It would be very nice to set google's "web" search as my default search, as it gets rid of a lot of the extra gunk that's clogging up google's main search engine. This can be obtained by adding udm=14 to the query string, like so:
https://www.google.com/search?udm=14&q=<query>
There doesn't seem to be a way to add default search engines, from comments online this is due to security considerations. Although if there is a way that I can add this then please do tell.