As a way for people to compare their 7 setup for sump clearance, how about a list of what people have, with what tyre sizes?
(Add your info to the thread, and I'll update this main list from those posts.)

Eugene - 85mm - 185/70r13 - 2L Zetec wet sump
Eugene - 80mm - 185/60r13 - 2L Zetec wet sump (205/60r13 on rears)
Uncle Albert - 70mm - 185/60r13 - 2L Zetec wet sump with BDA rocker cover*
admaraujo - 90mm - 185/60r13 - 1.6 K-series wet sump (SV)
s47 - 80mm - 185/70r13 - 2L Zetec wet sump (S4)
BigCol - 75mm - 175/55R13 - 1.6 Sigma (SV)
Analogue - 68-70mm - 185/60r13 - Superlight 1.6 wet sump
Donut - 78mm - 185/60r13 - 2L Zetec wet sump



*Uncle Albert has a 'Ford BDA' rocker cover, which increases engine overall height, and has required the engine to be set lower in chassis - and his 70mm is with the lower wishbones slanted up to the chassis end. If parallel the sump clearance would be about 10mm lower...)

Orange Appled - 90mm - 185/60R13 - Caterham SV 1.6 K-series wet sump (without me in the car and over half a tank of petrol)

S47 - 80mm - 185/70x13" - 2L zetec wet sump, IMO minimum of 80mm required for serious Blatting on Welsh 'B' roads

admaraujo

How can you have 90mm?
That is a huge figure for 185/60r13 tyres... are your lower wishbones parallel to the ground, or slanted up towards the chassis?

Eugene
I really don't know the answer to that. Wishbones are parallel... Will try to find some time to better measure that...

Umm car is up an axle stands right now but looking at the sump it's about 5mm too low.....

75mm - 175/55R13 CR500 front tyres - 1.6 Sigma SuperSport SV (without me in it...)

68-70mm rover superlight 1.6 on 185x60r13, wet sump

Um just checked 72mm . 185/30R13 Front tyres, 2L Zetec. Looking at the average looks like I need to go up....
OK just checked the wishbone are close to parallel.

Are you really sure you have 30 profile tyres???

OK... 60 profile......maybe still on the low side looking the sump....

Dorchester - 71mm - 195/60R14 - 2L Zetec wet sump

65mm to bottom rear edge of sump warning guard (which runs from the front chassis rail to just shy of the sump enclosing the forward area of the engine compartment).

Nothing wrong with 30-profile tyres (albeit 295 width on 19" rims on my latter-day Beetle descendant!!)

Oh dear!
On 14" 185/60

50mm!

I thought it was low.

OK so made a little adjustment to the front.
Using a bubble level app on the phone the rear arm of the front wishbone was slightly down (only a tad). So aprox 1.5 turns each side now I have aprox 1 degree up on the nose which with me sitting in the car means the wishbones are level....

Now 78mm under the sump..... Just have the raise the back a fraction now.