i see alot of people bad mouthing sk2 springs and retainers WHY REASONS only if u have used them

 

You don't need to have used them to explain why they are generally not recommended. I bought them myself and sat on them for several monthes until I stumbled onto some spring rate data. Sold them and bought Omni valve train.

I believe it is Omni and/or Rocket who had done compression testing on a variety of aftermarket valve springs, and the Skunk2 valve spring rates are aggresively high, which for most street cams is not necessary and only serves to "sap" more power and increase wear on valve train components.

 

in defense of the skunk2 springs eating up rockers, i've ran a set for like 20-25k and it had zero wear on the rockers. as for spring rates yes i think they are on the stiff side

 

I guess the aggresive rate is the Omni, Rocket 2's are with platform and retainer 70 seat @ 1.340 190 nose @.500 lift. The Skunk Pro springs 80 seat @1.340 and 210 @ .500 lift. Better wire and wound in the USA.

 

sap more power how is that i am really concern cuz iam runny them on my gsr springs and retainers iam about to rebuild my motor just wanted to know wa to look for when i open my head to see if they are bad or good for the head in general going to put sk2 pro stage 2s on my car after build up good decision or not

PS would love to read the research done by omni and ....... on the sk2 springs

 

I would also like to hear some background info on the omni's and skunk2. Though I'm not about to build, my near future plans were to go with skunk2 valvetrain and Pro Series Stage 2's.

 

The cams have to rotate correct? In order to rotate the cams you must depress the valves and collapse the springs. The higher the spring rates, the more work and energy that is required to rotate the valve train. This is work that could have been used to propel you car, but instead is used to turn the motor over.

I would not get all bent out of shape though, this is nearly counting hairs. Skunks are a good product, just not the best design for most daily driven B motors with mild cams.

 

ive bent my valves after about 18k miles with skunk2 valve train. zero wear on rocker arms though.

 

Does anyone know if the pro series valve springs are "better"? Are they suited for the pro series cams (which I'm planning on buying)? Because that's what I would assume, but you never can tell.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 91integraLSVTEC &raquo;</TD></TR><TR><TD CLASS="quote">ive bent my valves after about 18k miles with skunk2 valve train. zero wear on rocker arms though.</TD></TR></TABLE>

What caused your valves to bend?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BryanPendleton &raquo;</TD></TR><TR><TD CLASS="quote">

What caused your valves to bend?</TD></TR></TABLE>


i dont know. i drove my car on the highway, shut off the car when i got to my destination, started her up and heard *tick tick tick* in #4 cylinder. thought it need a valve adjustment so did that the next day and a compression test and still made the ticking noise. few weeks later the valve dropped around 6k rpms. compression numbers were:

#1 220
#2 220
#3 215
#4 200

the retainers were slightly scalled but not cracked. but the valve train took serious 18k miles of abuse.

 

I've been running Skunk2 springs and retainers for &gt;15,000 miles, zero rocker wear, zero problems.

Apparently there is an "old style" and a "new style" but haven't gotten any more info than that. Anyone care to share spring rate info, and ways to identify which springs I have? I have the original box, if it helps.