cam

[240sxboy223]

i have a 1990 240sx and i was wanting to put an aftermarket cam in it. want cam is best for it? thanks

[Klits562]

Not alot of people make cams for the ka-e but i think nismo does google it n find out.

[poshatch]

i know this isnt what your looking for but i would say that it isnt worth the money for a cam swap save the money for something else a bit more useful

[seang]

Here is an exhaust video of a KA24E with a Nismo R4 cam, see the comments. http://www.youtube.com/watch?v=JKTKf078 ... re=related

Static compression is the most advertised, but dynamic compression is "what is really going on." Hotter cams like (or even require) higher static compression because the difference between it and the dynamic compression gets greater as cam duration (and valve overlap) increases. For example, an engine with a 9:1 static compression ratio will really have 7.2:1 dynamic compression, or something like that--dynamic is always lower than static.

Knowing this you can see why using a cam with too much duration on an engine with not enough static compression can drop the dynamic compression to a less than optimal level, thus less than optimal engine output/efficiency.

[240sxboy223]

thanks for the info