S&S Premium Lifter Question
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Cruiser
Joined: Jan 2009
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S&S Premium Lifter Question
I've been trying to find some information on S&S lifters to no avail. Would someone please explain the differences and or the advantages/disadvantages between HL2T lifters and ones without? Thanks
Tourer
Joined: Feb 2017
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From: Saukville, WI
Sponsor
Joined: Dec 2007
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We use a large amount of S&S std lifters w/o the limiters.
Scott
Seasoned HDF Member
Joined: Dec 2005
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From: poway
I thought the limiters to to stop collapse not float. With today's EFI you really don't have to worry about over reving.
Seasoned HDF Member
Joined: Apr 2015
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From: St. Charles, MO
Yeah, me too. Only applicable in high-revving engines.
Seasoned HDF Member
Joined: Mar 2010
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From: Poolville
The limiters are to limit the amount of pump up if over reving or floating a valve and the most one can set the preload to is approximately .060" which will make for a noisier valve train when hot. I have popped a couple valves setting the preload to .140" and hitting 6700 rpm... And yes the motor was built... I didn't want to hit that rpm but it did even with the Rev limiter set to 6500... Keep in mind, S&S told me ”they will only back their lifters to 6200 rpm"... Stick with the Standard or Premiums and set them to .125"-.140".... And keep your Rev limiter set to 6000 rpm... No need to go higher... I don't "ANYMORE".... If you have the need to go higher than 6000 rpm them yes install the limiters but be prepared to put up with a noisy valve train...
Seasoned HDF Member
Joined: Dec 2005
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From: poway
The limiters are to limit the amount of pump up if over reving or floating a valve and the most one can set the preload to is approximately .060" which will make for a noisier valve train when hot. I have popped a couple valves setting the preload to .140" and hitting 6700 rpm... And yes the motor was built... I didn't want to hit that rpm but it did even with the Rev limiter set to 6500... Keep in mind, S&S told me they will only back their lifters to 6200 rpm"... Stick with the Standard or Premiums and set them to .125"-.140".... And keep your Rev limiter set to 6000 rpm... No need to go higher... I don't "ANYMORE".... If you have the need to go higher than 6000 rpm them yes install the limiters but be prepared to put up with a noisy valve train...
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Road Captain
Joined: Jan 2009
Posts: 714
Likes: 120
The limiters are to limit the amount of pump up if over reving or floating a valve and the most one can set the preload to is approximately .060" which will make for a noisier valve train when hot. I have popped a couple valves setting the preload to .140" and hitting 6700 rpm... And yes the motor was built... I didn't want to hit that rpm but it did even with the Rev limiter set to 6500... Keep in mind, S&S told me they will only back their lifters to 6200 rpm"... Stick with the Standard or Premiums and set them to .125"-.140".... And keep your Rev limiter set to 6000 rpm... No need to go higher... I don't "ANYMORE".... If you have the need to go higher than 6000 rpm them yes install the limiters but be prepared to put up with a noisy valve train...
Premiums with Limiters and my valvetrain is as quiet as a stocker....just a nice sewing machine humming, and doing work.
If you have noise (what kind of noise anyway), you have a weak link, and you need to find it, address it and fix it....and not just accept it. Run quality parts, install them correctly, and run a top level oil (I run Liquimoly). No excuses.....
BTW, do you run a shift light that comes on to warn you (shift!), BEFORE you hit your limiter and possibly damage your motor?
Have you dynoed your specific bike combo you run to know EXACTLY when and where your motor makes peak, stays there, then fades?
Im sure you know that all kinds of motor combos, cam profiles, etc, result in all kinds of rev limit set ups?
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I currently have alpha lifters. Are S&S lifters Similar to woods. As far as travel.? I was told to replace them at 20k as a precaution. I am 4k away from 20k and been looking at replacing them soon . STD S&S price seems right. I have a built tc 107 FM outlaw
Seasoned HDF Member
Joined: Mar 2010
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From: Poolville
Yeah I do... It's called a Wego III. AND IT'S CARBURETED........ Dyna 2ki....