camshaft pressure bleed off vs. compression ratio
12-02-2002 | 06:52 PM
#11
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Joined: Feb 2002
Posts: 1,296
Likes: 1
From: LaPorte IN.
Travis,
Here is the phone number for Erson Cams. 800-641-7920. Ask for Steve Tanzi and he will help you pick the right cam for your application. Solid rollers give a wider power band and generally a flatter torque curve as opposed to hydraulic rollers. This plays well especially in a light boat. You can run a looser prop that really pulls hard in the mid range, and still have a great top end because you can just let her sing. 6000 plus RPM is no problem on a SBC. My dads 355 has 7 seasons with a solid roller and no problems. This motor turns 6000 RPM natural and 6500 on the nitrous. We don't change props, we just let her sing more R's with no prob. I think this winter we are going to pull his motor for a refresh and to try to find some more speed.
There are a lot of people afraid of solid rollers because of some of the horror stories told on OSO. Most of those are told by big block guys. 
Good luck!!
Craig
Here is the phone number for Erson Cams. 800-641-7920. Ask for Steve Tanzi and he will help you pick the right cam for your application. Solid rollers give a wider power band and generally a flatter torque curve as opposed to hydraulic rollers. This plays well especially in a light boat. You can run a looser prop that really pulls hard in the mid range, and still have a great top end because you can just let her sing. 6000 plus RPM is no problem on a SBC. My dads 355 has 7 seasons with a solid roller and no problems. This motor turns 6000 RPM natural and 6500 on the nitrous. We don't change props, we just let her sing more R's with no prob. I think this winter we are going to pull his motor for a refresh and to try to find some more speed.
There are a lot of people afraid of solid rollers because of some of the horror stories told on OSO. Most of those are told by big block guys. Good luck!!
Craig
12-02-2002 | 08:01 PM
#13
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Joined: Oct 2000
Posts: 3,372
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From: On the river
Thanks wette vette, i'll drop him a line when I get time 
My roller lifters are held straight in the bore by a retainer that holds guide plates over the lifter bores, so who makes a solid rolller that works with this GM lifter guide setup. I am not for running rollers with connecting bars, buddies at GM have tested them and it was never a good turnout..
My roller lifters are held straight in the bore by a retainer that holds guide plates over the lifter bores, so who makes a solid rolller that works with this GM lifter guide setup. I am not for running rollers with connecting bars, buddies at GM have tested them and it was never a good turnout..
Last edited by traviss; 12-02-2002 at 08:23 PM.
