Erson vs. Comp Cams

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roccodart440

roccodart440

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Looking at a roller cam to compliment my soon to be ported heads.

Was wondering if you guys had any first hand comparasins of these two companies and any first hand recomendation in choosing one of the 2?

Solid roller, 250ish duration, mid .600's lift 112c
 
I think it would be easier if we could compare two actual grinds.
 
Erson.com?
Your planned combo?
Intended use?
 
i dont think erson is around anymore. I know you can call PBM and get forwarded to "Erson" but nobody has picked up since 2010. That said my direct line's dont work either.
 
RustyRatRod said:
I think it would be easier if we could compare two actual grinds.
Click to expand...

The grind specs will be identical and both would be custom grinds. The purpose of this grind is to have excellent street manners (112ls), enough duration to make power [email protected] and enough lift to take advantage of the ported heads. (.650)
 
Compare these.

Erson 252/256 @ .050", .430"/.430" lobe lift, .645" w/ 1.5, .688" w/1.6, 174/178 duration @ .200", 112 LS.

Comp Cams 252/256 @ .050", .418"/.423" lobe lift, .627"/.635" w/1.5, .669"/.677" w/1.6, 175/179 duration @ .200", 112 LS
 
I have 1:5 ratio Harland Sharp Rockers and do not really want to buy another set. They work really well for me as in they don't break and they hold the lash really well.

Erson 252/256 @ .050", .430"/.430" lobe lift, 645" lift
174/178 duration @ .200", 112 LS.

Comp Cams 252/256 @ .050", .418"/.423" lobe lift, .627"/.635"
175/179 duration @ .200", 112 LS

IQ52, i've never seen duration at .200. If both cams have the same duration at .050 but differ at .200, what does this tell us about a cam. :coffee2:
 
IQ52 said:
Compare these.

Erson 252/256 @ .050", .430"/.430" lobe lift, .645" w/ 1.5, .688" w/1.6, 174/178 duration @ .200", 112 LS.

Comp Cams 252/256 @ .050", .418"/.423" lobe lift, .627"/.635" w/1.5, .669"/.677" w/1.6, 175/179 duration @ .200", 112 LS
Click to expand...

I like the Comp. More duration @ .200 means it's hangin the valves open a lot longer.
 
Pretty agressive Erson 254/260 @ .050, .450 lobe lift, .675" @ 1.5, 177/181 @ .200", 112 LS.

Same timing as the Comp XR292R but with more lift. 254/260, .582/.588 lift @ 1.5, 176/181 @ .200". 110 LS.

Better use Mikes good Pro-Plus lifters
 
roccodart440 said:
I have 1:5 ratio Harland Sharp Rockers and do not really want to buy another set. They work really well for me as in they don't break and they hold the lash really well.

Erson 252/256 @ .050", .430"/.430" lobe lift, 645" lift
174/178 duration @ .200", 112 LS.

Comp Cams 252/256 @ .050", .418"/.423" lobe lift, .627"/.635"
175/179 duration @ .200", 112 LS

IQ52, i've never seen duration at .200. If both cams have the same duration at .050 but differ at .200, what does this tell us about a cam. :coffee2:
Click to expand...

Longer duration at .050 means it's opening the valve quicker. More area under the curve. Harder on the valve train components. More power.
 
I like the Comp here. Seems to be slightly easier on valve train parts (if street driven,will be a factor) and would be curious about the exhaust closing ramp hanging open longer,than the old Sig grind. Technology,has it's merits.
 
Abodybomber said:
I like the Comp here. Seems to be slightly easier on valve train parts (if street driven,will be a factor) and would be curious about the exhaust closing ramp hanging open longer,than the old Sig grind. Technology,has it's merits.
Click to expand...

The old "Sig" grind huh? And the last time you saw the ERSON lobe catalog or spoke to an Erson representative or ran an Erson cam was?
 
Abodybomber said:
I like the Comp here. Seems to be slightly easier on valve train parts (if street driven,will be a factor) and would be curious about the exhaust closing ramp hanging open longer,than the old Sig grind. Technology,has it's merits.
Click to expand...

The comp cam has the more aggressive lobe which would be harder on valvetrain although i'm not sure how much difference there is in a couple degrees at .200.

IQ52 said:
The old "Sig" grind huh? And the last time you saw the ERSON lobe catalog or spoke to an Erson representative or ran an Erson cam was?
Click to expand...

Although your response was to Bomber, this was in part why I chose the Comp Cam. After talking to my local builder (who uses a lot of comp cam stuff with great success) I like the fact that comp cams are big, mainsteam and accessable, tech line, phone etc.

Some other reasons, They don't even advertise mopar cams on their website. To view their complete catalog you have to order one for 10$.
http://www.pbmperformance.com/store.php?catId=327
 
Nothing at all wrong with choosing the Comp cam. Choosing the one you have the most faith in is a good idea.

There should be no functional difference between the two cams and both are custom grinds.
 
Lot's of stuff happening that will not be seen looking at a few numbers of a chart. Will it make a difference,yes it will.
 
Naturally, I'm Erson biased, but the engine builder in me is going to tell you that you're not going to see any difference in the two cams. They're so close that the only difference you'll see is in your valve train. Our cam will be easier on your valve springs and rocker arms, but overall horse power and torque I believe will be the same.
 
ErsonCamShop said:
Naturally, I'm Erson biased, but the engine builder in me is going to tell you that you're not going to see any difference in the two cams. They're so close that the only difference you'll see is in your valve train. Our cam will be easier on your valve springs and rocker arms, but overall horse power and torque I believe will be the same.
Click to expand...


That is an honest answer and I appreciate it.

I drive the car a lot on the street which is why IQ52 went 112ls and didn't go crazy with duration. But kept the lift high to take advantage of the ported heads.

What's that roller cam going to run me cost wise. Feel free to PM me if you would rather. I'm interested and haven't made my mind up yet. Running a little behind on this project.
 
I will answer all questions truthfully and honestly. We're striving to give engine builders and users the best product we can. Any feedback is appreciated. PM me any questions.
 
This is pretty funny. I tried to get an Erson rep to answer the phone for almost two solid years and here one pops up. It figures.
 
I've been calling Erson since 2005 and have gotten immediate answers everytime. I don't believe it's just 'cause I'm calling. I'm not that important.
 
You've been lucky because I am not the only one.
 
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