01-13-2024, 02:00 PM | #1 |
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Datalog feedback: m850 custom tune
https://bootmod3.net/log?id=6598baeecd76154fc89b0115
Timing on cylinder 3 seems to be lagging. Not sure if this is common in n63/s63 but the rest of the range, the timing comes back in line when not wot. What do you guys think? 200 cell hfdp Bmc filters Ngk .24 M8 comp exhaust Custom tstat |
01-17-2024, 07:57 PM | #3 | |
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Drives: 2022 M8cs
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Most here wouldn’t think to fuck with their car beyond a plug ‘n play Racechip let alone put their car on the track. I’m going to generalize, but it’s the older generation that can afford this car, M8 comp I’m talking, and we’re just getting too old to fuck with things anymore. Then not many of us would know how to answer you mate, me included. I would never think to have the shop install a coolant reservoir but I’m too impatient to dick around. I have other things to do with my dick. Gotta think whether or not you and I are the dumbasses. lol. We can include GreatM8 in this group as he had done lots to his beast on his own. We lost him last year. But that said, these people are fuckin’ awesome. Very classy group of people. Last edited by Dr Thrillride; 01-17-2024 at 08:10 PM.. |
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01-18-2024, 12:16 PM | #4 |
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I am not an expert, there is indeed some differences with some cyls but its able to compensate enought to not register a knock. Are you running on 93?
I would say you are OK. |
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01-18-2024, 12:37 PM | #5 |
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Just seeing this for some reason. I don't think anyone can come up with a direct answer for you but back when before much of the turbo cars lag cylinder was mostly due to flow restrictions with say valve timing or failed hydraulic lifter. On the other hand with newer vehicles and the way your describing the return of timing my money would be on not enough fuel getting in or is being restricted. One thing I learned quickly about direct port and fuel injection is secondary pumps and/or replacement of much higher flow rates solve a TON of potential problems. That said not like you did much work to your ride at all so I would wonder if that injector at WOT is not pumping correctly. Just food for thought.
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01-18-2024, 01:40 PM | #7 |
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Pull it and put into a injector tester. many shops have it but you will want to pull to for comparison as well.
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05-07-2024, 02:55 PM | #8 | |
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I have it if you need answered still . Changed tunes (and tuner) and he cleared it up for me. Just let me know and I'll paste his answer on #3 -3 degree timimg difference. |
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