Feedback about roller camshafts

modular46

Member
Joined
Jan 19, 2022
Looking for a new roller camshaft for my new engine winter project I am building. I am retiring my stock longblock so I have matching numbers before I blow it up. I'm currently running a 6262 turbo at 28 pounds of boost but I want to preserve it. So I am building a 251 stroker (GN1 kit) 109 block with aluminum heads and ported stock intake. This car will see the track about twice a year as its mostly a street car. I do not want to sacrifice low end throttle response and don't need anything that makes peak power above 5200-5400. I want something with as little of a lumpy idle as possible so I want a mild cam. I was thinking of the Comp cam 206/206 or 210/210 but I see they are 110 centerlines. I would think 112 or 114 would be better? On top of that I know roller cams are extremely hard to get now. So what is everyone using? Does anyone have sound bits of their cams? Does anyone have any sources for roller cams right now? I wont' need the cam for about 3 to 4 months as there's enough work to keep the progress going.
 
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Looking for a new roller camshaft for my new engine winter project I am building. I am retiring my stock longblock so I have matching numbers before I blow it up. I'm currently running a 6262 turbo at 28 pounds of boost but I want to preserve it. So I am building a 251 stroker (GN1 kit) 109 block with aluminum heads and ported stock intake. This car will see the track about twice a year as its mostly a street car. I do not want to sacrifice low end throttle response and don't need anything that makes peak power above 5200-5400. I want something with as little of a lumpy idle as possible so I want a mild cam. I was thinking of the Comp cam 206/206 or 210/210 but I see they are 110 centerlines. I would think 112 or 114 would be better? On top of that I know roller cams are extremely hard to get now. So what is everyone using? Does anyone have sound bits of their cams? Does anyone have any sources for roller cams right now? I wont' need the cam for about 3 to 4 months as there's enough work to keep the progress going.
Dont take this the wrong way but I think you rethink the list of parts you think you need.
A 6262 turbo doesnt need an aluminum head to see its potential and a cam as small as you listed cant utilize the head flow of the aluminum head.
So basically no gain over an iron head.
I would suggest you figure out a goal then post that up and many should be able to guide you.
I understand your new here
Also cams are hard to come by so swapping them out wont be easy.
Your 2 times a year goal to the track also will include safety equipment as a stock motor at 28psi should be well below the bar limit already.
 
Dont take this the wrong way but I think you rethink the list of parts you think you need.
A 6262 turbo doesnt need an aluminum head to see its potential and a cam as small as you listed cant utilize the head flow of the aluminum head.
So basically no gain over an iron head.
I would suggest you figure out a goal then post that up and many should be able to guide you.
I understand your new here
Also cams are hard to come by so swapping them out wont be easy.
Your 2 times a year goal to the track also will include safety equipment as a stock motor at 28psi should be well below the bar limit already.
Hello Brad Thank you for the reply. I have talked to Patrick at Precision who has worked several of these combinations. I can spin the 62-62 as hard as I want and the aluminum heads will provide more flexibility with the tune. I have a few different Buick vendors that recommend the 210-210 cam. Do you have a roller cam shaft? Any experiences you can share?
 
Hello Brad Thank you for the reply. I have talked to Patrick at Precision who has worked several of these combinations. I can spin the 62-62 as hard as I want and the aluminum heads will provide more flexibility with the tune. I have a few different Buick vendors that recommend the 210-210 cam. Do you have a roller cam shaft? Any experiences you can share?
Hi
I'm not Brad but I think you may have been misunderstood aluminum head tune flexibility isn't a real thing.
The car must be tuned properly period.
The tuning window can be narrowed or widened by compression and other things.
The 62 turbo flows x amount of air and can be utilized by an iron head
 
I use a Comp 206/206 roller (258hr) old comp 885 lifters on cleaned up but barely ported iron heads. TA 1.65 roller rockers to get more lift out of this cam. Idles smooth like the stock cam and plenty of mid-top range power. I don't spin it more than 5500 and shifts are auto at 5200, stock stroke on this engine with really good PAC/trick flow valve springs.
This cam has been 9's, I personally went 10.8@125 on this cam.
I like this cam I believe is easier on the valvetrain versus anything 212 and up with high lift.
 
Hi
I'm not Brad but I think you may have been misunderstood aluminum head tune flexibility isn't a real thing.
The car must be tuned properly period.
The tuning window can be narrowed or widened by compression and other things.
The 62 turbo flows x amount of air and can be utilized by an iron head
I am aware that a car producing 28 pounds of boost needs to be properly tuned. I tune my own car so I know what's involved. Just looking for feedback on camshafts. Thanks
 
I use a Comp 206/206 roller (258hr) old comp 885 lifters on cleaned up but barely ported iron heads. TA 1.65 roller rockers to get more lift out of this cam. Idles smooth like the stock cam and plenty of mid-top range power. I don't spin it more than 5500 and shifts are auto at 5200, stock stroke on this engine with really good PAC/trick flow valve springs.
This cam has been 9's, I personally went 10.8@125 on this cam.
I like this cam I believe is easier on the valvetrain versus anything 212 and up with high lift.Thaks
Thanks Adam. Do you know the part number? Is that cam on a 110 centerline?
 
I am aware that a car producing 28 pounds of boost needs to be properly tuned. I tune my own car so I know what's involved. Just looking for feedback on camshafts. Thanks
If you want proper feedback on the cam then you would need a different cam if you plan on running aluminum heads and a different turbo to take advantage on the head flow and increase the rpm range the spring package requirements are also different.
If not then you wasted a boat load of money on heads with a cam that wont extend rpm range that combined with weak spring pressures doesnt make for a strong combo
 
I am aware that a car producing 28 pounds of boost needs to be properly tuned. I tune my own car so I know what's involved. Just looking for feedback on camshafts. Thanks
How much power do you want to make? And how fast do you want to go?
 
Many options to consider when completing a build. I'm running the 212/212 comp hydraulic roller. Also had a 206/206 at one time in same engine. Running Champion ported irons. I love the low end power of the 212/212. That would be my vote. I let my car shift on its own. Shifts are 5300 and I run it out the back door at 6000. Power throughout all RPMs
 
mrspool is correct the aluminum head will flow lots of air plus you need to bump the compression to 9.5-10;1.
The 110 lob sep is the new thing and must work good. Honestly I have run both a 110 and 114 and I couldn't say one was better than the other.
Thats a lot of cool guy parts for a street car. would select a cam under 210 and under .500 lift and a 1.55 rocker if 5200 54OO is max RPM.
MY 210/210 @ 114 under .500 as gone 11.5 at 119 lots of times and very steerable.
 
Many options to consider when completing a build. I'm running the 212/212 comp hydraulic roller. Also had a 206/206 at one time in same engine. Running Champion ported irons. I love the low end power of the 212/212. That would be my vote. I let my car shift on its own. Shifts are 5300 and I run it out the back door at 6000. Power throughout all RPMs
Thank you for the feedback. Do you have any video of the car idling you could share? Is yoru 212/212 on a 110 centerline?
 
If you want proper feedback on the cam then you would need a different cam if you plan on running aluminum heads and a different turbo to take advantage on the head flow and increase the rpm range the spring package requirements are also different.
If not then you wasted a boat load of money on heads with a cam that wont extend rpm range that combined with weak spring pressures doesnt make for a strong combo
I am completely open minded to camshafts, what I would like to see is some sound clips of various camshafts so I can see what I can live with. Patrick at Precision says the 62-62 turbo is more than enough turbo to get into the 9's if I ever wanted that. Right now I believe that the biggest limitation for power will be duty cycle with the 120 pound injectors on E85 using the Helcat pump. I believe Racetronics is coming out with a twin internal pump that will prevent any issues.
 
mrspool is correct the aluminum head will flow lots of air plus you need to bump the compression to 9.5-10;1.
The 110 lob sep is the new thing and must work good. Honestly I have run both a 110 and 114 and I couldn't say one was better than the other.
Thats a lot of cool guy parts for a street car. would select a cam under 210 and under .500 lift and a 1.55 rocker if 5200 54OO is max RPM.
MY 210/210 @ 114 under .500 as gone 11.5 at 119 lots of times and very steerable.
Thanks for the feedback. I plan on taking the compression to 9.5. Do you have any video/sound bits of your car idling?
 
Mod, you come here looking for advise and then shut down one of the most experienced members here. You seem to have your mind made up so why bother?
 
Mod, you come here looking for advise and then shut down one of the most experienced members here. You seem to have your mind made up so why bother?
What did I shoot down? Please read all my replies before judging me. thanks. In my original post I asked for sound clips and feedback on what people run in their cars as well as an sources for cams.
 
With your current mods, what times do you run?
 
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