Anyone Running Solid Roller Lifters???
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Seasoned HDF Member
Joined: Mar 2010
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From: Poolville
Anyone Running Solid Roller Lifters???
I would like to know or hear from anyone that is running Solid Rollers in their build and if they are running a solid lift cam or a hydraulic cam with solid rollers and noticed any performance gains.. Don't really care about added noise warm.. I do understand that going to a solid roller on a hydraulic cam will change the duration because the hydraulic lifter will collapse a little initially opening the valve a little later than a solid would.. Anyways just curious... I know I ran hydrosolids in my shovel and they worked very well.. I even set them to 1 flat of preload...
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From: Pine Flat Dam/South Bay Area, CA
Road Captain
Joined: Mar 2020
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From: Sierra foothills
Yes you are right.
I've never run solids on a harley. I was thinking of my much younger days adjusting tappets (valve lash) on late 40s and early 50s Fords and Chevy. I think maybe they called them tappets because they tapped.
I've never run solids on a harley. I was thinking of my much younger days adjusting tappets (valve lash) on late 40s and early 50s Fords and Chevy. I think maybe they called them tappets because they tapped.
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Seasoned HDF Member
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From: Poolville
1 flat on a 32 TPI pushrod is only .005" it's not enough to cause any cold start problems and as the motor heats up and expands it will end up with at least .012" of lash.. Not and issue...
Last edited by 98hotrodfatboy; Mar 31, 2024 at 07:22 PM.
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Seasoned HDF Member
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From: Poolville
And what do you think the sleeves are made of.. .060" is a lot and I don't Believe they grow that much..
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Club Member
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From: Niles Canyon Ca.
Evo upper ends gets feed through the pushrods pumped by the lifter's don't they ? Limiters or solids kinda puts a kink in that wouldn't it ?
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Tourer
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From:
No. Limiters shorten the available travel of the piston. They have zero effect on the oil supply to the top end.
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From: Florida
Should I assume this is in the context of EVO? Not sure if there are even any good grinds available in EVO for solids? With Shovel its my preference! So many advantages with solids.
1) The noise intimidates whoever sits in the right lane.. puts a fear in their mind that they are in a lane next to a crazy persons whos motor will grenade.
2) You can play with valve lash to see if less exhaust duration would help by running a lap or two with excessive lash.
3) You can maximize geometry by use exceptionally low adjusting lifters with lighter solid chromoly pushrods (6500+ rpm)
4) Never worry again about collapsing a lifter
5) Easier to check rocker arm and box clearances
6) Less expensive
7) Possibly less taxing on oil pressure
Secrets I should keep to myself: But hey, who bothers to read my posts lol. Look for old sifton solid adjustable lifters. They are wonderfully made with sturdy wheels.. the adjusting rods are super low in the lifter helping valve geometry. Grinding the blocks out for increased lift is easy. The sifton solid lifters are harder and harder to find I have just one NOS set left..
1) The noise intimidates whoever sits in the right lane.. puts a fear in their mind that they are in a lane next to a crazy persons whos motor will grenade.
2) You can play with valve lash to see if less exhaust duration would help by running a lap or two with excessive lash.
3) You can maximize geometry by use exceptionally low adjusting lifters with lighter solid chromoly pushrods (6500+ rpm)
4) Never worry again about collapsing a lifter
5) Easier to check rocker arm and box clearances
6) Less expensive
7) Possibly less taxing on oil pressure
Secrets I should keep to myself: But hey, who bothers to read my posts lol. Look for old sifton solid adjustable lifters. They are wonderfully made with sturdy wheels.. the adjusting rods are super low in the lifter helping valve geometry. Grinding the blocks out for increased lift is easy. The sifton solid lifters are harder and harder to find I have just one NOS set left..
Last edited by Rains2much; Apr 1, 2024 at 08:34 AM.