Scorpion rockers

[Dr.drivability]

Is it common for scorpion rockers to be noisy? I have a Full Throttle X3 215/220 comp roller cam. Comp calls for 1/2 turn past zero lash, so I go exactly 5/8 turn just to be safe. Very happy with the cam and valvetrain, just seems a little loud. Thanks, Dave

 

[johnnyttype]

Is it common for scorpion rockers to be noisy? I have a Full Throttle X3 215/220 comp roller cam. Comp calls for 1/2 turn past zero lash, so I go exactly 5/8 turn just to be safe. Very happy with the cam and valvetrain, just seems a little loud. Thanks, Dave

is this your first roller cam...im guessing with comp lifters? does it sound like a typewriter under the hood. As long as it is not too loud it is a normal noise that you will learn to live with

I had the same questions, was checking everything under the hood, pulling valve covers and more! then i figured out it was just a normal noise and have lived with it for the last 18K or so. my theory was that my cam, .496" lift and only 206 duration at .050" has a very aggressive slope/ramp, acceling the lifters faster than factory, causing the extra valvetrain noise. dont know if its true but i can now drive the car without worrying about the noise:biggrin:

 

[Nick Micale]

Since the Scorpions are made for a Chevy engine, when adapting them to a Buick, the valve train geometry is not exactly correct.

One of the results of this is that they are usually noisier than the shaft mounted roller rockers.

 

[johnnyttype]

Since the Scorpions are made for a Chevy engine, when adapting them to a Buick, the valve train geometry is not exactly correct.

One of the results of this is that they are usually noisier than the shaft mounted roller rockers.

ive heard roller rockers in general are noisey, is this true, when compared to stockers?

and also, are there pics of how you adapt scorpions rockers to a buick? ive always wondered how this was done

 

[CL87]

I am running them also and I thought they were too loud, but everyone that has run them said they are just that way.

 

[kraus]

mine sound like a type writer also not super loud but make some noise yes.

 

[Clark6]

i went back and adjusted mine now they are a tad louder than stock with typewriter sound that is ,, since i redone mine they were loud & thought is was normal but i went back and adjusted them i cannot believe how quiet they were at first just like stock but a few days of driving they went back to the typewriter sound but not loud at all in my opinion, not the ticking, clacking sound i had at first it just have the mellow type writer sound or slight diesel truck sound to let you know you have a roller. Now for the hydraulic roller the lash on the comp web site said to adjust it 1/4 turn past zero lash.. i thought it would be louder with that preload but it is not, i only did one side for putting in arp studs after the champions broke on me i gotta do the other side this fall. im scared its gonna be loud if i bother with it, id rather leave well enough alone but i need to put the arps in just in case the studs break again it was not pretty with oil going every where when it broke the last time.

 

[BetMinesFaster]

I have T&D 1.65's with a 218 flat tappet and they are definately a bit noisy....I have learned to live with it!

 

[Phoneguy]

I went 3/4 turn on my Scorpions and they are much quieter. Still make noise but not like before.

Bryan

 

[hemi8]

1/4 turn. 1/2 turn, 3/4 turn, doesn't matter, I've tried them all and its still the same, sounds like a solid cam. I've set the preload per ATR, per Comp Cams, Per Conley etc. Now I go with 1/2 turn and roll with it.
Mike
86 GN