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Old Book
by Morganmike - 21/09/26 07:54 PM
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Forums39
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Jun 14th, 2026
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Joined: Jul 2007
Posts: 27,864 Likes: 775
Member of the Inner Circle
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Member of the Inner Circle
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Rev hang sadly as they stopped the ECU upgrade & no longer provide it. But some cars have horrible rev hang & others don't.
JohnV6
2022 CX Plus Four
2025 Renault Scenic Alpine etech "Yvette"
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Joined: Nov 2015
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Just barreling along Needs to Get Out More!
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Just barreling along Needs to Get Out More!
Joined: Nov 2015
Posts: 8,728 Likes: 514 |
Welcome to TM Jan, from another 3.7 owner
Some seem to suffer more than others, I don't think the factory offer the ECU upgrade anymore, some say the Dual Mass flywheel contributes to rev-hang & some 3.7's can have that or the solid Aero Racing version
I'm sure you are an accomplished driver, but with damp roads I would be cautious & change up the gears early, as the upper rev range contributes to rev-hang too
Jon M
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Joined: May 2010
Posts: 9,562 Likes: 135
Needs to Get Out More!
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Needs to Get Out More!
Joined: May 2010
Posts: 9,562 Likes: 135 |
I think it is a bit odd that MMC have stopped the upgrade completely. Do dealers have the option to continue offering it?
I suppose as the car is no longer an option they would slim down trad options but surely letting dealers pick it up would be a good idea?
Plus Four MY23 Furka Rouge
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Joined: Jan 2021
Posts: 36
Just Getting Started
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Just Getting Started
Joined: Jan 2021
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Thanks for your welcome and answers. That´s a pitty. Reduces the pre fun. I´m looking forward to a sportscar. Even at high revs. I hope it won´t be worst.
Best regards,
Jan
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Joined: Nov 2015
Posts: 8,728 Likes: 514
Just barreling along Needs to Get Out More!
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Just barreling along Needs to Get Out More!
Joined: Nov 2015
Posts: 8,728 Likes: 514 |
I think it is a bit odd that MMC have stopped the upgrade completely. Do dealers have the option to continue offering it?
I suppose as the car is no longer an option they would slim down trad options but surely letting dealers pick it up would be a good idea? My understanding is that it was not a re-flash, but a completely different ECU branded as Aero Racing and they only had a few The std ECU can't be 'cracked' partly because when the car is first switched on MMC don't input the chassis nr into the ECU data and it can't then be read or flashed, apart from basic fault codes There are a couple of reputable Mog specialists who have been trying to sort this...and after some years still we wait, so it can't be easy to crack
Jon M
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Joined: Jul 2007
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Member of the Inner Circle
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Later ones seem better to me. But with or without the ECU upgrade the gearbox likes to be used slowly.
JohnV6
2022 CX Plus Four
2025 Renault Scenic Alpine etech "Yvette"
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Joined: Aug 2013
Posts: 15,794 Likes: 15
Formerly known as Aldermog Member of the Inner Circle
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Formerly known as Aldermog Member of the Inner Circle
Joined: Aug 2013
Posts: 15,794 Likes: 15 |
Given the number of these engines made and sold in the USA surely there are specialists there that may have already developed programmable ECUs for the 3.7L Cyclone engine! I found this one in the UK... https://www.oc-motorsport.co.uk/pro...-cyclone-e6-2016-evo-chips-stage-1-remapYes, it is a Transit engine... it seems. If so the very, very low 1st gear makes sense....
Last edited by Peter J; 17/02/21 04:58 PM. Reason: Addition
Peter,
66, 2016 Porsche Boxster S
No longer driving Tarka, the 2014 Plus 8...
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Joined: Jul 2007
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Member of the Inner Circle
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Peter,
not so simple as I understand it. MMC piggy backs their ECU onto the Ford one & then lock them. Without the MMC code you can do nothing.
JohnV6
2022 CX Plus Four
2025 Renault Scenic Alpine etech "Yvette"
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Joined: Jul 2007
Posts: 27,864 Likes: 775
Member of the Inner Circle
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Member of the Inner Circle
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Posts: 27,864 Likes: 775 |
I dug out the bill for my ECU upgrade. The car was 11 months old in 2015 when this was done ![[Linked Image]](https://www.tm-img.com/images/2021/02/17/20210217_173110.jpg)
JohnV6
2022 CX Plus Four
2025 Renault Scenic Alpine etech "Yvette"
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Joined: Aug 2013
Posts: 15,794 Likes: 15
Formerly known as Aldermog Member of the Inner Circle
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Formerly known as Aldermog Member of the Inner Circle
Joined: Aug 2013
Posts: 15,794 Likes: 15 |
Peter,
not so simple as I understand it. MMC piggy backs their ECU onto the Ford one & then lock them. Without the MMC code you can do nothing. So what does the MMC ECU actually do? Probably only drives the dash display. Would it be possible to replace the Ford and MMC ECUs with a new unit?
Peter,
66, 2016 Porsche Boxster S
No longer driving Tarka, the 2014 Plus 8...
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