Car and Bike Talk Discussions and comparisons of cars and motorcycles of all makes and models.

2013 GTR

Thread Tools
 
Old Dec 11, 2011 | 10:26 AM
  #41  
tarheel91's Avatar
Registered User
 
Joined: Aug 2008
Posts: 862
Likes: 0
Default

Originally Posted by Mr.E.G.
You guys do realize (I recognize that some of your do) that they are not talking about sustained g forces on a skidpad (read: magazine g forces), right? They are talking about a momentary spike. For the record, I don't believe that this is likely, I'm merely making sure where all on the same page.
2.3G spikes on a regular race track and 2.8G spikes on the Ring are B.S. I've never seen spikes exceed 150% of sustained lateral G's. That would put sustained lateral G's at above 1.5G on a regular race track and that's simply not possible unless you've got slicks on, especially for a 3800lb behemoth. A typical FSAE car weighing in at 550lbs with driver on Hoosiers will only pull 1.5ish G on a 50ft skidpad.

Edit: Not arguing with you, E.G. I know you're agreeing. I was just expanding on what I said up there.

I'm betting it was an error with the sensors or telemetry.
Reply
Old Dec 11, 2011 | 07:27 PM
  #42  
Mr.E.G.'s Avatar
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2005
Posts: 6,281
Likes: 119
Default

Originally Posted by Mr.E.G.
You guys do realize (I recognize that some of your do) that they are not talking about sustained g forces on a skidpad (read: magazine g forces), right? They are talking about a momentary spike. For the record, I don't believe that this is likely, I'm merely making sure where all on the same page.

Holy shit. Typo city. I can't believe I'm responsible for that post. Apologies all around.
Reply
Old Dec 11, 2011 | 08:07 PM
  #43  
s2kpdx01's Avatar
Registered User
 
Joined: Jun 2002
Posts: 8,561
Likes: 1
From: Foster City, CA
Default

Originally Posted by tarheel91
Originally Posted by Mr.E.G.' timestamp='1323386308' post='21222059
You guys do realize (I recognize that some of your do) that they are not talking about sustained g forces on a skidpad (read: magazine g forces), right? They are talking about a momentary spike. For the record, I don't believe that this is likely, I'm merely making sure where all on the same page.
2.3G spikes on a regular race track and 2.8G spikes on the Ring are B.S. I've never seen spikes exceed 150% of sustained lateral G's. That would put sustained lateral G's at above 1.5G on a regular race track and that's simply not possible unless you've got slicks on, especially for a 3800lb behemoth. A typical FSAE car weighing in at 550lbs with driver on Hoosiers will only pull 1.5ish G on a 50ft skidpad.

Edit: Not arguing with you, E.G. I know you're agreeing. I was just expanding on what I said up there.

I'm betting it was an error with the sensors or telemetry.
it seems like if it was an error they wouldn't of told it to the reviewer. they had to of known he would repeat it.
Reply
Old Dec 12, 2011 | 12:41 AM
  #44  
Steponme's Avatar
Banned
 
Joined: Oct 2009
Posts: 2,825
Likes: 1
Default

Originally Posted by tarheel91
Lateral G's are 90% tires. There's no street tire that can exceed 1.1G
Not true. The GT-R Spec V had pulled 1.15G on a skidpad with its stock tires.
Reply
Old Dec 12, 2011 | 06:25 AM
  #45  
s2kpdx01's Avatar
Registered User
 
Joined: Jun 2002
Posts: 8,561
Likes: 1
From: Foster City, CA
Default

I was able to hold 1.2 sustained Gs in a Z06 on pilot sport tires (non-cups) at a road and track event at spring mountain. I won the challenge by spiking it to 1.3. I believe it was a 70ft skidpad. I even got a silly little trophy for it I am suspect of 2.3 2.8 on anything resembling street tires. Even if you could do it I imagine much of that and those tires would be done very quickly.
Reply
Old Dec 12, 2011 | 01:46 PM
  #46  
Driven's Avatar
20 Year Member
Liked
Community Favorite
 
Joined: May 2003
Posts: 3,045
Likes: 45
From: Las Vegas
Default

It's an instant lateral G reading, NOT a sustained lateral G. Don't know why it's this confusing...

Also, the carousels have little grip, although they are banked. You'll likely see more lateral G's on other corners with less banking but a ton more grip
Reply
Old Dec 12, 2011 | 03:25 PM
  #47  
tarheel91's Avatar
Registered User
 
Joined: Aug 2008
Posts: 862
Likes: 0
Default

Originally Posted by s2kpdx01
I was able to hold 1.2 sustained Gs in a Z06 on pilot sport tires (non-cups) at a road and track event at spring mountain. I won the challenge by spiking it to 1.3. I believe it was a 70ft skidpad. I even got a silly little trophy for it I am suspect of 2.3 2.8 on anything resembling street tires. Even if you could do it I imagine much of that and those tires would be done very quickly.
A Z06 also doesn't have 3800lbs on the tires. It's much more difficult to generate 1.2G in a 3800lb car than a 3000lb car thanks to tire load sensitivity.
Reply
Old Dec 12, 2011 | 03:57 PM
  #48  
sparrow's Avatar
Registered User
 
Joined: Mar 2007
Posts: 7,899
Likes: 1
Default

Originally Posted by Driven
It's an instant lateral G reading, NOT a sustained lateral G. Don't know why it's this confusing...

Also, the carousels have little grip, although they are banked. You'll likely see more lateral G's on other corners with less banking but a ton more grip
Bullshit. I hit 3g in Forza all the damn time on that turn.
Reply
Old Dec 12, 2011 | 11:08 PM
  #49  
20aeman's Avatar
Registered User
 
Joined: Feb 2007
Posts: 433
Likes: 0
Default

Originally Posted by s2kpdx01
Originally Posted by dombey' timestamp='1322794159' post='21203257
totally. The GTR will always be a 90,000 car when it comes to repairs. You'll pay through the nose to keep an old one running.
I think it will have the mechanical costs of much more expensive car. I wouldn't be surprised if it's on par with ferrari as it ages.
I agree. The GTR is a 90k car because it doesn't use a bespoke chassis. The hardware is ferrariesque, and the chassis is G37...hence the relatively low price. Mechanical repairs/maintenance will be right up there with the exotics.

I'd personally sacrifice all the performance for a bespoke chassis car...like a 991 Carrera S.
Reply
Old Dec 14, 2011 | 08:26 PM
  #50  
Chris S's Avatar
25 Year Member
 
Joined: Jan 2001
Posts: 11,615
Likes: 1
From: North Richland Hills, TX
Default

I spiked @ 1.91G on my old NC MX-5. IIRC, I was running 235/40-17 NT-01's at the time, along w/ CO's, sways, etc. I wouldn't expect a stock GT-R to outgrip it on the track (and yes, I've driven in a couple).
Reply



All times are GMT -8. The time now is 08:31 PM.