04-06-2018, 12:39 AM | #155 |
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I ran additional logs on the build I had for the dyno run and sent them off. I then flashed a new build and was able to run logs tonight. Terrible weather and road conditions, but just wow... on the longer pull, I got tail end wiggle coming out of third approaching high 5000 RPM, and got over 6k (but couldn't hit 7) due to conditions. Quick log review shows 17.8lbs psi on the third pull.. and holy crap she feels it! I see a suspension upgrade in the next few months for sure the way this is going! Just amazing honestly and I will need dyno or track time to safely find the limits.
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04-06-2018, 01:56 AM | #156 | |
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04-06-2018, 09:44 AM | #157 | |
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04-06-2018, 10:00 AM | #158 | |
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The runs last night were really impressive and flash back moments to driving my buddies F80 M4.. yes, that is a raw beast, but when my 435i is starting to remind me of the couple of drives in that, GREAT things are happening.
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04-06-2018, 10:40 AM | #159 |
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We might hit 100 next week. Rain is such a rare occurrence that many of stay home in fear. In a couple of months I'll be considering moving up your way.
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04-06-2018, 10:43 AM | #160 |
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We all have our weird stuff.. if AZ folks stay home if it rains, WA folks FREAK THE !#$!#@ out at like 2 inches of snow on the ground, and then drive either 1.5mph with hazards on, or 80mph on freeway off ramps and do confused interviews on the news later on why they ended up on the roof.
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04-06-2018, 12:04 PM | #161 | |
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04-06-2018, 11:50 PM | #162 |
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Ok.. so I have been digging across the forums, and Google-Fu, and not come up with any concreate answer so asking here:
What should I consider too high for catalyst temps? I am still running factory cats of course, and am waiting on the AA high flow DP. I also am working on making sure I am getting ACCURATE stats through Torque Pro, pulling the right info in the right way. That said, I am looking at the PID "Catalyst Temperature Bank 1, Sensor 1" and have that logged for the last couple of runs, I have done. I ran logs with that PID on my dyno build and saw temps as high as 1511F, on my couple of street runs, to gather data, 15.2 max turbo. I then flashed to the new more aggressive build where I saw as high as 17.8lbs and now catalyst temps as high as 1608F. They came off quickly as I backed off, but should I be concerned? Searching around I found E90s talking about 1100s being average driving, and spikes as high as 1600, but didn't find anything outright for F32s. I know I have about max back pressure possible right now with all of the upgrades above the factory DP, but am I at risk here? I DO NOT want to tear my car up.. I cannot afford a motor, and am MORE than willing to back off substantially until I replace my DP if needed. thoughts?
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04-07-2018, 04:24 AM | #163 | |
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Ususally if I remember right 1300 degrees was usually the highest safe value but I am going to double check. I think it’s time to go high flow cat or cat less to protect those pistons at those boost levels. Google safe egts!! Be easy and I would lower the boost or take it easy till you change the catalyst. The stock cat may not be able to handle the tune/boost under sustained WOT causing high temps.
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04-07-2018, 09:53 AM | #164 |
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I have a Scangauge that has programmable settings for Cat Temp. Those settings don't always work for all vehicles but I'll try them later today and see if I can get some readings from my car.
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04-07-2018, 09:54 AM | #165 | |
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Still all stock or flashed yet? Worst case I could flash back to full stock, take readings, repeat with the latest build etc.
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04-07-2018, 10:43 AM | #166 |
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AA Stage 1+ tuned. I was going to suggest you try taking the readings on stock as well as your original AA tune for comparison. If I am able to get the Scangauge to work, it doesn't have logging capability so it will depend on my being able to spot the peak temp while under full boost. Obviously not the ideal. I will give it a shot in a couple of hours.
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04-07-2018, 11:26 AM | #167 | |
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Candidly I just really dont want to screw up my car.. I want my car tuned up which it seems it has a TON of ceiling, but not to the breaking point.
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04-07-2018, 11:33 AM | #168 | |
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04-07-2018, 11:37 AM | #169 |
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Won't hurt and will tell you a whole lot.
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04-07-2018, 11:38 AM | #170 | |
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04-07-2018, 11:42 AM | #171 | |
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04-07-2018, 12:03 PM | #172 |
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Well, no luck. I tried all 8 possible settings for Cat Temp and none of them worked. I may need to update the firmware on the Scangauge but that means taking it to them (they are local). Maybe next week. Sorry.
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04-07-2018, 12:39 PM | #173 |
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Anyone consider getting the Simon 2 cable for datalogging? It's like 45.00 and works.
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04-07-2018, 12:57 PM | #174 |
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Found this page that says that a 'thermal failure' will set a P0420 code. Since you've only seen the high temps in short runs I doubt you've set a code.
http://www.catcoglobal.com/assets/fi...ld%20final.pdf Also found this: Typically, converter temperatures will not exceed 1200º F on a properly running engine. Periodic operation above 1600º F can negatively affect the precious metals coating on the substrate, reducing its efficiency. Excessive temperatures can reduce the converter's durability, or - if high enough - destroy the converter's matting or substrate. on this page: http://www.walkerexhaust.com/support...er-temperature Sounds like your temps are at a problematic threshold. I would guess that something like a track day might cook your cats. Occasional spikes that high are probably safe, but I'd check logs running at less than max boost to see if you're in the safe area (didn't go back to see if you'd done that). Also, if nobody else bites the bullet I might order the Simon 2 cable. What's another $45 at this point...
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04-07-2018, 01:04 PM | #175 |
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I am really fighting with Torque Pro.. the default PIDs seem to work ok, but have really kicked over a rock in trying to find expanded PIDs.
*IF* I Can get it all worked out, proper custom init string, and then the various BMW specific pids, this may work great, but really painful at the moment. I tried with a customized PID list, and only a couple of the sensors returned values, and all of them looked off. The Torque Pro forums are not great at all, and that is putting it mildly.
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04-07-2018, 01:09 PM | #176 | |
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