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[Z06] Halltech Project Ultraleggera Underway

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Old 04-02-2014, 06:22 PM
  #601  
Halltech
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On the road again. The new ML30C Braille starts the car instantly. It sits quitely at almost 14.9V fully charged. Braille GU1R at 6.3lbs starts our car every time as well and is 50% lighter than the ML30C. 9.68lbs vs 6.3lbs.

Testing date on the CFRP one piece carbon fiber wheels for those who need data:

http://www.halltech-carbon.com/ITS1.pdf

http://www.halltech-carbon.com/ITSBiax.pdf

http://www.halltech-carbon.com/ITSImpact.pdf

http://www.halltech-carbon.com/TUVradialimpactfr.pdf

http://www.halltech-carbon.com/TUVradialimpactr.pdf

http://www.halltech-carbon.com/ITSRadial.pdf

McLaren has already put CR-9s on their P1:

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Last edited by Halltech; 04-06-2014 at 09:09 PM.
Old 04-22-2014, 11:15 AM
  #602  
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What's the likelihood of the OEM vs lightweight alternative parts being documented in a spreadsheet? Any takers on this? Great info hear but it's spread through 30+ pages.
Old 04-22-2014, 11:52 AM
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Originally Posted by Turbo2L
What's the likelihood of the OEM vs lightweight alternative parts being documented in a spreadsheet? Any takers on this? Great info hear but it's spread through 30+ pages.
That is taken care of. See the thread Z06 OEM and Aftermarket Parts Weight List, Post # 267 and beyond for details.



PS: the direct link to the spreadsheet can also be found in Post # 334.

Last edited by Z06Ronald; 04-22-2014 at 11:58 AM. Reason: Post Scriptum added
Old 12-03-2014, 01:35 PM
  #604  
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Default Highly recommended magazine

I highly recommend Corvette Magazine's next issue (April) which will be mailed to subscribers on 1/27/15 (issue #96).



You'll love one of the articles.

Current Issue Cover
Old 12-03-2014, 01:50 PM
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Thanks, Jim!
I Googled "Corvette Magazine" and found two hits that appear relevant:
www.corvettemagazine.com
www.corvette-mag.com

As CM is not available via book stores in my country, I'll try to order this issue online.
Old 12-03-2014, 01:58 PM
  #606  
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Originally Posted by Z06Ronald
Thanks, Jim!
I Googled "Corvette Magazine" and found two hits that appear relevant:
www.corvettemagazine.com
www.corvette-mag.com

As CM is not available via book stores in my country, I'll try to order this issue online.
I think the hard copy mag is issued first, then it appears online.
Old 12-03-2014, 01:59 PM
  #607  
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My favorite magazine.
Old 12-03-2014, 03:08 PM
  #608  
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$1800 battery to save 22 lbs


Really? WTF! You must have unlimited budged then.

Me....I would get this:




Brand: Davis Unified Ignition

Manufacturer's Part Number: 5575C

Part Type: Batteries

Product Line: Davis Unified Ignition Dyna-Batt Batteries

Summit Racing Part Number: DUI-5575C

Battery Usage: Starting

Volts: 12 V

Battery Terminals: Top

Battery Type: Dry cell

Length (in): 7.000 in.

Width (in): 3.000 in.

Height (in): 6.500 in.

Weight: 13.500 lbs.

Quantity: Sold individually


PRICE? $135.00 bones!
Old 12-03-2014, 03:32 PM
  #609  
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Originally Posted by Turbo2L
What's the likelihood of the OEM vs lightweight alternative parts being documented in a spreadsheet? Any takers on this? Great info hear but it's spread through 30+ pages.
https://www.corvetteforum.com/forums...post1587027944
Old 12-04-2014, 10:57 PM
  #610  
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Originally Posted by Da Z06

Really? WTF! You must have unlimited budged then.

Me....I would get this:




Brand: Davis Unified Ignition

Manufacturer's Part Number: 5575C

Part Type: Batteries

Product Line: Davis Unified Ignition Dyna-Batt Batteries

Summit Racing Part Number: DUI-5575C

Battery Usage: Starting

Volts: 12 V

Battery Terminals: Top

Battery Type: Dry cell

Length (in): 7.000 in.

Width (in): 3.000 in.

Height (in): 6.500 in.

Weight: 13.500 lbs.

Quantity: Sold individually


PRICE? $135.00 bones!
Care to test it for us and report back with long-term daily driver viability?
Old 12-04-2014, 11:08 PM
  #611  
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The battery's we use are used by the Corvette Race team and Cadillac Race team as well.

We actually ran a 6.6 lb Braille GU1R all year, and it started our 13.2:1 engine flawlessly, never lost a charge, and we drove our car almost daily. Even sitting for two weeks once, it started right up. It is $500.

Someday the Lithium Ion batteries will be much less expensive. I would trust them driving across the country.
Old 12-05-2014, 05:03 PM
  #612  
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Originally Posted by rjwz28
Care to test it for us and report back with long-term daily driver viability?
I drove it for about 18 months on a daily driven on a 530+RWHP NA Mustang and worked flawlessly.
Old 12-09-2014, 02:12 AM
  #613  
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Originally Posted by Da Z06
I drove it for about 18 months on a daily driven on a 530+RWHP NA Mustang and worked flawlessly.


Maybe I'll go with one of those when mine goes
Old 12-20-2014, 12:28 AM
  #614  
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I just love this thread!

I have a 2006 z51 wide body that I want sub 3000lbs and I am at 3106

I just want to say thanks for the ideas!!!
Old 12-20-2014, 04:10 AM
  #615  
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Originally Posted by Plano76vette
I just love this thread!

I have a 2006 z51 wide body that I want sub 3000lbs and I am at 3106

I just want to say thanks for the ideas!!!
What have you done to lighten it already?
Old 12-20-2014, 01:18 PM
  #616  
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I will have to check out the Braille GU1R this spring
Trying to get my 3100lb pig under control
Haha
Old 12-20-2014, 05:09 PM
  #617  
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Originally Posted by Da Z06

Really? WTF! You must have unlimited budged then.

Me....I would get this:

Brand: Davis Unified Ignition

Manufacturer's Part Number: 5575C

Part Type: Batteries

Product Line: Davis Unified Ignition Dyna-Batt Batteries

Summit Racing Part Number: DUI-5575C

Battery Usage: Starting

Volts: 12 V

Battery Terminals: Top

Battery Type: Dry cell

Length (in): 7.000 in.

Width (in): 3.000 in.

Height (in): 6.500 in.

Weight: 13.500 lbs.

Quantity: Sold individually


PRICE? $135.00 bones!
Originally Posted by rjwz28
Care to test it for us and report back with long-term daily driver viability?
Originally Posted by Da Z06
I drove it for about 18 months on a daily driven on a 530+RWHP NA Mustang and worked flawlessly.
Originally Posted by rjwz28


Maybe I'll go with one of those when mine goes
I just looked that battery up... it's listed as being "designed to work with motorcycles and personal watercraft that use 1/4 in. hole terminals". I guess there's no free lunch after all

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Old 01-29-2015, 03:05 PM
  #618  
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any reason you didn't ditch the power side mirrors for something small, more aerodynamic and carbon fiber?

i have no idea what the stock side mirrors weight but have heard of guys gaining 2mph+ in the standing mile by removing side mirrors and I'd have to think some of the manually adjustable lightweight carbon mirrors run on the supra and gtr race cars would weight a tiny fraction of stock corvette

end of 2015 I'm putting my pig on a weight loss diet and going to experiment with fabrication on using some light weight carbon side mirrors.
Old 01-29-2015, 03:26 PM
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Originally Posted by neverstop
any reason you didn't ditch the power side mirrors for something small, more aerodynamic and carbon fiber?

i have no idea what the stock side mirrors weight but have heard of guys gaining 2mph+ in the standing mile by removing side mirrors and I'd have to think some of the manually adjustable lightweight carbon mirrors run on the supra and gtr race cars would weight a tiny fraction of stock corvette

end of 2015 I'm putting my pig on a weight loss diet and going to experiment with fabrication on using some light weight carbon side mirrors.
Please keep us informed by posting details of the weight loss diet progress if possible.
You are aware that CF side mirrors are available via one of the forum vendors, aren't you?
At times I wonder why side mirrors are used at all during (endurance) racing, instead of camera's and monitors. I know, of course, that the C7.R uses a backup camera to complement the mirrors. But why the mirrors aren't replaced completely is beyond me. Regulations possibly?
Old 01-29-2015, 03:33 PM
  #620  
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what I will be looking at is to put on some side mirrors that I can actually remove very easily because all I use my car for is street driving (when the mirrors will be on) and standing 1/2 and full mile racing (where mirrors serve no purpose and will be removed. Primarily for aero benefit but some small weight loss is not bad either.

So I haven't taken the door apart yet to see how it would work but initial thoughts are to remove the power stock side mirrors and replace with something like these APRs or perhaps some craftsquare mirrors

http://www.southerncarparts.com/niss...T8caAsd78P8HAQ

and then, if it works as I hope, I can easily remove them when I do 1/2 mile racing


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