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degreeing cams with advance ground in #1686714
10/17/14 02:36 AM
10/17/14 02:36 AM
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Mt Morris Michigan
mopar dave Online content OP
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I have a cam that has 115* LSA and has 4* advance ground in. i installed it straight up and checked it, i get 115*. recommended centerline is 111*. am i done or do i need to degree it to 111*? thanks

Re: degreeing cams with advance ground in [Re: mopar dave] #1686715
10/17/14 04:20 AM
10/17/14 04:20 AM
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Put it in a 111, never rely on the dots to be correct Degree it where it is suppose to be and be happy


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: degreeing cams with advance ground in [Re: mopar dave] #1686716
10/17/14 10:28 AM
10/17/14 10:28 AM
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Quote:

I have a cam that has 115* LSA and has 4* advance ground in. i installed it straight up and checked it, i get 115*. recommended centerline is 111*. am i done or do i need to degree it to 111*? thanks



I can relate to your confusion,My cam was 112 and long story short I REALLY think mine is going to like the 108 now so what I am saying is think hard on where you want your RPM to be in relation to your ICL.How about some more info?No lack of opinion around here.
I almost forgot.

Last edited by Clanton; 10/17/14 10:30 AM.

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Re: degreeing cams with advance ground in [Re: Clanton] #1686717
10/17/14 12:08 PM
10/17/14 12:08 PM
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Mt Morris Michigan
mopar dave Online content OP
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i'm degreeing a cam for a friend. this is a 489 big block chevy 1000hp deal using a F1 procharger using race gas. its something like a 268/278@50 and over .700 lift on a 115lsa. he was told the cam has 4* advance built in. so now I'm wondering do I put it in straight up at 115* or set it at 111*?

Re: degreeing cams with advance ground in [Re: mopar dave] #1686718
10/17/14 12:17 PM
10/17/14 12:17 PM
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If you installed a 115* LSA cam w/ the timing set indicating it's "straight up" and the ICL is 115*, either (a) the timing set was actually installed 4* retarded or (b) the cam wasn't really ground w/ 4* advance.

If you want it installed 4* advanced, put that ICL on 111*.

Last edited by Drummer 1-3/4; 10/17/14 12:24 PM.
Re: degreeing cams with advance ground in [Re: mopar dave] #1686719
10/17/14 12:24 PM
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111*,keeping my answer simple.

8303156-dialgaugeon.jpg (79 downloads)
Last edited by Clanton; 10/17/14 07:02 PM.

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Re: degreeing cams with advance ground in [Re: Cab_Burge] #1686720
10/17/14 12:43 PM
10/17/14 12:43 PM
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Quote:

Put it in a 111, never rely on the dots to be correct Degree it where it is suppose to be and be happy


The confusion on this always comes in with the "ground in" statement. As cab said, put it in per the cam manufacturers recommendation. Kinda silly to second guess them right off the bat. After you have run the car for a while and you feel you need more power at the bottom or top end, then you can go ahead and make a change.


Fastest 300
Re: degreeing cams with advance ground in [Re: Crizila] #1686721
10/17/14 03:23 PM
10/17/14 03:23 PM
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ok, how do I check it with the open/close specs on the card?

Re: degreeing cams with advance ground in [Re: mopar dave] #1686722
10/17/14 03:30 PM
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Every cam I've degreed in recent years was 4° advanced when installed "on the pin". I've always assumed this was to compensate for chain stretch.


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Re: degreeing cams with advance ground in [Re: mopar dave] #1686723
10/17/14 05:49 PM
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Quote:

ok, how do I check it with the open/close specs on the card?



Google "how to degree a camshaft" and take your pick...

Re: degreeing cams with advance ground in [Re: mopar dave] #1686724
10/17/14 06:46 PM
10/17/14 06:46 PM
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Quote:

ok, how do I check it with the open/close specs on the card?



I assume it is a solid roller so after .050 lift with +lash it should read what the opening point is on the card.

8303572-degwheelon.jpg (48 downloads)
Last edited by Clanton; 10/17/14 06:59 PM.

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Re: degreeing cams with advance ground in [Re: mopar dave] #1686725
10/17/14 07:54 PM
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Read the card specs for the opening and closing specs and use them


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: degreeing cams with advance ground in [Re: Clanton] #1686726
10/17/14 08:02 PM
10/17/14 08:02 PM
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For the life of me i can't understand the reasoning for the cam manufactuers doing this. Just make it straight up. For a stock engine, dot to dot. Race cam degree it in like it should be. Maybe cam guys did this for the person who has no idea how to degree a cam in the first place but knows how to dot to dot. Reminds me of the time a dude brought me a 383 that wouldn't fall out a tree. Checked the cam and found a 8• retarded button on the cam pin and 4• retarded crank keyway. After i fixed it i told him not to touch the engine again, he said why...

Re: degreeing cams with advance ground in [Re: BradH] #1686727
10/17/14 08:10 PM
10/17/14 08:10 PM
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Quote:

Quote:

ok, how do I check it with the open/close specs on the card?



Google "how to degree a camshaft" and take your pick...




Fastest 300
Re: degreeing cams with advance ground in [Re: cudaman1969] #1686728
10/17/14 09:05 PM
10/17/14 09:05 PM
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Quote:

For the life of me i can't understand the reasoning for the cam manufactuers doing this. Just make it straight up. For a stock engine, dot to dot. Race cam degree it in like it should be. Maybe cam guys did this for the person who has no idea how to degree a cam in the first place but knows how to dot to dot. Reminds me of the time a dude brought me a 383 that wouldn't fall out a tree. Checked the cam and found a 8• retarded button on the cam pin and 4• retarded crank keyway. After i fixed it i told him not to touch the engine again, he said why...





Problem is dot 2 dot isn`t always where it should be.........


72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: degreeing cams with advance ground in [Re: mopar dave] #1686729
10/17/14 09:31 PM
10/17/14 09:31 PM
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advanced the dot is to the left and retarded to the right of the crank dot but you must check cam lobes to see how it is ground.


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Re: degreeing cams with advance ground in [Re: Thumperdart] #1686730
10/17/14 09:53 PM
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Quote:

Quote:

For the life of me i can't understand the reasoning for the cam manufactuers doing this. Just make it straight up. For a stock engine, dot to dot. Race cam degree it in like it should be. Maybe cam guys did this for the person who has no idea how to degree a cam in the first place but knows how to dot to dot. Reminds me of the time a dude brought me a 383 that wouldn't fall out a tree. Checked the cam and found a 8• retarded button on the cam pin and 4• retarded crank keyway. After i fixed it i told him not to touch the engine again, he said why...





Problem is dot 2 dot isn`t always where it should be.........



For a 318 2barrel it is or any dead stock engine for that matter

Re: degreeing cams with advance ground in [Re: mopar dave] #1686731
10/17/14 10:01 PM
10/17/14 10:01 PM
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Quote:

I have a cam that has 115* LSA and has 4* advance ground in. i installed it straight up and checked it, i get 115*. recommended centerline is 111*. am i done or do i need to degree it to 111*? thanks




No your not done. Advanced ground in or not, what you measure is where your at. If your measurements are correct, your at a 115 ICL and not the 111 recommended centerline.

Throw any advance ground in out the window. Measure it, as installed and That's where your at.

Edit; Just saw the combo, you may want it in at 115 ICL with the procharger. Any recommended ICL isn't the All gospel. Its Combo related.

Last edited by Sport440; 10/17/14 10:09 PM.
Re: degreeing cams with advance ground in [Re: cudaman1969] #1686732
10/17/14 10:19 PM
10/17/14 10:19 PM
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Quote:

Quote:

Quote:

For the life of me i can't understand the reasoning for the cam manufactuers doing this. Just make it straight up. For a stock engine, dot to dot. Race cam degree it in like it should be. Maybe cam guys did this for the person who has no idea how to degree a cam in the first place but knows how to dot to dot. Reminds me of the time a dude brought me a 383 that wouldn't fall out a tree. Checked the cam and found a 8• retarded button on the cam pin and 4• retarded crank keyway. After i fixed it i told him not to touch the engine again, he said why...





Problem is dot 2 dot isn`t always where it should be.........



For a 318 2barrel it is or any dead stock engine for that matter




Any time you introduce aftermarket parts into the mix, you run the risk of parts not being machined or stamped correctly.

I always degree a cam even if its a stock rebuild!

Dot to dot does not cut it!

Re: degreeing cams with advance ground in [Re: GY3] #1686733
10/17/14 10:43 PM
10/17/14 10:43 PM
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Quote:

Quote:

Quote:

Quote:

For the life of me i can't understand the reasoning for the cam manufactuers doing this. Just make it straight up. For a stock engine, dot to dot. Race cam degree it in like it should be. Maybe cam guys did this for the person who has no idea how to degree a cam in the first place but knows how to dot to dot. Reminds me of the time a dude brought me a 383 that wouldn't fall out a tree. Checked the cam and found a 8• retarded button on the cam pin and 4• retarded crank keyway. After i fixed it i told him not to touch the engine again, he said why...





Problem is dot 2 dot isn`t always where it should be.........



For a 318 2barrel it is or any dead stock engine for that matter




Any time you introduce aftermarket parts into the mix, you run the risk of parts not being machined or stamped correctly.

I always degree a cam even if its a stock rebuild!

Dot to dot does not cut it!




Thank you............as Monte said; Some may actually run well once they stop "ASSuming things are correct.


72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
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