Cam selected... any haters???

[Meet-Joe-"Dart"]

Ok with the advice of my shop, Comp cams, and my local parts store I'm selecting Comp Cams 20-224-4 (other option was 20 228 4, X-treme enrgy, high lift) I think i'll run the 20 224 4 with a 1.6 roller rocker, a 3000 stall torque converter, Eddy magnum heads... my only fear is finding out 6months down the road I under cam'd it. (street car) Any opinions out there? (those heads are expensive... I don't wanna waste their potential) Thx rayer:

(fyi Comp said when in deciding between 2 cam... always go with the SMALLER cam shaft)

 

[Abodybomber]

Man,these cams work.I normally like Crower,all 3 of the xe/hl grinds work very well.Lack of cam timing won't be an issue.

 

[crackedback]

XE274H is a good cam adn will work with the 1.6 rockers. Make sure the heads are set up to run that lift, mag heads are sometimes lift limited.

From your other posts it will work well. Another good cam from comp is the XE275HL.

 

[805moparkid]

Ok with the advice of my shop, Comp cams, and my local parts store I'm selecting Comp Cams 20-224-4 (other option was 20 228 4, X-treme enrgy, high lift) I think i'll run the 20 224 4 with a 1.6 roller rocker, a 3000 stall torque converter, Eddy magnum heads... my only fear is finding out 6months down the road I under cam'd it. (street car) Any opinions out there? (those heads are expensive... I don't wanna waste their potential) Thx rayer:

(fyi Comp said when in deciding between 2 cam... always go with the SMALLER cam shaft)

thats why you dont go with Comp LOL

 

[dodge freak]

comp says to go with the smaller cam so you will want to change it out to a larger cam later on, lol

 

[RustyRatRod]

Comp sucks. They grind chebbie grinds for everything.

 

[moper]

It's a solid choice, and any person that knows about cams, and understands the definition of "street", will always say err on the side of smaller.

Stroker...lol... That's your (and some others) opinion. They don't suck. They just don't put the really fast rate stuff on "shelf part number" cams. The XE line of lobes is directly comparable to Lunati's "Voo Doo" fast rate stuff, albeit Lunati's cams are basically one size larger for a given duration. (so the XE268 compares very closely to Lunati's 60402; the XE274 compares to the 60403; etc) The HL line of cams uses faster lobes than Lunati's, and they are very similar to Hughes "Mopar only" stuff. And Comp does have lobes that are much faster than that available for custom grinds. It's all relative to what you know, and how you use the info. I routinely use Ford lifter-sized fast rate lobes on my custom cams. They take a bit less spring and make the power I want.

 

[rumblefish360]

Moper, thanks for hitting the nail on the head and saving my fingers from a lengthy explanation.

In addition, if you really want a cam ground for the Chrysler .904 lifter only, just ask for it! It is not a "Must" to take advantage of the larger lifter to make power. It's just nice that you can. Street engines will be really hard pressed to show a difference in cam.

When you really step up to the plate of HP making, then you'll know. So far, very few on this board even come close to getting outta the crib on power making.

 

[MRL Performance]

Voodoo 60404. I have built many engines with the XE HL and the Voodoo's and the Voodoo always have made more torque everywhere in the power band. Torque is KING on the street.

 

[dodge freak]

but you can gear for torgue

on the street it just needs to idle clean for long amounts of time, now mpg is another story, many might say no biggie but then they can't afford to drive that 8 mpg car across town everyday and it just sits looking all pretty

 

[moper]

No doubt, those Lunatis make good, usable power. I was also impressed with the idle vacuum from the Voo Doo and I like the taller lift. But they are not normally my first choice.

 

[RustyRatRod]

Fast rate of lift has nothing to do with what I'm talking about. NONE of the off the shelf Comp grinds take advantage of the .904 lifter diameter. Not one. The only ones that come close are those high lift jobs. Other than that, the lobes are chebbie lobes. They grind everything the same. 110 LSA and all the duration figures are the same. You have to pay to get something different. Comp SUCKS and that's my opinion and I'm sticking to it. The only reason they are so popular is because they are one of the only cam manufacturers that have survived.

It's a solid choice, and any person that knows about cams, and understands the definition of "street", will always say err on the side of smaller.

Stroker...lol... That's your (and some others) opinion. They don't suck. They just don't put the really fast rate stuff on "shelf part number" cams. The XE line of lobes is directly comparable to Lunati's "Voo Doo" fast rate stuff, albeit Lunati's cams are basically one size larger for a given duration. (so the XE268 compares very closely to Lunati's 60402; the XE274 compares to the 60403; etc) The HL line of cams uses faster lobes than Lunati's, and they are very similar to Hughes "Mopar only" stuff. And Comp does have lobes that are much faster than that available for custom grinds. It's all relative to what you know, and how you use the info. I routinely use Ford lifter-sized fast rate lobes on my custom cams. They take a bit less spring and make the power I want.

 

[MoparAnglia]

Fast rate of lift has nothing to do with what I'm talking about. NONE of the off the shelf Comp grinds take advantage of the .904 lifter diameter. Not one. The only ones that come close are those high lift jobs. Other than that, the lobes are chebbie lobes. They grind everything the same. 110 LSA and all the duration figures are the same. You have to pay to get something different. Comp SUCKS and that's my opinion and I'm sticking to it. The only reason they are so popular is because they are one of the only cam manufacturers that have survived.

Fast rate of lift has nothing to do with what you're talking about? Really? What other advantage do you think the .904 lifters allow?

Gotta laugh though, Comp finally did something with a different LSA (Thumpr) and everybody bitched about those too...

 

[65CudaFish]

Fast rate of lift has nothing to do with what you're talking about? Really? What other advantage do you think the .904 lifters allow?

Gotta laugh though, Comp finally did something with a different LSA (Thumpr) and everybody bitched about those too...

I ran a Comp in a 1973 318 rebuild and it did fairly well. I ran it with stock exhaust manifolds, with straight flow design mufflers out the back. A 625 Comp Carb, 1900 to 2100 stall in a lower 2nd gear 904LA. I hammered that engine for 5 years straight on the street and sold the engine still running strong. It was the 270H the smallest Magnum Cam. I even ran stock valves and ports. No problems!:burnout:

 

[65CudaFish]

I ran a Comp in a 1973 318 rebuild and it did fairly well. I ran it with stock exhaust manifolds, with straight flow design mufflers out the back. A 625 Comp Carb, 1900 to 2100 stall in a lower 2nd gear 904LA. I hammered that engine for 5 years straight on the street and sold the engine still running strong. It was the 270H the smallest Magnum Cam. I even ran stock valves and ports. No problems!:burnout:

Someone asked me if it was a 383 under the hood once, ha:sign7:

 

[moper]

Fast rate of lift has nothing to do with what I'm talking about. NONE of the off the shelf Comp grinds take advantage of the .904 lifter diameter. Not one. The only ones that come close are those high lift jobs. Other than that, the lobes are chebbie lobes. They grind everything the same. 110 LSA and all the duration figures are the same. You have to pay to get something different. Comp SUCKS and that's my opinion and I'm sticking to it. The only reason they are so popular is because they are one of the only cam manufacturers that have survived.

So... What are you talking about then? What do you believe the advantage of the .904 lifter is?

You should try looking at the lobe catalog vs the "shelf" grind camshaft catalog. There are so many it is an entirely seperate catalog. If you can't understand the true nature of a lobe design, you are missing a lot. The reason they survived probably has something to do with having good product...

 

[rumblefish360]

So... What are you talking about then? What do you believe the advantage of the .904 lifter is?

He has totally missed it.

You should try looking at the lobe catalog vs the "shelf" grind camshaft catalog. There are so many it is an entirely seperate catalog. If you can't understand the true nature of a lobe design, you are missing a lot. The reason they survived probably has something to do with having good product...

I love the HEMI only section.

 

[68383GTS]

I used Hughes cams until I had 3 in a row go flat.I have used Comp Cams since the mid 90's and I have had great luck with them.

Jim

 

[RustyRatRod]

No, yall have totally missed it. I said clearly it is my OPINION. Plain and simple. "I" am not crazy about Comp. Like it, don't like it, stuff it, do what you want with it. It's MY opinion.

 

[moper]

Sorry Stroker. I didn't catch your drift there. I have the same feelings about some other manufacturers (Accel and Bosch come right to mind for me...). So I can understand...lol.

 

[73SwingerBuild]

Not to highjack the thread, or digress, but why don't I hear too many people discussing Crane Cams here? I ran one in a mild 318 (stock bottom end) in my 74 Valiant and it pulled like a champ. I had great experience with them in terms of having a streetable cam with good performance.

 

[goldmember]

I am another that's not a fan of Comp cams,but they DO have some good lobes and do have .904 lobes if you think you need them. The voodoo lobes(for mopars) are .904 lobes and will not work with smaller diameter lifters. It's true that Lunati gave Harold instruction to make them a little "safer" than the grinds he could fit on a .904 lifter,that means keeping them a few .001" farther from the edge of the lifter. Having talked to Harold many times over the years,his feeling was that the hyd lifters ability to handle lobes he could design was the main concern,others don't care so much if a lobe is noisey or they won't turn rpms without pulling out your hair and trying every trick a Nascar team would apply to make things happy. If I want an "aggressive"lobe I'll run a solid,if I must use a Hyd I won't try to make it do things over it's level of competence. For 95% my cams I use Bullet racing cams and if you'll call Tim and give him your combo he can will sell you what you need,without the BS. Good luck

 

[RustyRatRod]

Sorry Stroker. I didn't catch your drift there. I have the same feelings about some other manufacturers (Accel and Bosch come right to mind for me...). So I can understand...lol.

No sweat dood.

 

[64physhy]

If your engine is a stroker (you didn't say in the OP and I haven't seen your other threads) go with the bigger cam. A few extra degrees of duration will make the stroker "behave" similar to a non-stroker with the next smaller size cam.

 

[rumblefish360]

Not to highjack the thread, or digress, but why don't I hear too many people discussing Crane Cams here? I ran one in a mild 318 (stock bottom end) in my 74 Valiant and it pulled like a champ. I had great experience with them in terms of having a streetable cam with good performance.

You can make excellent power with Crane cams. They do grind there cams with what is called the "Chevy" lobe and there centerlines are mostly a 112 or larger, which is OK fine for a 318 or smaller engine and mild to semi aggressive builds. The lower 110, which is common place, is fine for 340/360 engines of the same style build as described above.

Moving the number down 2, AKA 112 to 110 or 110 to 108 helps move aggressively designed / intended engines. Another 2* for race rides or very aggressive street machines and so on down to about 100 , which is about as far as you go.


I have noticed Crane Cams will have in there catalogs some real nice street grinds that are more in line with what is normally seen as well as race only cams that are also nice.