I know what you mean about tyres for 13s!
 
Not sure on the 15x7s, I don't know what offset they come in, but they will be much less aggressive than the 8s.

15x7 ET12 should fit nicely with 195/50s.  I'll let you know in a few weeks when I've fitted mine.

Please do so as i need to make a decision asap.
 
Thanks
 
Rodney

Cholaso
Please do so as i need to make a decision asap.

If it's of any help in the short term, I carefully measured the space between the face of my hubs and the inside edge of the wheel lips, then did all sorts of calculations on a spreadsheet to check whether 7" wide ET12 offset wheels and 195/50 tyres would fit without the need for rolling the wheel arches.  I calculated about 4mm of clearance to the tyre's outside edge, which sits further out than the tread block (meaning more clearance in practice), so I figured that would be sufficient.  Just to be sure, I also went to see a car with the exact same wheel offset and tyre size, and indeed they fit just fine.  I was quite happy to then plonk down my hard earned cash on the nice shiny new wheels.

Thats fantastic research. Really appreciated. Theoretically they are same size as 13inch 205s. The offset is key though

Flighter show us some piccies would like to see for myself. If u dont mind

No tyres yet (soon though) and only be able to fit to the rear at this time, as my front suspension is out, but I measured the clearances as being equal front and rear, so it will give you an idea.

Took a little longer than expected, but tyres will be put on on Saturday, so stay tuned; I'll see if I can get a photo or two up that shows the amount of clearance.

Here's an update for Cholaso. Despite my axle being out of alignment (see the thread on 'axle offset' for more info), the 195/50R15 tyres on 15x7 ET+12 wheels fit under standard Mk2 arches. I'd have even more clearance if my axle was properly positioned, but that's something I'll address later, and maybe even fit 205/50s on the rear while I'm at it, as there will defininitely be enough space for those once that's done. Photos are a bit meaningless seeing one side is 20mm further out than the other, so that's why I haven't posted any.

Haven't had an update for a long time, because there's been nothing to update. There has been some progress lately though.
 
Pulled the ECU, igniters and wiring out in favour of a Haltech PS1000 and LS coilpacks. This will all be going in shortly (a couple of weeks once it all arrives)
The engine bay pic below is exactly where it's at right now. The exposed wiring will be tidied up, it's stripped at the moment so it can be tidied up and anything not being used will be binned.
 
Also noticed the cam angle sensor wasn't being used previously so that'll all be sorted out too, obviously.
 
I'm hoping to have it running and tuned within a month, and hoping to have it on the road soon afterwards.