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I wanted to post up a 93 octane Stage 2 ECU/TCU combo tune from Slav @ ECCTuned in Toronto Canada.....
Why a ECU/TCU combo? If you don't modify the TCU stock torque limits, the ECU will not be able to get the most from the tune, as torque management will limit torque and hence horsepower on the street.
This car has an aftermarket downpipe, with all other hardware stock, including the intake. According to Slav @ ECC, the downpipe is good for ~10whp.
625 whp / 615 wtq at the wheels, with 12% drive train loss equates to 710 bhp / 700 btq.
Look at that torque curve and area under the graph! Smooth power delivery.
I plan on going back to Slav in the near future to look into a Race Gas tune.... I expect that will be very spicy.
Last edited by brutus_tx; Feb 2, 2023 at 03:52 PM.
Very impressive!
Do you know what kind of boost you are running to get to these numbers?
Another quick question: How does the torque limiter in the TCU limits the HP in 5th gear (which I assume is what's used during the dyno test)? I was always under the impression that the torque limit issues are on the 1st and 2nd gear and never get to intervene in higher gears.
Thanks
Very impressive!
Do you know what kind of boost you are running to get to these numbers?
Another quick question: How does the torque limiter in the TCU limits the HP in 5th gear (which I assume is what's used during the dyno test)? I was always under the impression that the torque limit issues are on the 1st and 2nd gear and never get to intervene in higher gears.
Thanks
Sorry, I have to plead ignorance on how much boost the tune is running.
The dyno was performed in 5th gear.
From what I understand, Tq limiters are present in every gear and can be increased accordingly with a TCU tune.
Certainly the torque limits are lower in the first few gears, but they are active in all gears to varying degrees regardless.
This is the limit of my knowledge. Slav at www.ECCTuned.com can better answer your questions I imagine.
To fully take advantage of the potential performance gains, the ECU/TCU combo really needs to be considered.
Sorry, I have to plead ignorance on how much boost the tune is running.
The dyno was performed in 5th gear.
From what I understand, Tq limiters are present in every gear and can be increased accordingly with a TCU tune.
Certainly the torque limits are lower in the first few gears, but they are active in all gears to varying degrees regardless.
This is the limit of my knowledge. Slav at www.ECCTuned.com can better answer your questions I imagine.
To fully take advantage of the potential performance gains, the ECU/TCU combo really needs to be considered.
So I spoke with Slav today, very nice guy and very knowledgeable.
He said that the ECU tune for the GTC/GTR runs boost of 1.5 bars/ 22psi and provide a +70WHP over the baseline HP. I think this is very much in line with the added HP I have seen out there with 93 oct and original OEM turbos. I assume that downpipe and better coordination of torque info between the ECU and TCU may add few more HP to this.
Looks like you're local, where did you do your Dyno runs?
These dynos were taken at ECC Tuned's shop in Toronto.
For my local dynos I go to DD Performance Research in Sealy Texas. They have the same type dynojet and the owner/operator is a great and knowledgeable guy. http://ddperformanceresearch.com/company-info.php
Originally Posted by LTHL VPR
What were the baseline numbers (before the ECU/TCU tunes)?
That would be helpful as dyno are unique and have a wide range of outputs and numbers.
Here you go... base versus Stage 2 93 octane ECU/TCU
These dynos were taken at ECC Tuned's shop in Toronto.
For my local dynos I go to DD Performance Research in Sealy Texas. They have the same type dynojet and the owner/operator is a great and knowledgeable guy. http://ddperformanceresearch.com/company-info.php
Here you go... base versus Stage 2 93 octane ECU/TCU
Hi brutus_tx,
Thanks for the comparison chart. However, I got a bit confused by it and your message.
Your baseline and tune chart shows that the tests were done in different temperature and humidity levels, indicating that these were done in different times and maybe different dynos.
You also mentioned that a dyno was done in Toronto, did you take your car over to Canada? I was under the impression you are in TX, kind of a long drive
It is highly recommended that the baseline dyno test (stock tune) will be done before the tune applied AND on the same day and the same exact dyno, without changing any settings. Otherwise, the tune level cannot be determined correctly. It is therefore difficult to see if ECC really gave you a tune with this high output, or this is a dyno setup mistake.
Sorry for any confusion or misunderstanding.
In the original post I shared a dyno direct from Slav.
I guess people could have made the assumption that it was a local dyno. Even though I never claimed it was mine, I can see where that assumption could be made.
He sent me this dyno when I was looking for an example of the power profile his tune made versus stock power.
I should have posted the before/after dyno to show the comparison in the opening post. If you look past the variability in a dyno, and allowing for different atmospheric conditions, the power profile is stock like and just elevated, which was the thing of most interest to me. How much it is elevated will be truly unknown unless we turn this into a science experiment. It is hard to quantify absolute numbers, as you touch on above. As I'm a consumer I'm less concerned with that, though I do know that tuners like to promote number to sell their product.. And yes, I fell into that trap as well by quoting numbers that, at best, should be considered subjective.
I plan on doing some 60-130 rolls with the stock tune and then comparing the Slav 93 tune 60-130. Even if the temp is slightly off, the difference in power should be substantial and I'll really keen to compare those values. I think that will be the proof in the pudding. Faster is faster after all.
Stage 2 tune and downpipes got me to 665hp on my GTR, thinking about doing a TCU tune, how far would that get me HP wise and would my shifting go back to how seamless it was stock before tune and downpipes?
so I I understand correctly its running 700lb/ft at the engine?
how is real world performance? Do you struggle with putting power down?
I struggled putting down stock power at times when the tires were cold.
I had to adapt to a different driving style. What compounds it for me is the fact my daily is a 740 awhp E63S where I can floor it without consequence.
When I roll into the boost it helps to keep traction control on.
I plan on doing some 60-130's over the next week of so to compare and I'll post up results...
Last edited by brutus_tx; Feb 10, 2023 at 05:59 PM.
Stage 2 tune and downpipes got me to 665hp on my GTR, thinking about doing a TCU tune, how far would that get me HP wise and would my shifting go back to how seamless it was stock before tune and downpipes?
I really don't know. I suggest reaching out to Slav to discuss. I know the stock TCU tune will limit torque, and hence power made in the lower gears as a minimum. The clamping force may not be up to snuff in the higher rpms and gears either, when clutch slip may be introduced due to the higher horsepower and which then may reduce life of the clutch.
If you don't already have a TCU tune yet, then your stage 2 tune is probably underreporting... can you revert to stock and see if your shifting reverts to normal?
Last edited by brutus_tx; Feb 10, 2023 at 06:19 PM.
I would love to see brutus and Y.Haider run those 60-130 times. That would then settle some of the dyno questions. For instance, my best 60-130 was 6.75 secs and I have a Renntech HHT and BMC filters (that probably do nothing) in my GTR. Let me know how you compare. I also ran 1 1/4 mile and achieved 131mph trap. Dyno's are for bench racing and selling products!
I would love to see brutus and Y.Haider run those 60-130 times. That would then settle some of the dyno questions. For instance, my best 60-130 was 6.75 secs and I have a Renntech HHT and BMC filters (that probably do nothing) in my GTR. Let me know how you compare. I also ran 1 1/4 mile and achieved 131mph trap. Dyno's are for bench racing and selling products!
Thanks!
Chuck
I agree 100%... but a dyno does also indicate how the tune is applied. What I really like about Slavs tune is the fact it mirrors the stock torque/power profile, just more of it across the entire RPM range.
I agree 100%... but a dyno does also indicate how the tune is applied. What I really like about Slavs tune is the fact it mirrors the stock torque/power profile, just more of it across the entire RPM range.
With the ECC tune, can you switch between Stock and tune by yourself without being online with ECC? or you have to connect or have your car connected to the internet in order to switch?
With the ECC tune, can you switch between Stock and tune by yourself without being online with ECC? or you have to connect or have your car connected to the internet in order to switch?
You need a dongle supplied by ECC, a wifi enabled laptop and a cellular hot spot for wireless access.
Slav supplies two separate programs... ECC Tuner and ECC Logger with the dongle.
Once you've logged into the ECC tuning site, you can switch between multiple tunes.
Switching back to stock takes less than 2 minutes typically.
It can take upwards of 10 minutes to load the tune for the first time... after that it takes typically less than 2 minutes to switch between ECU tunes.
Using the same dongle and hardware I can then log data using ECC Logger and send the data back to Slav to review and tweak the tune... rinse repeat by then uploading the tweaked tune and rerunning a log until happy with the numbers.
The logger has a predefined set of parameters that Slav uses to tweak the tune. Its a very intuitive system and simple to use.
Unfortunately the TCU still needs to be bench flashed or sent to ECC for tuning. The TCU comms protocols for my vehicle aren't available yet to be flashed via dongle.
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