Quote:
Originally Posted by Captainfab
IMO that is too big of a cam for a street driven 402, especially with EFI. I doubt that you will ever get it to run right with that big of a cam with a 110* LSA. I don't know what cam you have now, but that cam will not give you good low end to mid range power. More like mid range to top end.
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This is what I want to avoid. I want quick throttle response and loads of bottom end torque. The outgoing flat tappet cam was bone stock or so mild that it was very close to stock anyhow. My guess is that it was ground close to 112/114 LSA, probably .45 lift and conservative duration.
What do you guys think of the xr270hr ( 218/224 Dur @.050, 110 LSA, 1600-5400 RPM: 383HP@5000, 453TQ@4000 ) with respect to my goals?
Note the same RPM peaks for HP/TQ as the 276 cam. The HP/TQ graph provided by COMP for these two cams both spin out 350 lbs of TQ at 1500 rpm. Is that just marketing or am I missing something?
Now I'm confused!
-klb