Oh my, it looks like I missed lots of fun due to frantic travel schedule but it appears that few things got clarified in that time frame!
So instead of engaging in a useless debate with little benefit, like few threads on this forum that have been mercifully archived, I would rather focus on the possible golden opportunity and take a brief moment to explain the angle of my original post.
I feel the gain and I am happy. I raced my son before and after with his M4 BMW. Stock he beat me by 15 cars minimum and now its 5 at best so my car definitely has a great gain in power and sound.
I am not trying to be overly scientific and I am not going to sit here and tell you all my life story, how smart I am and how much I know about cars and car computers.
I will tell you Granatelli has a 70 plus year history in auto racing including NASCAR and winning the Indy 500 with none other than Mario Andretti. He has no reason to fudge numbers and he is not in the Genesis performance business so has nothing to gain. The man was trying to help me out. I asked him to post here and then watergate and deep throat come up with totally fuzy math as to how fast many car was running during the pull?? Really??
The only think removed from the dyno sheets were my naee home address
First welcome to our community and congratulations on being the first to Dyno a 2015 5.0 model as well as the first person who have done a performance related mod (as far as I know).
Also, thank you for validating Granatelli’s work and credentials, however, please understand that when an unknown person jumps in from nowhere on behalf of another member, announces incredible gains by a simple mod that have never been observed/noted by any 1st Gen 4.6/5.0/R-spec owners in the last seven years, it conjured up past threads by some fly-by-night outfits trying to make a quick buck, while denying “Hyundai Genesis” (the owner of this site) the appropriate advertising fees necessary to keep this unique site going for our community.
As far as the Dyno data, here is a sample of one of the processed images of what originally aroused suspension:
Clearly I was not there, in reality none of it has any significance as you are happy with the end product, which all that matters at the end of the day.
Should you have chosen to share these results with us directly, I assure you my reaction would have been completely different.
Granatelli, you can use my 2012 spec to prototype the twin turbo kit

, Im familiar with your work!
Thank you for validating Granatelli’s work. If there is any chance that you could Dyno your 2012 R-Spec using Granatelli’s facilities, it will represent a great service to our community, as it will be the first time that a 1st Gen and 2nd Gen 5.0 engines are Dyno’ed on the same equipment and preformed by the same person, which will give us valuable data as to how far Hyundai went in tweaking the 2nd gen in the name of comfort and fuel economy (?as well as potentially avoiding the Gas Guzzler Tax?).
If you're the ECU expert then I need to talk to you ASAP I know someone designed a twin turbo kit for this engine at SEMA 2014 and we would love to do our own kit to mass sell but first we need the tuning side addressed. What info can you share?
I would love to help, but it has taken more than 5 years to get just to get 25% of the 4.6 Tau ECU cracked and around 5% of 5.0 R-SPEC in 10 months, the entire process has been so frustrating as there is simply very little info to go on. At least for the 1st Gen Genisis, Hyundai has done such a good job of not only protecting the engine management system but also encrypting the CAN bus traffic between the various components unlike some other car manufactures that I would care to mention (
http://www.computerworld.com/articl...an-inexpensive-and-easy-way-to-hack-cars.html ).
So late last year, along with another member, we decided to sponsor BTR (Blood Type Racing) who have a long history working Hyundai Coupe performance options, to see if they can crack the Tau 4.6 and 5.0/R-Spec ECUs. They did manage to crack the 4.6 under six months and it is projected that they will be able to tune the 4.6 / ZF 6 speed sometime later this year. Unfortunately the 5.0/R-SPEC ECU work is still under development in Korea, but they are still hopeful to have some better news later this year.
In addition BTR, earlier this year had produced a turbo setup for the 1st Gen 3.8 Genesis sedan, based on the coupe work they have done in the past. However, it is unlikely they will do the same for Tau V8, potentially due to the engine bay physical limitations and other considerations, such as, most owners are not willing to forgo the 100k/10 year factory warranty.
At this point, I would be happy if they can achieve 20-25hp increase for my 4.6 and ecstatic if they can get 25-30hp for my R-SPEC with a simple ECU tune!
As far as SEMA 2014, indeed Hyundai commissioned two independent power houses, ARK and TOCA (undoubtedly with access to Hyundai own engineering resources) who independently worked with them to produce eye poping 550HP and 600HP (respectively) heavily modified versions of the 2015 5.0 genesis sedan which included engine bay components placement redesign (
https://www.hyundaiusa.com/about-hy...SONATA_AND_2014_GENESIS_COUPE_A-20141104.aspx).
Curiously neither firm sells any performance items for the 2015 Hyundai Genesis (maybe due to NDA agreements?):
http://www.arkperformance.com/
http://johntoca.com/
As far as the performance of future models concerned, some us are hopeful that new Hyundai N-Division, under the leadership of Biermann who was chief engineer for BMW's M performance cars, will be able to tweak the Genesis to a new level, just in time for the mid cycle refresh due around 2017-18 (
http://www.autonews.com/article/201...ongtime-bmw-executive-in-performance-car-push).
At any rate, I am man who has no qualms in admitting an error of judgment, which happened in this case, simply by misinterpreting your intentions as well as not doing a better job of researching your credentials and for that you have my sincere apologies.
My only wish is that if you decide to productize the intake design and sell it to any member of this forum, is to reach out to Hyundai Genesis (the owner of this site, his name is
SAL) and become an accredited vendor (I believe the fee is very modest, just to keep this site going).
Finally, it has been more than 15 years since I worked on a twin turbo setup, so should 206rspec decides to Dyno his 2012 R-Spec at your facility, I would really appreciate your take on what type of turbo setup is required to fit in the rather cramped engine bay? Ideally, without any major work to move things around.