compcams hp268
would this cam give me a bit more power with the spray? how would it compare to the xe268?

 

It;s similar to the stadard XE cam but with a slightly wider lobe separation angle (113 vs. 110) and even more exhaust duration to make sure the large amount of exhaust gas that nitrous creates can get back out of the cylinder.

For a street-driven nitroused motor you have to trade off between good N/A performance driving around town and maximum effort on the bottle. I have found it's a better trade-off to just up the nitrous jets a little more and build the motor for good off-bottle performance. Makes daily driving more livable.

 

we never blew head gaskets until we installed the nitrous cam but we did get more brake vacuum.

 

friend of mine has a monte carlo running 10.70's with the NitrousHP 274 cam and a 175shot ...and on a dyno while spraying the 175 shot he gained like 230HP so I'd say those cams work real well

 

Damn, not bad at all. Whats your friend's setup if you dont mind sharing.

 

its a 355 with heavily ported Iron Eagles (180cc I think), cam is advanced 7 degrees, 4.10 rear with 28" tall tires, 8" converter ...thats about all I know.

 

Cam is advanced with nitrous? I thought that was a nono? Just ignition timing?

 

He gained like 3 or 4 tenths I think by advancing it.

 

I remember you can help out a car with too litlle or too much compression bay advancing or retarding the cam but which is which?