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Good questions. If i could test fit the wheels it would be much easier to make assumption about what tires that could be fitted without just guessing. On the new wheels the tire fitted are 265 width for the rear and it did fit a ghibli but on the 95 years models and forward the rear wheel house had the wheel house panel bend in a u shape making the panel above the wheel thinner. Whilst on my 94 the panel edge is a 90 degree bend inwards making the potential interference from a larger tire. Hence im not sure if its a good idea to go with a slightly larger spacer for the possibilty to fit the 265s which may not work anyways.
But yeah i have thought about it since normal 265s could potentially fit (not these i think with the R sidewall as it will be to tight. Would be nicer and its quite tailhappy as well so perhaps could tone that down a bit with more rubber.
Yes i was thinking if i can get these wheels to work eventually and i have spent cash on new rubber as well i might as well just pay for what we call a 4 wheel setting to make sure the camber is correct etc. Im a novice about this stuff so i wouldent know how much the suspension can be changed tbh. I know i have 4 settings by pressing buttons tho .) Since it will be somewhat of a money pit operation regardless i might as well throw a tad more to it and get it done right.
Would like new federale 265 / 45 fetch any cash used btw? like a 100-200 miles or similar.
badboybjorn-
Sorry, am a few beers in, and know a little. More for 60-70s cars that I played with rather than modernish stuff.
I assumed that you knew what tyre widths you were using, hence the comment. Nothing more than that. Warning is that if I am talking to people I am cautious, but if it was my car I am alot more devil may care. Have worked at a car maker that had there brand new cars straight from the factory that were so variable, suspension wise (out of spec) that lots of things were being checked to see if there was an assembly of body panel problem, on other part problems. Was little more than a project manager with automotive knowledge.
I have no idea about your ghibli, I have a little bi turbo knowledge. All that told me, is not even masa/masa experts know what masa did. Think I still have a stamped 5j rim that masa specialists claim that masa never made. In theory there should be alot of adjustabilty as it is a supercar and different tyre maker and different tyre models have differing tyre widths for the alegdly same sized tyre. Just like cycle tyres it is the same for all tyres.
In the Uk, I'd say yes second hand tyres with provenance are worth a bit. Else where I have no idea. Scary thing is I thing the xtype has 17inch 8.5j wheels run 225 tyres the same tyre width used 17-8j 17- 8.5j 18-8l 18- 8,5j and 19 - 8.5j while the 9j in either 18-19 get 255 width tyres and that makes no sense to me.
lynx
Your maths and logic look good to me.
The first thing that I'm thinking is that a rim size difference of an inch and still running a 245 tyre width, would a bit extra mm on the space be helpful in the future if fitting wider tyres?
Would also say that after new rims, are you going to get the suspension set up properly? Making sure that the tyre footprint is square on the floor. Also how much adjustment is in the standard suspension, I don't know, sure in can be tweaked to be perfect.