Terry Adams

As my wife will eventually learn when she finds out I bought this, "it's a safety thing".
Seriously, when my LSD was working, I did experience it saving my bacon exiting a corner on a slightly damp remote country road. Soon as we have 4, I am placing my order.

kary993

If I were you guys and you are going to put in a Guard LSD I would get the 50/80. I have driven many cars with these including my own at 50/80 and it is n ot an issue on the street and handles far better overall. I would not go with the 80/80 for street but the 50/80 is not an issue my opinion and has only benefits in accerlation and braking. For those that do not have LSD a 40/60 is a great improvement and for those that have a stock Porsche LSD it willnotbe that noticeable to get a 40/60.

IMHO

BTW, you guys might have obtained a bigger discount had you worked with a vendor that works with Paul. Off the street does not work with him.

Terry Adams

kary, unless I am missing some other input, I took this to mean that there is not much room in your pricing for you to offer a group buy as a RL Sponsor. Nothing wrong with that, nor with Guard protecting his dealers by not offering much for a group buy.

I note that there is a 50/80 Guard unit for $2210 on your site , but I excerpted the following comments from the Velocity article on the Guard website to come to my own 40/60 choice:
"The 993 style street cars with the limited slip option almost all came with a 25/65 limited slip."
"The standard Motorsports version of this limited slip (for the 993 Cup Cars and the 993 RSRs) was designated a 45/65 limited slip. Motorsports also offered differentials and components that allowed one to modify these percentages a fair amount. One could have a 50/80 limited slip, for instance.
These wonderful 45/65 Motorsport limited slips had a few problems. We (and others) began to see cracks in some of the differential cases at the base of the ring gear."
"One of the aftermarket suppliers (Paul Guard at Guard Transmissions) offers these differentials in several versions, all with billet chromoly cases." (End quote)
I liked my (long ago worn out) 25/65 for the street, and would be comfortable with a 40/60, but my layman's intuition tells me I am driving recklessly on the street if I am invoking the higher torque values of the 50/80.

kary993

My initial laughter was not intended to discourage you from contacting a vendor or myself but I thought it funny that folks think they could get 15% off these units by cold calling the manufacturer of these units.

There are a few street versions of stock LSD which you are correct is a 25/65 unit and a 22/40 for the C4's. The G50/30/31/32 units used the 40/65 units and did have issues with the cases cracking, but you will not have that issue if you only drive on the street so one might ask why a street car would need an expensive billet case for a limited slip?

As far as reckless driving I drive my car on the street and do not need to drive recklessly to make use of it. The use of a LSD on the street does not require reckless driving, ever drive in the rain and loose traction accelerating?

Anyway, I still wonder what you really need in such a highly engineered LSD that will be driven non-recklessly ? These are really best used on the track for sure but if you do install on your street car you will have a nice unit you will never see which is the unfortunate part of these nice units.

Monique

I think so as well.

Gurus Chris Walrod and uncle Viper think thusly too.

Terry Adams

Thanks kary993. You are right about the over-engineering, but I think we all have this mod sickness that starts with an over engineered car. I also agree it does not take reckless driving to get the benefit of these on the street. I plan to put these units on my dining table for a week or 2 before I get them installed.

NoSubEDU

So where are we on the count...3 of us?

chris walrod

Kary brings up a good point. The reasoning behind my recommendation of the 40/60%lock version is the concern of having too much lock in a street car. I say this, in part, because of my teenage experiences with tight diffs (I used to shim an already tight positraction units in Chevelles and Camaros etc.) and driving on slick roads.

Granted, ramp type (powerflow) differentials are way more advanced than that of the Eaton or Borg Warner type positraction units found in muscle cars, but a concern nonetheless.

Kary is right, a person already with a LSD may not realize a difference with the a new(40/60) LSD, but hopefully one will have a LSD that will stay consistent over a much longer period of time.

If I could pick from any ramp setup, 40drive and 75coast would be my choice..

kary993

You are so right! These units are sweet looking and viewing them for a while is worth the wait before installing

Monique

Group Buy tally.. so far:

Monique
Terry Adams
noSubEDU
mleds
the_buch

Some others committed but have not officially signed up. Some I know are on holidays.

Keep those additions coming. At 10 we go down to $2050 per unit!!

The following other members showed interest:

David
VUUGTI
95 993
bonzaisan
SinVR
WarpMan
AGDAMIS
Todd B
d993

How about it dudes???

WarpMan

Monique,
Put me in for 40/60.

Monique

Here is latest latest list.

'95 993

Monique,

sorry for the delay but only got back from the slopes on Sunday, put me down for a 40:60, any idea of delivery times as my car is booked into the shop next week and the engine is coming out, so would be a good time for the LSD to go in :-) John

Terry Adams

My installer has a 2-3 week lead time, and I have a bunch of miles to put on my car this year, so I would like to get started ASAP.

Monique

I knew you were skiing :-) Would you want your unit packaged with mine then delivered from my work base? I am in Burgess Hill, W Sussex.