If I still remember correctly, Autobags in Kelana Jaya sell a "Rocker X" which they claimed as good as half racing cam, I think it's modified rocker arms to give higher valve lift. Otherwise u can source a camshaft for ur 4G92 from RPW Australia, price might cost a bomb though.
Bro, better ask Powerzone themselves about the price & availibity. Go visit Powerzone website Yes, their price includes installation, u gotta give ur current cam to 'em in exchange of the new cam. About RPW, u can ask Matspeed, maybe they can source RPW product from Australia.
it is not recommended to change to high-cam for raod car.....
if u wanna enhance ur engine power, u should get all of stuff such as extractor,air filter,port&polish and etc.
at last just the high can is considered.
because high cam will have ubstable idle speed and power out[ut at low range rpm is worst than a stock.....
this is the exprience from my friend last time......
It depends on the camshaft duration, the higher the duration, the more low-RPM loss will be noticed. Camshaft around 260-270 degrees should be fine. I'm using Powerzone cam, no problem with idling. Racing cams normally start from 280 degrees duration.
changing is a good idea..but a high peformance cam will need u to change ur headers to a 4-1 ones..coz u will be emitting more exhaust gas than b4 and u will need better headers to let em' out.or else u will lose HP in this case.
i suggest if u want to change ur cam..opt for a mid-performance one.
cam pulley is used to set an optimum rpm range for high cam. if on stock pulley, it will only adjust ur rpm range power. if set advance, then ur car have instance power in low/mid rpm. if set retard then ur power comes later. it depends on ur cam and other engine modification. many mechanic just trial and error rather than put on dyno.
stock i think they put as 0 deg. retarding will be in -ve, advancing will be +ve.
however, the reality is..real stock figure would be 20deg before TDC, the intake valve opens. correct me if i'm wrong
lastime i was quoted RM 1800 for high cams in Matspeed ..DOHC ya..not single cam..
from wht i read here, Powerzone is doing the same thing as Matspeed - regrind own cams .. i think for 92P which is single cam cost below RM 1k..correct me if im wrong..
btw adj, cam pulley is not necessary but the performance of the cams wont be fully performed..unless got campulley to tune it, so u will get the optimum power or full power of the cams..
i saw in sum postings dat SRR (taiwan) kinda reasonable for a new set..
sum they took the old campulley and regrind it ,but i think a new one is better rite?
btw wif high cams, ur fuel need to do sum tunings too, to have a piggyback is more than enuf..cus u might not know that wen it comes to high rev, fuel too lean and it will make ur engine lifespan shorter or mebi KABOOM in a short run..so beware..!!
u can try having adjustable campulley first, u can feel the difference by setting it to the performance ur looking forward..den slowly upgrade other stuff like
