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Cam info...
- Thread starter u33db
- Start date
Been told that too.
Ive currently got 270s (fast road) in mine and was thinking about swapping them out for something else when i get the head gasflowed. The way i see it is that youve got to push the 1.8 hard to shift anyway so may as well go the whole way! 300s would give a fair increase in power above my ones id have thought....??
Surely you could just bump the idle speed up to cope with the low rpm/idle prob?
You do need to convert to solid lifters, and they have to be adjusted periodically.
If you keep hydraulic lifters with a Cam higher than 285 than you get "Valve Float" which is where the lifter loses control of the valve.
PS This info may not be 100% accurate, but I think its right
Ah got you!
I take it adjustment is fairly straightforward and what sort of period would they need adjusted at (yearly/half-yearly)?
Going by what kent say, a 300degree profile will fairly excentuate the 16v power delivery (hefty kick after 5000rpm) which would be nice! Not really bothered about the drivabilty issue as i only use it on the open road out to my folks house and cant afford the 2ltr conversion in one go so this sounds like my best bet (unique too).
Does anyone have more info on the idle issue and what expected power could be? There doesnt seem to be anyone running this profile on here....??
I thought the higher the profile cam, the more the powerband changes to be higher up, losing lower down.
That would probably contribute to the idling problem and make it a pig until you get to the magic higher rpm figure. Wouldnt have thought it would be worth it unless you are at those higher revs most of the time, like on dual carraigeways, motorways and clear roads.
Im getting another head put onto my engine. Its still a standard valver head at the time.
The new head is a valver head with 286 degrees cams from catcams, bigger inlet valves (34,6mm instead of the standard 31mm) and uprated valve springs. I cant wait to get it on and see what the difference is, but Ill let you guys know when its on.
Heres a picture of the difference in valve size and lift.
http://groups.msn.com/_Secure/0egDcAhooOiQhIH!Y4irRstLKWaiR9Jj!W9IE9chyYfG7k4DepnJzxYCSKLq5zWmEsKtf8Il6OY2Z05I5A32C1C8UW!val8uhCEI9TwKWGOFmOJNXp**Ai5aj6S9YuZzewt2CAA9KYByid2Aa*tJMC8HQWB1sT7ew9zWu9d9sEmaIvc64FSa50w/oudekleppenoudelift%20versus%20nieuwe%20kleppen%20nieuwe%20lift">
LOOK AT THE SIZE OF THOSE SEATS!!!!!
you really really dont need them that big lol...
and the shrouding on the corners....well not too bad.
IN reality you should not be going over the lift and valve size that you need to make the power you want. i.e. lifting the valve higher than it needs to be to make the flow needed for the power you want jsut adds problems to the valve train and you end up playing with alot of factors you really shouldnt need to. Seat pressures particuarly.
