The Cayman and the Boxster share the same chassis. One of the benefits of this is that the Cayman chassis includes the factory mounts used for the Boxster Roll Over Hoops. I believe that using the factory mounts is superior to bolting a roll bar to the floor. The Hergesheimer and new GMG roll bars use the factory mounts. I'm using the Hergesheimer bar but this article will also apply to the GMG bar. The Hergesheimer roll bar includes an all welded main hoop with a diagonal and harness...
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This article describes the installation of a new master cylinder. Thanks to Rob VN for the pictures. GT3 MC Part #: 99735591030 Note you can buy either the TRW MC or the Porsche MC. Both of these are the same but the TRW cost over $100. 1) Remove the plastic around the master cylinder (MC) by removing the 8 torx screws and jiggling it out.
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This article describes the installation of a set of Hella B133 horns into my 2007 Cayman. My car is on its third set of stock horns so I wanted try something better(?) now that the warranty has expired. This horn installation requires the bumper cover to be removed. I synced this project up with my CSF radiator install. The Hella kit comes with two horns and a horn relay. I used the relay not knowing the capacity of the Porsche horn relay. These new horns draw 11 Amps.... Here is the...
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This article describes the installation of three all aluminum radiators made by CSF ( no affiliation ) on my 2007 Cayman 2.7L. The radiators are welded things of beauty which promise to be more rugged than stock radiators and increase cooling capacity by 8 - 10% due to their design. There are three part numbers involved: CSF7047 Left Side Radiator CSF7048 Right Side Radiator CSF7049 Center Radiator Four fresh O rings on the radiator hoses: Two pieces P/N 99610680107 and two pieces...
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I purchased the Aerokit Front Splitters (2006 - 2008 987.1) from Suncoast to complement the Getty R/S rear wing that I had installed earlier. I received the LH and RH splitter, 6 expansion rivets, and an adhesive kit. No instructions were included but I contacted Suncoast and they emailed a PDF file of the Tequipment Aerokit Installations Instructions. This 19 page document primarily covers the installation of the rear wing but pages 17 & 18 cover the front splitters. The splitters...
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This article briefly describes the installation of a brake caliper stud kit supplied by Tarret Engineering ( no affiliation ) on the rear of my 2007 Cayman. The stud kit prevents stripping of the caliper mounting holes in the wheel bearing carrier. The studs are available in various lengths for different vehicles as shown here: http://www.tarett.com/items/986-987-products/986-987-engine~transmission~brakes~electrical/brake-caliper-stud-kit-bcsk-detail.htm The kit is shown here. The...
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The Cayman, as delivered from the factory, is one of the world's best handling sports cars but, like all road cars, has had some compromises in its suspension. When Porsche introduced models with enhanced performance such as the Cayman R and Boxster Spyder, suspension modifications were part of the package. Lower ride heights and higher anti-roll bar and spring rates were used in these models. The new X73 Sport Suspension option now available on 981 models includes those same changes. This...
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The Getty Cayman RS Wing is a smaller version of the wing used on the GT3 RS. It is an anhedral wing design. The leading edge tips are lower that the center section. This allows a lower angle of attack for the center section which is running in the air flowing down the back of the rear hatch. The ends are running in a more direct air flow and are at a greater angle of attack. Getty built the aero components for the Cayman Interseries race cars and I like their proven wing base. I placed...
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When I was cleaning my new to me car, noticed there was a significant 'ding' in the drivers side radiator. Saw on another forum how someone had done a great job with metal gutter guard, to protect the radiator. But to do that, you had to pull the headlight assembly apart and it was a more permanent fix. Every time I step out of my pay grade, I end up doing more harm than good. Decided that the Home Depot plastic guard would work, $1.72 on clearance! Made a rough template out of thin card...
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UPDATE 2 from Vision Motorsports: Dwain replied to my question about trans axle temperature ranges to worry about: his response was, “220 is ok. 250 is getting hot. 275, I would start to be concerned.” UPDATE: I have some trans axle temp data from my recent visit to Sebring. On the drive over, 140 miles at 55 - 65 MPH, ambient air 90 F, the trans axle oil reached 150 F. The first day of the DE air temp was 80 F and I was re-learning the track the trans axle oil reached 190 F. On the...