rs2 exhaust cam in a 3b

[denniselbows]

simple question who has a rs2 exhaust cam fitted in to there 3b. what have you fought about its performance since it has been fitted? i have read so much about the 7a cam and that it gives better top end. but to be honest since putting a mrc chips i find less need the rev the engine anymore. now from what i read in a thread an rs2 cam would give better low down go. just wanted some btdt. i am putting on a wagner im and ic in a couple weeks and am tempted to stick it in. but have a small dout if it would be a good move. would it **** up emissions with out a remap

[Rusty]

The RS2 exhaust cam is shorter duration but higher lift than the S2 item. The RS2 uses the S2 inlet cam so there's no probs using the two together but the RS2 cam wheel retards the whole lot by 10 degrees so running it with the S2 wheel won't really yield many gains IMO. If you can get teh cam wheel too there there will be better top end but perhaps a little less down the kottom, not a problem on the k24 IMO.

7A cam is similar timing to the S2 item but with a fair bit more lift. 7A inlet is more lift and more duration hence why it's not popular as it shifts the torque up too high and can make things a bit flat down low (from what I've read). The NM inlet cam is the one to go for, basically a 7A but advanced 6degrees, nothing that an adjustable cam wheel can't sort

Having said all that, I'm going to try a 7A inlet with standard S2 exhaust cam as on a homefried k24 there's not much point going mental in the exhaust cam stakes as the standard EM and small turbine are a fairly hefty restriction so too wild a cam would be a waste. Will report how I get on when I get round to fitting it. Thinking of getting an adjustable cam wheel if it makes a good difference.

[Flat on my back]

.

If you're going to adjust the timing between cams you will need an adjustable cambelt pulley wheel and 2 adjustable camshaft wheels.

[Rusty]

Not if I only want to adjust the inlet cam.

[denniselbows]

[QUOTE=Andy_Casey;311847]The RS2 exhaust cam is shorter duration but higher lift than the S2 item. The RS2 uses the S2 inlet cam so there's no probs using the two together but the RS2 cam wheel retards the whole lot by 10 degrees so running it with the S2 wheel won't really yield many gains IMO. If you can get teh cam wheel too there there will be better top end but perhaps a little less down the kottom, not a problem on the k24 IMO.


when you say cam wheel are you meaning cam belt pully or the chain sporket on the cam.? if you mean the cam belt pully i already have a adjustable one on at the moment . only due to shearing the key when i made the mistake of holding the pully to un do the bolt

[Rusty]

when you say cam wheel are you meaning cam belt pully or the chain sporket on the cam.? if you mean the cam belt pully i already have a adjustable one on at the moment . only due to shearing the key when i made the mistake of holding the pully to un do the bolt

Cam sprocket.

AFAIK that's the reccomended way of undoing the cambelt pulleys so sounds like a bit of bad luck.

[Jamo]

[QUOTE=denniselbows;311981]

The RS2 exhaust cam is shorter duration but higher lift than the S2 item. The RS2 uses the S2 inlet cam so there's no probs using the two together but the RS2 cam wheel retards the whole lot by 10 degrees so running it with the S2 wheel won't really yield many gains IMO. If you can get teh cam wheel too there there will be better top end but perhaps a little less down the kottom, not a problem on the k24 IMO.


when you say cam wheel are you meaning cam belt pully or the chain sporket on the cam.? if you mean the cam belt pully i already have a adjustable one on at the moment . only due to shearing the key when i made the mistake of holding the pully to un do the bolt

Lock the cam, best way is adjust wrench on the cam lobe.

[Rusty]

I'm too used ot 8V golfs.