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Old 01-06-2012, 12:06 PM   #1
AD51
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A Cam question

What kind of sound would this cam have at idle??

Cam Style Hydraulic flat tappet
Basic Operating RPM Range 2,500-6,800
Intake Duration at 050 inch Lift 234
Exhaust Duration at 050 inch Lift 234
Duration at 050 inch Lift 234 int./234 exh.
Advertised Intake Duration 278
Advertised Exhaust Duration 278
Advertised Duration 278 int./278 exh.
Intake Valve Lift with Factory Rocker Arm Ratio 0.450 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio 0.450
Valve Lift with Factory Rocker Arm Ratio 0.450 int./0.450 exh.
Lobe Separation (degrees) 106

Grind Number 278 Mega
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Old 01-06-2012, 12:54 PM   #2
Speedbumpauto
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Re: A Cam question

OK, I'll bite. It would be lumpy with that tight lobe separation and 234 @ .050
Not radical but might want a little looser converter if going in an automatic. A little might depend on where the manufacturer, or you, put the intake center line during installation. Also, the bigger the engine, the more mild the cam will act.
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Old 01-06-2012, 02:24 PM   #3
AD51
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Re: A Cam question

Thanks Speedbump... I know we dont choose a cam based on sound in the perfect world of engine building, but honestly I'm not after a "fast" motor in this application just something that sounds kinda "old school"

If I may ask, what do any of you think about this one as well?

RPM Range 1800 - 6500
Duration @ .050 Lift 224 / 234 deg int/exh
Valve Lift .465 in / .488 in int/exh
Lobe Separation 112 deg
Advance 5 deg
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Old 01-06-2012, 03:02 PM   #4
Red Foreman
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Re: A Cam question

I would go your 2nd option, its a little tamer & believe me you would be better off with more torque= better drivability.
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Old 01-06-2012, 03:59 PM   #5
AD51
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Re: A Cam question

Thanks Red Foreman, How do you think the second option would sound in a 305
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Old 01-06-2012, 04:56 PM   #6
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Re: A Cam question

It would be a nice camshaft with lope at idle in a 305 but I would still go one stage smaller depending on what you expect from your engine. I have built my fair share of sbc's & ran larger than needed camshafts only to go back change it out for a smaller less aggressive profile.
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Old 01-06-2012, 08:41 PM   #7
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Re: A Cam question

Quote:
Originally Posted by AD51 View Post
Thanks Red Foreman, How do you think the second option would sound in a 305
Sorry AD51, I made mistake of recommending a camshaft without asking about the rest of your engine components, driveline & what you plan on using your truck for??

I for one don't select camshafts on how they sound, I select them on HP/TQ & matching them too the rest of the engine components, driveline & vehicle.

I guess I'm getting more conservative with age! "I like girlie cams"
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