posted by bulldog x6
p3 gauge is $$$ but worth it IMO - looks sick
I will be attempting.
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      04-23-2013, 07:44 AM   #73
kimbersc
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Quote:
Originally Posted by hrc630 View Post
More pics

I will polish the hole on the motor cover when i have time... You dont have to do this, you can tap more on the left side of the elbow. I prefer my place because the plastic is more deep and flat.
sweet setup - nice work
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      08-26-2015, 10:19 AM   #74
directorusa
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How to control JBD???

Quote:
Originally Posted by TDIwyse View Post
Thought I had a pic of the map sensor splice, but can't find it. I got a bit of free time now so I'll go grab a pic in a few mins.

I'm using a short piece of really thin solder braid (something like this http://www.hmcelectronics.com/produc...Fc5AMgod42YAbQ) to slip inside the OEM connection, then crimping that to a wire wrapped in shrink wrap to form a weather tight seal. The wire goes to the 0-5V DC Snow adjustable controller (you set the start point and the end point and it does a linear progressive curve output to control the pump). The pump is a 250 psi Alcohol Injection Pump. The output goes through an AEM flow gauge unit and into the AEM nozzle. It's a pieced together system...

Regarding the JBD, I modified it so it's a progressive controlled unit. Made a circuit which monitors the engine rpm's, and linearly increases the JBD rail pressure distortion above ~2400 rpms. Until ~2400 rpm's the JBD is basically off, and then increases to 100% at ~4400 rpm. Did this for a few reasons:
1. Reduced stress on injectors from above stock rail pressure for the vast majority of operation (99% of the cars driving is below 2500 rpm's so no excess rail pressure in those conditions).
2. Reading how the DDE adapts injector behavior leads me to believe it will tend to adapt out the JBD's behavior if its used at high levels all the time. Having the JBD essentially off during rpm's where the DDE adapts injector behavior leads to, I believe, higher output capability when it's needed (high rpm's, high load).
3. Reduced stress on the tranny by keeping peak torque levels below the transmissions rated capacity.
Hi TDIwyse,

Could you please explain how you made a circuit for the JBD to control it with RPMs. I am very interested in this as I would like to use the JBD, but love your idea on how to control it more precisely.

I also am wanting to install an AEM meth kit to control the CBU as I have 65k miles and can already tell there is plenty of build up in there. It looks like I need to research on obtaining the walnut blasting equipment to DIY-it.

Thanks a bunch in advance.

Jarred
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      08-26-2015, 01:07 PM   #75
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+1!

I think a lot of us on this forum would like to know more about the JBD mod.
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