Hydraulic Rollers

J.R. Haddad · 01-13-2015, 03:14 PM

Who makes the lowest "plunge" hydraulic roller, or is that the result area
to be looking at? J.R.

Lou Jeffery · 01-14-2015, 10:22 AM

We have run several Hydraulic roller cam engines, Ford and Chevrolet using production lifters with no issues. Keep in mind they are relatively low lift Crate motor stock cams. Maybe WE are missing out on some performance but never any problems. Louis Jeffery

J.R. Haddad · 01-14-2015, 07:08 PM

Hi Lou, thanks for the reply. I'm not having any problem with mine, it is that when I checked them, they drop 145 thousands, and to be legal
I can run one's that only drop 30 thou. Sounds like leaving a lot on the table to me. J.R.

ss3011 · 01-14-2015, 09:35 PM

When they are running, they wont drop any. You are just measuring the total range that is built into the lifter plunger.

J.R. Haddad · 01-14-2015, 11:52 PM

SS3011, interesting. I am trying to learn about hydraulic rollers as I have never run them before. It's interesting the different opinions you can get.
I have had 2 people(1 Racer, 1 Manufacturer) tell me they have back to backed cars at the track, changing oil from 5/20 to 20/50 to keep the lifters "up", and both picked up .03-.04. Keep in mind they also had to overcome the difference in the oil. True story? Who the hell knows.
I'm just trying to buy the right stuff once, instead of twice. J.R.

Mark Yacavone · 01-15-2015, 12:16 AM

JR, It isn't very hard to restrict the travel in a hyd. lifter, once you get one apart.
Just have to use good grade, consistent thickness washers. (aviation grade or similar), once you figure out what you need.
Then you won't have to worry about it.

01-13-2015, 03:14 PM	#1
J.R. Haddad Senior Member Join Date: Jun 2012 Posts: 785 Likes: 939 Liked 1,469 Times in 308 Posts	Hydraulic Rollers Who makes the lowest "plunge" hydraulic roller, or is that the result area to be looking at? J.R.

01-14-2015, 10:22 AM	#2
Lou Jeffery Junior Member Join Date: Nov 2013 Posts: 91 Likes: 0 Liked 0 Times in 0 Posts	Re: Hydraulic Rollers We have run several Hydraulic roller cam engines, Ford and Chevrolet using production lifters with no issues. Keep in mind they are relatively low lift Crate motor stock cams. Maybe WE are missing out on some performance but never any problems. Louis Jeffery

01-14-2015, 07:08 PM	#3
J.R. Haddad Senior Member Join Date: Jun 2012 Posts: 785 Likes: 939 Liked 1,469 Times in 308 Posts	Re: Hydraulic Rollers Hi Lou, thanks for the reply. I'm not having any problem with mine, it is that when I checked them, they drop 145 thousands, and to be legal I can run one's that only drop 30 thou. Sounds like leaving a lot on the table to me. J.R.

01-14-2015, 09:35 PM	#4
ss3011 Senior Member Join Date: Feb 2002 Location: Southeast Michigan Posts: 909 Likes: 70 Liked 239 Times in 114 Posts	Re: Hydraulic Rollers When they are running, they wont drop any. You are just measuring the total range that is built into the lifter plunger.

01-14-2015, 11:52 PM	#5
J.R. Haddad Senior Member Join Date: Jun 2012 Posts: 785 Likes: 939 Liked 1,469 Times in 308 Posts	Re: Hydraulic Rollers SS3011, interesting. I am trying to learn about hydraulic rollers as I have never run them before. It's interesting the different opinions you can get. I have had 2 people(1 Racer, 1 Manufacturer) tell me they have back to backed cars at the track, changing oil from 5/20 to 20/50 to keep the lifters "up", and both picked up .03-.04. Keep in mind they also had to overcome the difference in the oil. True story? Who the hell knows. I'm just trying to buy the right stuff once, instead of twice. J.R.

01-15-2015, 12:16 AM	#6
Mark Yacavone Veteran Member Join Date: Mar 2002 Location: Miles From Nowhere Posts: 7,818 Likes: 2,910 Liked 5,126 Times in 1,954 Posts	Re: Hydraulic Rollers JR, It isn't very hard to restrict the travel in a hyd. lifter, once you get one apart. Just have to use good grade, consistent thickness washers. (aviation grade or similar), once you figure out what you need. Then you won't have to worry about it. __________________ "We are lucky we don't get as much Government as we pay for." Will Rogers