On Adam's advice, I'm running a stage 2 Jammin JPX .21 (P7R w/ turbo head button and cosmetic differences) in my Losi 8-T. So far, I'm VERY happy! Everyone who's seen it run has been impressed. Our former club president wrote this on our forum: "Howard your truggy motor was sick yesterday, I marshalled truggy twice against the back wall and when you got it straight and put the power to that bad boy it rattled my rib cage as it went by!"
BTW, I'm running the Novarossi 9886 w/ short conical header (41019), also on Adam's advice.
-Howard