S&S Premium Lifter Question
Seasoned HDF Member
Joined: Mar 2010
Posts: 21,090
Likes: 7,610
From: Poolville
6 Grand? LOL..... Oh Boy, I’m in trouble.
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?
I’m sure you know that all kinds of motor combos, cam profiles, etc, result in all kinds of rev limit set ups?
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?
I’m sure you know that all kinds of motor combos, cam profiles, etc, result in all kinds of rev limit set ups?
Last edited by 98hotrodfatboy; Aug 23, 2019 at 09:32 PM.
Seasoned HDF Member
Joined: Dec 2005
Posts: 19,893
Likes: 8,001
From: poway
Heck on my 2KI, i've got the limiter set to 7000. Haven't bumped it in a while tho. Early on I did a bit. Sucker vibrates too much and parts start falling off.
Road Captain
Joined: Jan 2009
Posts: 714
Likes: 120
When you come on an open Forum and start telling people this stuff...And keep your Rev limiter set to 6000 rpm... No need to go higher.
You come off as Mr. Expert, and if it was true Im with you....but its about as accurate as All Harleys are slow...
So, you run junk stock rockers, and not Im sure whatever else you run (parts/oil?). What cam profile? Are you running Premiums with Limiters?I guess you dont know how different motor combos, cubes, bore/stroke, cam profile, valve train parts, oil, assembly and other factors tell you when and where to shift-and where a motor should bang a gear.
Hell, a bone stock TC will die at 5,500rpm!
BTW, you never answered another point you made....
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.....
If you have the right parts (again, money has zero to do with this either), you match them correctly for your goals, you assemble them correctly, and run the right oil for those parts to handle extreme conditions, you are all good. No racket, hammering, noise, or anything else will happen....period. As I said, just a beautiful sewing machine humming....doing work.
Tourer
Joined: Apr 2007
Posts: 412
Likes: 281
From:
Limiters are to prevent the lifter from bleeding down [collapsing]. Adjusted right they're as quiet as stock.
Valve float is loss of valve control. When this happens the lifter will fill up with oil & you'll have a valve [or more] hanging open. If your valve to piston clearance is tight you could bend a valve. Doesn't matter what kind of lifter is in there.
Setting up your valve train the right way doesn't have to be expensive. if you had headwork done [or are planning on it] new springs will increase your red line. New valves, guides & springs will increase it more.
I've been running travel limiters since they first came out. I also have beehive springs. Limiter set to 7200. Hit 7K every once in a while & never floated a valve. This is in an Evo.
Like Paul said:
If you have the right parts (again, money has zero to do with this either), you match them correctly for your goals, you assemble them correctly, and run the right oil for those parts to handle extreme conditions, you are all good. No “racket, hammering, noise”, or anything else will happen....period. As I said, just a beautiful sewing machine humming....doing work.
Valve float is loss of valve control. When this happens the lifter will fill up with oil & you'll have a valve [or more] hanging open. If your valve to piston clearance is tight you could bend a valve. Doesn't matter what kind of lifter is in there.
Setting up your valve train the right way doesn't have to be expensive. if you had headwork done [or are planning on it] new springs will increase your red line. New valves, guides & springs will increase it more.
I've been running travel limiters since they first came out. I also have beehive springs. Limiter set to 7200. Hit 7K every once in a while & never floated a valve. This is in an Evo.
Like Paul said:
If you have the right parts (again, money has zero to do with this either), you match them correctly for your goals, you assemble them correctly, and run the right oil for those parts to handle extreme conditions, you are all good. No “racket, hammering, noise”, or anything else will happen....period. As I said, just a beautiful sewing machine humming....doing work.
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