Thing is, settings are usually non-transferrable.
I like my cars to be a bit slippery at the back (fnarr). If you prefer a neutral car, my "killer settings" (and remember I briefly held the world record at Grand Valley 2) would be useless for you. I've only ever come across one driver I want to borrow settings from who I can actually use the settings of...
However, one KEY tip with the Loctite, Calsonic and Pennzoil Skylines. Use manual transmission and upshift before 5500rpm. Keep it in an unusually high gear through corners too - 1 or 2 gears higher than normal. The cars have a low torque spike and power peaks at about 5500rpm. The shift MUST be made by that point - redlining is useless. This is good for 1-2s a lap on something like SSR11.