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So I've read in another thread that Porsche dealerships are a good place to look for installation of a LSD. Some shops are more mod friendly than others. One is Rector Porsche in Burlingame. I called them up and it turns out if you call the service department, you may not reach the guy in charge of the LSD installs. So just so others won't run through the same trouble I did, here's the contact info for that guy you SHOULD be talking to:
Paul Medena
650-348-0111 x143
LSD - Limited Slip Differential
A limited slip differential (LSD) is a modified or derived type of differential gear arrangement that allows for some difference in rotational velocity of the output shafts, but does not allow the difference in speed to increase beyond a preset amount. In an automobile, such limited slip differentials are sometimes used in place of a standard differential, where they convey certain dynamic advantages, at the expense of greater complexity.
The main advantage of a limited slip differential is found by considering the case of a standard (or "open") differential where one wheel has no contact with the ground at all. In such a case, the contacting wheel will remain stationary, and the non-contacting wheel will rotate freely– the torque transmitted will be equal at both wheels, but will not exceed the threshold of torque needed to move the vehicle, thus the vehicle will remain stationary. In everyday use on typical roads, such a situation is very unlikely, and so a normal differential suffices. For more demanding use however, such as driving off-road, or for high performance vehicles, such a state of affairs is undesirable, and the LSD can be employed to deal with it. By limiting the velocity difference between a pair of driven wheels, useful torque can be transmitted as long as there is some friction available on at least one of the wheels.
To see the installation of a Quaife LSD/TBD unit Click Here
I had my Quaife installation done at Rector. They follow the factory service manual procedure and remove the transmission from the car to do the differential shimming procedure. The resulting cost is about $1500.
DaveN007 has been working with another shop (I don't think it's a Porsche dealer, but I'm not sure) to get his Quaife installation done without removing the transmission from the car. The shimming will be based on careful, accurate measurements of the existing and Quaife differentials. This approach has the potential to save a lot of money on the installation cost (I'd guess an $800 savings could be possible). PM DaveN007 for details.
I attempted to kill 2 birds with one transmission removal by having Rector install a Sharkwerks lightweight flywheel while they were at it. Since the transmission has to come off to get the flywheel in, there was no penalty to doing the Quaife installation and differential shimming at the same time.
Paul is a great guy and particularily understanding of us folks wanting to tweak/tamper our P-cars so you're ingreat hands there
Fort, hope you like the LWF
__________________
Alex "Sharky" Ross
Shark Werks: To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts.
Phone: 510-651-0300
Email: To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts.
Northern California's Porsche Performance, & authorized Evolution Motorsports/GIAC dealer and installation center
Tech Art, HRE, Fikse, Brembo, AWE, Bilstein and more.
Ze Cars...
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1979 911 Turbo (SOLD)
2007 Audi A3 DSG S-Line
2007 FJ Cruiser
2004 EVO VIII
2001 Jaguar XJR (wicked burnout machine)
I had my Quaife installation done at Rector. They follow the factory service manual procedure and remove the transmission from the car to do the differential shimming procedure. The resulting cost is about $1500.
DaveN007 has been working with another shop (I don't think it's a Porsche dealer, but I'm not sure) to get his Quaife installation done without removing the transmission from the car. The shimming will be based on careful, accurate measurements of the existing and Quaife differentials. This approach has the potential to save a lot of money on the installation cost (I'd guess an $800 savings could be possible). PM DaveN007 for details.
I attempted to kill 2 birds with one transmission removal by having Rector install a Sharkwerks lightweight flywheel while they were at it. Since the transmission has to come off to get the flywheel in, there was no penalty to doing the Quaife installation and differential shimming at the same time.
This is Carlsen Porsche in Redwood City. Christian Glass is the tech. According to him, they send the Quaife and your diff to a Porsche racing shop/machine shop where they measure the differences and with that info he can accurately set preload and backlash and shim appropriately. They are also going to do my BBI pulley and Christian said that he uses a smaller serpentine belt when he installs the Mantis pulleys to keep the factory tension...but will have to measure the BBI to see what is needed.
I am debating doing a LWFW at the same time. That way I will have the tranny out for the Quaife. No one disagrees that the Quaife can be perfectly installed with the tranny out, but there are folks skeptical about the" leave in the tranny" method. I may have to buy the LWFW from Sharkwerks and have Carlsen do it. Sharkrwerks is too busy with Turbos and Sheik's cars to fit me into the schedule while I am still young.
JUST KIDDING ALEX!
I have some events in the next few weeks that I would really like to be ready for and they are booked.
Originally the plan was to have my car at Carlsen on Monday. That didn't work out too well.
Hot tip: If your license expires, you can't rent a car. HAPPY BIRTHDAY!
__________________
To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts.
I had my Quaife installation done at Rector. They follow the factory service manual procedure and remove the transmission from the car to do the differential shimming procedure. The resulting cost is about $1500.
DaveN007 has been working with another shop (I don't think it's a Porsche dealer, but I'm not sure) to get his Quaife installation done without removing the transmission from the car. The shimming will be based on careful, accurate measurements of the existing and Quaife differentials. This approach has the potential to save a lot of money on the installation cost (I'd guess an $800 savings could be possible). PM DaveN007 for details.
I attempted to kill 2 birds with one transmission removal by having Rector install a Sharkwerks lightweight flywheel while they were at it. Since the transmission has to come off to get the flywheel in, there was no penalty to doing the Quaife installation and differential shimming at the same time.
FF-
Have you posted your LWFW impressions?
__________________
To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts.
This is Carlsen Porsche in Redwood City. Christian Glass is the tech. According to him, they send the Quaife and your diff to a Porsche racing shop/machine shop where they measure the differences and with that info he can accurately set preload and backlash and shim appropriately. They are also going to do my BBI pulley and Christian said that he uses a smaller serpentine belt when he installs the Mantis pulleys to keep the factory tension...but will have to measure the BBI to see what is needed.
I am debating doing a LWFW at the same time. That way I will have the tranny out for the Quaife. No one disagrees that the Quaife can be perfectly installed with the tranny out, but there are folks skeptical about the" leave in the tranny" method. I may have to buy the LWFW from Sharkwerks and have Carlsen do it. Sharkrwerks is too busy with Turbos and Sheik's cars to fit me into the schedule while I am still young.
JUST KIDDING ALEX!
I have some events in the next few weeks that I would really like to be ready for and they are booked.
Originally the plan was to have my car at Carlsen on Monday. That didn't work out too well.
Hot tip: If your license expires, you can't rent a car. HAPPY BIRTHDAY!
ROFL! Blame your Shiek-brother Chris for his 700hp shenanigans But I hear ya' and I'm sorry we're booked (we're not a big place so it gets like that) so far out (I've been working weekends to try and get ahead lol!). Having said that, Christian is a _really_ good guy and I've trusted him with my cars (life?) plenty of times. If you need the LWF let me know as I can usually get it the same day or at least by the next...
__________________
Alex "Sharky" Ross
Shark Werks: To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts.
Phone: 510-651-0300
Email: To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts.
Northern California's Porsche Performance, & authorized Evolution Motorsports/GIAC dealer and installation center
Tech Art, HRE, Fikse, Brembo, AWE, Bilstein and more.
Ze Cars...
To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts.
To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts.
To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts.
To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts.
To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts.
1979 911 Turbo (SOLD)
2007 Audi A3 DSG S-Line
2007 FJ Cruiser
2004 EVO VIII
2001 Jaguar XJR (wicked burnout machine)
Until 
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