This is topic Hydraulic or Soild lifters? in forum Tech Talk at Northern California Ford Owners  .


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Posted by CMELEVU (Member # 2563) on :
 
Opinions and suggestions welcome here.

I've been thinking about going to a soild roller set up for the cam and lifters. But I've heard that the solid roller set up has to be adjusted every now and then. The motor will more than likely never see past 6500 rpm's, and from what I've seen some combos stop making power because of the limitations of the hydraulic set up.
 

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Posted by 91 5.0 (Member # 1527) on :
 
With a 6500 RPM limit, i'd say you can get by with hydraulic, unless the cam has really high lift and fast a fast ramp rate. Valvespring pressure will also affect whether or not youre going to lose lift. What are the specs on the cam?
 

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Posted by 66 AC COBRA of CA PERFORMANCE (Member # 904) on :
 
if u dont plan on making power above 6500, then dont get a solid roller
they have to be adjusted every so often ,which is more of a pain on a 5.0 because u have to pull the upper intake to get the valve covers off
i have a solid roller but i am going to be shifting around 7000-7200, so that is why a solid roller is good for me, and i have .664 lift, a little to much for a hydro cam
but for ur app, a hydro will be more than adequate
 

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Posted by Chosen1 (Member # 1906) on :
 
real men go solid roller.

solid lifters are not that high maintenance. I know atleast half a dozen people, including myself, that run solid rollers in their street cars. ONN20 checked the valve lash every month in his $10,000 Bayshore motor and rarely did they need adjustment. You'll gain 35HP right off the bat going with solid lifters over hyrdraulic.
 

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Posted by 91 5.0 (Member # 1527) on :
 
35 hp from switching from hydro to solid? Thats absolutely not true. Maybe on some wild, 7K reving combo's, but a 35 hp gain is definetly not a typical result from changing to a solid setup.
 

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Posted by Chosen1 (Member # 1906) on :
 
I dont think a 35HP gain is unrealistic. The ramp rates on a solid cam can open much quicker and close faster than a hydraulic roller. This allows for better control of the valvetrain and for more power throughout the whole rpm range. My cam is cut to make power above 4 grand, so why would I want to hit valve float 2500 rpms later. In my opinion a solid cam is a power adder.

93 Pony can tell you a million other reasons why hydraulic rollers are inferior to solid.

[ November 14, 2003, 02:27 PM: Message edited by: Chosen1 ]
 

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Posted by FordPny (Member # 510) on :
 
I agree with Chosen1,

Solid rollers are definetly the way to go,
and for the adjusting that is needed once in a while it definetly pays of in the hp end.
 

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Posted by EastCoCoRacing (Member # 638) on :
 
i also agree this is very true! some people like to comment but in fact never ran a solid cam in thier life. i run a solid cam after switching from my hrdyo cam and was told i would see at least 25hp gain and i even felt the difference!
 

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Posted by stoauto (Member # 2803) on :
 

 

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Posted by stoauto (Member # 2803) on :
 
solid roller
 

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Posted by CMELEVU (Member # 2563) on :
 
I know the cam numbers but I'm at work right now. I'll post the #'s when I get home. Guys the car is going to be driven on a mostly daily basis. I dont want to start an internet argument, just wanted some feed back, and opinons.
 

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Posted by 91 5.0 (Member # 1527) on :
 

quote:

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Originally posted by Chosen1:
I dont think a 35HP gain is unrealistic. The ramp rates on a solid cam can open much quicker and close faster than a hydraulic roller. This allows for better control of the valvetrain and for more power throughout the whole rpm range. My cam is cut to make power above 4 grand, so why would I want to hit valve float 2500 rpms later. In my opinion a solid cam is a power adder.

93 Pony can tell you a million other reasons why hydraulic rollers are inferior to solid.

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quote:

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Originally posted by EastCoCoRacing:
i also agree this is very true! some people like to comment but in fact never ran a solid cam in thier life. i run a solid cam after switching from my hrdyo cam and was told i would see at least 25hp gain and i even felt the difference!

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Pay attention. The number we're arguing over is 35 hp. Youre only proving me more correct by this post. Thanks.
 

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Posted by 66 AC COBRA of CA PERFORMANCE (Member # 904) on :
 

quote:

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Originally posted by 91 5.0:

quote:

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Originally posted by Chosen1:
I dont think a 35HP gain is unrealistic. The ramp rates on a solid cam can open much quicker and close faster than a hydraulic roller. This allows for better control of the valvetrain and for more power throughout the whole rpm range. My cam is cut to make power above 4 grand, so why would I want to hit valve float 2500 rpms later. In my opinion a solid cam is a power adder.

93 Pony can tell you a million other reasons why hydraulic rollers are inferior to solid.

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I dont think anyone said hydraulic is better. Obviously solid is better on the right combo. Everyone should know that. If you can read, you would noticed that I said a 35hp gain is not typical. Its very possible, but not typical. For instance, my car wouldnt benefit from this because it doesnt rev high enough and the cam isnt aggressive enough. 66 AC Cobra touched on this a little bit at the beginning of the thread.

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quote:

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Originally posted by Chosen1:
I dont think a 35HP gain is unrealistic. My cam is cut to make power above 4 grand, so why would I want to hit valve float 2500 rpms later.

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quote:

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Originally posted by Chosen1:

93 Pony can tell you a million other reasons why hydraulic rollers are inferior to solid.

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quote:

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Originally posted by 66 AC COBRA of CA PERFORMANCE:

quote:

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Originally posted by 91 5.0:

quote:

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Originally posted by Chosen1:
I dont think a 35HP gain is unrealistic. The ramp rates on a solid cam can open much quicker and close faster than a hydraulic roller. This allows for better control of the valvetrain and for more power throughout the whole rpm range. My cam is cut to make power above 4 grand, so why would I want to hit valve float 2500 rpms later. In my opinion a solid cam is a power adder.

93 Pony can tell you a million other reasons why hydraulic rollers are inferior to solid.

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I dont think anyone said hydraulic is better. Obviously solid is better on the right combo. Everyone should know that. If you can read, you would noticed that I said a 35hp gain is not typical. Its very possible, but not typical. For instance, my car wouldnt benefit from this because it doesnt rev high enough and the cam isnt aggressive enough. 66 AC Cobra touched on this a little bit at the beginning of the thread.

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yes ur car would benefit from a solid roller, if u put in a cam with the same specs as ur hydro u would get about 20-25 more hp
more mid liftm less deflection, it all helps
what i said in my first post was it wasnt worth it because of the maintnence, on my ride or a carb car it would be bad just take the valve covers off and adjust, but on a five oh there is much more work involved
but the solid roller would still make more power, just not worth the hassle on a low rpm street car

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