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02-25-2011, 10:53 AM | #111 | |
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I think you and others are right, but as I mentioned earlier in the thread, I'm just not sure enough, I have yet to see a built motor clocked with thousands of miles on it, and from what I've seen in general with built motors on my friends cars, I'm just not sure I want to go that route. I'm actually getting a motor that is already assembled, Gintani just needs to install the TB's and accessories. I appreciate the offer!
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02-25-2011, 10:54 AM | #112 | |
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16 F82 M4 DCT - ZCP - JB4 - 556WHP / 570WTQ
08 E92 M3 DCT - Bolt Ons - 60-130MPH 10.71s - 11.88 @ 118MPH - 377WHP ESS VT2-625 SC 60-130MPH 6.80s - 11.30 @ 129.3 MPH 586WHP / 379WTQ ESS VT3-750 - 60-130MPH 6.14s - 10.81 @ 135.13 MPH 690WHP/463WTQ Shift-S3ctor E92 M3 - 1/2 Mile Trap Speed WR - 174.13 MPH |
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02-25-2011, 11:16 AM | #113 |
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How can that happen when the rev limiter kicks in at 8,400? Only way is a mechanical overrev on a stock car. And 300 rpm doesn't seem like much, but you're not talking a 7K redline here. At 8,400, it's already pushing the limits. If the engine had never been overrevved, then I'd be more worried. And yes, I fully understand the bearings are marginal on '08 engines; hope mine aren't bad, but that potential problem is what might push me to sell the car before warranty expires. We'll see.
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02-27-2011, 05:11 PM | #114 |
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Hey Drew,
Good to hear that Gintani is taking care of you. You ran a good chunk of miles and posted tons of races with their kit which shows how fast this kit is. Hope you guys get to the bottom of this soon and get your car back up and running. Anyone know if E85 conversion is doable on the S65? |
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02-27-2011, 07:19 PM | #115 | |
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8400RPM is not pushing the limit. There is the same sort off safety factor built into the S65's redline as there is on any other BMW engine. By the way, Rod Bearings are the same part number from 08 to present...... only the main bearings were changed midway through 08 production. Rod bearing part numbers for all years of E90/92/93 M3: 11247841703 Red ; 11247841702 Blue Crankshaft with bearings part numbers up to 10/08 : 11217841658 Ended ; After 10/08: 11210443639 There are Green, Yellow and Violet codes for the main bearings and Blue and Red codes for the rod bearings. All of the main bearing part numbers have two numbers for bearing shells, one for up to 10/2008 and one after 10/2008. The rod bearing numbers have no supercession at 10/2008 showing that they are indeed the same bearings that are in all S65's regardless of year. All of the color codes shows me that the cranks are measured and matched to sets of bearings before being shipped/installed in an engine. The fact that the crank and bearing are different don't necessarily mean the bearings were bad, it could just signify a change in supplier of the crank and bearings. Manufacturers change parts all the time and it is no big deal. Anyone with a 2008 shouldn't get overly worried about the change in the parts.
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02-27-2011, 07:58 PM | #116 | |
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I think the bearing issue is way over-stated on this forum.
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02-28-2011, 12:12 AM | #117 | |
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02-28-2011, 12:24 AM | #118 | |
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Last edited by LateBraking; 02-28-2011 at 12:37 AM.. |
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02-28-2011, 01:59 AM | #119 |
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Very few people have experienced it and very few more will experience it. Most of the people who have experienced it have been modified and detonation was most likely the cause. Like you said "people who know will know, and people who don't won't". Sadly the majority of people just don't know!
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02-28-2011, 03:09 AM | #120 |
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Until Gintani tears it down, all we can do is speculate. If detonation was a factor, it'll be apparent. If the rod was over-stressed and failed, it'll be apparent. If the bearings are wearing prematurely, it'll be apparent.
Until then, I'll pick a number between 1 and 10 and you all can argue exactly which number it is with this bizarre air of certainty... |
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02-28-2011, 12:09 PM | #121 |
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BMRLVR, the potential for bad main bearings in '08 cars (as well as some '11s) is REAL, as it has happened to several stock cars, so you can't say it's not an issue 'at all'. Granted, the chance of that happening is minimal, but it's there, whether you admit/like it or not. Am I paranoid about it? Of course not. Am I worried about it under warranty? Nope. Am I worried to keep car after warrant because of it? Yes, but mostly because the typical mileage where it surfaces is higher than I'll have when warranty runs out. But more than that, I worry that not even trained techs can catch many problems the M3 has and has had. Many dealers still don't get the idle valve issue right until the second or third time, and only because hundreds of other cars have had it. BMW did a poor job of designing the troubleshooting capabilities on this car. It's a major inconvenience under warranty. It'd be a nightmare without it. BUt sill considering keeping it; I'll evaluate that when the time comes in about 2 years. Later.
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02-28-2011, 01:11 PM | #122 | |
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Btw I said detonation was the probable cause.... And I still stand by it |
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02-28-2011, 01:20 PM | #123 |
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The S65 connecting rods are A LOT stronger than the pistons. If it were detonation it most likely would have cracked ring lands (ie: Tightie & Jon Martin's issues with GPower) .
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02-28-2011, 01:21 PM | #124 |
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I find it hard to believe That Gintani will post up pics or even disclose for that matter that is was caused due to Detonation ( that's if detonation was the cause ).... That's like saying the tune wasn't good ....
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02-28-2011, 01:44 PM | #125 |
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best of luck, subscribed to hear more updates
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02-28-2011, 02:50 PM | #126 | |
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16 F82 M4 DCT - ZCP - JB4 - 556WHP / 570WTQ
08 E92 M3 DCT - Bolt Ons - 60-130MPH 10.71s - 11.88 @ 118MPH - 377WHP ESS VT2-625 SC 60-130MPH 6.80s - 11.30 @ 129.3 MPH 586WHP / 379WTQ ESS VT3-750 - 60-130MPH 6.14s - 10.81 @ 135.13 MPH 690WHP/463WTQ Shift-S3ctor E92 M3 - 1/2 Mile Trap Speed WR - 174.13 MPH |
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02-28-2011, 04:05 PM | #127 | |
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Part of the solution on the E46 main bearing failure was to upgrade to the 10w60 TWS engine oil. I am willing to bet this was an attempt to get a but more oil pressure to ensure the oil film did not get pushed out of the bearings/journals after the engines were repaired changed. Another possible cause for the E46 and any current main/rod bearing issues are engines that slipped through the cracks with bearings that were too tight on the main and rod journals. If the oil clearance between bearings is insufficient it also can cause big problems. For how many E9X M3's there are out there the bearings can be considered a non issue. There have been extremely few issues compared to the number of cars in service. The M3 is a car that is built by people. It will never be completely trouble free since mistakes in assembly and measurements can be easily made. In fact it is an extremely reliable car. If main bearings/rod bearings were an issue than all of the cars running around with close to 50% additional horsepower over stock would have engines failed for long ago. The rod bearing/rod failure in this thread was due to high boost and use of meth injection instead of running lower boost that the engine could handle without detonating. I don't want to make this into a Gintani or AA bashing thread but running water/meth injection is a sign that you are running too much boost and your manifold temperature is too high. Any company that chooses to run a setup like this is going to suffer more failures down the road. |
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02-28-2011, 05:45 PM | #128 | |
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IMO people need to breathe a little and not speculate and let the facts speak for themselves. Once again Drew, hope you get your car back on the road soon. |
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02-28-2011, 07:53 PM | #129 |
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Not trying to hijack the thread, but I was wondering if it's normal to hear a slight ticking at with load on the engine at lower rpm (up to 3k) at operating temperature. I can hear it when driving next to walls or through tunnels, it almost sounds like an exhaust manifold leak.
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03-01-2011, 04:18 AM | #132 | |
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