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Author Topic: The weight saving thread  (Read 143591 times)
Bruce
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« Reply #780 on: April 15, 2016, 10:22:51 AM »

  I would like to keep the door windows functional and keep them from getting scratched up.
Take the glass out of the lower channel and go to a glass shop.  Ask them to make you two new ones from 4mm glass.  Then get them to temper it.  20% weight savings!
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hotstreetvw
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« Reply #781 on: April 15, 2016, 14:53:14 PM »

Not a bad idea.  I will consider that once the car is painted and seals are replaced so I don't scratch them up.

I emailed Jack @ Jaycee, his rear disc brakes are 8lbs per side.  The website says 6.2 lbs are rotating, I'm guessing per side.  I need to pull a t3 drum assembly and weight it.
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hotstreetvw
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« Reply #782 on: April 16, 2016, 01:40:06 AM »

T3 drum + ISP West Chromoly hub + Studs = 16lbs/side, all rotating weight.  There is no doubt these things are strong as hell, but come with a weight penalty.  This doesn't include the backing plate, shoes, wheel cylinder, hardware or axle nut.  My guess is there is at least 4-5 more pounds there.

I was just on the phone with Shawn regarding my pistons/cylinders, cam etc and asked about his brakes.  He took the time to weight a hub+rotor+caliper+pads.  The only thing he didn't have was the backing plate and studs, less than 10 pounds.

Potential savings of 20+ lbs with a lightweight disc brake swap, with maybe half of that being rotating weight.
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Pas
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« Reply #783 on: August 16, 2016, 20:17:44 PM »

phil and pete shattock have a weight saving obsession, I think pete removes his Fram filter forracing!

So if you do like them and take it ALL THE WAY how light will your pan car be?



 



Well 8 years after you asked this question I can finally report the results of my own weight saving efforts: 525kg/1157 lbs.

All up wet weight, 1956 oval, full pan car with "conventional" running gear, suspension etc. roll cage tagged to 8.5 seconds. This is in race trim, no cooling, charging, working lights, wipers etc.

I've got a few more ideas I want to try so this may well go down.
« Last Edit: August 16, 2016, 20:28:28 PM by Pas » Logged

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leec
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« Reply #784 on: August 16, 2016, 20:51:30 PM »

Nice one, that is light  Cheesy
Is Phil in the garage drilling more holes in stuff now?
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Pas
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« Reply #785 on: August 17, 2016, 00:48:14 AM »

Nice one, that is light  Cheesy
Is Phil in the garage drilling more holes in stuff now?

Thanks Lee

My car is at Phi'ls at the moment for some set up, he's the one who weighed it.

No doubt he will be whacking his car with the lightening stick again this winter  Grin
« Last Edit: August 17, 2016, 00:57:39 AM by Pas » Logged

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PPRMicke
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« Reply #786 on: August 17, 2016, 16:09:40 PM »

  Alu 7075 


/// Micke
« Last Edit: August 17, 2016, 16:31:35 PM by PPRMicke » Logged
NoBars
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« Reply #787 on: December 12, 2016, 01:31:56 AM »

I don't know how much, grams. Going to an aluminum cell, therefore this is not needed any longer. I'm sure an early grill without gauge is lighter still, but that will have to wait for that elusive and magical "someday" when the car gets repainted
« Last Edit: December 12, 2016, 04:10:29 AM by NoBars » Logged

My real name is Anthony Consorte.
NoBars
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« Reply #788 on: December 16, 2016, 18:44:57 PM »

Speedo felt unloved.
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My real name is Anthony Consorte.
NoBars
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« Reply #789 on: December 16, 2016, 18:47:13 PM »

I wanted the high beam indicator and turn signal lights to work.
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My real name is Anthony Consorte.
wph
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« Reply #790 on: February 26, 2017, 18:02:32 PM »

Wink

I wonder if these headlight lenses are available, could use a pair.....

Pekka
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Nikke
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« Reply #791 on: February 26, 2017, 18:10:32 PM »

A Danish(or Belgian) guy made a pair for my bus..think his name was Griebel..nice guy..
« Last Edit: February 26, 2017, 18:12:38 PM by Nikke » Logged
T11964
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« Reply #792 on: February 26, 2017, 19:37:40 PM »

Carsten Griebel is from Denmark  Smiley
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NoBars
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« Reply #793 on: March 17, 2017, 12:01:27 PM »

Not much real weight saved, but a high percentage.
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My real name is Anthony Consorte.
numbnuts
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« Reply #794 on: March 18, 2017, 08:29:57 AM »

Nice hinges, are you making any more?

Also, any body have Carsten Griebel contact details? I have no headlight lenses so may as well go for the lighter option, can tey come without the jpm logo?
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NoBars
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« Reply #795 on: March 18, 2017, 16:18:23 PM »

Nice hinges, are you making any more?

Not at this point, Sorry. I made 5 sets and they are all spoken for.

I don't know that I'd reccomend them for a steel hood. I'm using on a carbon one, as are all the ones I sold.

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My real name is Anthony Consorte.
richie
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« Reply #796 on: March 18, 2017, 18:43:36 PM »

Nice hinges, are you making any more?

Also, any body have Carsten Griebel contact details? I have no headlight lenses so may as well go for the lighter option, can tey come without the jpm logo?

I make them as well, just like a regular bosch style lense, LHD and RHD  Smiley

cheers Richie
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Still not giving a fcuk about what they think or say,

Say it=Do it, not excuses


  50
Bruce
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« Reply #797 on: March 19, 2017, 19:07:27 PM »

Can you post a pic, Richie?

Local to me is Al B.  We recently pulled apart his heavyweight B 5speed for some lightening.
Here's 1st and 2nd gear idlers for the pinion shaft.
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Bruce
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« Reply #798 on: March 19, 2017, 19:09:28 PM »

Here's the start of 3rd gear on the pinion shaft.
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Bruce
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« Reply #799 on: March 19, 2017, 19:11:19 PM »

The finished 3rd, along with 5th for the main shaft.
« Last Edit: March 19, 2017, 19:20:14 PM by Bruce » Logged
Bruce
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« Reply #800 on: March 19, 2017, 19:17:26 PM »

His 5 speed is one of the first generation run, so it uses the same mid mount as a 4 speed.  Here he drilled the original Berg heavyweight steel mount. Polishing a turd, IMO.  He was happy to get it under 2 kilos.  I showed him the Al 4 speed one I made that's now less than 3/4 of a kilo.

I'll let Al come on here to post the numbers.
« Last Edit: March 19, 2017, 19:25:12 PM by Bruce » Logged
NoBars
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« Reply #801 on: March 20, 2017, 00:14:54 AM »

I swear every time I break the trans I'm going to pull it apart and do that. I never do...

Nice work.
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My real name is Anthony Consorte.
richie
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« Reply #802 on: March 20, 2017, 04:59:17 AM »

Can you post a pic, Richie?


Will do when I get a chance, had a look and no pics of them on this laptop though

cheers Richie
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Still not giving a fcuk about what they think or say,

Say it=Do it, not excuses


  50
numbnuts
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« Reply #803 on: March 20, 2017, 18:50:33 PM »

Nice hinges, are you making any more?

Also, any body have Carsten Griebel contact details? I have no headlight lenses so may as well go for the lighter option, can tey come without the jpm logo?

I make them as well, just like a regular bosch style lense, LHD and RHD  Smiley

cheers Richie

Cheers Richie I sent you a text about it
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numbnuts
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« Reply #804 on: March 20, 2017, 21:55:33 PM »

I was looking for light weight batteries and came across this used by some guys from a racing micra club:

https://www.rapidonline.com/electrical-power/12v-18ah-sla-battery-hzb12-18-18-1172?utm_source=AffWin&utm_medium=Affiliate&awc=1799_1490042986_b093f4a8f9387e7972a54034fdcf7dc1

Might be of use, but from what I can see the Amps may not be high enough at 18A
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DWL_Puavo
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« Reply #805 on: March 21, 2017, 09:40:24 AM »

In theory, that 18Ah battery should be able to crank normal VW start for about 10 minutes, and it easily should be able to provide you with the starting power needed. For example: 1,2kW, 12V starter = 100A. 18Ah / 100A = 0,18h = ~11 minutes. Cold crancing amps for the battery is stated 732A. So if the real numbers of the battery are even 1/5 of the stated, it should easily work. Throwing another 100 to the equation, you could have another couple of kg's removed by moving to li-ion battery.

BTW I love that this thread is alive again!

Top tip! If you heat the air inside your drag race beetle from 20c to nice sauna temperature 80c, you save weight about half a kilo!
« Last Edit: March 21, 2017, 09:50:05 AM by DWL_Puavo » Logged
numbnuts
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« Reply #806 on: March 21, 2017, 13:39:07 PM »

Thanks! That battery fits in with my very limited budget so I will go with that one
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PPRMicke
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WWW
« Reply #807 on: March 21, 2017, 22:22:29 PM »

850 g  Smiley

/// Micke
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