Falling in the Research Pit

I started writing a new UF series, per the request of a small press publisher--Squee!
Over the last 4 weeks, I researched the city I wanted to place this new story, the paranormal creatures that would belong in it, and thought about plot points, character, dialogue, arcs (character, book, and series arcs) etc. You name it, I thought about everything . . . .
but not quite.
As I was writing, I needed to see where the city's morgue was located in relation to a hospital, the supposed headquarters of my organization and another important building.
Mapquest is freakin' AWESOME! That particular research tangent took less than five minutes. *Note the time*
My next research tangent involved a POS (piece of shit) car that had been souped up with a Vette Z07 engine and low profile, run-flat tires. I pulled up the Chevy website thinking they always have engine requirements on cars--but not on Vettes. About ten minutes later, I said 'screw this'. I realized that I was wasting valuable writing time doing research.
So I wrote in highlighted capital letters, INSERT HOPPED UP CORVETTE ENGINE INFO. Yes, I copied that directly from my manuscript to this page.
Word to the wise--If your 'research' takes longer than 5-10 minutes, put a note in your manuscript and go back to it later. Tough to do, but you won't lose your forward momentum if you set a time limit.
What do you do when you have to stop writing to look something up?