Stage-2 ECU tune Versus JB1 "real life only please" what do you think?

[2015S3]

I am looking for real life experience on this, not someone that "know" how great an ECU tune is please. I have run every PB unit (NS, DTUK, now JB1 (which I love)).

please let me know the pros and cons and lets keep TD1 out of the conversation we all know pay to play.

[coolwater]

I never had a piggyback, but I've been very happy with Eurodyne stage 2.

I don't even have the tcu tune and it is plenty quick. Other than the misfires I had once, it's been solid after updating to v2 of the tune.

I have some driving videos in the car on my YouTube channel.

-cW

Sent from my SM-G935V using Tapatalk

[EmmanueleDesign]

On a stock car, the DTUK ran pretty well on our shop car (only on race fuel, on 91 octane it made little power over stock). Stage 2 is where the differences seem to exaggerate themselves. We've had a number of full bolt-on cars running JB1's, and while they certainly do make a power bump over stock, when the customers switched to a tune the power difference was readily apparent. While a piggyback is a nice option for those who do not wish to tune, unfortunately you are pretty limited when you can only really control boost additive.

Disclaimer: We've only used GIAC for tuning, so this is what our observations are based on.

[2015S3]

Thanks Thomas,

I have all the stage2 bolt ons, DP, intercooler, Boost pipes, BOV etc. I am actually considering the Eurodyne as well as we tuned our 13 R with that software. I think at this point the JB maybe maxed out with what it is able to offer in terms of power. gorge has been great to me so no complaints there, I know there is a JB4 on the horizon for us as well so that is really holding me back on the ECU tune,

[Food4Audis]

smoked a JB1 tuned S3 (exhaust+intake) against my APR stage 2 (DP) by few car lengths. Told my buddy that the JB1 is so limited as a piggy back compared to a tune.

[2015S3]

So here is my first hand, and the JB is not soo limited it is the BEST tuner box out. That said the JB4 which is due end of year will eclipse the original JB1 unit.

I have had experience with every box and JB1 was bar far the smoothest. now that I am stage-2 Eurodyne w/TCU tune, I can tell you there is a difference. I was stage-2 hardware with JB1 on a custom map-6. The car did run well and was plenty fast outside of the pesky CEI light from the unitronic HFC.

Now the TCU tune really woke up the car with the stage-2 93 OCT. I will also say the transition to boost is very very smooth, not the JB! wasn't, but the ECU tune is silky. Now we can all talk about the TD1 yada yada nonsense, but you have to take that risk into consideration.

[SnowyLCR]

I've measured my car over and over again for the 100-200km/h (62-124mph) interval.

All below runs with 93/98 octane
Jb1 map1 5.0 with stock hw gave me 11.6 seconds
Jb1 with dp and panelfilter, map1 5.2 30% E85 70% 93/98 octane
Eurodyne Stage 1.5 91 octane tune and dsg tune 10.4 (93/98 octane in the tank).

The car have gained in the 100-150km/h interval but are equal to jb1 150-200.

As soon as Chris have released the stage2 93 octane tune Ill do an other test. I am hopeful that he will upload the tune prior to the weekend.

[D-Press]

Ive measured my car over and over again for the 100-200km/h (62-124mph) interval.

All below runs with 93/98 octane
Jb1 map1 5.0 with stock hw gave me 11.6 seconds
Jb1 with dp and panelfilter 10.6 map1 5.2.
Eurodyne Stage 1.5 91 with dsg tune 10.4 ca. The car have gained in the 100-150km/h interval but are the same 150-200 as with jb1
Will instal Stage 2 93 tune til the weekend and will do some new testings.

Thanks for sharing your tests results.
May I ask you why you didn't test the Eurodyne 1.5 on 93octane same as you did on JB1?

[SnowyLCR]

The fuel has always been 93/98 but the eurodyne tune is for 91 octane. Chris will upload stage 1.5 93 and stage2 93 this week.

[StigThe]

The fuel has always been 93/98 but the eurodyne tune is for 91 octane. Chris will upload stage 1.5 93 and stage2 93 this week.

Am I correct (seen a few of your posts on Golf forum) that you live on Sweden??

Didn't think Eurodyne was available here.

Anyway, will be interesting to see the results with stage2 software.

The small difference above sounds like what could be expected from dsg tune alone.

Also guess your not remapping back to stock and plugging back the Jb1,
but would be interesting to see if it gave some more with some E85 and +5.4...

[SnowyLCR]

Jb1 has been sold to an other happy owner.
I did a run @ björkvik with map1 5.2 30% e85 and rest 93 octane. Thats my best time with jb1 (10.584).
The times with eurodyne have been with 93 octane purely, no mixtures with ethanol.
I ordered the tune via usp motorsport really no issue. Had the cables / powertap after 2days.

[StigThe]

Jb1 has been sold to an other happy owner.
I did a run @ björkvik with map1 5.2 30% e85 and rest 93 octane. Thats my best time with jb1 (10.584).
The times with eurodyne have been with 93 octane purely, no mixtures with ethanol.
I ordered the tune via usp motorsport really no issue. Had the cables / powertap after 2days.

Cool!

Did you flash with the standard US Eurodyne software or did you have to request custom Europe compatible software?

Thinking of engines being slightly different, for example not having port injection on US cars...

[SnowyLCR]

They have Row tunes aswell as na tunes. 😎

[kornsined]

So here is my first hand, and the JB is not soo limited it is the BEST tuner box out. That said the JB4 which is due end of year will eclipse the original JB1 unit.

I have had experience with every box and JB1 was bar far the smoothest. now that I am stage-2 Eurodyne w/TCU tune, I can tell you there is a difference. I was stage-2 hardware with JB1 on a custom map-6. The car did run well and was plenty fast outside of the pesky CEI light from the unitronic HFC.

Now the TCU tune really woke up the car with the stage-2 93 OCT. I will also say the transition to boost is very very smooth, not the JB! wasn't, but the ECU tune is silky. Now we can all talk about the TD1 yada yada nonsense, but you have to take that risk into consideration.

What map6 settings were you using?

[SnowyLCR]

Ok, installed the eurodyne stage2 93 octane tune yesterday. Havent run any logs or done a vbox run yet. But the first impression is just wicked! Stock - jb1 was a big difference but stage1.5 91 - stage2 is as big as that first step.

Jb1 map1 @5.2 93octane and 25% e85 with supporting hw = stage 1 tune with supporting hw.
The stage2 tune made a big differnce according to but dyno. Will report back after ive run some runs (60-130mph/100-200km/h).
So far the best
60-130 -
12.584 with jb1 as above
12.4x with ed stage1.5 91

100-200
10.6 with jb1
10.4 with ed.

Did a test with racelogic now.
100-200 with stage2 93 tune equals to 9.6 seconds.
60-100mph 4.5 seconds.

[BillT]

Thanks, Snowy. I was looking at the TQ curve for the Eurodyne tune. There appears to be a substantial dip in TQ from about 2900RPM to 3300RPM. Can you feel this using your butt dyno?

[SnowyLCR]

Honestly, I can't feel that dip. Most of the times driving the car its in D mode. Shifting at 1700-2600 rpm.
Highway driving in 6th at 2800 and doing moderate acceleration (enough for wifey to ask me let go of the gas cause she doesnt like the feeling of beeing showed in the seat by the tourque) its nothing there to be noticed.
Doesnt the cam change setting at around that rpm range? I remember with the jb1 i could feel the car making more power around 3000 rpm.

[BillT]

Yeah, wives have a way of getting in the way of some spirited fun when they are just the passenger. Put her in the driver seat thought, then it is a different story. My wife drives like a maniac. Had a 2014 BMW 550iX with 445Hp. She learned how to corral all those horses. If somebody tried to tailgate her, it was not long until they were just a spec in the rear-view mirror!