Got STUpid?

It's been about two and half months since I decided to make the switch from running BS (B-Street) to STU (Street Touring Ultra) and the build is now complete and Kay is ready for her first event later this month. Although I've covered a lot of this in previous blog posts, I thought I'd consolidate the build details into a single post for easy reference later. I also got a chance to do a quick photo shoot this morning before work with a real camera so I thought I could make some gratuitous use of those photos.

Ready for the 2019 Autocross Season - 3-14-2019

Comparison from last year's BS trim - 7-29-2018
(Eeeesh that rear wheel gap)

The guiding philosophy of the build was to try and put together a competitive 987.1 Cayman S while keeping the car clean and "almost stock" looking as possible. Inside, I wanted it to still be comfortable to drive long distances. Whenever possible I stuck with OEM Porsche parts unless an aftermarket performance option was significantly better. It's built to the limit of the rules without overdoing it (for instance, getting seats I really wanted versus the lightest possible seats the rules allowed). Most importantly, it was top priority to make choices based on what would really enhance the driving pleasure for me.

Build Summary

I'm going to just bring up the performance/STU specific related mods here (including stuff carried over from BS) and not bring up the little insignificant cosmetic mods and maintenance items to keep things clean.

Car

• 2007 Cayman S w/ 6MT
• Atlas Grey
• Sports Chrono
• PASM (deleted - see below)

"Almost Stock"

Power Adders

• aFe Magnum Flow - Pro 5R intake filter
• Soul Performance street header with HJS 200-Cell Cats
• FVD Brombacher exhuast
• FVD Tune

Chassis/Suspension

• Rennline HD engine mount
• Function First V2 transmission mounts
• GT3 lower control arms (for front)
• MCS 2-Way Non-Remote dampers with 600/700lb HyperCo springs (PASM delete)
• Elephant Racing eccentric rear toe arm bushing
• GT3 front sway bar w/ Tarett Engineering drop links
• GT3 rear sway bar w/ Tarett Engineering drop links

Transmission

• OSGiken Super Lock Limited Slip Differential
• Numeric Racing short shifter

Interior

• GT2 Carbon seats
• DMC harness bar
• Brey Krausse sub strap bar
• Schroth GT3 6-pt harness (driver side only)

Wheels/Tires

• Yokohama Advan Racing GT Premium forged wheels
• 18x8.5 +50 (18.6lbs)
• 18x10 +40 (19.2lbs)
• Titan Wheel Accessories 5mm wheel spacers all around
• Bridgestone Potenza RE-71R
• 255/40/17 front
• 265/40/17 rear
• TPMS delete

Misc Performance / Reliability Enhancements

• FVD baffled oil pan
• Porsche Motorsports Air Oil Separator
• ERP under-drive PS pulley
• TuneRS motorsports PS cooler
• Stainless braided brake lines
• Antigravity Group-48 24Ah 1000CCA Lifpo4 battery (9lbs)

Big thanks to Bryan and his team at Speed Sport Tuning, Lee at Hybrid Motors, Steve at SJF Performance, Bryan from Karcepts, Jonathan from OSGiken, and Alex and his garage for helping me get this build completed on schedule.