7:14.3 GT3 at The Ring, real?
12-09-2016 | 10:11 PM
#47
Three Wheelin'
Joined: Dec 2013
Posts: 1,465
Likes: 218
. It's no coincidence they make the highest profit margin in automobiledom. But hey, at least it's only at the front now. That's up there with Corvettes still using a transverse composite leaf-spring front and back. Both approaches work, although neither optimal... but they save money
. And yes, with 265 sticky tires, that could be a limiting factor.
12-10-2016 | 12:16 AM
#49
Instructor
Joined: Mar 2008
Posts: 243
Likes: 19
From: SoFlo
Struts are simple, light, and cheaper. Plus on a Porsche there isn't too much load going through the front tires since the engine is in the wrong place, so it makes it harder to justify double wishbones. But then again their GTLM racecar has double wishbones and they are moving the engine to the right location next year... 
12-10-2016 | 12:35 AM
#51
Instructor
Joined: Mar 2008
Posts: 243
Likes: 19
From: SoFlo
The weight distribution and especially the PMI of a rear engine is inherently disadvantaged for skidpad testing, but there's a rear grip acceleration advantage. There are always tradeoffs in different layouts.
I don't care too much for abstract skidpad results.
I don't care too much for abstract skidpad results.
12-10-2016 | 01:44 AM
#53
Pro
Joined: Oct 2014
Posts: 568
Likes: 2
From: Bowling Green, KY
Cough, wider front tires, cough.
12-10-2016 | 03:30 AM
#55
Rennlist Member
Joined: Jan 2013
Posts: 4,300
Likes: 1,277
From: West Vancouver and San Francisco
That certainly has an impact. There are a lot of other variables as well such as weight distribution, weight, brake bias, alignment, etc. What effect, if any, do people think MacPherson struts have on the car versus if it had double wishbone? I do not intend to criticize the car or make it seem like MacPherson struts are an issue. Only that it seems like the competition uses a different geometry that potentially has performance differences.
12-10-2016 | 05:34 AM
#56
Banned
Joined: Jun 2016
Posts: 1,350
Likes: 12
From: Australia
as opposed to a 300ft/200ft pan. The AMG ring time is impressive no matter which way you box and dice it. Nice lap from Chris Gebhardt
12-10-2016 | 07:09 PM
#58
Instructor
Joined: Mar 2008
Posts: 243
Likes: 19
From: SoFlo
Struts have very minimal camber gain, so theoretically they should be better than a double wishbone for braking, which the front tires camber in under compression, reducing the contact patch of the tire.
12-10-2016 | 08:25 PM
#60
Rennlist Member
Joined: Jun 2001
Posts: 3,829
Likes: 217
From: La Jolla
What passed the R like he was standing still (Cup car)? After a minute the R was so far behind you would assume it was more than 10 seconds, Are we to conclude that the car that passed him did the Ring in less than seven minutes?
Also, regarding the GT3 how is it he had a clear track? I don't think it was a factory sponsored run.
Also, regarding the GT3 how is it he had a clear track? I don't think it was a factory sponsored run.