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Re: Thinking of changing my cam?
[Re: Thumperdart]
#1532858
11/14/13 01:42 PM
11/14/13 01:42 PM
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Joined: Feb 2008
Posts: 128
West Michigan
76318dart
OP
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OP
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Joined: Feb 2008
Posts: 128
West Michigan
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Not the 590mp cam. I wanna go solid roller with a split duration.
76 dart 318 runs 12.9o @ 103 mph with 1.78 60ft.
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Re: Thinking of changing my cam?
[Re: Thumperdart]
#1532859
11/14/13 01:43 PM
11/14/13 01:43 PM
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Joined: Sep 2013
Posts: 168
Moparts
SSDart
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Joined: Sep 2013
Posts: 168
Moparts
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Quote:
Quote:
I think the max flow for lift was around 600 lift.I think I'm gonna go with a victor and around 590 lift solid with my heads ported. Should wake the car up.
NOW we`re talkin.............and don`t listen to the "It`ll be a dog down low" crap.............not true at all w/your vert and gears...........did it years ago w/smogger unported heads on a 360. Peace! 
Thumper..... your saying to replace a hyd roller with a ft solid?????? Funny guy......... I'm not buying it........
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Re: Thinking of changing my cam?
[Re: SSDart]
#1532861
11/14/13 01:49 PM
11/14/13 01:49 PM
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Joined: Feb 2008
Posts: 128
West Michigan
76318dart
OP
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OP
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Joined: Feb 2008
Posts: 128
West Michigan
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Yeah I wanna stay with a roller for sure. Won't go back to flat tappet.
76 dart 318 runs 12.9o @ 103 mph with 1.78 60ft.
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Re: Thinking of changing my cam?
[Re: 76318dart]
#1532864
11/14/13 02:28 PM
11/14/13 02:28 PM
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Joined: Sep 2013
Posts: 168
Moparts
SSDart
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Quote:
Well I shouldn't say I wouldn't go back to a flat tappet. I'm running one in my othermotor for 7 years no with out problems. I just like rollers
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Re: Thinking of changing my cam?
[Re: CLEVO351]
#1532866
11/15/13 11:23 AM
11/15/13 11:23 AM
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Joined: Feb 2008
Posts: 128
West Michigan
76318dart
OP
member
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OP
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Joined: Feb 2008
Posts: 128
West Michigan
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I'll look when I get home from work. I know they are comp beehive springs.
76 dart 318 runs 12.9o @ 103 mph with 1.78 60ft.
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Re: Thinking of changing my cam?
[Re: CLEVO351]
#1532867
11/15/13 11:26 AM
11/15/13 11:26 AM
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Joined: Aug 2006
Posts: 2,141
junction city oregon
viperblue72
top fuel
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top fuel
Joined: Aug 2006
Posts: 2,141
junction city oregon
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Head porting will help it pick up a bunch. Probably 3 tenths. A solid roller will help too. It will have steeper ramps than a hyd. roller. If you make that change, I would go with something around [Email]255@050[/Email] with your setup. It will have about the same adv. total duration as your hyd. roller, but more duration at @050. A bunch more bang for buck will be in head porting though. I would do that first. I ran the cam you mention in a 408 10.7 to 1 all steel duster 3k stall and 4.10's. Went 11.24 with mild edelbrocks at 119mph. Went 11.0@122 with indybrocks only made 2 passes. and my best 60ft was 1.65. Had great street manners though and 13 in vacuum at idle. Tons of midrange too. Next owner put in a 256@050 solid roller in the same motor and supposedly went 126 mph.
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Re: Thinking of changing my cam?
[Re: 76318dart]
#1532868
11/15/13 06:54 PM
11/15/13 06:54 PM
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Joined: Jan 2005
Posts: 3,635
Oakland, MI
dizuster
master
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master
Joined: Jan 2005
Posts: 3,635
Oakland, MI
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As mentioned, because the hydraulic roller doesn't have lash, it will act bigger (8~10 degree's) then a solid. I wouldn't swap a [Email]246@.050"[/Email] hydraulic, to a [Email]256@.050"[/Email] solid roller (which will act like a 246~248@.050"). Also, you already have .570 lift, so putting a .590" lift solid in it (and then taking .020" back out for lash), will get you right back to .570 anyway. Porting the heads with a single plane intake will wake it up a ton. BTW... read this. http://www.stangtv.com/tech-stories/engine/dyno-shootout-solid-roller-vs-hydraulic-roller/
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Re: Thinking of changing my cam?
[Re: dizuster]
#1532869
11/16/13 02:49 AM
11/16/13 02:49 AM
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Joined: Aug 2006
Posts: 2,141
junction city oregon
viperblue72
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junction city oregon
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I respectfully disagree. A 256@050 solid roller is NOT going to act like his 246@050 hydraulic roller. A 246 solid roller will peak at about the same as a 246 hyd roller, as your article proves. Also a 246@050 hyd roller is going to have about 298 total duration, where as a solid roller will have about 284, and still make more power and peak at the same rpm. They are a more aggressive lobe. On top of that, it will have better idle vacuum. Yes, a 256@050 solid roller with as much lift as you want to tolerate, probably around .600 after lash if you will, is going to make a lot more power than his hydraulic stick. As for rather it's the best bang for buck is a different story. Porting is going to get the biggest gain. I just don't think it will get him into the 10's necessarily.
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Re: Thinking of changing my cam?
[Re: viperblue72]
#1532870
11/16/13 08:02 AM
11/16/13 08:02 AM
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Joined: Sep 2013
Posts: 168
Moparts
SSDart
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Joined: Sep 2013
Posts: 168
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Quote:
I respectfully disagree.
A [Email]256@050[/Email] solid roller is NOT going to act like his [Email]246@050[/Email] hydraulic roller. A 246 solid roller will peak at about the same as a 246 hyd roller, as your article proves.
Also a [Email]246@050[/Email] hyd roller is going to have about 298 total duration, where as a solid roller will have about 284, and still make more power and peak at the same rpm. They are a more aggressive lobe. On top of that, it will have better idle vacuum.
Yes, a [Email]256@050[/Email] solid roller with as much lift as you want to tolerate, probably around .600 after lash if you will, is going to make a lot more power than his hydraulic stick.
As for rather it's the best bang for buck is a different story. Porting is going to get the biggest gain. I just don't think it will get him into the 10's necessarily.
You guys are picking fly $hit out of pepper......... Anyone who has played with these engines knows they are very forgiving on camshafts....... it's difficult to pick the wrong one...... The OP's original cam will put him into the tens with ease.........
Now the head porting and intake you can screw up on......... 
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Re: Thinking of changing my cam?
[Re: SSDart]
#1532871
11/16/13 10:33 AM
11/16/13 10:33 AM
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Joined: Aug 2006
Posts: 2,141
junction city oregon
viperblue72
top fuel
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top fuel
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Posts: 2,141
junction city oregon
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Quote:
Quote:
I respectfully disagree.
A [Email]256@050[/Email] solid roller is NOT going to act like his [Email]246@050[/Email] hydraulic roller. A 246 solid roller will peak at about the same as a 246 hyd roller, as your article proves.
Also a [Email]246@050[/Email] hyd roller is going to have about 298 total duration, where as a solid roller will have about 284, and still make more power and peak at the same rpm. They are a more aggressive lobe. On top of that, it will have better idle vacuum.
Yes, a [Email]256@050[/Email] solid roller with as much lift as you want to tolerate, probably around .600 after lash if you will, is going to make a lot more power than his hydraulic stick.
As for rather it's the best bang for buck is a different story. Porting is going to get the biggest gain. I just don't think it will get him into the 10's necessarily.
You guys are picking fly $hit out of pepper......... Anyone who has played with these engines knows they are very forgiving on camshafts....... it's difficult to pick the wrong one...... The OP's original cam will put him into the tens with ease.........
Now the head porting and intake you can screw up on.........
I do agree that with head porting alone he will reach his goals. But he does want camshaft advice. And just telling him one size fits all isn't very informative. 
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Re: Thinking of changing my cam?
[Re: viperblue72]
#1532875
11/16/13 03:14 PM
11/16/13 03:14 PM
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Joined: Sep 2013
Posts: 168
Moparts
SSDart
member
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member
Joined: Sep 2013
Posts: 168
Moparts
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Quote:
Quote:
Quote:
I respectfully disagree.
A [Email]256@050[/Email] solid roller is NOT going to act like his [Email]246@050[/Email] hydraulic roller. A 246 solid roller will peak at about the same as a 246 hyd roller, as your article proves.
Also a [Email]246@050[/Email] hyd roller is going to have about 298 total duration, where as a solid roller will have about 284, and still make more power and peak at the same rpm. They are a more aggressive lobe. On top of that, it will have better idle vacuum.
Yes, a [Email]256@050[/Email] solid roller with as much lift as you want to tolerate, probably around .600 after lash if you will, is going to make a lot more power than his hydraulic stick.
As for rather it's the best bang for buck is a different story. Porting is going to get the biggest gain. I just don't think it will get him into the 10's necessarily.
You guys are picking fly $hit out of pepper......... Anyone who has played with these engines knows they are very forgiving on camshafts....... it's difficult to pick the wrong one...... The OP's original cam will put him into the tens with ease.........
Now the head porting and intake you can screw up on.........
I do agree that with head porting alone he will reach his goals. But he does want camshaft advice. And just telling him one size fits all isn't very informative.
I'm not saying one size fits all...... I'm saying the differences in this discussion will little notable effect.
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