Noisy Roller Tip Rockers?
Thread Starter
Drifting
Joined: Jan 2002
Posts: 1,645
Likes: 11
From: Schaumburg IL
Noisy Roller Tip Rockers?
I remember reading in the forum that some people have had trouble with theComp Cams Roller Tip Rockers being noisy, even when adjusted properly. Can anybody comment on this brand?
Also, is there a real performance gain over the stamped steel long slot rockers?
Also, is there a real performance gain over the stamped steel long slot rockers?
Drifting
Joined: Nov 2000
Posts: 1,428
Likes: 0
Re: Noisy Roller Tip Rockers? (bigvette1)
Didn't gain diddly squat when I put them on my small block, not in the "seat of the pants" anyway. I have since broke 2 of them (NOT Compcams but another brand), and went back to the factory rockers. :cheers:
Race Director
Joined: Apr 2000
Posts: 17,676
Likes: 201
From: Who says "Nothing is impossible" ? I've been doing nothing for years.
Re: Noisy Roller Tip Rockers? (tnt76vette)
I know my full roller rockers are noisey with a solid cam, probably get some noise from roller tip but not muxh muxh with hydraulic cam I would think. :D
Drifting
Joined: Dec 1999
Posts: 1,462
Likes: 1
From: Reno nevada
Re: Noisy Roller Tip Rockers? (bigvette1)
I've had the CC1.6 roller tips for over ten years with my 6500 red line mechanical Crane cam. I don't notice anything. Properly adjusted with a hydrolic cam they should quiet.
Additional lift is more power up to the point where the heads don't flow any additional CFM. The % of power increase is small though. But every little bit helps:)
[Modified by Lt1er, 12:34 PM 8/6/2003]
Additional lift is more power up to the point where the heads don't flow any additional CFM. The % of power increase is small though. But every little bit helps:)
[Modified by Lt1er, 12:34 PM 8/6/2003]
Race Director
Joined: Dec 1999
Posts: 19,610
Likes: 778
From: Forked River NJ
Re: Noisy Roller Tip Rockers? (Lt1er)
I have had mine for quite some time now. I have a solid cam so most of the valve train noise is from thethe solid cam. They should be quiet on a hyd. cam. The Comp Cams roller tips are much stronger than any stamped rocker arm. I have seen a breakage test done on all types of rockers. The Comp Cams roller tips are almost the same as roller rockers as far as how much force it takes to break them. I have not heard of to many broken Comp Cams roller tip rockers. They are pretty good for any flat tappet cam.
Instructor
Joined: Mar 2002
Posts: 140
Likes: 1
From: east hampton ct
Re: Noisy Roller Tip Rockers? (bigvette1)
I put the 1.52 CC rockers on my car about two years ago and I consider them very noisy at idle. The rockers have had a noticable tick since the minute I put them on. I have repeatedly adjusted the rockers by the clacking method and by turning the pushrods until just snug and the noise won't go away. They seem to run fine and as soon as I raise the rpm above idle there is no noise. I can't tell if a tip is the culprit or one of the grooved *****.
Le Mans Master
Joined: Jun 2002
Posts: 8,339
Likes: 24
From: I can walk to MA
Re: Noisy Roller Tip Rockers? (28buick)
Noisy lifter/rocker at idle can be an indication of poor oil pressure/volume.
A few RPMS - and the pump is going good - everything quiets down.
I would look for a high volume pump over high pressure.
:seeya
A few RPMS - and the pump is going good - everything quiets down.
I would look for a high volume pump over high pressure.
:seeya
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
Thread Starter
Drifting
Joined: Jan 2002
Posts: 1,645
Likes: 11
From: Schaumburg IL
Re: Noisy Roller Tip Rockers? (bigvette1)
28buick - This is what I am hearing is the noise at idle. When the engine really warms up it pretty much goes away. The entire valve train is new, except the roller rockers which probably had about 1000 miles on them. I have adjusted both ways and still the ticking noise. Yes, the engine seems to run well. Pulls 16-17" of vacuum and idles down to 700 with a drift of only about 1/2 point on a vacuum gauge. The noise is the same before I rebuilt the engine. That is why I asked did anyone else notice this with Comp Cams RR1.72's?
When I rebuilt the engine I used a Melling High Volumn (p/n MHV xx) oil pump and a new rod. Oh yes, there is high pressure at least 60-70ibs at idle.
Guess if it runs well then don't mess with it. Break it in for 500 or so miles and maybe readjust again to see what happens.
Thanks for the responses.
When I rebuilt the engine I used a Melling High Volumn (p/n MHV xx) oil pump and a new rod. Oh yes, there is high pressure at least 60-70ibs at idle.
Guess if it runs well then don't mess with it. Break it in for 500 or so miles and maybe readjust again to see what happens.
Thanks for the responses.
