My feeling is that this would be acceptable, but there is no margin of safety. If you have an manual transmission, then get a really good rev limiter. If you have an automatic, then you probably can't break anything. If you want to build in some safety, then advance the cams a bit to bring the power curve down the rev range. This will lower the optimal shift point and should help your perception for shifting and help prevent over revs.
the way i see it, even if you were getting stage 1's, i would still upgrade the valve train
do it right the first time to avoid $$$ spent and headaches down the line
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-Anthony- PSN/Xbox Live GT: Evoking1230
2005 EVO VIII-SOLD/R.I.P.
2000 Honda Prelude SH - Gone But Not Forgotten
Yeah, I dont think its worth it. If your going to do it, do it the 'right' way. I am still trying to decide between stage 1 and 2 crower cams. If i do stage 1, I wont upgrade the valve train for the sake of saving money, but if you go to stage 2, you need to get better springs/ retainers.
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high altitude= low hp. Be happy sea level people...
i actually ran the stage 2 crower cams with the stock vavletrain for a while....dont think anyone else should do it...although nothing broke except the cams but i dont know if this was a direct result of running them without the srpings and retainers.
only advice
MAKE SURE YOU BUY YOUR CAMS DIRECTLY FROM CROWER.
they sent me new cams with a 30 second phone call
they also sent me new stainless valves since mine were bent when the cams failed.....
your cams snapped? how did u happen to find out they snapped? a big bang?? that's not the first time i heard crower cams breaking.. hmmmm.... crower cams are supposed to be bad ass too!! wassup w/that??
I have corwe stage 2 cams with stock idle lonbes and i'm runing them on stock valve train. Yes i also have auto ... but i havent noticed anything. One thing is that i'm still not tuned after a year of having them on the car.
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-KIRILL-
Still Single and employed but hate my job! Nothing has changed.
The stage 2 work with a stock valvetrain but it runs the valve springs to their limits. I would not do it for any extended interval. I also would only run stock clearances and not tighten the valve clearance any.
I would suggest other springs. You can't change them on the head easily, though. If you don't want to spring for new retainers or risk the short lifespan of Ti you can get Portflows that use the stock retainers.
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