solid roller guys please step in
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From: Little Rock, AR
Guys, I am still up in the air on the lifters. Do I want a lifter with a cross bar? I kinda like the idea of having a lifter that fits in the trays so I can do a cam swap without pulling the heads.
recommendations anyone?
recommendations anyone?
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From: Little Rock, AR
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From: Upstate NY
I am thinking of changing to a solid roller setup. I have a C5 6 speed with a LS3 418ci, AFR 225's, Fast 90/90, 12 to 1, with a hyd roller 251/258 660/595 on a 111 + 4. I have the motor pulled down and want to make some changes. I run a direct port and a plate on the combo but mostly run on motor. I am thinking about changing the hyd to solid. My motor makes power to 6400 and falls off. It makes 550/500 on motor. I am looking for more power and rpm to better my ET. My questions are.
Do you like a solid roller over the Hyd?
Does the solid still have good power down stairs?
What lifters, springs and rockers are you running?
What cam are you running?
Dyno graphs?
I have been talking with Tony (AFR) and Patrick G about a cam choice. Tony is a awesome guy and has taken lots of his time to educate me and help me make the correct choice. I want to do a max effort all motor combo but still hit the juice when needed. Any help would be greatly appreciated.
Do you like a solid roller over the Hyd?
Does the solid still have good power down stairs?
What lifters, springs and rockers are you running?
What cam are you running?
Dyno graphs?
I have been talking with Tony (AFR) and Patrick G about a cam choice. Tony is a awesome guy and has taken lots of his time to educate me and help me make the correct choice. I want to do a max effort all motor combo but still hit the juice when needed. Any help would be greatly appreciated.
If you have valvetrain instability @ 6400 you need to work on that first. Just because power is falling off doesn't mean the valvetrain has given up, but it very well could be. Fixing that is Job #1.
As to hydraulic or solid lifters, a properly designed hydraulic roller LS valvetrain will easily run past 7000. Some are going to 8000 every pass. It's not the type of lifter that makes more power when you change cams, it's the lift, duration, LSA, and overall valve motion that does it.
Yes, some folks have been very successful (for many years) running hydraulic lifters on lobes designed for solid lifters. Joe Sherman would probably call that a "speed secret".
Every engine/valvetrain combination is specific, so others' experience may not be all that helpful to you for specific parts. If all of the valvetrain parts don't get along very well you aren't going to get the rpm and stability you are after. That suggests to me a complete valvetrain design, not just a collection of parts...which happens all too frequently.
I will say that going with the correct valvetrain parts for a 7000+ HR setup on an LS is less expensive and less abusive to the valvetrain than most SR setups.
Jon
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From: Little Rock, AR
The intake runner length on the FAST is going to limit the power peak rpm. If you want to make peak power in the 7000+ rpm area, you'll need different runner lengths. I'm fairly sure that has been suggested to you.
If you have valvetrain instability @ 6400 you need to work on that first. Just because power is falling off doesn't mean the valvetrain has given up, but it very well could be. Fixing that is Job #1.
As to hydraulic or solid lifters, a properly designed hydraulic roller LS valvetrain will easily run past 7000. Some are going to 8000 every pass. It's not the type of lifter that makes more power when you change cams, it's the lift, duration, LSA, and overall valve motion that does it.
Yes, some folks have been very successful (for many years) running hydraulic lifters on lobes designed for solid lifters. Joe Sherman would probably call that a "speed secret".
Every engine/valvetrain combination is specific, so others' experience may not be all that helpful to you for specific parts. If all of the valvetrain parts don't get along very well you aren't going to get the rpm and stability you are after. That suggests to me a complete valvetrain design, not just a collection of parts...which happens all too frequently.
I will say that going with the correct valvetrain parts for a 7000+ HR setup on an LS is less expensive and less abusive to the valvetrain than most SR setups.
Jon
If you have valvetrain instability @ 6400 you need to work on that first. Just because power is falling off doesn't mean the valvetrain has given up, but it very well could be. Fixing that is Job #1.
As to hydraulic or solid lifters, a properly designed hydraulic roller LS valvetrain will easily run past 7000. Some are going to 8000 every pass. It's not the type of lifter that makes more power when you change cams, it's the lift, duration, LSA, and overall valve motion that does it.
Yes, some folks have been very successful (for many years) running hydraulic lifters on lobes designed for solid lifters. Joe Sherman would probably call that a "speed secret".
Every engine/valvetrain combination is specific, so others' experience may not be all that helpful to you for specific parts. If all of the valvetrain parts don't get along very well you aren't going to get the rpm and stability you are after. That suggests to me a complete valvetrain design, not just a collection of parts...which happens all too frequently.
I will say that going with the correct valvetrain parts for a 7000+ HR setup on an LS is less expensive and less abusive to the valvetrain than most SR setups.
Jon
Wow. I have been racing and building motors for 20 plus years and didn't know the cam is what gave you the increased power and not the lifter. Thanks that's good info.
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From: Upstate NY
Have you been using hydraulic lifters on solid lifter lobes for 20 years? If so, you were ahead of most people. Good for you.
I'll guess that you also use lighter non-adjustable rockers on your better solid lifter engines. Again, good for you!
Jon
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Glad to see you have an open mind after all those years.
Have you been using hydraulic lifters on solid lifter lobes for 20 years? If so, you were ahead of most people. Good for you.
I'll guess that you also use lighter non-adjustable rockers on your better solid lifter engines. Again, good for you!
Jon
Have you been using hydraulic lifters on solid lifter lobes for 20 years? If so, you were ahead of most people. Good for you.
I'll guess that you also use lighter non-adjustable rockers on your better solid lifter engines. Again, good for you!
Jon
I am going solid roller with solid lifters, adjustable Jesel shaft mount rockers, ect.
If you don't have advice about the above setup then go be a **** somewhere else. You can rant about the hydraulic on a solid all you want but that's not what I am going to do. Period. I had great luck with my old setup. Good enough to be in the top 5 fastest C5 6 speeds in the world. I would say my choice of parts was pretty damn good.
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From: Upstate NY
My title said (SOLID ROLLER GUYS ) not dumb *****. I think you are in the wrong thread.
I am going solid roller with solid lifters, adjustable Jesel shaft mount rockers, ect.
If you don't have advice about the above setup then go be a **** somewhere else. You can rant about the hydraulic on a solid all you want but that's not what I am going to do. Period. I had great luck with my old setup. Good enough to be in the top 5 fastest C5 6 speeds in the world. I would say my choice of parts was pretty damn good.
I am going solid roller with solid lifters, adjustable Jesel shaft mount rockers, ect.
If you don't have advice about the above setup then go be a **** somewhere else. You can rant about the hydraulic on a solid all you want but that's not what I am going to do. Period. I had great luck with my old setup. Good enough to be in the top 5 fastest C5 6 speeds in the world. I would say my choice of parts was pretty damn good.
You are correct about one thing...I'm in the wrong thread. You want affirmation, not ideas that might help. Bob Lutz said it well.
I really don't care what you are going to do. You are proud of your parts choice, so run with it...no matter what it costs.
20 years???
Jon
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Evidently I hit a tender spot.
You are correct about one thing...I'm in the wrong thread. You want affirmation, not ideas that might help. Bob Lutz said it well.
I really don't care what you are going to do. You are proud of your parts choice, so run with it...no matter what it costs.
20 years???
Jon
You are correct about one thing...I'm in the wrong thread. You want affirmation, not ideas that might help. Bob Lutz said it well.
I really don't care what you are going to do. You are proud of your parts choice, so run with it...no matter what it costs.
20 years???
Jon
Actually the solid roller set up with the short travel hydraulic lifters RPM better than the solid/solid setup on the LSx motors. Lots of test have been done on the spintron to verify this.
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From: Little Rock, AR
I am glad you like the solid/hydraulic setup. I wish you luck with that. I am sure they perform awesome. I am going solid/ solid. I am not trying to be a dick here. I am asking for solid/solid info. Not solid/ hyd. Thanks anyway.
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From: Little Rock, AR
Well it looks like I am going to replace my heads also. I have outgrown my AFR 225's
I run PBM solid roller lifters and they are working fine. PBM are made by Morel. If your looking to change heads, look into ETP as they make some great heads. Are you looking for a big nasty cam or street able solid roller cam?
