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Wales
by Joske Vermeule, September 1
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Forums39
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Jun 14th, 2026
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Joined: Feb 2019
Posts: 3,857 Likes: 2
Talk Morgan Addict
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Talk Morgan Addict
Joined: Feb 2019
Posts: 3,857 Likes: 2 |
Stephen,
Do you have the G56 exhaust on your three wheeler No, i have AR.
2019 M3W Sold and is now in Las Vegas enjoying the showgirls :-)
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Joined: Feb 2019
Posts: 3,857 Likes: 2
Talk Morgan Addict
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Talk Morgan Addict
Joined: Feb 2019
Posts: 3,857 Likes: 2 |
My car has a similar set up to yours Stephen, G56 exhaust and filter, 569 cams with roller rockers. I must admit the 569 cams and rockers were certainly not essential but, to my mind at least, they do make for a smoother power delivery and a bit more "go" through the rev range if you want it. The economy hasn't been reduced by much if any, if you drive it modestly. Not sure about the Emerald ECU that you are using but the S&S one does have a rev limiter function, usually set for a soft cut at 5500rpm as standard I think but that can be reset to 5700 soft cut and 5800 hard cut to get the full safe limits.
I am goingbto be trying an S&S ecu tuned to Stage 2 by mmc but i doubt it will able to be adjusted.
2019 M3W Sold and is now in Las Vegas enjoying the showgirls :-)
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Joined: Oct 2007
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Learner Plates Off!
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OP
Learner Plates Off!
Joined: Oct 2007
Posts: 423 Likes: 2 |
They will provide a stage 2 tuned ecu, but it will be locked and non adjustable.
Lance
1981 Plus 8
2016 Three Wheeler
2022 Corvette Stingray Convertible z51
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Joined: Feb 2019
Posts: 3,857 Likes: 2
Talk Morgan Addict
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Talk Morgan Addict
Joined: Feb 2019
Posts: 3,857 Likes: 2 |
They will provide a stage 2 tuned ecu, but it will be locked and non adjustable.
That is exactly what I understood, but one could get lucky and they forget to lock it :-) They seem to forget a lot of other thing.
2019 M3W Sold and is now in Las Vegas enjoying the showgirls :-)
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Joined: Jul 2013
Posts: 3,733 Likes: 79
Talk Morgan Addict
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Talk Morgan Addict
Joined: Jul 2013
Posts: 3,733 Likes: 79 |
They will provide a stage 2 tuned ecu, but it will be locked and non adjustable.
However the basemap will be better suited to G56 exhausts and then the adaptive range should be able to cope with the more open exhausts.
Red Leader 
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Joined: Feb 2019
Posts: 3,857 Likes: 2
Talk Morgan Addict
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Talk Morgan Addict
Joined: Feb 2019
Posts: 3,857 Likes: 2 |
My car has a similar set up to yours Stephen, G56 exhaust and filter, 569 cams with roller rockers. I must admit the 569 cams and rockers were certainly not essential but, to my mind at least, they do make for a smoother power delivery and a bit more "go" through the rev range if you want it. The economy hasn't been reduced by much if any, if you drive it modestly. Not sure about the Emerald ECU that you are using but the S&S one does have a rev limiter function, usually set for a soft cut at 5500rpm as standard I think but that can be reset to 5700 soft cut and 5800 hard cut to get the full safe limits.
I am goingbto be trying an S&S ecu tuned to Stage 2 by mmc but i doubt it will able to be adjusted. Boy did spellcheck mess this up. I have no illusions that MMC will provide and ECU that is adjustable, but since I have the AR exhaust system the base maps should be closer than the G56 ECU base map, and the G56 is adjustable. So I am going to give the MMC/S&S ECU a try to find out the difference. Planenut, are you using the MMC ECU tuned for Stage2?
2019 M3W Sold and is now in Las Vegas enjoying the showgirls :-)
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Joined: Dec 2020
Posts: 106 Likes: 7
L - Learner Plates On
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L - Learner Plates On
Joined: Dec 2020
Posts: 106 Likes: 7 |
Stephen,
I’m curious about why you’re going to try to switch from the Emerald to an S&S ECU. Is there something the Emerald isn’t doing well? Just wondering as I haven’t yet installed cams and have the Emerald to pop in when I do the cams.
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Joined: Feb 2019
Posts: 3,857 Likes: 2
Talk Morgan Addict
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Talk Morgan Addict
Joined: Feb 2019
Posts: 3,857 Likes: 2 |
Stephen,
I’m curious about why you’re going to try to switch from the Emerald to an S&S ECU. Is there something the Emerald isn’t doing well? Just wondering as I haven’t yet installed cams and have the Emerald to pop in when I do the cams. I do not have the skill to work the program for tuning it. The tuner i had in mind went out of business between the time i ordered the ecu and the time i received it. Covid hit their business hard. The cold start needs to be turned leaner for sure. Once hot it starts and runs fine but cold it starts stumbles a bit on take off, like running with a choke engaged. Warm it at idle for a couple of minutes snd it works fine.
2019 M3W Sold and is now in Las Vegas enjoying the showgirls :-)
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Joined: Dec 2020
Posts: 106 Likes: 7
L - Learner Plates On
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L - Learner Plates On
Joined: Dec 2020
Posts: 106 Likes: 7 |
Makes sense. I haven’t looked into where to actually get a tune. I just kind of assumed since there are so many tuners in Southern California I’d be able to find one.
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Joined: Dec 2020
Posts: 106 Likes: 7
L - Learner Plates On
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L - Learner Plates On
Joined: Dec 2020
Posts: 106 Likes: 7 |
Stephen,
I’m curious about why you’re going to try to switch from the Emerald to an S&S ECU. Is there something the Emerald isn’t doing well? Just wondering as I haven’t yet installed cams and have the Emerald to pop in when I do the cams. I do not have the skill to work the program for tuning it. The tuner i had in mind went out of business between the time i ordered the ecu and the time i received it. Covid hit their business hard. The cold start needs to be turned leaner for sure. Once hot it starts and runs fine but cold it starts stumbles a bit on take off, like running with a choke engaged. Warm it at idle for a couple of minutes snd it works fine. I wonder if this is something g56 or emerald could potentially help with by sharing your screen with them?
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