From Gruppe-S to ACE club sport 400 headers

[949 Racing]

Originally Posted by PulsarBeeerz

Can you throw up the dyno of the JDL? I could only find the ACE dynos in the build thread.

Never got a clean graph. Issues with ignition pickup. Even the ones I posted are missing data and spiky. JDL basically same as ACE 350 but didn't fall off as much after 7100, some of that due to the changes we requested to a certain table.

From what I have seen, having many days dynoing our 86, is that weather has a significant effect on readings even when SAE corrected. Same set up would fluctuate about 8whp depending on heat, humidity and barometric pressure. Even wider swings if we turned SAE correction off. Lesson is that direct and precise comparisons can only be made on the same day/dyno/car. Outside of that you are looking more for relative numbers, trends, etc.

[StraightOuttaCanadaEh]

Originally Posted by 949 Racing

Never got a clean graph. Issues with ignition pickup. Even the ones I posted are missing data and spiky. JDL basically same as ACE 350 but didn't fall off as much after 7100, some of that due to the changes we requested to a certain table.

From what I have seen, having many days dynoing our 86, is that weather has a significant effect on readings even when SAE corrected. Same set up would fluctuate about 8whp depending on heat, humidity and barometric pressure. Even wider swings if we turned SAE correction off. Lesson is that direct and precise comparisons can only be made on the same day/dyno/car. Outside of that you are looking more for relative numbers, trends, etc.

sorry if it's been mentioned elsewhere, but are you talking about the JDL 4-2-1?

[949 Racing]

The JDL EL is a 4/2/1.

[CSG Mike]

Originally Posted by churchx

On LHD you should be safe to get A350. As for tune, for Ace headers i suggest to get DT tune (ecutek). Ace headers doesn't show up that much gains (which probably were reason to buy those headers in first place) with OTS tunes, hence suggestion to go for DT tunes. Buy it, install, send logs back, they will tweak/release update revision(-s) and you should be ok. Most probably result will be much better with DT tune, despite "not local"/"remotely", then with some local tuner that hasn't spent that much time to get specific tune for these headers right (dyno time & tuner's time costs, a lot). There might be competent tuners around locally, i don't want to belittle anyone, but they simply won't have as much experience to dial specifically these and you won't have budget for them to replicate those hundreds of dyno runs and month(-s?) of fine-tuning tune to get result on par with DT's.

Zach Tucker is no longer at DT. He left nearly a year ago. He's at CSG now.

[949 Racing]

William Knose and I developed the tune on Blub with all our new tweaks. The unique features of that tune, most of which are incorporated in all DT tunes now, were after his assistant departed. This involved months of road and dyno testing here as well as dyno testing at DT.

[86MLR]

https://www.iwsti.com/threads/elh-vs-uelh.321937/unread

[tomm.brz]

Originally Posted by 86MLR

https://www.iwsti.com/threads/elh-vs-uelh.321937/unread

Still a different engine.

[DeliciousTuning]

Originally Posted by 949 Racing

William Knose and I developed the tune on Blub with all our new tweaks. The unique features of that tune, most of which are incorporated in all DT tunes now, were after his assistant departed. This involved months of road and dyno testing here as well as dyno testing at DT.

As a quick note to everyone, with the changes to the business last year, I personally went back through all our 86/BRZ tunes and started from a blank canvas. I felt the way the tunes were being handled from initial delivery to final revisions for all our customers, new and old, was not to the level I expected. At the end of the day I am the owner and the lead calibrator of Delicious Tuning, so I can only blame myself on this.

So about a year ago, I made the choice to rebuild the process, work with some highly technical engineers in airflow design, and network/server automation so that we can build a better tune (better airflow in and out of the engine) and have a faster turnaround time (hopefully finish that up this year). The tunes are an ever evolving process (as EcuTeK releases more features and tables) but with a solid base tune, we are finishing up the automation process this year.

All the NA tunes we offer are brand new as of March 2019, they included extensive testing on quite a few header designs, including specific tunes for the Stock 2013-2016 header, Stock 2017+ headers, ACE 350, JDL 4-2-1, and Tomei. The major difference between the old/new tunes is in how the ECU adapts to sensor inputs, in what scenarios it adapts, how it adapts in those various scenarios and how quickly it will make changes. These adaptation help smooth out the power delivery, offer a wider / more controlled throttle input, and adjust to the environment conditions more so than before to ensure as much possible consistency.

There is more in the works this year with further safety features and cool tricks we are implementing with the ECU. So be on the look out.

Cheers,
William Knose
Delicious Tuning