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have u guys seen these cams? high lift "low" duration :D

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Old Dec 29, 2002 | 02:12 PM
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really slow truck's Avatar
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Default have u guys seen these cams? high lift "low" duration :D

not sure how good these cams would work on stock heads but dayumn... <img border="0" alt="[worship]" title="" src="graemlins/gr_hail.gif" /> stage 2 heads and that 212/220 on a 5.3L <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" />

all are made by comp cams.

206/212 .561/.578 112

212/220 .578/.595 114

216/220 .587/.595 114

What u guys think?

Bryan
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Old Dec 29, 2002 | 02:57 PM
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Default Re: have u guys seen these cams? high lift "low" duration :D

Those are some really fast ramps...almost as fast as my 214 .600 lift Thunder Racing Sleeper cam. These cams will be OK for the hard core truck racers, but they come at the price of short valvetrain life. You will need double springs (918 springs won't last very long) and be prepared to see your valves, seats, guides and rockers worn out a lot faster. Those are probably 15-20k mile cams. They will also give you tons of underhood valve clatter. Like I said, for the hard core racer, they are the hot ticket, but for a high mileage truck motor that sees daily driven duties, you may want to chose a milder grind.
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Old Dec 29, 2002 | 03:00 PM
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Default Re: have u guys seen these cams? high lift "low" duration :D

i like that 2nd one to. i have a question about cams, it seems to me for a cam to help with stock heads you would need more duration since the heads wont flow much more with higher lift but once you get heads then the extra lift will help, is that how it works?
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Old Dec 29, 2002 | 04:27 PM
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Default Re: have u guys seen these cams? high lift "low" duration :D

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Patrick G:
<strong> Those are some really fast ramps...almost as fast as my 214 .600 lift Thunder Racing Sleeper cam. These cams will be OK for the hard core truck racers, but they come at the price of short valvetrain life. You will need double springs (918 springs won't last very long) and be prepared to see your valves, seats, guides and rockers worn out a lot faster. Those are probably 15-20k mile cams. They will also give you tons of underhood valve clatter. Like I said, for the hard core racer, they are the hot ticket, but for a high mileage truck motor that sees daily driven duties, you may want to chose a milder grind. </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">yeah, i definately agree. These cams arent for everyone. but for those people who either dont mind replacing parts a little more often or those who don't mind spending money on better parts these cams will definately perform.

I was mainly just throwing these cams out because i hadn't heard of anyone in this section talking about cams with crazy lift like that and i know there are some people, though not many, who wouldn't mind the problems.

i think it would almost be worth buying a set of heads if you went with one of these though. TEA's heads for instance already come with 987 springs.

do u think a set of stage 2 heads and that 212/220 cam with all the bolt ons could push a 5.3 into the 350ish rwhp range NA? would obviously need a lil juice though <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

parish: not really sure on your answer, im sure someone else can answer it better but i think you are basically on the right track. For sure more lift with better flowing heads but i am not sure how much change you can make in duration by adding more flow
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Old Dec 29, 2002 | 04:36 PM
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Default Re: have u guys seen these cams? high lift "low" duration :D

Well remember what I am eventually gonna with, when I save for the headwork...The C1- 222/222 566/566 112. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> And yes with the double springs. <img border="0" alt="[driving]" title="" src="graemlins/gr_driving3.gif" />

Greg
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