04-10-2021, 04:53 AM | #67 | |
Major General
3487
Rep 9,709
Posts |
Quote:
So Alfa came up with a solution that enabled them to keep a CF DS and the full aural delights from a non OPF exhaust solution on their top drawer sporty model? You mentioned compromise? |
|
Appreciate
0
|
04-11-2021, 08:51 AM | #68 |
Brigadier General
2350
Rep 4,253
Posts |
The CFRP driveshaft was dropped for cost reasons initially, nothing more. And as evidenced by enthusiast themselves justifying the G8x weight gain and how you "totally don't notice it", I'd say BMW made a solid decision. Not that I'm convinced it was that much lighter in CFRP form anyway.
As for OPF yeah those damn things are massive and are going to definitely require engineering solutions for the driveshaft. I couldn't believe they were larger than cats when I first saw them.
__________________
///M Power
|
Appreciate
2
Sedan_Clan24980.50 heavyD^23688.50 |
04-13-2021, 07:52 AM | #70 | |
Colonel
3689
Rep 2,956
Posts |
Quote:
|
|
Appreciate
0
|
04-17-2021, 09:31 PM | #71 | ||
Plenipotentiary
2614
Rep 3,046
Posts |
Quote:
The pre-fitting was indeed due to the potential need to add OPF to unsold vehicles remaining on the effective date. Quote:
|
||
Appreciate
2
Sedan_Clan24980.50 CanAutM321115.00 |
04-18-2021, 02:35 AM | #72 | |||
Law Enforcer
24981
Rep 22,266
Posts
Drives: '22 Chalk Gray Porsche C2S
Join Date: Jun 2006
Location: ..in your rearview!!!
|
Quote:
|
|||
Appreciate
0
|
04-18-2021, 04:05 AM | #73 | |
Major General
3487
Rep 9,709
Posts |
Quote:
It had a sliding spline section to adjust for varying length, like all driveshafts have, even the G80 one. The G80 shaft has an additional, normally solid, crash break point to allow it to telescope inside itself. |
|
Appreciate
1
Sedan_Clan24980.50 |
04-18-2021, 08:06 AM | #74 | ||
Plenipotentiary
2614
Rep 3,046
Posts |
Quote:
"In a longitudinal collision, the CFRP driveshaft transfers crash forces from one end of the vehicle to the other. If the axial load exceeds 20,000 pounds, the splined fittings collapse in a controlled manner within the tube to absorb energy." |
||
Appreciate
1
CanAutM321115.00 |
04-18-2021, 10:24 AM | #75 | |||
Major General
3487
Rep 9,709
Posts |
Quote:
Whilst similar in effect, it definitely isn't the same mechanism. This is all new and needed due to the very thin DS. |
|||
Appreciate
0
|
Post Reply |
Bookmarks |
|
|