COMP CAMS vs. CRANE CAMS
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Junior User
Joined: Mar 2004
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From: Texas
COMP CAMS vs. CRANE CAMS
ok im going to open up the bucket of worms, but all most every one on here likes the 901 or 941. it looks like a good cam but is there any thing wrong with comp? i mean they have the magnum, duel energy,high energy,and extrem energy. Im thinking about the magnum280H in my truck. good? bad?
i want a BIG lope and it to run good. but is there any crane's like it?
i want a BIG lope and it to run good. but is there any crane's like it?
FE "Freakin Expensive"
Joined: Dec 2003
Posts: 6,461
Likes: 4
From: Smith Mountain Lake, VA
Well Ya have to stop and think about also, Im not an advocate for any Cam Manfacturer!!! I'll let that be said in a heart Beat!!!
If your running a 4 Spud there Drag...you can do preety much what your motor will take..Induction, fuel,Vs..compression how you want to drive it..
With that said...Shoot ya want something that has a good lope...Go to a soled roller cam.. with a .700" plus lift??
All cam Companies have anout the same grind +or- with that..I try to stay with matching components...Why..all these Manufacture's spend MILLION'S of dollars on R&D for there stuff, so they can get your Biz...and sell you a package??
Some work and some dont.. On my 433 Cobra build the top end is all by the same Company, but I chose to go with Erson Roller rocker's instead of Crane.. And KC Stage IIs Heads, But ya have to watch what you mix and Match, If your machine shop is not on top of todays HI-PO parts, Back out!
And make for sure there a good FE builder!! Kieth Craft!! Thats the man!!
Russ
If your running a 4 Spud there Drag...you can do preety much what your motor will take..Induction, fuel,Vs..compression how you want to drive it..
With that said...Shoot ya want something that has a good lope...Go to a soled roller cam.. with a .700" plus lift??
All cam Companies have anout the same grind +or- with that..I try to stay with matching components...Why..all these Manufacture's spend MILLION'S of dollars on R&D for there stuff, so they can get your Biz...and sell you a package??
Some work and some dont.. On my 433 Cobra build the top end is all by the same Company, but I chose to go with Erson Roller rocker's instead of Crane.. And KC Stage IIs Heads, But ya have to watch what you mix and Match, If your machine shop is not on top of todays HI-PO parts, Back out!
And make for sure there a good FE builder!! Kieth Craft!! Thats the man!!
Russ
Post Fiend
Joined: Feb 2001
Posts: 6,624
Likes: 8
From: Missouri
Here is my take on it.
Comp cams makes cams with less lift but a quicker opening rate towards the bottom of the lift curve. Crane makes cams that start off opening a little slower but move a little faster towards the top. Comp cams tends to like close LCAs.
Crane Likes wider LCAs and higher lifts.
I am absolutely positive that Cranes cams have caused somebody a lot of heart-ache but I have never met one of those people.
Comp on the other hand have had a bad rap for lobes going flat and dizzy gears being ground wrong and then denying it. In the SBC crowd they have had some problems with cams snapping in half.
The way I see it is that comps cams might make a little more power sometimes but it seems like you almost have to do something stupid to mess one up.
The 292H is a pretty decent cam profile. I think the Crane's 296 cam is a better choice. It is the same as the edel RPM cam. The lower LCA on the Crane will bump up the low end torque where the extra duration takes it away.
Comp cams makes cams with less lift but a quicker opening rate towards the bottom of the lift curve. Crane makes cams that start off opening a little slower but move a little faster towards the top. Comp cams tends to like close LCAs.
Crane Likes wider LCAs and higher lifts.
I am absolutely positive that Cranes cams have caused somebody a lot of heart-ache but I have never met one of those people.
Comp on the other hand have had a bad rap for lobes going flat and dizzy gears being ground wrong and then denying it. In the SBC crowd they have had some problems with cams snapping in half.
The way I see it is that comps cams might make a little more power sometimes but it seems like you almost have to do something stupid to mess one up.
The 292H is a pretty decent cam profile. I think the Crane's 296 cam is a better choice. It is the same as the edel RPM cam. The lower LCA on the Crane will bump up the low end torque where the extra duration takes it away.
FE "Freakin Expensive"
Joined: Dec 2003
Posts: 6,461
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From: Smith Mountain Lake, VA
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Junior User
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im not picking sides. i just want to know everything i can before i spend any money. the pro's and the cons for everything. now what does everone think would be the best 4 me? crane,comp or even edel.
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FE "Freakin Expensive"
Joined: Dec 2003
Posts: 6,461
Likes: 4
From: Smith Mountain Lake, VA
Well Drag, I had asked in an earlier thread...are you going to run stock heads? buying big heads? Ya have to get both to work with each other...then stall for auto and then rear gear's... but you want something with a good lope to it?
Ya also have to remember that even tho a Cam company says,good Idle, or smooth Idle, Or rough Idle, Or radical race idle?? A rule of thumb..Is the larger CI..the less of a lumpy Idle you will have...as Rat was saying..there's all kinds of choice's and what might work in a 428 even tho its also made for a 352..depending on CI , stroke, its going to act different..Usually the smaller the bore and stroke, the more Radical the cam will seem...
Good luck, Russ, I myself would take a good look at the CRN-941 and the Edel RPM... but thats just me....
Ya also have to remember that even tho a Cam company says,good Idle, or smooth Idle, Or rough Idle, Or radical race idle?? A rule of thumb..Is the larger CI..the less of a lumpy Idle you will have...as Rat was saying..there's all kinds of choice's and what might work in a 428 even tho its also made for a 352..depending on CI , stroke, its going to act different..Usually the smaller the bore and stroke, the more Radical the cam will seem...
Good luck, Russ, I myself would take a good look at the CRN-941 and the Edel RPM... but thats just me....
Last edited by RapidRuss; Aug 26, 2004 at 05:51 PM.
Elder User
Joined: Jun 2001
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From: Corpus Christi, Texas
Hey Drag I am running a 292H comp cam and I seem to like it alot, but the draw back on the cam is it has a very Radical idle and can be hard to tune it. Rat is right about crane they do make some good cams. Also the 292h needs slot of compression to run it. It has a very big lobe seperation so you need at least 10 to 1 compression comp says 9.5 to 1 but I would suggest higher. Good luck on your build chose a cam wisely cause to big a cam can realy make your engine run bad just as to small a cam will not give you all the performance. Also your heads and intake are important too. If their not flowing good the performance cam won't do you any good.
Post Fiend
Joined: Feb 2001
Posts: 6,624
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From: Missouri
Stock stall would work well with the 901 or 941. The performer cam is lazy and I don't find it to be the right choice for any application.
Polcat, the 292H has a 110 LCA doesn't it? That isn't very big. It is bigger than the RPM though.
Polcat, the 292H has a 110 LCA doesn't it? That isn't very big. It is bigger than the RPM though.
Elder User
Joined: Jun 2001
Posts: 508
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From: Corpus Christi, Texas
Ok remind me what LCA is?? I forget these terms sometimes. But the Lobe seperation is 110 the Intake center line is 106, but this cam has 72 degree lobe overlap so it will drop your piston bore pressure alot probably why you need so much compression. I think it is more duration than the RPM cam but I know the lift is less. cause that was a nother cam that I considered at one time
Post Fiend
Joined: Jan 2003
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From: Iowa
According to DD2k, the Edel RPM cam makes much less low end torque and about the same hp as compared to the 941. That's why I dont like it. If I can get the same hp up high with more low end torque, why not?
Polcat, you took the words out of my mouth. Your heads only support a certain size of cam. After that, you lose torque for no hp gain.
According to DD2k, the Comp 292h cam #33-240-4 makes 7 more hp than the Crane 941, and 23 ft-lbs less than the 941. This is on a built up 390 like the one I'm going to be building shortly.
You cant tell I'm strongly pushing for the 941 can you?
OBTW, the Crane 801 kills it on torque with the same hp.
Polcat, you took the words out of my mouth. Your heads only support a certain size of cam. After that, you lose torque for no hp gain.
According to DD2k, the Comp 292h cam #33-240-4 makes 7 more hp than the Crane 941, and 23 ft-lbs less than the 941. This is on a built up 390 like the one I'm going to be building shortly.
You cant tell I'm strongly pushing for the 941 can you?
OBTW, the Crane 801 kills it on torque with the same hp.