Welcome to the North American Subaru Impreza Owners Club Monday July 6, 2015
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC General > News & Rumors > Non-Subaru News & Rumors

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 02-10-2010, 11:59 PM   #1
shikataganai
Scooby Specialist
 
Member#: 92634
Join Date: Aug 2005
Chapter/Region: RMIC
Vehicle:
'07 Land Cruiser
'12 RAV4 EV

At the Track Porsche 911 GT3 R Hybrid

Source: Autoblog.com's Geneva Preview

Quote:
Originally Posted by Autoblog
In an interesting about-face, Porsche has revealed the first images and details on its new racer, the 911 GT3 R Hybrid.

Based on the rear-drive 911 GT3 R that's set to take to the track in privateer hands later this year, the GT3 R Hybrid utilizes a rear-mounted, 480-hp 4.0-liter flat-six in conjunction with two electric motors that drive the front wheels. Residing in the space normally reserved for the passenger seat sits a flywheel, which harnesses kinetic energy under braking and can spin upwards of 40,000 rpm. Once enough energy is stored, the system lets loose up to 120 kilowatts – approximately 160 horsepower – to the front wheels in six to eight second bursts that are controlled by a steering wheel-mounted button.

Porsche apparently hasn't released official performance specs, but the GT3 R Hybrid's world debut will take place at the Geneva Motor Show before it hits the track for its motorsports debut at the Nürburgring 24 Hours on May 15. Devised as a rolling "racing laboratory," after the Hybrid takes to the Green Hell this year, Porsche plans to assault the 24 Hours of LeMans in a refined version in 2012, just as the sanctioning body begins to favor hybrids. Now about that "no hybrids" thing...
Photos:





* Registered users of the site do not see these ads.
shikataganai is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 02-11-2010, 12:26 AM   #2
skywaffles
Scooby Specialist
 
Member#: 82470
Join Date: Mar 2005
Chapter/Region: NWIC
Vehicle:
cat snatch

Default

Now that's a hybrid I can get behind.
I wonder how much it weighs or if it has a gyroscopic effect for the handling.

Also, that can't be good in a crash to have several hundred pounds of metal spinning at 40,000rpm sitting next to you.
skywaffles is online now   Reply With Quote
Old 02-11-2010, 12:57 AM   #3
E. Nick
Scooby Specialist
 
Member#: 8489
Join Date: Jul 2001
Chapter/Region: BAIC
Location: Atherton, CA
Vehicle:
1978 Plymouth Volare
Maroon / White Vinyl

Default

Wow, scared me for a second - KERS is awesome! That ain't no Prius!
E. Nick is offline   Reply With Quote
Old 02-11-2010, 02:11 AM   #4
bemani
Scooby Specialist
 
Member#: 5673
Join Date: Apr 2001
Location: Folsom, CA
Vehicle:
02 bug eye, 05 LGT

Default

Quote:
Originally Posted by skywatcher View Post
Now that's a hybrid I can get behind.
I wonder how much it weighs or if it has a gyroscopic effect for the handling.

Also, that can't be good in a crash to have several hundred pounds of metal spinning at 40,000rpm sitting next to you.
You have a link on the extra weight?
bemani is offline   Reply With Quote
Old 02-11-2010, 02:26 AM   #5
SPEED6
Scooby Specialist
 
Member#: 149367
Join Date: May 2007
Chapter/Region: TXIC
Location: Plano, Tx
Vehicle:
1993 NSX
Formula Red

Default

A porsche that winds itself like a watch...interesting but unnecessary
SPEED6 is offline   Reply With Quote
Old 02-11-2010, 02:47 AM   #6
sauuce
Scooby Specialist
 
Member#: 109253
Join Date: Mar 2006
Chapter/Region: BAIC
Location: Davis
Vehicle:
2006 STi
SGM

Default

Quote:
Originally Posted by bemani View Post
You have a link on the extra weight?
he was probably just exaggerating about the weight. ANYTHING spinning at 40K RPMs that close to you isnt safe. But then again, racing is generally not the safest sport :P
sauuce is offline   Reply With Quote
Old 02-11-2010, 03:19 AM   #7
bal00
Scooby Specialist
 
Member#: 54772
Join Date: Feb 2004
Default

If cost is not a huge concern (and it wouldn't be for a one-off research project), there are plenty of ways to make a high rpm flywheel safe. You can use copious amounts of Kevlar to contain any debris, or you can use steel or composite wire wound around a small solid core instead of a solid metal disc.
bal00 is offline   Reply With Quote
Old 02-11-2010, 08:12 AM   #8
registering
Scooby Specialist
 
Member#: 89332
Join Date: Jun 2005
Location: Florida
Vehicle:
2007 Miata
Silver

Default

Pretty pictures and all, but not very elegantly designed. Granted I'm sure it helps with weight distribution plopping it in the passenger seat, but still, seems cludgey [sic?].
registering is offline   Reply With Quote
Old 02-11-2010, 08:29 AM   #9
drummerboy827
Scooby Newbie
 
Member#: 124720
Join Date: Sep 2006
Location: MD
Vehicle:
2009 WRX Hatch
Black

Default

I imagine the relative weight of the disk to the car will eliminate most gyroscope concerns. Also on that axis it won’t affect handling going left/right.

I'm curious about the bearings they're using to spin the disk to 40k rpm. I’ve heard ppl talking about doing this in F1 cars for awhile now; just enough to give it a quick boost in the low end after hard braking. Here, they are describing it as a boost button or something. One more thing for the driver to worry about.

I’d like to see some data on the weight of that thing, but 160kW is very impressive for such a small package. It can be charged much faster than batteries - almost like ultra capacitors. Glad to see hybrids are making their way to motorsports.
drummerboy827 is offline   Reply With Quote
Old 02-11-2010, 10:04 AM   #10
themarxist
Scooby Specialist
 
Member#: 104555
Join Date: Jan 2006
Chapter/Region: TXIC
Location: Norman, OK
Vehicle:
1996 VW Passat Wagon
TDi White

Default

I'm willing to bet that the system uses a pair of counter-rotating flywheels, which negates the gyroscopic effects, since the angular momenta cancel each other out. The flywheel based KERS systems people were proposing for F1 a few years back were the same way.
themarxist is offline   Reply With Quote
Old 02-11-2010, 10:20 AM   #11
Turn in Concepts
NASIOC Vendor
 
Member#: 93646
Join Date: Aug 2005
Chapter/Region: MWSOC
Vehicle:
Many Track Records
Let us help you go fast!

Default

So in mullet terms we're talking about a 160 shot for your porsche?
Turn in Concepts is offline   Reply With Quote
Old 02-11-2010, 10:32 AM   #12
Layman
Scooby Specialist
 
Member#: 3717
Join Date: Jan 2001
Chapter/Region: MAIC
Location: Army of Northern Virginia
Vehicle:
2011 Swagger Wagon
bikes with pedals

Default

Quote:
Originally Posted by Turn in Concepts View Post
So in mullet terms we're talking about a 160 shot for your porsche?


Exactly what I was thinking.
Layman is offline   Reply With Quote
Old 02-11-2010, 10:37 AM   #13
garface
Scooby Guru
 
Member#: 1581
Join Date: Jun 2000
Chapter/Region: Tri-State
Location: yonkers, ny
Vehicle:
MY00 RS/STi7
MY01 RS Both Silverthorne

Default

That's cool. It's like the "turbo" button in video games.
garface is offline   Reply With Quote
Old 02-11-2010, 11:08 AM   #14
White out
Scooby Guru
 
Member#: 46277
Join Date: Oct 2003
Chapter/Region: SCIC
Location: On the beach
Vehicle:
** LP640
996TT

Default

so is there a 'turbo power' button?

I like to see the performance applications of the hybrid technology.

Nick
White out is offline   Reply With Quote
Old 02-11-2010, 11:43 AM   #15
Hites
Scooby Specialist
 
Member#: 138997
Join Date: Jan 2007
Chapter/Region: MWSOC
Location: Belle Center, OH
Vehicle:
0000 Nothing

Default

640hp electro-nitrous AWD Porsche ain't bad in my book.
Hites is offline   Reply With Quote
Old 02-11-2010, 11:53 AM   #16
Chiketkd
Scooby Guru
 
Member#: 71634
Join Date: Sep 2004
Chapter/Region: MAIC
Location: C-Ville, VA
Vehicle:
In hibernation...

Default

Quote:
Originally Posted by Hites View Post
640hp electro-nitrous AWD Porsche ain't bad in my book.
+12345!!!!
Chiketkd is offline   Reply With Quote
Old 02-11-2010, 12:17 PM   #17
Not-EWRX
Scooby Specialist
 
Member#: 158043
Join Date: Aug 2007
Chapter/Region: RMIC
Location: SLC
Vehicle:
2013 Wrx Hatch
SWP

Default

I'll wait for Top Gear's impressions on this one.
Not-EWRX is offline   Reply With Quote
Old 02-11-2010, 08:20 PM   #18
shikataganai
Scooby Specialist
 
Member#: 92634
Join Date: Aug 2005
Chapter/Region: RMIC
Vehicle:
'07 Land Cruiser
'12 RAV4 EV

Default

Autoblog: Videos: Porsche 911 GT3 R Hybrid uses Williams F1 flywheel KERS



Quote:
The hybrid drive system being used by Porsche in its new 911 GT3 R isn't what you find in your average Prius or Fusion. Instead of a battery for energy storage, the 911 will use an electro-mechanical flywheel. The system being used was actually developed by the Williams formula one team and its Williams Hybrid Power subsidiary.

The system is comprised of an electrically driven flywheel and a motor/generator on the gearbox. During braking the gearbox mounted generator drives the flywheel to spin it up to 40,000 rpm. When needed for extra acceleration, the flywheel drives its integrated motor/generator to spin provide power back to the unit on the gearbox.

In the case of the 911, a pair motor generators are actually on the front wheels instead of the single unit on the gearbox as it was on the Williams F1 car last year. This provides more regenerative braking capability as well as all wheel drive.

The flywheel itself is made of a composite material that is infused with magnetic particles when it is being molded. This actually acts as the permanent magnet for the motor, helping to keep the overall weight down. The result is a very efficient system with less mass than a battery system and the ability to absorb energy more rapidly than a battery similar to an ultracapaitor. Like ultracapacitors the downside for automotive applications is limited energy storage capacity.

As a result, electric driving is limited meaning that this really behaves more like a mild hybrid system than a strong hybrid. However, the power output is closer to what is available from most strong hybrids. Williams Hybrid Power is working with a number of automakers on implementing its flywheel system although only Porsche has been publicly identified. Porsche's has setup a microsite for its new Hybrid racecar, and for more details, make the jump for the release and a video explaining the system, along with two promo videos.
Hotness. Again, video at the link: http://www.autoblog.com/2010/02/11/v...flywheel-kers/ . Also note the Porsche microsite for the car: http://www.porsche.com/microsite/int...rnational.aspx
shikataganai is offline   Reply With Quote
Old 02-11-2010, 10:28 PM   #19
SCRAPPYDO
Scooby Guru
 
Member#: 873
Join Date: Feb 2000
Chapter/Region: TXIC
Location: Just outside of Houston TX
Vehicle:
2014 GLK350/2016 WRX
Datsun 71 240Z & 68 2000

Default

Quote:
Originally Posted by skywatcher View Post
Now that's a hybrid I can get behind.
I wonder how much it weighs or if it has a gyroscopic effect for the handling.

Also, that can't be good in a crash to have several hundred pounds of metal spinning at 40,000rpm sitting next to you.
I assure you that several hundred pounds are not spinning at 40000 rpm. Probably less than 20. You do know your turbo in your subie is about 1.5 feet from your right leg, and it spins over 70000 rpm.
SCRAPPYDO is offline   Reply With Quote
Old 02-12-2010, 02:43 PM   #20
Turn in Concepts
NASIOC Vendor
 
Member#: 93646
Join Date: Aug 2005
Chapter/Region: MWSOC
Vehicle:
Many Track Records
Let us help you go fast!

Default

Quote:
Originally Posted by SCRAPPYDO View Post
I assure you that several hundred pounds are not spinning at 40000 rpm. Probably less than 20. You do know your turbo in your subie is about 1.5 feet from your right leg, and it spins over 70000 rpm.
Up that number a bit. Turbos spin stoopid fast.
Turn in Concepts is offline   Reply With Quote
Old 02-12-2010, 05:29 PM   #21
themarxist
Scooby Specialist
 
Member#: 104555
Join Date: Jan 2006
Chapter/Region: TXIC
Location: Norman, OK
Vehicle:
1996 VW Passat Wagon
TDi White

Default

Quote:
Originally Posted by Turn in Concepts View Post
Up that number a bit. Turbos spin stoopid fast.
Yup. For smallish ones you could be looking at easily over 200,000 rpm
themarxist is offline   Reply With Quote
Old 02-12-2010, 08:23 PM   #22
Derbagger
Scooby Specialist
 
Member#: 32113
Join Date: Jan 2003
Chapter/Region: NESIC
Location: Trollhatten, Japan
Vehicle:
05 Saabaru
Satin Grey

Default

looking at the tech pic, I thought that was a chaparral style street sucker.
Derbagger is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Porsche 911 GT3 and GT3 RS recalled wrxtuner02 Off-Topic 22 04-13-2007 01:10 PM
Full Test: 2007 Porsche 911 GT3 (edmunds.com) NYCshopper Non-Subaru News & Rumors 28 03-28-2007 03:48 PM
NEW 2006 Porsche 911 GT3 RSR NYCshopper Non-Subaru News & Rumors 4 07-25-2006 10:25 AM
New Porsche 911 GT3 cup kotaro Off-Topic 13 08-01-2004 12:00 PM
Porsche 911 GT3?!? Brady Off-Topic 14 10-26-2003 10:55 PM


All times are GMT -4. The time now is 04:53 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2015 Axivo Inc.
Copyright ©1999 - 2015, North American Subaru Impreza Owners Club, Inc.