[wa-sleeper]

Im wondering what the stock cam sozes ar for the 1.8.

 

[LOWETGT]

Actual... J/K

You looking for lift and duration information? Those specs IDK, but there is the exhaust cam swap mod. Supposed to be good for 8+ HP depending on tune.

 

[wa-sleeper]

I know I wanna do it. All you have to do is take out the exhaust cam cut off where it would go into the dist. And put it where yout intake one is.

 

[LOWETGT]

Yep, you must re-clock it though...

 

[wa-sleeper]

Yeah I know. I was just stating the basics.

 

[LOWETGT]

:wink:

 

[racerboy]

Lift for stock cams are .338. Duration is the difference between exhaust and intake cams.

 

[LOWETGT]

Lift for stock cams are .338. Duration is the difference between exhaust and intake cams.

The I and E cams on the 1.8 are different.
I believe duration means the time in which valve is opened...

 

[98EscortRacer]

Duration is the amount of degrees out of 360 that the valve is off the seat.Typically listed at .050 or.006 lift to keep specs consistant between manufacturers.

 

[CODY004]

Actually it is degrees out of 720. The cam spins half the speed of the engine, because the piston must go down for intake, up for compression, down for combustion, and up for exhaust. Typical aftermarket turbocharged cams have something like 272* of duration, but if that was out of 360* that would mean that the valve was open for three out of four of those events, and that there would be ~180* of overlap between the intake and exhaust, and you would not build any compression like that. They rate it for crankshaft degrees, not cam degrees.