I thought that I should update this thread as well as the main thread on the V10 as people like me may be looking for this information in the future.
The 33s are on... but they catch! No surprise there.
They're 275/70R18s, which measure up as 33.17" tall (according to the maths!)
The front wheels/tyres catch... the rears don't. I won't be looking at anything to do with the rears so any referrals to 'front or rear' will be about the front arch... just to save any confusion later
The tyres catch only when turning and at a specific position, not all of the time.
At the front, they catch on the arch liner and behind that is the intercooler with ducting. They don't catch the bumper.
At the back, they catch on the arch liner and behind that... is the sill
That's not an easy fix.
I only had a few hours so I concentrated on the intercoolers to start with.
So, off with the arch liners. These were both damaged from previous owners so I didn't feel bad about cutting them rather than trying to modify them.
I cut the section out with the vents in and that was it. I will look at some fine mesh grills to put over the intercooler rear face to protect them against stones and mud. For now, they're open to the elements.
Cutting the grill out (and the section that sticks back the most) wasn't going to be enough as the tyres were catching on the intercooler rear ducts as well.
I pulled the front bumper off and had a close look at the mountings.
The top intercooler mounts, I can't get to without dismantling lots more and I figured that by moving the bottom forwards, I would probably get the room that I need.
Here's the bottom mounting and me carefully removing all of the bracket that is part of the intercooler.
With that lump removed, I also had to slightly modify the front mounting part to give clearance for the intercooler to swing fowards. We're only talking mm here but every bit counts.
Once cleaned up, I drilled a hole through the remaining bracket (it's doesn't go into the intercooler chamber) and used the an M6 nut for the original fixing bolt to screw into.
And with the pipe back in position, you can see how much it's moved forwards.
Here's the other side with a few more detailed photos.
On the left hand side, the intercooler was now pushing against an intercooler pipe. A slight 'manipulation' with a pry bar in the right place was all that was needed to move it and allow the two parts to live happily together again
With everything buttoned back up again, it's clear to see how much more room there is.
The rear of the arches will be next but that's going to involve cutting and welding.