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

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.

Originally Posted by Stugots

1. Turbo lag reduction is about the same in 1st and 2nd, but the DTUK seems to pull stronger throughout the range overall. There is still a hint of lag on WOT from a dead stop, though, and that is consistent across all of the piggybacks I've tried.
2. Because of where the boost sensor is, it really isn't all that difficult. You just have to thread the second part of the cable so that it's not restricting anything end not in the way of moving parts.
3. Never had a problem clearing codes with my BT
4. He's comparing to stock. The difference between JBD and this probably isn't that dramatic, but without solid #'s, that's a hard question to answer otherwise.





Yes, but you can shut off the engine while driving and start the car back up (press and hold your Start/Stop Engine button for about 3 seconds to shut off the car, then press it again to start the car again...limp mode gone, but if an SES is triggered, that will remain).

I don't think any code tools reset on the fly (could ask Mike at N54 about whether or not the Can Tool does).

Excellent. Thanks for the info. Any pictures of the best install location? Kind of like there is for placing the jbd.

Stugout, they also offer a 3-Channel which includes the shaft pick up for rpm.

Did you consider that one?

Andrew at DTUK has been pretty good at responding but always leaves me asking more questions.

I think he's baiting me!

Originally Posted by jashearer

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

Actual dyno. Still trying to find the damn file from the run.

Originally Posted by Snipe656

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.

The 0% setting on any one of the 4 maps is pretty much guaranteed to not trigger limp. I've never stayed at the 0% setting for long, because there's a marked difference between 0%, 10%, 20%, and 30%.

Originally Posted by Flyingman

Stugout, they also offer a 3-Channel which includes the shaft pick up for rpm.

Did you consider that one?

Andrew at DTUK has been pretty good at responding but always leaves me asking more questions.

I think he's baiting me!

He didn't have the 3 channel when I got mine. Might see if he's willing to let me trade in my current model for that one. I messaged him on E90post a couple of days ago, but he hasn't responded. Where are you contacting him? Via email or forum?

Originally Posted by Stugots

I'd be interested to know which map that's on, actually. The reason I ask is because I've had the car dynoed (HP only) with the DTUK tune, and I peaked at just over 365HP.

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?

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?

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?

He didn't have the 3 channel when I got mine. Might see if he's willing to let me trade in my current model for that one. I messaged him on E90post a couple of days ago, but he hasn't responded. Where are you contacting him? Via email or forum?[/QUOTE]

Email. Andrew@DTUK <andrew@diesel-performance.co.uk>

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

powered by lemings

Originally Posted by wanderlust

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

powered by lemings

No, but according to a recent post by Evolve seems to indicate they are working on that and a "hybrid turbo" whatever that is.

Originally Posted by cssnms

a "hybrid turbo" whatever that is.

Did a little digging around and here's what I found: http://www.hybridturbos.com/hybrid-t...-turbocharger/

VERY interesting - I would imagine that Evolve would write a tune to take advantage of the upgraded capabilities of the turbo.

Originally Posted by cssnms

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?

My first tests with JBD that BMS have on their site didn't generate limp. The one that did are results I never reported. My last dyno was in December, done on the same day, and the car did sit to cool down this time (I'm not going to ever go down the heatsoaked road again...lol)

Program 3 Map 7 can, and more often than not, will trigger limp and SES...it is very, very aggressive, and only seems to be content on very cool days.

Originally Posted by wanderlust

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

powered by lemings

I've been trying to work with a company in Portland, but we can't seem to come together on time.

Regarding the 3 channel DTUK box, Andrew told me a few weeks ago the 3 channel system is not available in the US.

I'll dyno my 2011 335d with the DTUK CRD-T box and post results, however I need instructions on how to do the dyno the right way, and in particular a way that will help posters on this board.

What specific dyno should I look for, what gear to dyno in, what settings to have enabled on the car, etc would all be helpful to expedite this process. I don't have enough time to do research on this so if you could spoon feed me it would help.

I live in Seattle, WA and if any of you could recommend a good place to go for the Dyno would be appreciated. thanks!

Originally Posted by 62Lincoln

Did a little digging around and here's what I found: http://www.hybridturbos.com/hybrid-t...-turbocharger/

VERY interesting - I would imagine that Evolve would write a tune to take advantage of the upgraded capabilities of the turbo.

Very interesting indeed, reminds me of the modified wheels that people used to put on eclipses. If it works anything like them then it increases peak boost but also delays spool up a bit as the new larger compressor is now larger relative to the turbine. But looks like they do something to the turbine wheel to maybe help with the slower spool up?

Originally Posted by Ligament

I'll dyno my 2011 335d with the DTUK CRD-T box and post results, however I need instructions on how to do the dyno the right way, and in particular a way that will help posters on this board.

What specific dyno should I look for, what gear to dyno in, what settings to have enabled on the car, etc would all be helpful to expedite this process. I don't have enough time to do research on this so if you could spoon feed me it would help.

I live in Seattle, WA and if any of you could recommend a good place to go for the Dyno would be appreciated. thanks!

The type of dyno doesn't really matter, since you are simmply measuring the delta between the baseline and tuned results. Dyno Jets are good machines as are Mustang Dynos. Don't get to fixated on the actual HP results; remember dynos are just a tool to measure gains. Find a shop that has the latest software and make sure they can get your torque readings. Most operators know what their doing, but generally speaking the dyno should be done in 4th gear, smoothing set to 5. You also want to make sure the environmental conditions are nearly the same i.e. outside temps, humidty etc. as well as make sure you car sat for the same amount of time (a hotter engine will produce lower results).

I'm confused - on their site, it does not show the t-box available for the US spec car. Or maybe I can't understand their English. If you order the t-box, will it still work on US spec cars?

Offhand I know two people who build custom turbo lits(intercoolers as well) and quite easily could make one for these cars. Now if they have the interest to do this or what they would charge is beyond my knowledge. They also of course could do custom exhaust work. One is in San Antonio and the other I believe San Diego(sp?). they mainly do domestic based race cars or custom street ones.

Originally Posted by Snipe656

Offhand I know two people who build custom turbo lits(intercoolers as well) and quite easily could make one for these cars. Now of they have the interest to do this or what they would charge. They also of course could do custom exhaust work. One is in San Antonio and the other I believe San Diego(sp?). they mainly do domestic based race cars or custom street ones.

In 4 years or so when it is out of warranty I will probably experiment with this a bit. I figure adding a car a year or so for two years then the reliability is slightly less critical on any given car and I can play with swapping turbos and the like.

Sure but mentioning for the people having trouble finding a solution.

Originally Posted by Snipe656

Sure but mentioning for the people having trouble finding a solution.

Tell them to post the build process and what they used if you happen to run into anyone. My hope is that by the time I do it maybe someone else will have already...

Originally Posted by Ligament

Regarding the 3 channel DTUK box, Andrew told me a few weeks ago the 3 channel system is not available in the US.

Yes, he confirmed in an email that they are not offering it due to more costly and requires a power supply (12v input), and is more complex.

The 2 channel sounds to me to be about the best option out there, given the results shown so far and the price.

Originally Posted by EYE4SPEED

I'm confused - on their site, it does not show the t-box available for the US spec car. Or maybe I can't understand their English. If you order the t-box, will it still work on US spec cars?

Eye for speed, yes they have the DTUK-CRD-T for the US spec 335D. No problema. Two folks on here have it installed, Stugouts and Ligament.

Price is BP 340 or about $550.00. If interested just send Andrew a note and tell him Ronin sent you.

I'm seriously interested.