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Author Topic: The weight saving thread  (Read 277322 times)
Ian Brown
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Posts: 52


« Reply #840 on: September 02, 2018, 20:24:03 pm »

Hi Ian,

  Out of curiosity, which battery did you use?

   thanks,

The battery i'm using is a 'Super B' B7800 lithium ion which is tiny (118x80x93mm) It weighs 1320g, capacity 7.8ah, cranking current 450a but it's only recommended for engines up to 1400cc and its not cheap! I'll be moving it from the passenger footwell to an inch away from the starter motor to have the battery cables as short as possible to shed even more weight.
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15.08@87.5mph (140.8kph)

1285cc/44 webers 126bhp@7800rpm
778kg (1715lb) including driver
modnrod
Hero Member
*****
Posts: 800


Old School Volksies


« Reply #841 on: September 06, 2018, 01:43:13 am »

Original OEM steel front bumper/mounts = 7.7kg (without mounting bolts).

Bent flat alloy mounts bolted to a "thin summer chrome only" cheap bumper = 3.2kg.

 Cool
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JeeWee
Jr. Member
**
Posts: 67


the Netherlands


« Reply #842 on: September 06, 2018, 13:09:27 pm »

Does anyone know if type 3 rear brake drums are availabe in aluminium? hoped that someone has made that as they are heavy as hell. I thought of modifing a LUPO 3L aluminium rear drum for this but that is not so easy...
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vwfye
Sr. Member
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Posts: 416


Into 3's, 4's, Rods and even Rats!


WWW
« Reply #843 on: September 28, 2018, 04:33:34 am »

I'm a type 3 guy and I've never seen aluminum rear t3 drums
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64 No'back Speedster
65 Sunroof Notchback
Little Giant Killer III


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Bruce
Hero Member
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Posts: 1391


« Reply #844 on: September 29, 2018, 09:01:16 am »

I thought of modifing a LUPO 3L aluminium rear drum for this but that is not so easy...
Do you have any pics of these Al drums?
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JeeWee
Jr. Member
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Posts: 67


the Netherlands


« Reply #845 on: January 09, 2019, 13:53:38 pm »

here is a picture. Only used on the lupo's with the 1.2l tdi engine also called 3L. Of course a front wheel drive car.
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Bruce
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Posts: 1391


« Reply #846 on: January 10, 2019, 09:31:55 am »

If I assume the bolt pattern is 4x100, the diameter looks pretty small.  Too small for our use is my guess.  But I bet they're light!
Can you measure the inside diameter?  Maybe post a pic of the inside?
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Ian Brown
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Posts: 52


« Reply #847 on: July 07, 2019, 18:54:31 pm »

My new rims have just arrived from the States Grin
I wanted to switch to lighter wheels for the 1965 Beetle that I compete with in Historic Touring Car racing (old wheels were JGE Raders) modern rims and split rims aren't allowed so i've opted for 'Vintage 190' Porsche 356 style alloys. Not as light as Tecnomagnesio rims but the Vintage 190 versions are 10 times cheaper!

Vintage 190 claim's that switching to a set of their wheels will save up to 40lbs....I knew this claim was optimistic to say the least, but they'd still be lighter than my old Raders, so ordered them anyway. I'm still not sure how they came to this figure of a 40lbs saving (must have included the weight of the hubcaps, tyres and balancing weights Huh) As you can see they are still a decent weight saving and look much sexier than the usual Brazilian made steel 356 copies. BTW these Vintage 190 wheels can be used with early style hubcaps (clips and screws included)





For me the total weight saving on all 4 wheels is 4122grams (just over 9lbs)....That's going from 5" Raders all round with alloy rear wheel spacers and switching to Vintage 190 (4.5" front, 5.5" rear) no wheel spacers required with these due to the offsets.

For racing i'll be using two sets of wheels/tyres. Vintage 190 (on worn tyres) for the dry and steel 356 copies (on fresh tyres) for the wet where the extra wheel weight isn't such an issue. I'll be painting them all satin black ( Cry Boo I hear you cry) but the car will be repainted in 'VW Medium Brown' so black rims will look a lot  Angry meaner.

BTW plans are afoot to build myself a race car transporter from a T25 (T3, Vanagon) single cab pickup...It's gonna be the dogs danglies!

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15.08@87.5mph (140.8kph)

1285cc/44 webers 126bhp@7800rpm
778kg (1715lb) including driver
richie
Hero Member
*****
Posts: 5451



« Reply #848 on: June 21, 2020, 15:57:42 pm »

So during lockdown rather than sit on my ass doing nothing I decided to tick off one of my "want to do" list so I have been studying how to make real carbon lightweight panels and finally took the plunge to buy the equipment needed
Next I started by making a mold of some parts I wanted to try to re create, then moved on to trying the vacuum infusion process which looks really easy but isnt!!! Roll Eyes,I have had a few failures[mostly cosmetic and a couple that were about 90% good but finally cracked it and have made some 67 vented cabrio style decklids, my goal was to produce a decklid with hinge panel and number plate light surround weighing less than 1kg, so far best lightweight "road" version is 1100grams so nearly there, and race weight version is less than 950grams!!! As you can see from the pics even the stock number plate light is stupid heavy compared to what a carbon version can be Wink

I will be making a few to sell now and next will be some stock style oversize rear wings/fenders that bolt on like stock Shocked Grin
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Cars are supposed to be driven, not just talked about!!!   


Good parts might be expensive but good advice is priceless Wink
richie
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Posts: 5451



« Reply #849 on: July 14, 2020, 18:19:30 pm »

  Shocked Grin
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Cars are supposed to be driven, not just talked about!!!   


Good parts might be expensive but good advice is priceless Wink
brewsy
Full Member
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Posts: 224



« Reply #850 on: July 14, 2020, 22:38:53 pm »

Richie..

WTF??
Thats awesome. Finish looks great too.

How much for the vented 67 lid, light and set of hinges?

What else you got??
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ibg
Jr. Member
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Posts: 79


« Reply #851 on: July 15, 2020, 01:58:08 am »

That's awesome, how thick is the layup, do you think it would be stiffer than aluminium?

this is my favourite thread
ta Ian
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Eddie
Hero Member
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Posts: 761



« Reply #852 on: July 15, 2020, 06:49:11 am »

No No Richie no one has a 67,
Just make 68 cabrio decklid.  Grin
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Regards Edgar

" Type 4, it is a completely different engine. You have to drive one to understand! "
richie
Hero Member
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Posts: 5451



« Reply #853 on: July 15, 2020, 17:59:55 pm »

Richie..

WTF??
Thats awesome. Finish looks great too.

How much for the vented 67 lid, light and set of hinges?

What else you got??

Thanks, 500 for all of it to be painted, 600 if its show finish in pure carbon Shocked
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Cars are supposed to be driven, not just talked about!!!   


Good parts might be expensive but good advice is priceless Wink
richie
Hero Member
*****
Posts: 5451



« Reply #854 on: July 15, 2020, 18:01:52 pm »

That's awesome, how thick is the layup, do you think it would be stiffer than aluminium?

this is my favourite thread
ta Ian

It is 4.5mm thick for the bonnet hinges with several layers of carbon in the lay up, they are really strong and yes aluminium hinges will bend much easier than these will Shocked Cool
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Cars are supposed to be driven, not just talked about!!!   


Good parts might be expensive but good advice is priceless Wink
richie
Hero Member
*****
Posts: 5451



« Reply #855 on: July 15, 2020, 18:03:03 pm »

No No Richie no one has a 67,
Just make 68 cabrio decklid.  Grin


I actually have a 68 cabrio decklid as well that needs some bodywork and painting 1st but my aim is to do that over winter and then offer that as well and a 1303 lid
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Cars are supposed to be driven, not just talked about!!!   


Good parts might be expensive but good advice is priceless Wink
bean
Jr. Member
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Posts: 53


« Reply #856 on: July 15, 2020, 18:27:12 pm »

almost wish i hadn't sold my 67! just so i could have one of those decklids - look seriously good
of course that would then have meant I'd have needed to get a carbon valance to replace the fibreglass one ( that i didn'f fit and still have )
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Jeff Paull
Newbie
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Posts: 2



« Reply #857 on: July 17, 2020, 06:22:53 am »

Lithium Batteries are starting to be slightly better priced. This one was $320 including shipping on ebay from China. 6.8lbs. Maintains at 13.8-14.3 volts instead of the typical 13.4 like lead acids. This is nice for running without a belt as it will keep the ignition happy as it will be sitting at 12.5-13.4 or so when not charging at all.

600cca, 40ah.

Coil sitting there just as a reference to size of the battery.
« Last Edit: July 17, 2020, 14:59:06 pm by Jeff Paull » Logged
Frallan
Hero Member
*****
Posts: 862



« Reply #858 on: July 21, 2020, 07:29:02 am »

https://www.amazon.com/Replacement-Automobile-Universal-Phosphate-Protection/dp/B082R2GL5B

USD 260 inc shipping
I like this!  Plus several others like the 70ah at 5 kg.
https://www.amazon.com/Replacement-Automobile-Universal-Phosphate-Protection/dp/B082R2ZC67?th=1

[ Attachment: You are not allowed to view attachments ]
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richie
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Posts: 5451



« Reply #859 on: August 02, 2020, 15:59:08 pm »

Couple more pieces i made, bumper was straight out the mold this morning ,its 55mm wider to fit wider wings/fenders but regular width coming next and a front Smiley Then trimmed and weighed along with the bumper support brackets
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Cars are supposed to be driven, not just talked about!!!   


Good parts might be expensive but good advice is priceless Wink
richie
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*****
Posts: 5451



« Reply #860 on: August 02, 2020, 17:01:04 pm »

Even very light parts can be made lighter  Wink
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Cars are supposed to be driven, not just talked about!!!   


Good parts might be expensive but good advice is priceless Wink
andy198712
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Posts: 1048



« Reply #861 on: August 03, 2020, 10:07:23 am »

Jesus how did i miss this!!  Cool

thats some huge weight savings!

What i always found wasn't available in the UK was carbon or even glass short front bonnets...


That are amazing, i couldn't bring my self to paint them though!  Grin
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richie
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Posts: 5451



« Reply #862 on: August 03, 2020, 20:08:10 pm »

All fits good  Grin
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Cars are supposed to be driven, not just talked about!!!   


Good parts might be expensive but good advice is priceless Wink
Dalland
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Posts: 59


« Reply #863 on: August 04, 2020, 12:20:24 pm »

Looks stunning! Grin

Since you are on a roll.. Would you consider making the front bumpers for late style beetle without the "bumper lights"?
I have yet to find anybody making this versions. Roll Eyes
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richie
Hero Member
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Posts: 5451



« Reply #864 on: August 04, 2020, 18:07:50 pm »

Looks stunning! Grin

Since you are on a roll.. Would you consider making the front bumpers for late style beetle without the "bumper lights"?
I have yet to find anybody making this versions. Roll Eyes

Hey

yes it is possible if i can find a really good bumper to take a mold from to use

cheers Richie
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Cars are supposed to be driven, not just talked about!!!   


Good parts might be expensive but good advice is priceless Wink
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