911hillclimber wrote:How do you/Barry set the arch centres to the wheels?......
....having spent the afternoon with Barry on Thursday I now have a bit more of an idea....
....the rear flares are excellent and positioning for these was straightforward, after lining up the torsion hole, where they sit on the on the rear quarters looks correct and a couple of measurements confirm that. Gary has made up my short trailing arms and we still plan to fit these with a wheel before final welding but that's more for a visual and clearance check to be certain. Side on the wheels don't sit in the centre of the arch anyway....
....the front arches were more of a concern as they could be twisted and moved forwards or backwards. It seems all of the front RS bumpers on the market have been developed for turbo flares which are a
completely different shape and therefore need a lot of work so no good as a reference point.....with time pressing on I decided to take my Mac loaded with a gazillion RS photos and we spent the afternoon measuring and scaling using know reference points.....we found this wasn't possible from the front as the depth of field, although consistent, varied the reading too much (I expect there's a mathematical formula for correcting this although that's beyond a working class boy with few GCSE's!).....however from the side we were able to establish firm reference points we could measure and check and then it was down to eye.....ultimately a good outcome and if you look at the side photo I posted above you can see initial markings and just how much we corrected our initial positioning...
....perhaps not ideal scaling from photographs although if you study all the original cars closely the differences are quite extreme and in some cases I feel the characteristic shape of the RSR arch has been exaggerated......I had hoped to view and measure an original car I've been fortunate enough to photograph extensively before although there's no guarantee that would have been more helpful and on this occasion the owner couldn't actually find it!
Cheers,