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Sneak Peek: GTSport Pirelli World Challenge Cayman S

by Khiem Dinh

Khiem Dinh is an engineer for Honeywell Turbo Technologies at the time of this writing.  All statements and opinions expressed by Khiem Dinh are solely those of Khiem Dinh and not reflective of Honeywell Turbo Technologies.

In the Porsche performance hierarchy, the Cayman is the little brother to the 911. As such, the Cayman is typically seen in lower classes of racing. In this case, GTSport prepped the Cayman to Pirelli World Challenge Grand Touring Sport rules. The beauty of the Grand Touring Sport class is the relatively low cost of admission. From a performance standpoint, the cars are quite limited in modifications which helps keep the costs down. Of course, the devils are in the details and GTSport has done a great job with those details seeing how driver Jack Baldwin of the #73 car is leading the points after Round 6 in Detroit. We got a close-up of the #72 sister car driven by Buz McCall during the round in Long Beach.

 

Being a mid-engine car, there’s not much going on under the front hood.
The benefit of the Cayman being virtually identical to the 911 in the front half of the car is the interchangeability of parts. My memory is a bit hazy, but I’m pretty sure the hydraulic power steering system from a 911 GT3 was swapped in. Okay, so your average tuner shop probably won’t do this modification.
An AP Racing brake master cylinder setup was also swapped in. Okay, so your average street tuner car won’t have this modification done either; this car is a race car!
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Comments
Wrecked
Wreckedlink
Wednesday, June 18, 2014 5:27 AM
I like these race car articles.

"My memory is a bit hazy, but I’m pretty sure the hydraulic power steering system from a 911 GT3 was swapped in. Okay, so your average tuner shop probably won’t do this modification"

Buschur Racing just released a kit to put these electric pumps into Evos.

There seems to be an ECU in the front of the car in addition to the factory one pointed out in the rear. Any idea what role each one plays?
spdracerut
spdracerutlink
Wednesday, June 18, 2014 8:56 AM
I think the front ECU is for the ABS system. The one in the rear hatch area is for the engine.
Der Bruce
Der Brucelink
Wednesday, June 18, 2014 8:30 PM
1st - I love these insights! No pics of the engine bay or exhaust? :-/

2nd - Exotics Racing in Vegas was certifiably awesome, 11 laps worth!!!!!!
mike156
mike156link
Tuesday, June 24, 2014 5:00 PM
Interesting the brake system maintains ABS but also has a balance bar. Does the Porsche system normally split the car F/R going into the ABS module? Most ABS modules cross split the car.
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