There is a small company in Salem, NH Land and Sea the web site is www.land-and-sea.com
They were making variable pitch props of marine applications and found a new use for them, dynos this may lead you in the right direction
Years ago, if we did get on a dyno we fabricated an exhaust that had one tube inside another. Watch the numbers and slide the tube moveable tube for peak power. Computers sure have made life easy. That is unless you have a V6.
What make and model car do you have? For a live axle car the Ginetta G.4 has about the shortest drive shaft I've seen and with +/- 2" of suspension travel youe at +/- 11.9 deg but then both the engine and the drive shaft are at angles in 2 different planes. Never had a problem and at max...
