what do roller rockers do ?

[itchy pits]

what do roller rockers do ?

 

[rufus]

they increase the valve lift and therefore increase the amount of air into ur engine....

 

[Marks-VY]

To put it very simply, roller rockers reduce friction and therefore save horsepower. They do this by rocking on needle roller bearings rather than the simple metal against metal pressed steel type. They may also be machined out of lighter, stronger alloys.

 

[Marks-VY]

they increase the valve lift and therefore increase the amount of air into ur engine....

Roller rockers may be ordered with a different fulcrum to enable more lift although that is a secondary purpose (but very useful....) :thumbsup:

 

[VT-565]

They can be roller rockers with roller tips as well. decreases friction against the tip of the valve.

 

[Shivaga]

cool, 4 replys and 4 different meanings lol

 

[VSIIBerlinaL67]

they just open the valves if u get ones with a higer ratio they open valves more

 

[Daza]

Did we miss a couple of reasons
Roller tip = less sideload on valve stems (The main reason for use) = allows higher speed operation (Bigger cam) and less wear on the valves

Roller tip and fulcrum = less oil required for lube = better oil controll (Less oil draining back = more oil in the sump)

 

[VT-565]

Roller tip and fulcrum = less oil required for lube = better oil controll (Less oil draining back = more oil in the sump)

Less draining back? More in the sump? sounds cool, but how are you going to tell your oil to stay in the sump?

 

[s0sage]

perhaps a gentle "please?"