I've finally managed to find and buy 19inch Techart Forumla's for my 997 turbo. The rears tyres are 315 wide, my question was do I need to have spacers on the car?

Secondly where is the best place to buy Techart Centre Caps.

Thanks.

 

Hey Alan! I love those wheels. They are generally actually pretty aggressively offset. Just make sure the tire overall diameter is correct and that they are for a 997 rather than a 996. You can see the offset stamped on the back of them marked ET. They are in Southern California under Brabus. Shoot me an email and I can connect you if you like.

 

Thanks Sambo and HNY!
The techart have been fitted, they are same size as OEM and no spacers. I think they maybe for a 996 as very aggressive offset but no rubbing.
However the other night I went for a drive and when I went over 150mph the car started vibrating, this did not happen with the OEM alloys a couple of days earlier. I was thinking it could be the offsets rather than the balancing as they are good up to those speeds?

 

Hey buddy. Sounds like wheel balance. There’s balancing and then there’s balancing you know?

 

When you had them balanced, did you have them "road force balanced"?

 

All tyre pressures were 5psi down, after sorting that I did another fast speed run the car was much much better. Stil the oem wheel felt better. Not sure what type of machine was used to balance as was done at time of refurb, but assuming on good machine as this is one of the top places in UK. However I did notice quite a few weights on all the wheels!