
Hi guys,
I'm sure you guys have heard of a split cam,(although haven't seen anybody mention 1) anyway, In SA, this is a fairly new idea(always behind you
guys). I got myself a 276/268 (276 on exhaust I think, 268 inlet) for my golf and was Impressed by the gain in topend with minimal loss in bottom
end(comparing to the normal 276).
Now, getting to the point, I have a 288 cam sitting in my fully modded 1600 crossflow (yet to be started->biting nails
)
and was just wandering If anybody has ever put in a split cam (say 288/276) in there crossflow?
I've not heard the phrase before. What is a split cam?
Is that the type of camera used to make porn films??
The only thing I can think you mean is a system like Honda's vtec system?
2 Cam profiles on the same shaft, the shaft 'switches' at a pre-determined engine speed allowing greater lift from the valves.
Gives the benefit of high-lift cams but without the loss in low-end grunt.
How that would translate to a crossflow I have no idea.
I read it that the cam profile is different for the exhaust than the intake? or have I got the wrong end of the shaft?
quote:
Originally posted by Big Stu
I read it that the cam profile is different for the exhaust than the intake? or have I got the wrong end of the shaft?
quote:
I read it that the cam profile is different for the exhaust than the intake? or have I got the wrong end of the shaft?
quote:
Most cams for the 8v's are cut with the same duration on the intakes as the exhausts. So a 276 will have both the intakes and exhausts at 276 deg duration. A split cam will have different exhaust durations than intake duration and what that means is that you can say have a 276 exhaust and 268 intake which gives a very nice 'inbetween' compromise. They tend to idle a lot less erratic - drop less bottom end and still have a bit of oomph up in the rev range.