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New to this forum. I'm a PCA member driving a lot of DEs mostly at VIR with my 07 BoxsterS. My car is unmodified except for DEs I use track tires and Pagid orange pads. As my track experience is growing, the car's safety if I or someone screws up is starting to concern me. The hoops aren't enough.
As early Caymans will start coming off lease soon, I am thinking of building a track only Cayman. Stripping the car, new 3.8 motor (X51?), lsd, full cage etc. Probably get Farnbacherloles to do it as I am on the east coast. Donor car would be without PASM or Sport Chrono
Any suggestions on what to do to the car (or not do) ? Keeping it streetable is not important. I know I'll be in GT3 territory ($$$) but there is just something about the mid-engine config...
Thanks
PASM - Porsche Active Suspension Management
This active damping system offers continuous adjustment of individual damping forces based on current road conditions and driving style.
The driver can choose from two setup modes, ‘Normal’ and ‘Sport’, using a separate ‘damper’ button on the center console. ‘Normal’ mode is designed for general road driving and circuits with uneven tarmac. ‘Sport’ mode is intended for smoother track surfaces, where the harder settings help eliminate pitch and roll.
In either mode, PASM continuously evaluates the current conditions while automatically selecting the corresponding damper rates from the respective set of mapped values.
A range of sensors are used to monitor the movement of the body under acceleration, braking and cornering maneuvers, as well as on poor road surfaces. The PASM control unit then evaluates this data and modifies the damping force on each individual wheel in accordance with the selected mode. The result is a significant reduction in body movement as well as a better grip on the road.
For example: if ‘Sport’ mode is selected, the suspension is automatically set to a harder damper rating. If the quality of the track surface falls below a certain threshold, the system immediately changes to a softer rating within the ‘Sport’ setup range. When the quality of the tarmac improves once more, PASM automatically returns to the original, harder rating.
Need more information about PASM? Click this link: FAQ for PASM
Sport Chrono and Chrono Plus
This optional package is a valuable addition for trackday use. Available in conjunction with the CDR-24 CD radio, it includes a swivel-mounted analog and digital timer unit which is centrally located on the dashboard. All functions are easily accessible via the control stalk for the on-board computer. Analog dials measure hours, minutes and seconds, while a separate digital field displays whole seconds, tenths and one hundredths of a second. A second digital display runs in parallel in the instrument cluster. Click this Link to visit the FAQ entry for Sport Chrono.
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 LSD style unit Click Here -> Article Forthcoming Stay Tuned
PCA - Porsche Club Of America
The Porsche Club of America - http://www.pca.org
CaymanClub.Net members who are also PCA members should request access to the PCA Member only forum by filling in their PCA Member ID# into their profile and then requesting a group membership addition, both of which can be done in the User Control Panel (User CP)
Sounds like fun!! Initial feedback is that you should do the upgrades incrementally. I am not sure I would recommend jumping into the 3.8 immediately, unless you absolutely know you want that level of power. Suggest getting the suspension setup right first, with cup parts and Motons/JRZ. Then do exhaust, headers and chip. If you strip it I think you will find that it has tons of power and you will be equal to track prepped 997 S's and hanging with stock GT3's (depending on driver ability. of course).
Sounds like fun!! Initial feedback is that you should do the upgrades incrementally. I am not sure I would recommend jumping into the 3.8 immediately, unless you absolutely know you want that level of power. Suggest getting the suspension setup right first, with cup parts and Motons/JRZ. Then do exhaust, headers and chip. If you strip it I think you will find that it has tons of power and you will be equal to track prepped 997 S's and hanging with stock GT3's (depending on driver ability. of course).
right on.
do suspension first.
since you dont care about street use, strip it.
i wouldnt bother with header and all. just drive it hard, when the motor expires in 2-3 years, stuff a 3.8 in there and you will fly right by my orange pig.
I would do the suspension first, including being able to dial in camber, and get race tires and lightweight wheels. Also at the same time while the suspension is going on I would put on new brake pads, SS lines, new brake fluid (this is easy).
Then I would actually track the car until I felt that the handling was perfect. You may want to, in the mean time, put in race seats and 4 point harnesses inside. Personally I would put in a race steering wheel with no airbag, some pedal covers too.
If you want to do weight reduction this is up to you but I wouldn't destroy the car too much.
LAST thing I would do after running the car maybe for a while would be the 3.8 swap and full exhaust, all at once.
If it was me though I would not buy a Cayman as a track car. I would buy a Lotus or an open wheel car or toy car like a Caterham CSR
Strip the car completely down to the essentials, put in a 6 point cage, cobra evo seats, harnesses, PFC 01 brake pads, champion RG5 18" wheels, Hoosier R6 tires, Moton suspension, H&R sways and call it a day. It'd probably pretty easy to get the car down to less than 2500#s with little more than elbow grease. You'd be as fast as nearly any street car on the track.
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