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ELA
Barcelona


Joined: 30 Aug 2011
Posts: 1328
Location: Nurburgring Doorstep


PostPosted: Mon Oct 05, 2015 7:17 pm    Post subject: Reply with quote

New996buyer wrote:
Brilliant! thumbsup

Though does this count as 'What did you buy your 996 this week....?' or do I need to add a post script to that thread, (what did you remove...?) Confused Grin

That thread should be banned Hand every time I look at it I end up buying something Grin
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CLR996 1086kg bespoke design
 
  
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ELA
Barcelona


Joined: 30 Aug 2011
Posts: 1328
Location: Nurburgring Doorstep


PostPosted: Mon Oct 05, 2015 7:21 pm    Post subject: Reply with quote

BenC wrote:
Excellent work on this. I love this kind of project and have been racking my brain trying to think of other things you can get rid of Smile
Presume you've got rid of the spare wheel, if you have one?, in favour of a can of tyre weld etc


Certainly did Ben, about 5 years ago, the day after buying the car; I set my intentions out early Grin I have gone over the whole car now and have worked out everything that can be removed and what should be bought to lighten existing parts. When I get a moment I will type up my notes here Thumb
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CLR996 1086kg bespoke design


Last edited by ELA on Sun Nov 01, 2015 8:11 am; edited 1 time in total
 
  
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Jim1556
Newbie


Joined: 27 Apr 2011
Posts: 2



PostPosted: Mon Oct 05, 2015 7:39 pm    Post subject: Reply with quote

Eyup bud, hope all's well!

Just out of interest (being a 'family' car), why remove the passenger airbag?

If you're going down that route, might I suggest a lightweight steering wheel?

Might be popping over to the Ring on 23rd Oct (but just found out it's shut for racing, so undecided). I'll let you know! Thumb
 
  
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ELA
Barcelona


Joined: 30 Aug 2011
Posts: 1328
Location: Nurburgring Doorstep


PostPosted: Mon Oct 05, 2015 7:56 pm    Post subject: Reply with quote

Jim1556 wrote:
Eyup bud, hope all's well!

Just out of interest (being a 'family' car), why remove the passenger airbag?

If you're going down that route, might I suggest a lightweight steering wheel?

Might be popping over to the Ring on 23rd Oct (but just found out it's shut for racing, so undecided). I'll let you know! Thumb


Hi Jim, I'm removing all the airbags mate, just posting up pics as I go along so plan the Steering wheel airbag and 2x door airbags tomorrow.
Already have a plan in place for the steering wheel. Firstly I'll see how much weight is removed with the airbag (this may suffice), it not I have a stock 997GT3RS steering wheel to weigh or buy a CUP version. Either way I am firstly going down the 'what can be done for free' route before I start with buying titanium exhausts, Lexan windows... Thumb

Please let me know when you are next over at the NBR Wink
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ELA
Barcelona


Joined: 30 Aug 2011
Posts: 1328
Location: Nurburgring Doorstep


PostPosted: Thu Oct 08, 2015 9:39 am    Post subject: Reply with quote

UPDATE:
Here is all the available data I have so far (I will update the first post as I go along):

Each car has different spec so not all will be the same as my car but for info mine is a 1998 C2 manual with Sunroof, PSE, upgraded Hifi 10 speaker, Rear wiper, sports seats and Turbo Look solid 18’s.

Stock parts removed/lightened
Jack 1.3kg
Toolroll 0.8kg
Front Impact bar 3.1kg
Rear impact bar 3.8kg
Space saver wheel 11.3kg
Wiper motor assembly and insulation 2.2kg
2x rear carpets (behind rear seats) 6kg
Insulation behind Interior rear side lower panel 1.8kg per side = 3.6kg
Alpine speakers 0.6kg each x4 = 2.4kg
Door sub 1.8kg each = 3.6kg total
Carpet under rear seat lightened 2.6kg
Door airbag each 1.1kg = 2.2kg
Passenger airbag 3.3kg

Parts replaced (weight reduced by)
200 Cell Cats 4.3kg

Total weight removed so far: 50.5kg

FOR INFO ONLY: Other parts which have been weighed
Interior rear side lower panel 1.6kg
Interior rear wiper motor panel/cover 0.5kg
OEM seat each 23.7kg = 47.4kg
Carpet under rear seat 7.4kg
Centre console (around gear lever/handbrake) 2.4kg
Door card each 3.7kg = 7.4kg
Steering wheel airbag 1.2kg
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New997buyer
Banned


Joined: 17 Oct 2010
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PostPosted: Thu Oct 08, 2015 11:09 am    Post subject: Reply with quote

Really helpful! thumbsup
 
  
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Harv
Suzuka


Joined: 18 Sep 2014
Posts: 1204



PostPosted: Thu Oct 08, 2015 11:30 am    Post subject: Reply with quote

Great work, keeping an eye on this as the results should be excellent!

Who supplied the 200 cell cats?

Thumb
 
  
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MisterCorn
Dijon


Joined: 08 Jan 2011
Posts: 7315
Location: Nottingham, England

2004 Porsche 996 Turbo

PostPosted: Thu Oct 08, 2015 11:33 am    Post subject: Reply with quote

All very interesting, is this to be a track only car? I understood that if you have removed airbags which were fitted as standard then that is an automatic MOT failure now. I guess you could just fit resistors so that the airbag warning light works correctly to fool the MOT tester, as I think it refers to 'obviously defective' systems, but no idea what the insurance company would think about it.
There are exceptions for heavily modified cars, I had this on my Clio which has a full cage and a single bucket seat with full harness. This got through with no airbags on the heavily modified clause.

MC
 
  
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BHZ661
Barcelona


Joined: 03 Feb 2015
Posts: 1335
Location: Milton Keynes


PostPosted: Thu Oct 08, 2015 11:42 am    Post subject: Reply with quote

Its amazing what weight can be saved , when you see how heavy they are , top work thumbsup
 
  
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ELA
Barcelona


Joined: 30 Aug 2011
Posts: 1328
Location: Nurburgring Doorstep


PostPosted: Thu Oct 08, 2015 11:48 am    Post subject: Reply with quote

MisterCorn wrote:
All very interesting, is this to be a track only car? I understood that if you have removed airbags which were fitted as standard then that is an automatic MOT failure now. I guess you could just fit resistors so that the airbag warning light works correctly to fool the MOT tester, as I think it refers to 'obviously defective' systems, but no idea what the insurance company would think about it.
There are exceptions for heavily modified cars, I had this on my Clio which has a full cage and a single bucket seat with full harness. This got through with no airbags on the heavily modified clause.

MC


Hi MC, these questions have been answered in this thread (see previous page) but just to clarify:
Aim is for the car to be as useable as a stock car; rear seat and carpets retained etc Therefore no, not a track only Thumb Airbag resistors have been fitted to prevent dash light. I will be leaving approx. 44kg of parts in the car that could be removed for a more track orientated car (all interior panels, rear seats and belts, front and mid carpets, mats...)
My best estimate is that I will remove 185kg and still retain a standard looking car. Total possible to remove is around 230kg.
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drabux
Nürburgring


Joined: 01 Oct 2014
Posts: 400
Location: Bath


PostPosted: Thu Oct 08, 2015 9:51 pm    Post subject: Reply with quote

Following with great interest. Excellent info so far. Thanks.
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ELA
Barcelona


Joined: 30 Aug 2011
Posts: 1328
Location: Nurburgring Doorstep


PostPosted: Sat Oct 10, 2015 5:28 pm    Post subject: Reply with quote

Many thanks for the kind words guys Thumb

Ok a little update, I am basically pretty much finished with the removal of components now (will remove Air-con system and Engine bay insulation lining: around 14kg) when I buy the LWFW. So in total 57.8kg has been removed with around another 14kg to come (total ~72kg). The car still looks like it rolled off the Porsche assembly line Smile
Here are the last few bits and pieces done:
Tried to remove the steering wheel airbag but basically it is not really worth the hassle for 1.2kg as you would then need to fabricate a mount for the central cover. I plan to replace with a CUP one which is around 1.6kg lighter (997GT3RS Steering wheel wouldn’t work with 996 central cover).




Stock battery was really heavy at 17.4kg, Head-unit is 1.6kg, 6CD changer 1.9kg, Amplifier 1.2 and floor mats 2.6kg. Front compartment now empty.





From this point on it will be component replacement so it will start to get expensive. I predict around another 125kg will be removed by replacing parts and will come to around £14,000.

First post updated
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JohnnyDangerous
Estoril


Joined: 12 Jun 2013
Posts: 3613
Location: East Sussex


PostPosted: Sat Oct 10, 2015 6:27 pm    Post subject: Reply with quote

You need a voltphreaks battery dude
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drabux
Nürburgring


Joined: 01 Oct 2014
Posts: 400
Location: Bath


PostPosted: Sat Oct 10, 2015 6:40 pm    Post subject: Reply with quote

JohnnyDangerous wrote:
You need a voltphreaks battery dude


That would be ideal but, if you are on a real budget, bung a 40 A/H battery in. That's what I have fitted to my turbo. All is fine and it save a lot of weight.
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ELA
Barcelona


Joined: 30 Aug 2011
Posts: 1328
Location: Nurburgring Doorstep


PostPosted: Sat Oct 10, 2015 6:54 pm    Post subject: Reply with quote

Any idea of prices and weights for the 2 recommended batteries guys?
Voltphreaks and the 40 A/H
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Niall996
Imola


Joined: 07 Nov 2010
Posts: 843
Location: Paris


PostPosted: Sat Oct 10, 2015 7:25 pm    Post subject: Reply with quote

The 996 3.4 is already quite light, a great power to weight ratio. I'd love to know where taking 200kgs and possibly getting an extra 20bhp out of the motor would land it in comparison to other cars. 200kgs is a hell of a lot of weight. The effect must be considerable and surely a real challenger to a stock GT3?
 
  
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kas750
Shanghai


Joined: 31 Mar 2013
Posts: 4593
Location: Chorley lancashire

2006 Porsche 911

PostPosted: Sat Oct 10, 2015 7:35 pm    Post subject: Reply with quote

A brilliant thread Richard.I am really enjoying it. Thumb
 
  
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Senoj
Zolder


Joined: 23 Jan 2006
Posts: 5210
Location: Oxfordshire


PostPosted: Sat Oct 10, 2015 7:53 pm    Post subject: Reply with quote

Indeed a great read. I'm on a similar mission with my M3.... But unfortunately this is a Porsche forum. The BM forums all discuss wheels and single mothers...

Anyway, i am up to about 175kg reduction now but the thing about airbags worried me a bit, whats the MOT thing with airbags?? I have removed the airbag controller box so no lights on the dash.
 
  
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JohnnyDangerous
Estoril


Joined: 12 Jun 2013
Posts: 3613
Location: East Sussex


PostPosted: Sat Oct 10, 2015 8:04 pm    Post subject: Reply with quote

ELA wrote:
Any idea of prices and weights for the 2 recommended batteries guys?
Voltphreaks and the 40 A/H


I reckon you will get away with this one dude

https://p10.secure.hostingprod.com/@www.voltphreaks.com/ssl/catalog/product_info.php?cPath=1_5&products_id=81

I get a good discount which you are welcome to and you will never get starnded if it drops below 12v it turns off so you just press a button and have 12v to start the car with.
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ELA
Barcelona


Joined: 30 Aug 2011
Posts: 1328
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PostPosted: Sat Oct 10, 2015 8:52 pm    Post subject: Reply with quote

JohnnyDangerous wrote:
ELA wrote:
Any idea of prices and weights for the 2 recommended batteries guys?
Voltphreaks and the 40 A/H


I reckon you will get away with this one dude

https://p10.secure.hostingprod.com/@www.voltphreaks.com/ssl/catalog/product_info.php?cPath=1_5&products_id=81

I get a good discount which you are welcome to and you will never get starnded if it drops below 12v it turns off so you just press a button and have 12v to start the car with.


Many thanks for this JD, $900 tis pretty steep though; you able to manage an 80% discount Grin
I have found an Odyssey PC680 for about £100. They weigh 7kg so would be over 10kg saved. The one you recommend would be another 5kg lighter again, but at a considerable price difference.
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