02-21-2022, 05:32 PM | #200 | ||
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I also replaced a good portion of the cooling system and use a CSF radiator as well. |
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02-21-2022, 10:01 PM | #201 | |
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Nice..i was thinking do i need to upgrade the radiator as well...but as the rebuild is quite costly, decide to put that on hold first.. |
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02-23-2022, 08:34 AM | #202 | |
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I had heard it was not possible to oil starve an N55 F30 on street tires, but I managed to do coming through the Chute at Summit Point. Before I knew what was happening, the car was pulling power, threw a rod through the block, and the engine caught fire. I was THIS close to upgrading to the M3 oil pan and pumps before this event, but the cost was definitely a deterrent. I was on the fence for a while with either rebuilding the car with a used engine, or selling the chassis and getting started with a apec e46 build. In the end I chose the latter. I will truly miss this car.
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02-23-2022, 09:38 AM | #203 | |
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Yeah man, was lucky not to seize the engine. But it still need a new crank, which was lucky my mech was able to find 1. Now i do actually have a similar dilemma as whether to rebuild it with the m3 pump and pan as well, but the cost is really high. MMR baffle is also one of my considerations as it is much more cost effective. The car runs very well and and handle brilliantly with ohlins on the track, but am now thinking whether should i just rebuild it back to stock and get a different car for track as to avoid such issues. |
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02-23-2022, 11:47 AM | #204 | |
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This car took me from my first DE, all the way through being an instructor, and I enjoyed every minute of it on track; no regrets. If my goal were to continue to run DEs and instruct - without pushing the car to its outer limits on the regular - it's still a solid option for that (with the M3 oil pan and pumps of course!). But I am interested in continuing to push my pace, and would actually like to get into club racing, so naturally I came to the conclusion that spec e46 made more sense than a costly rebuild.
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02-24-2022, 12:26 PM | #205 | |
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02-25-2022, 10:41 PM | #206 | ||
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How many miles were on your engine? |
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02-27-2022, 11:15 PM | #207 |
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For those of you overfill 1 qt of engine oil, how often do you do that? I only go to track days like 2 to 3 times at most a year, and if I overfill it in the 1st track day of the year, do I need to overfill it again before the 2nd track day? This sounds a bit excessive and having too much engine oil isn't good either.
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02-27-2022, 11:34 PM | #208 | |
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03-08-2022, 09:41 AM | #209 | |
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04-25-2022, 05:02 PM | #210 | |
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146,000 miles, 8SAT, M Sport, RWD, stock (stage 0) tune except for BM3 CEL delete. Other related mods may have been: - Wagner Tuning Competition Intercooler Kit EVO 2 - ER Chargepipe - ER TIC - CSF oil cooler (requires additional oil due to extra volume that is added to the system) - CSF radiator - Mosselman Oil Thermostat Handling/suspension mods: - F80 control arms - solid rear subframe bushings - Millway street camber plates - Ohlins R&T coilovers - M Performance LSD - square 255/40/18 Goodyear F1 Supercar 3 tires (220 TW) I've always had a 5,000 mile OCI since the car was delivered and I was running Castrol Edge 5w-40 oil which I usually overfill by .5 quarts due to track use. I looked at the data for the rest of my sessions and oil temps never rose above 250F with this setup which means that the CSF oil cooler and Mossleman oil thermostat should have had sufficient capacity to cool the engine oil as long as the engine was functioning properly. My guess is that the failure happened about 1-2 laps before my engine seized, locking up my rear wheels, and causing me to have some playtime in the infield after exiting Turn 10. As to what was the root cause of the failure. It's hard to tell because the engine did have 146,000 miles on it. It's certainly not a new engine by any stretch. Would an M oil sump system have saved it? I don't know because it's lasted for so many miles. For an engine that fails much earlier based on mileage, perhaps. I think someone who is planning on tracking a car with a non M car N55 engine, it's worth having the rod bearings inspected and replaced at a certain interval. Last edited by Polo08816; 04-25-2022 at 05:11 PM.. |
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04-25-2022, 06:35 PM | #211 | |
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What are your plans? New engine build?
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04-26-2022, 03:57 AM | #212 | |
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04-26-2022, 05:10 AM | #213 |
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Ooo I saw you said you need additional oil as you have the csf oil cooler and you also overfill by 0.5quart. Does that mean you are filling 7.5L per oil change or 8L?
I’ve assumed that the additional oil for the oil cooler is only needed when you add the cooler the first time, or drain the oil cooler. For all fills after that, I assumed 7L is a full change. Interested to see your thoughts |
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04-26-2022, 05:13 AM | #214 | |
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04-26-2022, 07:18 AM | #215 | |
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My factory fill was around 6.75 quarts it seemed to reach max level on the digital oil measurement. CSF cooler would take it to around 7.25 quarts on initial fill. I usually ended up putting in about 7.5 quarts on most oil changes. I think that even if you overfilled by whatever amount after that, you would still drain out the excess on the next oil change because the plumbing for the oil cooler would take a fixed volume. I don't think the amount I was overfilling by would have been catastrophic - because it would have blown up at some point during the 2021 track season. I had for about 8 events since the start of the 2021 track season. |
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04-26-2022, 07:48 PM | #217 |
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Well, please keep us informed as you undertake it - if you don't mind. Would love to watch the progress and learn from it.
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04-26-2022, 07:50 PM | #218 |
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Yeah, watching the progress in the other thread was inspiring for sure. Seeing what you guys did and how it went was very helpful.
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04-29-2022, 04:56 AM | #219 | |
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Wast this a downhill? Can't tell.. |
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04-29-2022, 05:40 AM | #220 |
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The oil on the track indicated that it was right at at the top of the hill. We were about to go downhill - well, we did go downhill. The rear axle locked up when the engine seized and we spun into the infield. It's really hard to countersteer because you lose steering assist.
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