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#51
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I haven’t found a build other than the X5LM, and mine, with a manual, that has AWD. Have you found any? I am very curious to know if there are any other builds.
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02 BMW 5 Speed Supercharged Ethanol Burnin Meth Injected E53 |
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#52
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I see. Nope, don't know of one.
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Dallas |
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#53
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I think though, I have reached the limit with the gearbox.
After that 3rd gear pull, I attempted to lazily shift into 4th since there was no need for further acceleration. And the synchros were an issue. I was gently putting into 4th, so no damage. But there was a very light grind, so I just went neutral. I think that pull spun the box up a bit to hard. I’ve never had grind on any gears on my E53. So I think it will now require conservative shifting, and being very careful with the redline pulls. I don’t see mildly aggressive shifting below 5000 rpm being an issue, but caution should be used above that. Those headers really brought the power out. I am still kind of shocked. But at least I learned some limitations, and I know for me personally, there is no reason to be ripping that hard.
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02 BMW 5 Speed Supercharged Ethanol Burnin Meth Injected E53 |
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#54
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Quote:
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2011 M3 2006 Sierra 2500HD 4WD LBZ/Allison 2004 X5 3.0i 6MT 1995 M3 S50B32 1990 325is 1989 M3 S54B32 Hers: 1989 325iX 1996 911 Turbo
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#55
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The RMS kit puts 400 hp to the flywheel. That was on 91 pump gas.
Add the headers, E85, with meth injection, I wouldn’t be surprised if it over 450. There is a LOT of torque. Also, remember the differences between diesel, and non diesel engines. The redline on the diesel is substantially lower, resulting in lower input shaft speeds vs non diesel. It doesn’t take much to blow a gearbox that is out of synchronization, in a high rpm shifting situation. It’s not so much the applied torque that is the concern, unless it is just stupid high on a gearbox that weak to extreme torque. I am pretty sure I spun the crap out of the synchros. I will NOT be doing that again!
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02 BMW 5 Speed Supercharged Ethanol Burnin Meth Injected E53 |
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#56
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Quote:
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2011 M3 2006 Sierra 2500HD 4WD LBZ/Allison 2004 X5 3.0i 6MT 1995 M3 S50B32 1990 325is 1989 M3 S54B32 Hers: 1989 325iX 1996 911 Turbo
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#57
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True, but those applications aren’t over 2 ton, and are not AWD. It takes a bit more to move these tanks. And when you’re pushing them as hard as I did yesterday, I think a bit of caution would be prudent. Thank you for the heads up on the durability info for the ZF. I’ve always wondered if they were reliable. It just the weight of these vehicles, it makes things work a bit harder, and hotter.
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02 BMW 5 Speed Supercharged Ethanol Burnin Meth Injected E53 |
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#58
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With a manual transmission, it doesn't care of the weight of the vehicle. Only the torque produced by the engine matters. The transmission encounters the same stresses when transmitting X lbft of torque, whether the car is 1,000lbs or 8,000lbs. (Except when it comes to overheating, but that is generally not how manual transmissions break.)
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2003 3.0 5MT Topasblau Purchased in 2016 and sold in 2024 2012 35d Platingrau |
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#59
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So if I am understanding you correctly, you are saying the applied stress on a drivetrain to move a vehicle, is the same at 8000lbs, as it is for 1000lbs?
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02 BMW 5 Speed Supercharged Ethanol Burnin Meth Injected E53 |
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#60
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As I understand it, the weak point is that you start breaking third gear.
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2011 M3 2006 Sierra 2500HD 4WD LBZ/Allison 2004 X5 3.0i 6MT 1995 M3 S50B32 1990 325is 1989 M3 S54B32 Hers: 1989 325iX 1996 911 Turbo
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