Quote:
Originally Posted by lilbuddy1587 Hammer is XE high lift lobes. As far as the TR224 goes, its a whole lot easier on the valve train than the "latest and greatest" XFI/LSL/LSK lobes that everyone seems to be infatuated with. Not only that but being that its in between the XE-R and XE lobes, I'd say that's pretty "non aggressive", wouldn't you?
I mean, a simple set of 918's or PAC 1518's and you won't need to worry about springs for 40-50k miles. |
No, les agressive than LSK at .200 lift but not less agressive than LSK,XFI, (the same at .006>.050), (XE-R is the harshest).
Both lobes TR, XFI have a variance rate of 50 intake and 51 Exhaust. TR just has less lift and profile, the intensity is similar.
You have to look at various lifts, .006,.050,.200,.400 (if available)
It is not infatuation, it is called progress. Even TR uses LSK,XE-R lobes.
Now mind you, back in the days, TR lobes actualy came on the market before XE-R. They are great lobes, but things evolve. All we can do is adapt

and make more power.
As for the springs, they should all be tested, once a year or every 15K miles for pressures. If within tolerances, reuse, if below change.
you cannot just assume, this one is good for xxx miles and that one is yyy miles.
Modding internally means higher maintenance, it is like changing oil, has to be done for longer, reliable performance.