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Server Lease Renewal/Software Licenses

Our yearly server lease, software licenses, as well as hardware operating costs, ARE due Dec 6th, 2021. Our current donations have fallen far short of the funds we need to renew. Please remember the RennTech.org community is Member supported so please consider a donation to help...  THANK YOU!

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Bobcat Sig

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  • From
    Portland, OR
  • Porsche Club
  • Present cars
    Range Rover Sport, Ducati 899 Panigale, Multistrada Pikes Peak #26, Hypermotard 821 SP
  • Future cars
    996TT or 981 Cayman S
  • Former cars
    Supercharged BMW 330Ci, BMW e30 325Xi, Saab 9-3 SE, Audi allroad, B5 avant

Bobcat Sig's Achievements


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  1. Terrific, thank you. I only received the paper owner's manual with the car and wheel specs aren't included in that. I did, however, find the online manual and the wheels spec. it looks like there is very little offset difference between the two wheels; the 21" I have now with 50mm offset and the 18' wheels I'm looking with an offset of 53mm. Although running it through a calculator, it appears the 18" wheel face will sit inboard 28mm. So, if I want to maintain the somewhat flush look that I currently have with the 21" wheels, I'll need spaces?
  2. If my interwebbing is at all correct, there seems to be some differences between the 955/7 and the 958 wheels. I know they are interchangeable between vehicles, but I suspect there's some difference between the backspacing and offsets. I'm trying to get some some proper and semi-aggressive AT tires fitting to my CD. While I know the OEM 255/55-18 tires will fit with no issues, I'm wondering if I can't get a slightly taller and/or wider tire on my rig. Having access to OEM wheel specs should help me in that quest. Can you point me to a resource for OEM wheels specs? Specifically, the 18 inch wheels? Thanks
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