09-19-2013, 12:53 AM | #23 | |
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Only at home, where the garage is at a lower level than the street, when starting from stand still to rear But for information, all my bmw have done that because i'm just using my cluth to move and no gas, this is because i can't arrive to fast on the street if i don't want to loose my trunk in a farm tractor ;-) And effectively the SAC system is giving more problem than solution on high power BMW engine. That's right. |
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09-19-2013, 09:26 AM | #24 | |
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First of all, if everything was right with that dyno you shouldn't be seeing just 336 hp while producing 600 nm which is 442.5 lb.ft of torque. That is what tuned 1Ms like Stage 1 Evolve or GIAC had to offer, while at the same time producing significantly more hp, around 400 hp. Those stock numbers of 336 hp and 600 nm (442 lb.ft) are wildly different than anything else I have seen or heard. ECU's learning and adapting abilities will not make into a dyno run since there is only one correct way to "drive" the car while it is on the dyno and peak hp/tq would not be altered from factory numbers. The car would give you what you want, to a point, while driving the way you drive but not on a properly executed dyno, it is not a telephatic unit that remembers your driving habit and delivers your prefered output. I also want my car to produce more hp but even if I drive it like a bat out of hell it is not going to become a 400 hp engine with lower torque, I will just go to service more often. I still feel like your stock run was not executed correctly, something was off.
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"The mark of a great car is one whose overall competence exceeds what you should expect from its individual components and the 1M does just that", Chris Harris.
BMW 1M-SOLD-: TECH: Evolve Race+N55mids, Evolve IC, Michelin PSS, ER cp, aFe filter, CDVx, Vorshlag camber plates, BMS OCC EXTERIOR: trunk spoiler, blacklines, black grills, IND goodies INTERIOR: Alcantara steering wheel, steel pedals, custom mats, MPower e-brake. Last edited by ozinaldo; 09-19-2013 at 09:36 AM.. |
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09-20-2013, 04:04 AM | #25 | |
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09-20-2013, 04:28 AM | #26 | |
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yeap! i understand that. when i get the biting point and slowly let the clutch pedal go, the car vibrates a little before engaging. |
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09-20-2013, 04:30 AM | #27 | |
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I don't think it's a DMF failure, because we checked the DMF and found that it was in a great shape before installing the Sach Performance clutch. It might be not properly run in yet. i'm not sure actually. |
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09-20-2013, 06:32 AM | #28 | |
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Last edited by xavierbest; 09-20-2013 at 06:56 AM.. |
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09-20-2013, 07:23 AM | #29 |
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Try to check like on this vid
if you hearing same chatter on when shutting down the engine be prepared to replace clutch and DMF again... |
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02-11-2015, 07:45 AM | #30 |
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Hello, My car was 5000 Km when begin having clutch slipping. We replace the clutch with Sachs performance clutch and pressure plate. This kit lived for 10000 km then begin to slip again. My car is only 382 hp but deliver >630nm of torque which is a lot. After consulting expert into tuning bmw car for rallying they say me "once a clutch have slipped just one big taim the heat generated will have curved the flywheel even if you can't notice it. After this the friction is never optimal again." So, when upgrading/replacing a clutch (& pressure plate) you need to replace the flywheel too ! It cost me 2900 euros to do the stuff. ECU remapped so no warranty but by the way the car is 3 years old so warranty is obsolete AND clutch are most of the time not taken under warranty. Now this is the joint before the differential who is failing, loosing oil and it smell like hell when riding. Giving me clutch problem idea but no, this is not this new one. Mods are: - CDV removed - ECU remap to 382hp/>630nm torque - Air Filter - Goodridge brake line - Pagid Yellow brake pads - Sachs Performance Organic Clutch disk + High pressure plate (rated to 600nm) |
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02-11-2015, 09:29 PM | #31 | |
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Someone somewhere makes a clutch that will hold your torque. I would go well over your power output on the clutch rating so that the next one will last. |
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