Register a free account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members through your own private inbox!
the graph is smoothed, on the first one from 6,200rpm it only goes up by 5bhp to peak power. there is a slight dip at 6,500rpm otherwise it would of hit peak between the two figures and held right through.
stands for nnnnnnnniiiiiiiiiiiice :tonguewink:
group n was advanced inlet and retarded exhaust cam timing, all that was allowed. basically to try and take best advantage of the standard cams.
is that like a donner kebab :tongueclosed: will have to look at your cam specs actually and see if it's worth doing anything with them?
yup or to put it in layman's terms...goes like stink from 3,000rpm :cool:
197 cams will give more overall power and torque but torque will be higher up the rev range. would like to do a few more on this timing before answering that one though but from how this one is for road use i'd be tempted to say group n timing but for competition/track car then the 197 cams...
the 197 are different profile to the 172/182, got to admit can't remember exact differences as was ages ago i looked and that was just to work out the timing set up on them when using them on the 172/182. they can be fitted on standard timing but you don't get as good a gain from them.
it's not advanced by that much so still clearance. i've seen them that have been out more from having the timing cocked up or it's slipped and still been fine.
was about 5bhp and 7lb/ft but it's the way it shifts it all around the rev range.
would like to do a few more to see what difference...