Thanks for the responses! I am going to get a heat shield made up and replace the grease and see how that holds up. For the record, here are a couple of pics: just how much grease came out and the rather stressed boot (gaiter).
I have this same cv boot vacuum issue after this weekend track event. I will try the sheild or wrap my headers.
Any one recommend a good large CV boot clamp source and size?
Current 2007 Exige S TOURING PACK, TRACK PACK, LSD, Aspen White, BOE Torque300, Tank,2bular muffler, Larini header/Decat, RLS Intercooler, Intercooler Vent Ducts/tubes PENSKE SINGLE-ADJUSTABLE SHOCKS, CUPdiscs-Front ULTRAdisc rear, Lotus AP 4 Pot Calipers, Fidanza lightweight flywheel, ACT HDSS Clutch......way too much to list..
Past 2014 Arial Atom
Past Lotus- 2005 Elise, BOE REV400TVS,Nikasil SB, Arias pistons,....et cetera-track monster