whats the difference?
Thread Starter
|
New User
Joined: Nov 2002
Posts: 9
Likes: 0
From: PA
whats the difference?
im planning on rebuilding my engine soon, and one of my questions is what kind of cam should i use. ive heard of hydrolic cams, solid cams, and roller cams. but whats the differrence between 'em. i know i got a hydrolic cam, but im looking for bad @$$ performance.
the cam is going to go into an aluminum 302 block, with a 347 strocker, h-beam rods, 11:1 pistons, brodix track 1 heads, 1.6:1 rockers. im gonna keep the engine naturaly aspirated.
TOM
1994 f-150 5.0 5-speed
dynomax longtube headers
dual 2.5" flowmaster 40 series
k&n intake sys
detroit locker
the cam is going to go into an aluminum 302 block, with a 347 strocker, h-beam rods, 11:1 pistons, brodix track 1 heads, 1.6:1 rockers. im gonna keep the engine naturaly aspirated.
TOM
1994 f-150 5.0 5-speed
dynomax longtube headers
dual 2.5" flowmaster 40 series
k&n intake sys
detroit locker
Senior User
Joined: Apr 2002
Posts: 279
Likes: 1
whats the difference?
As I understand it:
Hydraulic lifters don't require valve lash adjustments which need to be checked periodically with mechanical (solid) lifters.
Mechanical lifters can be reved to higher RPM's than hydraulic.
Roller lifters can utilize cams with steeper lift profiles, which increases power and gives a broader torque curve.
Best for street applications would be an hydraulic roller.
Best for race engine would be mechanical roller.
Removing valve covers for lash adjustement on an efi engine may require removal of the upper intake manifold, which IMO is a PIA.
On a carbed engine it wouldn't be as much of a hassle.
Hydraulic lifters don't require valve lash adjustments which need to be checked periodically with mechanical (solid) lifters.
Mechanical lifters can be reved to higher RPM's than hydraulic.
Roller lifters can utilize cams with steeper lift profiles, which increases power and gives a broader torque curve.
Best for street applications would be an hydraulic roller.
Best for race engine would be mechanical roller.
Removing valve covers for lash adjustement on an efi engine may require removal of the upper intake manifold, which IMO is a PIA.
On a carbed engine it wouldn't be as much of a hassle.
Junior User
Joined: May 2003
Posts: 54
Likes: 0
whats the difference?
Just make sure you do the math, As to the proper profile cam you want. There's no such thing as a 3/4" race cam.
Cams can be had in so many profiles, it can make you glad you stayed awake in math class.
Cams can be had in so many profiles, it can make you glad you stayed awake in math class.
