swap rims 15" to 16", offset in rims Options

[-=rafal=-]

Hi, I've been browsing the forum and similar topics have been described several times, but nowhere did I know what interests me. I have a few questions because more knowledge than me. What offset are the original Porsche 914 alloy wheels in a narrow body style? I was looking at ebay auctions, on forums, on facebook and they all only give the size and width (15x5.5), the PET porsche also doesn't have any offset. I bought a porsche 914 which has no original rims. I checked the parameters and there is information 15x5.5 but there is no offset anywhere on the rim. I would like to change the rims. I would like to change the rims (currently 15x5.5 tire 185x65x15) to 16x6.5 or 16x7 with a 195x50x16 or 195x55x16 tire and if anyone can tell me exactly what offset I need in 16-inch rims so that the tire does not rub against the fenders at the back and with front when turning the wheels. Verified information would be the most important to me. My rims in the picture. Thank you very much for all your help and please be understanding if there are any spelling mistakes. Greetings from Poland (IMG:style_emoticons/default/beerchug.gif)