MM2 - Printable Version +- ZEZ AUTO (https://www.zezauto.com) +-- Forum: Heavy Vehicles (https://www.zezauto.com/Forum-Heavy-Vehicles) +--- Forum: Heavy Vehicle Tuning (https://www.zezauto.com/Forum-Heavy-Vehicle-Tuning) +--- Thread: MM2 (/Thread-MM2) Pages:
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MM2 - RaZoR - 11-26-2017 I’ve heard that the MM2 is good on the CM871, but I’ve also heard it’s bad according to other people’s. What’s the truth out there? RE: MM2 - Rocinante - 11-26-2017 (11-26-2017, 11:14 AM)RaZoR Wrote: I’ve heard that the MM2 is good on the CM871, but I’ve also heard it’s bad according to other people’s. If I were you I’d look over what is being changed in that overlay file and make a decision for yourself. You could also strike up a conversation with the creator, Rawze. I don’t think he’s on this forum but he has his own forum. I personally haven’t seen a problem in the later versions. Earlier versions tricked a sensor which wasn’t the best method. RE: MM2 - Lucifer - 11-29-2017 (11-26-2017, 11:16 AM)Rocinante Wrote:(11-26-2017, 11:14 AM)RaZoR Wrote: I’ve heard that the MM2 is good on the CM871, but I’ve also heard it’s bad according to other people’s. I couldn't have answered better myself. MM2 isn't bad provided your using the latest version on the correct engine. RE: MM2 - DieselDwarf - 12-01-2017 I run it and have no problems RE: MM2 - Lucifer - 01-07-2018 (12-01-2017, 04:52 PM)DieselDwarf Wrote: I run it and have no problems Just be careful. Older versions had some whacked timing in them. So bad it makes me cry at night. RE: MM2 - cumapart - 01-08-2018 Mm2 is the only decent tuning I know, I am not saying there aren’t other individuals who can’t tune with out the guidelines of milk money, all I’m saying is mm was the first proper demandate that I put in my truck, no the first revisions probably were not perfect but I can tell you this, I would much rather run them then a big name delete company tune, please don’t delete this forum master, I know who I give credit for the original best demandate, he might not be a part of this forum, it is acceptable to fine tune behind him and call it your own, but the guy deserves some respect RE: MM2 - Lucifer - 01-08-2018 (01-08-2018, 03:07 AM)cumapart Wrote: Mm2 is the only decent tuning I know, I am not saying there aren’t other individuals who can’t tune with out the guidelines of milk money, all I’m saying is mm was the first proper demandate that I put in my truck, no the first revisions probably were not perfect but I can tell you this, I would much rather run them then a big name delete company tune, please don’t delete this forum master, I know who I give credit for the original best demandate, he might not be a part of this forum, it is acceptable to fine tune behind him and call it your own, but the guy deserves some respect I didn’t delete it, just hid for review. We try to be very careful when giving tuning advice. I’m not saying MM2 is bad. We just have to be careful people don’t start pushing old versions of MM2 to the wrong CPLs. I’ve spent hours pouring over various overlays. Because MM2 was released for the 871 and the 2250 we need to distinguish which one we are talking about so others don’t get confused. RE: MM2 - cumapart - 01-08-2018 Makes sense, because I have seen the small cpl’s have crazy timing stock on the 2250, where as the bigger cpls it’s backed off some, probably due to bigger injectors, am sure it’s simuler on the 871 as well, but like I said I believe these newer commen rail with the sharper spray angle injectors and higher compression ratios not to mention using egr to delay injection timing, the newer 2350 and x15’s in my opinion are finicky with timing, disable egr and pulse injection and you could be flashing the cylinders meaning, instead of the flash happening on the piston crowns it’s now happening earlier and flashing the liners before the piston comes up on the compression stroke, yeah I know what your thinking, 4 cycle Diesel, intake, compression, fire, exhaust, but the reality is most engines inject fuel on the late stages of the compression stroke to mix the fuel air, the problem is with higher injection pressures sharper spray angles and higher compression ratios and then using egr to not only reduce peak cylinder temps but also now delaying injection timing, we now have a very touchy finicky engine that is sensitive to being demandated, just killing the egr will advance the timing to almost or most certainly unsafe levels, disable pulse injection and it gets worse, ........... you see were this is going droped liners blown head gaskets and cracked heads not to mention fuel impingement RE: MM2 - Lucifer - 01-08-2018 (01-08-2018, 03:35 AM)cumapart Wrote: Makes sense, because I have seen the small cpl’s have crazy timing stock on the 2250, where as the bigger cpls it’s backed off some, probably due to bigger injectors, am sure it’s simuler on the 871 as well, but like I said I believe these newer commen rail with the sharper spray angle injectors and higher compression ratios not to mention using egr to delay injection timing, the newer 2350 and x15’s in my opinion are finicky with timing, disable egr and pulse injection and you could be flashing the cylinders meaning, instead of the flash happening on the piston crowns it’s now happening earlier and flashing the liners before the piston comes up on the compression stroke, yeah I know what your thinking, 4 cycle Diesel, intake, compression, fire, exhaust, but the reality is most engines inject fuel on the late stages of the compression stroke to mix the fuel air, the problem is with higher injection pressures sharper spray angles and higher compression ratios and then using egr to not only reduce peak cylinder temps but also now delaying injection timing, we now have a very touchy finicky engine that is sensitive to being demandated, just killing the egr will advance the timing to almost or most certainly unsafe levels, disable pulse injection and it gets worse, ........... you see were this is going droped liners blown head gaskets and cracked heads not to mention fuel impingement They (Engine Manuf) did this for the very reason to comply with high regulation from the EPA. They had to make it difficult to delete these various emission modules. Everything is a needle-size adjustment. It has to be just right or you’ll very likely be dropping some liners, especially on the 2250/2350. Hell, they have liner issues without a demandate. I won’t even get into the amount of turbos I’ve seen blown because guys just go file flashing trigger happy. Give someone a copy of Calterm and they will march off and start tuning all their friends trucks. All the sudden they’re tune gods. RE: MM2 - webmaster - 02-17-2018 (02-17-2018, 12:40 PM)MaraJin Wrote: Some very good words spoken here. Here are my thoughts... We welcome all information and I personally thank you for the information you have provided. We strive to be as open as possible and will not fall to greed. We understand that the Programmers here sometimes need monetary support and we leave it up to them in that regard. We want to be different, we do not support greed as other forums have fallen victim to. 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