what makes a mild cam not a mild?? - Chevelle Tech
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post #1 of 26 (permalink) Old Jan 27th, 11, 2:26 PM Thread Starter
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Anhtuan Le
 
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what makes a mild cam not a mild??

so just reading and thinking... alot of guys mention they have a mild cam and such. i was wondering is there a range that makes a cam a mild cam vs. a radical cam?

so my cam is, is it a mild or something else?

  • Advertised Duration (Int/Exh): 267/273
  • Duration @ .050 (Int/Exh): 237/243
  • Gross Valve Lift (Int/Exh): .639/.655
  • LSA/ICL: 110/106
  • Valve Lash (Int/Exh): .018/.018
  • RPM Range: 2500-6600
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post #2 of 26 (permalink) Old Jan 27th, 11, 2:42 PM
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Vinny Vince
 
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Re: what makes a mild cam not a mild??

Perception

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post #3 of 26 (permalink) Old Jan 27th, 11, 3:06 PM
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Dan
 
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Re: what makes a mild cam not a mild??

Quote:
Originally Posted by atle View Post
so just reading and thinking... alot of guys mention they have a mild cam and such. i was wondering is there a range that makes a cam a mild cam vs. a radical cam?

so my cam is, is it a mild or something else?

  • Advertised Duration (Int/Exh): 267/273
  • Duration @ .050 (Int/Exh): 237/243
  • Gross Valve Lift (Int/Exh): .639/.655
  • LSA/ICL: 110/106
  • Valve Lash (Int/Exh): .018/.018
  • RPM Range: 2500-6600
IMO,by looking @ your cam specs I'd say your on the mild/wild border line.
Alot has to do with the rest of the engine combo....what is WILD in a 'race only' 396 will be a kitten in a 572.

& as Vince said....personal perception.

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post #4 of 26 (permalink) Old Jan 27th, 11, 3:11 PM
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Re: what makes a mild cam not a mild??

Thats a good street cam. To me mild is when it can support power brakes and can still idle below 1000. I bought a 231/239 @.050 .535/.550 hydro roller for my 350, because it has power brakes. I expect this cam to work just fine. Now my Chevelle has a 275/287 @.050, .788/.765 and idles at 1600.

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post #5 of 26 (permalink) Old Jan 27th, 11, 3:19 PM
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Dave
 
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Re: what makes a mild cam not a mild??

For a solid (roller?) cam in a big block, I'd call that moderate on it's way toward radical...depending on how it sounds at idle.

Like Vince said, it's perception... and I'll add "opinion."

To me, a "mild" cam is bigger than stock but still works with a stock torque converter and a "radical" cam has a really wicked idle at 1000 rpms.
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post #6 of 26 (permalink) Old Jan 27th, 11, 3:35 PM Thread Starter
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Anhtuan Le
 
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Re: what makes a mild cam not a mild??

thanks guys, it sounds pretty aggressive at idle and idles at 900 very nicely. i've heard some very wicked cars with smaller cam specs than mine, so just curious.
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post #7 of 26 (permalink) Old Jan 27th, 11, 3:58 PM
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Re: what makes a mild cam not a mild??

Quote:
Originally Posted by atle View Post

so just reading and thinking... alot of guys mention they have a mild cam and such.


i was wondering is there a range that makes a cam a mild cam

Once upon a time, cams came as stock, street, 3/4 race,and full race, meaning:

---no improvement over stock,

---better but not killer,

---hot street stick,

---and overkill.


HTH
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post #8 of 26 (permalink) Old Jan 27th, 11, 5:58 PM
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Re: what makes a mild cam not a mild??

Quote:
Originally Posted by Two Lane View Post
Once upon a time, cams came as stock, street, 3/4 race,and full race, meaning:

---no improvement over stock,

---better but not killer,

---hot street stick,

---and overkill.


HTH
Nice.

I'm guessing the "RV cam" is in the same category as the "street" cams, right?
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post #9 of 26 (permalink) Old Jan 27th, 11, 10:26 PM
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Re: what makes a mild cam not a mild??

Quote:
Originally Posted by atle View Post
thanks guys, it sounds pretty aggressive at idle and idles at 900 very nicely. i've heard some very wicked cars with smaller cam specs than mine, so just curious.
====================

You can have 2 cams with same approx dur @ .05 ,lift etc but the cam with a 112 LSA will sound milder at idle and lower engine speeds then the other cam with a 108 LSA.

So mix that with maybe a smaller cid motor too and thats why you heard wicked sounding cams that were smaller spec'd then your's.

Scott

SCOTT
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post #10 of 26 (permalink) Old Jan 27th, 11, 10:50 PM Thread Starter
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Re: what makes a mild cam not a mild??

thanks guys, much clearer to me now.
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post #11 of 26 (permalink) Old Jan 28th, 11, 8:56 AM
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Mark
 
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Re: what makes a mild cam not a mild??

Give Mike Lewis @ Wolfplace a call:

A nice cam is race-only.
A mild cam is primarily strip but might see some street action.
A "weenie" cam is suitable for the street but some would consider it on the edge.
I don't think it goes any lower than "weenie" for Mike.

Mark

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post #12 of 26 (permalink) Old Jan 28th, 11, 4:22 PM
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Frank Riley
 
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Re: what makes a mild cam not a mild??

more lift & duration....

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post #13 of 26 (permalink) Old Jan 28th, 11, 5:17 PM
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Re: what makes a mild cam not a mild??

Quote:
Originally Posted by Yellomalibu View Post
Nice.

I'm guessing the "RV cam" is in the same category as the "street" cams, right?


Yup!
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post #14 of 26 (permalink) Old Jan 28th, 11, 5:50 PM
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Re: what makes a mild cam not a mild??

I had a "fellow" member here call a mild 223/231 @.050 cam by Harold "wimpy"
Wimpy in my mind is the 396 L35 or L48 350 cam (about 198-204@.050)
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post #15 of 26 (permalink) Old Jan 28th, 11, 9:51 PM
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Re: what makes a mild cam not a mild??

Quote:
Originally Posted by mr 4 speed View Post
I had a "fellow" member here call a mild 223/231 @.050 cam by Harold "wimpy"
Wimpy in my mind is the 396 L35 or L48 350 cam (about 198-204@.050)
The other thing to consider in how people categorize mild to radical: comparison.
If my cam is bigger than your cam, yours is mild.
If my cam is smaller than your cam, yours is radical.
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