335d: DTUK CRD-T Vs. JBD box?

It seems the DTUK-T is a better option as it is a two channel system controlling fuel throughput as well as turbo boost. DTUK is manufactured by DTE in germany which has years of diesel tuning experience for multiple auto manufacturers. JBD only controls fuel, does not control turbo boost, and JBD makes only one module for this one engine.

I could be wrong, please enlighten me. I have been considering buying both myself.

This is a tune I've been using for some time now, and it's my tune of choice at this point, fwiw.

Stug, which version are you using? They show 3 with the top one controlling both CRD and Boost. They offer 4 different mappings for this version, so which do you choose? How do you order and take delivery stateside?

Curious minds want to know!

Originally Posted by Stugots

This is a tune I've been using for some time now, and it's my tune of choice at this point, fwiw.

Why?

Originally Posted by Flyingman

Stug, which version are you using? They show 3 with the top one controlling both CRD and Boost. They offer 4 different mappings for this version, so which do you choose? How do you order and take delivery stateside?

Curious minds want to know!

Indeed we do.

http://www.diesel-performance.co.uk/...ails.php?id=10

And technically, there are 28 maps (each of the 4 maps has 7 different settings).

Regarding ordering, just talk to Andrew/work through the site, and they'll get you taken care of. Tell Andrew that Ronin sent you if you happen to pick one up.

Originally Posted by Ligament

It seems the DTUK-T is a better option as it is a two channel system controlling fuel throughput as well as turbo boost. DTUK is manufactured by DTE in germany which has years of diesel tuning experience for multiple auto manufacturers. JBD only controls fuel, does not control turbo boost, and JBD makes only one module for this one engine.

I could be wrong, please enlighten me. I have been considering buying both myself.

Controls turbo boost? What is this box connected to when installed? I want to see a picture of the installed box.

Originally Posted by cssnms

Controls turbo boost? What is this box connected to when installed? I want to see a picture of the installed box.

Found this on their site which seems to answer the question.

"Unlike our other common rail modules, GREEN, RED, CRD2, that only connect to the common rail pressure sensor, the new CRD-T also connects to the turbo pressure sensor, allowing us to control and increase the boost settings. This results in an even smoother power delivery, and even lower emissions and even more power and torque."

My question is where is the turbo pressure sensor connection exactly?

Originally Posted by cssnms

Found this on their site which seems to answer the question.

"Unlike our other common rail modules, GREEN, RED, CRD2, that only connect to the common rail pressure sensor, the new CRD-T also connects to the turbo pressure sensor, allowing us to control and increase the boost settings. This results in an even smoother power delivery, and even lower emissions and even more power and torque."

My question is where is the turbo pressure sensor connection exactly?

If you're facing the engine from the front of the car, it's at the front of the engine bay (by the firewall), pretty much in line south of where the last cowl screw is.

Originally Posted by cssnms

Why?

It's the only piggyback tune that hooks into the boost sensor, as well, it has 28 maps to choose from (in this respect, DTUK > JBD > VAC), and it feels more powerful than the 3 I have (and yes, I've done back to back to back comparisons).

My next goal, when I can actually find some time, is to dyno the car with each of the 3 modules, and then I'll have hard data to support what the butt dyno is telling me.

I have nowhere near the experience with other tune boxes as Ronin, however after three weeks or so I am very happy with my DTUK CRD-T tuning box. I have spoken at length with the DTUK GM Andrew, and am pleased with customer care and support. My 2011 335d is doing great.

Subjectively, of course, it appears turbo lag is 90% reduced. Power output feels about 30% better across all RPMs. I have not dyno'd it yet so take my claims with a few grains of salt.

Originally Posted by Ligament

I have nowhere near the experience with other tune boxes as Ronin, however after three weeks or so I am very happy with my DTUK CRD-T tuning box. I have spoken at length with the DTUK GM Andrew, and am pleased with customer care and support. My 2011 335d is doing great.

Subjectively, of course, it appears turbo lag is 90% reduced. Power output feels about 30% better across all RPMs. I have not dyno'd it yet so take my claims with a few grains of salt.

And some Tequila!

It sounds fantastic, too good to be true?

It certainly makes sense to control both fuel delivery and charge air pressure.

They mention a new model with 3 channels, or am I getting confused already?

Originally Posted by Ligament

I have nowhere near the experience with other tune boxes as Ronin, however after three weeks or so I am very happy with my DTUK CRD-T tuning box. I have spoken at length with the DTUK GM Andrew, and am pleased with customer care and support. My 2011 335d is doing great.

Subjectively, of course, it appears turbo lag is 90% reduced. Power output feels about 30% better across all RPMs. I have not dyno'd it yet so take my claims with a few grains of salt.

Ligament, how do you boost your NADA?

Post your ride already.

Originally Posted by Ligament

I have nowhere near the experience with other tune boxes as Ronin, however after three weeks or so I am very happy with my DTUK CRD-T tuning box. I have spoken at length with the DTUK GM Andrew, and am pleased with customer care and support. My 2011 335d is doing great.

Subjectively, of course, it appears turbo lag is 90% reduced. Power output feels about 30% better across all RPMs. I have not dyno'd it yet so take my claims with a few grains of salt.

A few questions guys:
1. How is the turbo lag reduction on the dtuk compare to the jbd?
2. How easy is the dtuk to install compared to the jbd?
3. Are you able to clear the tuner codes when they are triggered by the dtuk unit?
4. When you say power output feels about 30% better is that compared to the jbd (at which setting on jbd) or stock?


Thanks.

Originally Posted by Stugots

My next goal, when I can actually find some time, is to dyno the car with each of the 3 modules,

At what setting on the DTUK and JBD are you comparing against?

Was the 365hp using a guestimated parasitic loss to get back to crank hp? Surely that wasn't at the wheel???

If so I need one of these ASAP

Jay

Update:

1) pbmw60 give you GBP £60 off of a crd-t
2) new review in current performance bmw mag

So which setting seems to not pull any codes or limp mode? I assume it is kind of like the JDB where if you dot get too greedy with the settings then fear of codes/limp should be nonexistent.

To all here. I have the RENNtech flash and I went LIMP Mode when I dynoed the car , hence I had NOT completely turned OFF the DSC, but I have YET to go limp mode while driving i have had as quoted by STUGOTs Or Ronin I believe the following quote:

[COLOR="Blue"]"Codes that can pop up (and will, generally, with a tune) when this happens fall along the lines of Rail Pressure Plausiblity, but I've also seen Air Mass Sensor and Gas Pressure Sensor. "[/COLOR]

The first one was because I had the clamp to the mass flow sensor lose! after that I did not go SES until a month later and before I did the code erase it turned off by itself. I spoke to my mechanic and he stated that whenever you have tunes sometimes some codes will come up but usually not serious, but he did advise me never to ignore whenever the light comes up.

Originally Posted by cssnms

365hp?! What kind of dyno was that done on and did you get a baseline to measure actual gains? Did you test the JBD on the same dyno, if so what were the results and what setting?

The JBD dyno that you seen on BMS' site is my car. I was the original tester for the JBD. Same shop did my car with DTUK. Baseline for my car was 245bhp. JBD yielded 308bhp, DTUK Program 3 Map 7 yielded the 365HP.

Originally Posted by cssnms

At what setting on the DTUK and JBD are you comparing against?

JBD at 100% and DTUK @ Program 3 Map 7.

Originally Posted by Axel61

To all here. I have the RENNtech flash and I went LIMP Mode when I dynoed the car , hence I had NOT completely turned OFF the DSC, but I have YET to go limp mode while driving i have had as quoted by STUGOTs Or Ronin I believe the following quote:

[COLOR="Blue"]"Codes that can pop up (and will, generally, with a tune) when this happens fall along the lines of Rail Pressure Plausiblity, but I've also seen Air Mass Sensor and Gas Pressure Sensor. "[/COLOR]

The first one was because I had the clamp to the mass flow sensor lose! after that I did not go SES until a month later and before I did the code erase it turned off by itself. I spoke to my mechanic and he stated that whenever you have tunes sometimes some codes will come up but usually not serious, but he did advise me never to ignore whenever the light comes up.

Limp can come about for various reasons, especially under duress on a dyno (heatsoak, for example). Your RENNtech isn't adjustable....it's one map, whereas JBD at DTUK have multiple options, so while your experiences with the tune are informative and appreciated, it's an apples to oranges comparison.

Originally Posted by Stugots

The JBD dyno that you seen on BMS' site is my car. I was the original tester for the JBD. Same shop did my car with DTUK. Baseline for my car was 245bhp. JBD yielded 308bhp, DTUK Program 3 Map 7 yielded the 365HP.



JBD at 100% and DTUK @ Program 3 Map 7.

That is a pretty impressive gain. I've seen one skewed result for the JBD which I witnessed first hand where the car had put out 330hp at the wheels. Not sure if it was the equipment or the fact that his car had been sitting for 4 hours so it was bone cold, had a cone filter and it was tested with the hood open so sucking in lots of cold air.

Curious, were the conditions the same between the two tests (JBD v DTUK), ie. temps, humidity, engine temp, hood open/closed in both cases? I remember you saying something about your car was heat soaked when you when to test the JBD, not sure if the DTUK was part of that same test.

Also any limp modes or SES lights at Program 3 Map 7? How many miles have you driven it at this setting?

Originally Posted by Stugots

The JBD dyno that you seen on BMS' site is my car. I was the original tester for the JBD. Same shop did my car with DTUK. Baseline for my car was 245bhp. JBD yielded 308bhp, DTUK Program 3 Map 7 yielded the 365HP.

Hi Ronin!

Long time no talk. For the JBD we used the dynojet at specialtyZ. You can not compare results from that dyno to another, especially a non-dynojet, as they will vary greatly. If you'd like to get together again at specialtyZ I'd be happy to pay for a dyno comparison of the systems. The JBD is a quick install easy to use type product so we've never been going for the most power with it. But if there really is something else out there making 30hp+ more (which I doubt) even if the install is more involved I would be very happy build a better mouse trap for you more serious guys. We're also working on a D meth kit currently.

Originally Posted by Terry @ BMS

Hi Ronin!

Long time no talk. For the JBD we used the dynojet at specialtyZ. You can not compare results from that dyno to another, especially a non-dynojet, as they will vary greatly. If you'd like to get together again at specialtyZ I'd be happy to pay for a dyno comparison of the systems. The JBD is a quick install easy to use type product so we've never been going for the most power with it. But if there really is something else out there making 30hp+ more (which I doubt) even if the install is more involved I would be very happy build a better mouse trap for you more serious guys. We're also working on a D meth kit currently.

Agreed.

Also the dyno results for the DTUK was performed at a setting that sounds virtually unusable since it puts the car into limp mode more often than not.

Originally Posted by Terry @ BMS

Hi Ronin!

Long time no talk. For the JBD we used the dynojet at specialtyZ. You can not compare results from that dyno to another, especially a non-dynojet, as they will vary greatly. If you'd like to get together again at specialtyZ I'd be happy to pay for a dyno comparison of the systems. The JBD is a quick install easy to use type product so we've never been going for the most power with it. But if there really is something else out there making 30hp+ more (which I doubt) even if the install is more involved I would be very happy build a better mouse trap for you more serious guys. We're also working on a D meth kit currently.

Terry,

You know me...I'm always open to suggestions and options. No need for you to pay for the dyno...I'd be happy to throw up the car and the tunes for comparison. I still love the JBD, fwiw, and I still consider myself a very happy owner.

When it comes to the Meth kit, make sure to remember me when it comes time to test it. I have no problems driving up there and getting things set up.

Originally Posted by Stugots

Terry,

You know me...I'm always open to suggestions and options. No need for you to pay for the dyno...I'd be happy to throw up the car and the tunes for comparison. I still love the JBD, fwiw, and I still consider myself a very happy owner.

When it comes to the Meth kit, make sure to remember me when it comes time to test it. I have no problems driving up there and getting things set up.

Sounds good! FWIW I'm not trying to come down negative on the DTUK I'm sure it's great too. Just want to make sure people who have not tried either are evaluating them on their merits as much as possible. I'll let you know when the meth kit is ready. To be candid it's been bumped a few times on the priority list for various projects like the N55 OCC, N55 intake, N20 tuning, C250 intake, etc, but it will get done sooner or later.

does anyone make a bigger intercooler yet? seems like that would be easy and make decent gains.

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