I am going to be buying the cam for the 355 in the next day or two and I'm trying to make my final decision. The COMP Nitrous HP cam seems so perfect duration, lift, and LSA wise. Do you have to run nitrous with this cam, what makes it a nitrous cam? I dont plan on running nitrous its just exactly what I'm looking for. All the others that are similar are either 110 LSA or too much money. Thanks.
James

 

Whats the specs on the cam? Whats the specs on the motor?
You dont have to run nitrous with it but if your not going to run nitrous, then why get the nitrous cam?

Nitrous cams usually give up on motor performance and give you more on the bottle...hence the nitrous cam name For most shots under 150hp, you dont really need to go with any special grind for nitrous.

 

What have you got against tighter LSAs, and why would you need so much extra exhaust duration? With stock Vortec heads, you do need plenty of extra exhaust lobe, but most other stock and popular heads do better with an exhaust lobe just one step larger than the intake lobe. LSA isn't a problem so long as you end up with the desired idle quality. And you sure dont need a 224 degree intake lobe with a long-runner TPI intake. 212 is plenty. a 212/218-110 cam with 1.6:1 rockers would do you fine unless you're running stock Vortec heads.

 

Not sure I would use one in an N/A application but they work just fine with a blower.

They do sell the regular XE cams but ground on a wider LSA. They "hide" them in the catalog as being for "fuel injected" engines, but they are just the standard XE cams ground on wider 112-114* LSAs. They say they are good for various TPI applications but they are flat tappet designs and most TPIs came with roller cams (87-later).

 

There are also hyd. roller XFI cams with lifts well past .500"