Eurocharged tune questions. V3 to V4 improvements?
https://mbworld.org/forums/c450-c43-...rocharged.html
https://www.eurocharged.com/ecutunin...-software-2015
Vlad K provided me with a dyno chart V3 vs V4.
V3 (Red)- 387 HP at 5150 and 420 at 3910
V4 (Green)- 393 HP at 5860 and 475 at 3320
Got same 1/4 times and trap speed but better 0-60 , obviously that probably just a better launch.
But I've done an OPF delete which could release 15whp easily- they create a lot of back pressure. Similar results on the B58 in the Supra tuned by Litchfield.
Got same 1/4 times and trap speed but better 0-60 , obviously that probably just a better launch.
But I've done an OPF delete which could release 15whp easily- they create a lot of back pressure. Similar results on the B58 in the Supra tuned by Litchfield.
Those filters are going to cause all kinds of issues for sure!
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Vlad K provided me with a dyno chart V3 vs V4.
V3 (Red)- 387 HP at 5150 and 420 at 3910
V4 (Green)- 393 HP at 5860 and 475 at 3320
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Honestly the more I look at the dyno chart I just posted compared to the dyno charts I linked to the less this makes sense to me. I will chalk it up to different cars and weather conditions.
He didn't say if it was post or pre facelift.
Last edited by G_MAN_NH; Dec 23, 2019 at 07:10 PM. Reason: added facelift info
V4 improvements. Slight increases in torque and Horsepower over V3. More linear power under the curve and some trans changes for shifting and overheating. Refined power on throttle feel.
My thoughts on the above information. It looks like they were able to get rid of the dips in the torque curve around 3k rpm and also carry hp further into the rpm range getting rid of the dip around 5-6k rpm. I didn't realize they were programming the TCU unless somehow they made changes to the transmission behavior elsewhere.
V4 improvements. Slight increases in torque and Horsepower over V3. More linear power under the curve and some trans changes for shifting and overheating. Refined power on throttle feel.
My thoughts on the above information. It looks like they were able to get rid of the dips in the torque curve around 3k rpm and also carry hp further into the rpm range getting rid of the dip around 5-6k rpm. I didn't realize they were programming the TCU unless somehow they made changes to the transmission behavior elsewhere.
Vlad K provided me with a dyno chart V3 vs V4.
V3 (Red)- 387 HP at 5150 and 420 at 3910
V4 (Green)- 393 HP at 5860 and 475 at 3320
They said for some reason the 19’ are making less then the previous years. There is a pretty sharp power drop off in the higher rmp range. They said there may be something extra added in terms of a filter or something in the exhaust that is too restrictive.
im taking my car back later this week for them to take a closer look and continue the development on the 2019. Would love the crack the 400whp on this car.
They said for some reason the 19’ are making less then the previous years. There is a pretty sharp power drop off in the higher rmp range. They said there may be something extra added in terms of a filter or something in the exhaust that is too restrictive.
im taking my car back later this week for them to take a closer look and continue the development on the 2019. Would love the crack the 400whp on this car.
I am also waiting for this to be “cracked” before getting the tune.
As I am out of country, there’s no way I can get EC to tweak my tune like you can. For me it’s downloading the tune off site, so it’s important to get the right tune the one time.
Please keep us apprised, we 2019 owners are depending on you! Haha.
Thanks my man.
They said for some reason the 19’ are making less then the previous years. There is a pretty sharp power drop off in the higher rmp range. They said there may be something extra added in terms of a filter or something in the exhaust that is too restrictive.
im taking my car back later this week for them to take a closer look and continue the development on the 2019. Would love the crack the 400whp on this car.
Mine was fitted with EU Mandatory OPF in the exhaust midsection which create a lot of back pressure in the exhaust.
This plus the fact that the tuners are still using maps for the Pre FL on the facelift cars- just tweaked, is the reason they're not getting the full potential out of them yet.
However I know US cars do not have OPF fitted and some one with a Renntech tune made the same torque but 400whp on a 2019.
I have since deleted my OPFs and got a V4 map but yet to do a new dyno run.
However my dragy times are the fastest I've seen for a tune only estate- 3.50 and 11.81 seconds 0-60 mph and 1/4 mile.
Looking forward to a new dyno and maybe see if they can squeeze any more power from it.
Mine was fitted with EU Mandatory OPF in the exhaust midsection which create a lot of back pressure in the exhaust.
This plus the fact that the tuners are still using maps for the Pre FL on the facelift cars- just tweaked, is the reason they're not getting the full potential out of them yet.
However I know US cars do not have OPF fitted and some one with a Renntech tune made the same torque but 400whp on a 2019.
I have since deleted my OPFs and got a V4 map but yet to do a new dyno run.
However my dragy times are the fastest I've seen for a tune only estate- 3.50 and 11.81 seconds 0-60 mph and 1/4 mile.
Looking forward to a new dyno and maybe see if they can squeeze any more power from it.
One thing to note - the OP is probably on V4 too. So maybe there might be not much difference in the end, I think V4 differences to V3 are mainly in the low end? I could be wrong.
Yes its supposed to be smoother. With the smallish turbos on the M276 massive top end gains aren't possible. But then that's why the low -mid range torque is so good and comes in so quick. Especially when tuned, it actually behaves more like a big displacement NA engine.
Mine was fitted with EU Mandatory OPF in the exhaust midsection which create a lot of back pressure in the exhaust.
This plus the fact that the tuners are still using maps for the Pre FL on the facelift cars- just tweaked, is the reason they're not getting the full potential out of them yet.
However I know US cars do not have OPF fitted and some one with a Renntech tune made the same torque but 400whp on a 2019.
I have since deleted my OPFs and got a V4 map but yet to do a new dyno run.
However my dragy times are the fastest I've seen for a tune only estate- 3.50 and 11.81 seconds 0-60 mph and 1/4 mile.
Looking forward to a new dyno and maybe see if they can squeeze any more power from it.
I am also waiting for this to be “cracked” before getting the tune.
As I am out of country, there’s no way I can get EC to tweak my tune like you can. For me it’s downloading the tune off site, so it’s important to get the right tune the one time.
Please keep us apprised, we 2019 owners are depending on you! Haha.
Thanks my man.
When I brought the car in I though the tune was fully developed on the ‘19, so was surprised when they showed me the lower numbers. It was the main reason I paid for the tune to get the 400+whp most pre ‘19s are making with tune alone. Anyways, I’m not too far from EU so bringing my car back for them to tweak is not a huge issue aside from the time waiting.
really hoping they can figure it it out and crack the 400mark. The graphs he showed me show the ecu power target on the high end, but actual was dropping off around 5500-7000rmp.
still really happy With the low end power/torque right now. It a daily driver so not racing the car.
Mine was fitted with EU Mandatory OPF in the exhaust midsection which create a lot of back pressure in the exhaust.
This plus the fact that the tuners are still using maps for the Pre FL on the facelift cars- just tweaked, is the reason they're not getting the full potential out of them yet.
However I know US cars do not have OPF fitted and some one with a Renntech tune made the same torque but 400whp on a 2019.
I have since deleted my OPFs and got a V4 map but yet to do a new dyno run.
However my dragy times are the fastest I've seen for a tune only estate- 3.50 and 11.81 seconds 0-60 mph and 1/4 mile.
Looking forward to a new dyno and maybe see if they can squeeze any more power from it.



