Mythbuster: continuing project thread of my 1303 '75

[Sandeep]

Great choice of music in the video. "don't mess with my ducktail"
Very true !

Sandeep

[Wally]

After mentioning I wanted to upgrade the diff, a belgian friend pointed me to a used G50 LSD, which turned out to be a 996 GT2/3 Motorsport unit with asymmetrical 40%/65% ramps.
To say I was pleased afterwards is an understatement
There is a risk these are well worn and as this one was stored for 5 years. As if I needed any extra persuation to open up a new part











Here you can see the asymmetrical part of the diff in the different ramps where the spider gear is:


These are the friction disks. They are 2.7mm thick and that seems to be a typical value from reading some 911 boards on the matter:


When I took the first cover off, there was quite some 'spring' pressure from the concave ('belleville') washer that sits at both ends, so I think there is some useage left in this unit.
Not sure if I can just put the washers at both ends over and install this as is. Some say you can as this is an original unit and they have all the same measurements, others say you shouldn't.

[evilC]

It says its made in UK. Do you know who by? maybe they can shed some light on the state of it?

Clive

[Wally]

Originally Posted by evilC

It says its made in UK. Do you know who by? maybe they can shed some light on the state of it?

Clive

Apparently, all original Porsche diffs are inscripted 'made in the uk', but I really don't know by who.

[70Turbobug]

Looks like you´ve made a great deal - congrats Wally! Looking at the pics it seems to have very little wear.

[spannermanager]

It looks a minter to me, no wear on the fixed plates at all, at a guess id say xtrac made it, they subcontract for most trans manufacturers, i watched as my ZF was rebuilt and tested with a torque wrench to the slip point. mine was 25/60. a good find. getting it in there is best.

[Bruce.]

A comment online by paul at Guard suggests the oem is GKN.

However they are often swapped out for motorsport

[wrenchnride247]

Nice find Wally! Can't wait to hear about the handling.

[typ4boy]

Originally Posted by Bruce.

A comment online by paul at Guard suggests the oem is GKN.

However they are often swapped out for motorsport

Correct i have a couple of lsd,s from early gt3,s also made by gkn, all the best stuff comes from the u.k dont you no that ????

[Wally]

Originally Posted by typ4boy

Correct i have a couple of lsd,s from early gt3,s also made by gkn, all the best stuff comes from the u.k dont you no that ????

To prove Lee's point even more (I hate it when he's right again ): GKN is a german company that only supplied the friction plates AFAIK. Its only those plates that are '****' as Guard mentioned sometimes, the LSD housing, spider gears and all are whats 'made in the uk'...(afaik)

[NO_H2O]

Nice looking diff. Stack it up and give it a shot.

[TSAF]

Originally Posted by NO_H2O

Nice looking diff. Stack it up and give it a shot.

Yeah that's right. Stack it up and go to a track for "play".

[onixbonilla]

Hi Wally. I know there are a lot of great work and stuff on your car but I wanted to tell you that you manage to build the only decklid wing that looks the part on a Beetle! I won't hesitate to use one of those Ducktails on my 1303!!!

[70Turbobug]

I agree to that! I think that the color makes a big difference.In white it isn´t as noticeable.In red or something similar it would probably stick out a lot more.However the ducktail gave Wally´s car its character I think. And you can´t miss Wally on the track....it´s the one with the ass in the air

[Wally]

Originally Posted by onixbonilla

I wanted to tell you that you manage to build the only decklid wing that looks the part on a Beetle!

Thanks man. Much appreciated!
And to think it started of with a lot of scepsis while all it was is 'function over form' in the first place
Not sure what the track driving results in (corner speeds), but I may extent the ducktail thing (not literally though) and add a proper downforce giving wing, much like porsche does with the 997 GT3/GT2RS series...