4sylvester

I am looking for a "relatively" quiet valetrain/cam upgrade with lift around .560


I can use a low lift cam .525 with 1.8 rockers which give roughly .560 lift.

OR

Just use a cam with XE lobes ~ .56 lift?

What would be smoother/less noise? Also, would 918 springs be ok with 1.8 rockers?

Thanks!

BROKEN

iTrader: (7)

if it was me id use a 224 cam with 918s with the stock rockers

LS1rulz

iTrader: (1)

224 will still be loud, depending on what version he goes with.

brad8266

iTrader: (23)

An XE cam will still be loud. A cammed LS1 will never be too quiet.

PREDATOR-Z

I used to think that untill I started applying good preload research.

4sylvester

That is why i was opting for the crane rockers...because they have adjustable preload. It would cost more in the end but the system should be quiet. I was just wondering if an XE cam could be stock quiet if the correct pushrods are utilized.

PREDATOR-Z

My XE-R is quiet, my EX C5 with XE lobes was quiet. Just get the preload right.

vettenuts

iTrader: (4)

The Crane cams seem to be quiet, not sure what the ramp rate is but I tend to think is it low. My VHP 056 (Crane Z cam) is very quiet and I have run both 1.7 and 1.8 Crane rockers on it. Lift at 1.7 is 0.551 so it isn't too hard on the springs either. It seems to be a good little cam, often overlooked but makes good power all the way up the curve and is not peaky.