07-18-2019, 03:58 PM | #101 | |
Solving problems
Join Date: Oct 2003
Carmudgeonly Ride: M5 / 718 GTS / Cooper S / GTI / LR4
Location: Metro Boston
Posts: 25,264
|
Quote:
BMW designed the S65 and S85 with approximately half the industry standard oil clearance. This is a trendy move among some auto manufacturers to increase gas mileage and increase horsepower. But when they do it, like in the Toyota Prius, the auto manufacturer also specifies a very thin oil to match the very small oil clearance. BMW dropped the ball here and is using very small oil clearance and very thick 10W60 oil. Tight tolerances on their own are not a bad thing other than adding cost. They reduce wobble, which in a fast-rotating shaft means friction, which leads to heat and inefficiency (less power and fuel economy, and probably less opportunity to rev as high as that engine does). The killer is the oil viscosity. I'm not an expert in IC engine design but these are general machine design principles. |
|
07-18-2019, 04:44 PM | #102 |
Relic
Join Date: Oct 2003
Location: Bethesda, MD
Posts: 12,458
|
Three different size cranks.
__________________
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 |
07-18-2019, 05:12 PM | #103 | |
Relic
Join Date: Oct 2003
Location: Bethesda, MD
Posts: 12,458
|
Quote:
__________________
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 |
|
07-18-2019, 05:41 PM | #104 | |
Chief title editor
Join Date: Oct 2003
Posts: 26,599
|
Quote:
The cool thing is how Mazda has responded. They've bent over backwards to replace broken transmissions quickly for autocrossers, often overnighting them to dealers, and they made a ton of changes to the ND1 transmissions to fix the problem...although not completely successfully. Not sure how the ND2 transmissions have fared so far.
__________________
OH NOES!!!!!1 MY CAR HAS T3H UND3R5T33R5555!!!!!!1oneone!!!!11 Team WTF?! What are you gonna do? |
|
07-18-2019, 08:07 PM | #105 |
Mugwump
Join Date: Oct 2003
Carmudgeonly Ride: E46 330i, Chevy Colorado, Tesla Model 3
Location: NY
Posts: 17,475
|
As you well know, I was stuck in that same loop for 13 years while driving my e46. It's not that I didn't think other cars weren't better in certain ways - it was that I wasn't willing to pay big money to get what I perceived as incremental improvements to what I already had.
I even bought a Porsche and sold it because I didn't enjoy having $50k tied up in what I still felt offered incremental enjoyment. Then I went and paid more money for the Tesla than I ever imagined I would pay for a car, and I haven't regretted it for a second. And I've realized it's not because it's "so good"; it's because it's so different (while still being good). It's not an incremental improvement over what you have, like every other car you could buy. It's a disruptive leap in a diagonal direction. I know people are tired of hearing from the Tesla fanboys. And I'm not trying to argue the car is for everyone. And yes the car has weaknesses. I'm just saying that - assuming you like what the Tesla brings to the table when you test drive it - you probably won't later look at your other cars and say "I could have gotten this same feeling by driving them." It's too different. It's a totally different high. . Last edited by rumatt; 07-18-2019 at 08:39 PM. |
07-18-2019, 08:11 PM | #106 | |
Solving problems
Join Date: Oct 2003
Carmudgeonly Ride: M5 / 718 GTS / Cooper S / GTI / LR4
Location: Metro Boston
Posts: 25,264
|
Quote:
|
|
07-18-2019, 09:01 PM | #107 |
Alphanumeric
Join Date: Aug 2005
Carmudgeonly Ride: 981S, 340i
Posts: 9,584
|
I loved by ZHP(s) as well and also went to a 987 which I ended up loving. I think between entering different stages of life and driving itself changing, the experiences are less impactful than they used to be and feelings are not as strong.
|
07-18-2019, 10:17 PM | #108 |
dogged
Join Date: Dec 2003
Carmudgeonly Ride: '22 M440 xDrive GC
Posts: 13,299
|
Yeah. My M3 convertible is number 1, but there was also a lot going on in my life then. It was fun and therapeutic (dying parents; young, needy kid.) My current car is a close second, and a lot easier to live with, frankly.
|
07-19-2019, 08:15 AM | #109 |
Hello.
Join Date: Mar 2004
Carmudgeonly Ride: '09 X3, '11 328xiT, '11 135i C, '17 c2, '19 X5
Location: Downingtown, PA
Posts: 5,531
|
Here's another '95 M3 that looks pretty nice.
https://www.cargurus.com/Cars/invent...ting=197653984
__________________
Josh (PA) - '19 X5 '17 991.2 C2 Cab '11 135i Convertible '11 328xiT '09 X3 |
07-19-2019, 08:52 AM | #110 | |
older fart than ZBB
Join Date: Oct 2003
Location: On the road again
Posts: 8,900
|
Quote:
__________________
2017 GMC Sierra 1500 SLE 2020 Fusion Titanium |
|
Bookmarks |
|
|