3.8/4.6 BTR Tunes Ready To Ship!

[dmitriylm]

After all that buildup, I'm a bit disappointed in the pricing. I had already psyched myself up to the $600, but the jump to current price point is just too much for me (value judgment perspective). Oh, well. Hope y'all give us all good feedback on the chips. My interest was not in peak numbers, but the lower end torque boost and firm full throttle shifting (IMHO my 2011 has long full throttle shifts). I'd be curious to hear reports on those to attributes. The full defeat of traction control would have been nice as well.

It's expensive but I searched for new OEM ECU's for the 4.6 online and you can't find them for under $400. The $95 discount helped too.

 

[TheDr9669]

I received a response from BTR in using a provided ECU... No go. They only sell the tune with the ECU sourced thru them. Bummer, I have this brand new ECU that I was hoping to send off to get tuned...

 

[Sleepr24]

So maybe I am reading the Dyno results wrong but BTR claims there is more power throughout the entire power band but it appears to me the power does not surpass that of the stock tune until well into the 5k RPM range. I guess the acceleration appears to be more linear on the BTR tune with a smooth increase from 2k all the way to redline. However, the one thing I like about how my car currently runs is how immediate the power comes on from the lower RPM's. I will say, it does build to its plateau quickly which numbs the acceleration feel throughout the power band but it seems as if the BTR tune would hurt acceleration. Am I completely off here? I am no expert at reading Dyno results so anyone with more experience please feel free to expose my inner noob

http://www.shopbtr.com/assets/images/dyno/2010 38 AT.jpg

 

[fireguy0306]

So maybe I am reading the Dyno results wrong but BTR claims there is more power throughout the entire power band but it appears to me the power does not surpass that of the stock tune until well into the 5k RPM range. I guess the acceleration appears to be more linear on the BTR tune with a smooth increase from 2k all the way to redline. However, the one thing I like about how my car currently runs is how immediate the power comes on from the lower RPM's. I will say, it does build to its plateau quickly which numbs the acceleration feel throughout the power band but it seems as if the BTR tune would hurt acceleration. Am I completely off here? I am no expert at reading Dyno results so anyone with more experience please feel free to expose my inner noob

http://www.shopbtr.com/assets/images/dyno/2010 38 AT.jpg

Blue line looks to be stock, Red is tuned.

There is definitely a power increase. The torque jump at low RPM's look very nice.

 

[dmitriylm]

So maybe I am reading the Dyno results wrong but BTR claims there is more power throughout the entire power band but it appears to me the power does not surpass that of the stock tune until well into the 5k RPM range. I guess the acceleration appears to be more linear on the BTR tune with a smooth increase from 2k all the way to redline. However, the one thing I like about how my car currently runs is how immediate the power comes on from the lower RPM's. I will say, it does build to its plateau quickly which numbs the acceleration feel throughout the power band but it seems as if the BTR tune would hurt acceleration. Am I completely off here? I am no expert at reading Dyno results so anyone with more experience please feel free to expose my inner noob

http://www.shopbtr.com/assets/images/dyno/2010 38 AT.jpg

The significant bump in low and mid range torque will improve acceleration times and horsepower helps at the top end.

 

[daviderle]

I have been holding on to these thoughts for a while, but maybe a good time to share that I have not been able to reconcile few items regarding the BTR Dyno run results:

1 - Numbers appear to be too low!

2 - There is almost 30 points difference between tailwalker's original Dyno run and this run http://genesisowners.com/hyundai-genesis-forum/album.php?albumid=746&pictureid=3927? Both runs appear to been done on a Dyno jet, 10% error margin is a tad too much for me...

Tailwalker's results appear to be in line with other previous runs, example http://genesisowners.com/hyundai-genesis-forum/attachment.php?attachmentid=4568&d=1415241955 (again done on a Dyno jet)

3 - The infamous power dip between 4500 to 5000 RPM appear to be missing in both pre and post tune runs.

I am aware that each dyno setup is different, in addition to environmental conditions may play a factor, but neither aspect should impact the overall engine output signature and by such a wide margin.

These observations maybe irrelevant to the question, does the ECU tune works, or not? And if so, by how much? But, I did find these facts rather fascinating never the less...

Hopefully some people can add additional solid data around March, should they choose to perform the ECU tune.

 

[84FordMan]

How about now? I put in the data points from the AMS dyno one as it had the same RPM range represented, IIRC the AMS one is intake/exhaust, which is what Sam had for that tuned dyno.

Green is the AMS horsepower and purple is the AMS torque data points.

 

[daviderle]

How about now? I put in the data points from the AMS dyno one as it had the same RPM range represented, IIRC the AMS one is intake/exhaust, which is what Sam had for that tuned dyno.

Green is the AMS horsepower and purple is the AMS torque data points.

Much better. thank you for putting it in context for me.

As a side note, I can't wait to see what the graph will look like once the super charger project is completed...

 

[fireguy0306]

What causes the 4500-5000 dip and can we fix that at all?

 

[daviderle]

What causes the 4500-5000 dip and can we fix that at all?

I am personally not sure, this condition is only present on the Tau V8, for both the 4.6 & 5.0 engines, while 3.8 does not exhibit any signs of this dip. The effect is hardly noticeable in the first two gears, somewhat apparent in the third gear, very evident in the forth gear on The 6 speed ZF and 5th gear on the Hyundai 8 speed automatic.

As far as to why? it has been suggested that it is part of the design to protect the engine from vibration in that specific band under full load, but I suspect only the people who designed the engine would know for sure.

______________________________

Help support this site so it can continue supporting you!

 

[dmitriylm]

I always thought it was a cam change over.

 

[Tailwalker]

Just so it's on the same thread - maybe Ed can add it to BTR's. I have custom 4" intake and primary cat back exhaust, with no resonator. Not certain if it will make a difference. I do not have a 'stock' run. The numbers on this are as follows,all with the exhaust setup already installed:
1 - stock intake
2 - stock intake with K&N drop in filter
3 - custom intake.

 

[Tailwalker]

As you can see - Torque is dramatically increased, and HP is 26 over my bolt on mods.
I cannot say why his baseline run was 15 over my final, but that could be the machine being older (mine) as well as time of year/temp. I know Sam has the same mods as I do, so the initial run is rather confusing. We will get a better understanding at April's BTR tune event. We will have a stock 4.6 as well as my 'modded' one. Better baselines from stock, plus the tune...and of course the supercharger.

 

[xiaphin]

Based on that dyno chart I need to let the 3.8 breath with a custom intake.

 

[Tailwalker]

Indeed. Sam's results were much better, as I said. He has the same bolt on's. The large disparity in numbers is concerning however. April will have things straightened out though. I will do a 'stock' run, then a supercharged one.

 

[svensk]

Need to see a BTR tuned car at the track. Dyno numbers don't tell a full story.

 

[inmanlanier]

The dip in power between 4500 and 5000 may be acoustics. Did I see somewhere that they have 2 sets of runners for each cylinder? If so, I'd guess that this is the point where they transition to a second runner. Remember, volumetric efficiency (which translates to airflow) is ofttimes greater than 100% in tweaked performance cars these days. The only way any points are greater than 100% is by getting the extra "push" from the acoustic effects (sound waves bouncing back and forth at frequencies that complement the flow and add an extra "push" if you will). If there is only one set of intake runners per cylinder, then never mind! Just my thoughts.

 

[heywood]

I have a 2012 V8 Genny sedan. I've added a Magnaflow cat-back exhaust and R2C intake. I really like the idea of getting the T/C turned all the way off when I push the button but, will it also turn off the electric diff like the fuse trick does? I still want the diff active. I am looking forward to hearing some real owners feedback. Those dyno charts aren't showing enough to justify the price, for me... I would also be more willing to purchase a handheld tuner, that I can adjust settings with, and return to stock tune for dealer visits!!! I've had SCT tuners for my last 2 cars and really liked the options and ease of use. Is anyone working on that style of tuner??

 

[xiaphin]

NC BTR Tuning Event

The tuning schedule is listed on BTR's site in case anyone is interested. (Link was posted earlier but just had price information) There will be two of our members getting tuned on Saturday, one will be supercharged and the other will have custom bolt-ons. Solid turnout from the Genesis Community and should be a good time.

NC BTR Tuning Event

 

[LandoAWD]

I'm there for spectating and smartassery