Quote Originally Posted by GTP89 View Post
Well i have read good and bad between the both and many people comparing and picking them apart. I currently have a xpz cam IS4 heads and all supporting mods for that build till the new smog law started this year that change my mind if I can't pass with xpz which is what I am trying to find out.
Also completely agree with you on the RPM and KR. I just want a fast dd enough to smoke srt8 without much issue at all.
What about th S1x cam? I've heard that is in between the vs and xp cam.
The s1x is inbetween the VS and XP in size, but the powerband is broader meaning you'll have to rev that cam more than the other two to get everything out of it. A stout VS setup would have no problems with an srt 8. Hell my setup ran a 13 flat with all sorts of kr due to a bad intercooler pump. I'm sure it would have performaed just as well as my xp set ups, only it didn't need to rev high to do it. I'm willing to bet there's a 100,000 mile life expectancy difference between a vs cam car and an xp/s1x car if both are tuned to take advantage of the powerband of the cam. For anyone who dd's thier car, I'd always recommend a vs. It's the best 3800 cam and it makes a ton of power everywhere in street revs. The trade-off in durability vs power on a scale of 1-10 is a 10 to 1.