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11-03-2002, 05:44 PM   #1 (permalink)
giddyup1
 
Join Date: Dec 2001
Posts: 669
cam noise

based on what blue streek said about his solid roller cam being noisey,in comparison to a solid flat tappet cam, how much noisier is a solid roller??
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11-03-2002, 08:33 PM   #2 (permalink)
bluestreek
 
Join Date: Nov 2001
Posts: 1,470
cam noise

A solid roller cam has a more radical profile to open and close the valves faster and harder and also they require stronger springs. All of it working together makes for about a 20% increase in engine noise. It's not really a loud ticking noise like loose hydraulic rockers, it's more like the loud hum of a turbo diesel.[img]/phpBB/images/smiles/icon_biggrin.gif[/img]
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11-03-2002, 10:08 PM   #3 (permalink)
deleted2
 
Join Date: Jan 2002
Posts: 8,409
cam noise

I don't know about that. My rollers are a lot quieter than my flat tappets. Now, a Chevy... that's noisy!
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11-03-2002, 11:08 PM   #4 (permalink)
bluestreek
 
Join Date: Nov 2001
Posts: 1,470
cam noise

<TABLE BORDER=0 ALIGN=CENTER WIDTH=85%><TR><TD><font size=-1>Quote:</font><HR></TD></TR><TR><TD><FONT SIZE=-1><BLOCKQUOTE>
On 2002-11-03 21:08, qtrmiler wrote:
I don't know about that. My rollers are a lot quieter than my flat tappets. Now, a Chevy... that's noisy!

</BLOCKQUOTE></FONT></TD></TR><TR><TD><HR></TD></TR></TABLE>

What is your valvetrain setup? Mine has alum heads, 7/16 studs, screw-in guides, and Angus 1.6 alum. rockers and alum. valve covers. Maybe all the alum. makes it more noisy.[img]/phpBB/images/smiles/icon_confused.gif[/img]
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11-03-2002, 11:30 PM   #5 (permalink)
deleted2
 
Join Date: Jan 2002
Posts: 8,409
cam noise

Aluminum Blue Thunder heads, 1.8 rockers, fab valve covers. That might be part of it. Does your car have mufflers? Mine just has 4" bullets so it's a little loud.
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11-04-2002, 12:56 AM   #6 (permalink)
ckelly
 
Join Date: Apr 2002
Location: Merkel, Tx
Posts: 8,214
cam noise

4" bullets! You might not know you're missing a couple of valves until you see the holes in the hood. [img]/phpBB/images/smiles/icon_lol.gif[/img]
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11-04-2002, 01:05 AM   #7 (permalink)
bluestreek
 
Join Date: Nov 2001
Posts: 1,470
cam noise

Yep.. A full 2.5" exhaust system would definatley allow you hear your valve train better than 4" BULLETS! [img]/phpBB/images/smiles/icon_eek.gif[/img][img]/phpBB/images/smiles/icon_eek.gif[/img]
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11-04-2002, 03:17 AM   #8 (permalink)
deleted2
 
Join Date: Jan 2002
Posts: 8,409
cam noise

Believe me... mid 1.20 short times, you'll know when it drops a valve[img]/phpBB/images/smiles/icon_biggrin.gif[/img] You'd be suprised how quiet this thing is, being low doesn't hurt. Problem is, if I used a 2 1/2" exhaust I couldn't run in the 8's(quarter mile) anymore! [img]/phpBB/images/smiles/icon_biggrin.gif[/img]
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11-04-2002, 04:16 AM   #9 (permalink)
Calypso
 
Join Date: Aug 2002
Posts: 261
cam noise

Nope, it's not quiet, it's you ears man... after all that thunder![img]/phpBB/images/smiles/icon_lol.gif[/img]

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Calypso
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