Not too sure about north lincs specifically but in lincolnshire in general, there's a few odd places that have 2wd enabled ramps around that I've read about previously from other forums such as one place just outside of sleaford.
There's also a place not far outside of Skeg that is more of a professional/performance based garage with a dyno that I looked into before but I have no experience of either. Iirc they had a decent website that added to my overall impression and that that I had read of opinions of them on other forums but I cannot remember any business names, I'm sure a quick google could bring them up.