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Thinking of changing my cam? #1532837
11/13/13 12:12 AM 11/13/13 12:12 AM
Joined: Feb 2008
Posts: 128
West Michigan
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76318dart Offline OP
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Okay I posted a month or 2 ago. My combo is:
340
4inch crank
11:1compression
571/571 246/254 hyd roller.
air gap intake
rhs/indy heads soon to be ported
pro systems holley 830
turbo action 4000 stall
8 3/4 410 gears.
Its in a 3200 lb dart.
okay I wanna change to a solid roller. I was looking at a comp 246/254 576/582? I know its not much bigger than my other cam but with my heads ported I think it would work good with out having to change my converter.im just looking for a little more power on the upper end. I would like your opinions on that cam or other one please. Thanks

76 dart 318 runs 12.9o @ 103 mph with 1.78 60ft.
Re: Thinking of changing my cam? [Re: 76318dart] #1532838
11/13/13 12:47 AM 11/13/13 12:47 AM
Joined: Nov 2006
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oklahoma
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forphorty Offline
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oklahoma
That solid roller will be milder than the hyd roller you currently have, due to losing duration and lift from valve lash. Rule of thumb is that a solid should be about 8 degrees larger than a comparable hyd.
Re: Thinking of changing my cam? [Re: forphorty] #1532839
11/13/13 01:15 AM 11/13/13 01:15 AM
Joined: Feb 2008
Posts: 128
West Michigan
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76318dart Offline OP
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Okay thanks. Right now the cam runs out of power after 6200. It runs 11.40s that's with 373 gears. What cam would work good to get it close to the 10s with my heads being ported?

76 dart 318 runs 12.9o @ 103 mph with 1.78 60ft.
Re: Thinking of changing my cam? [Re: 76318dart] #1532840
11/13/13 12:05 PM 11/13/13 12:05 PM
Joined: Oct 2004
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Left Coast
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BobR Offline
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Quote:

Okay thanks. Right now the cam runs out of power after 6200. It runs 11.40s that's with 373 gears. What cam would work good to get it close to the 10s with my heads being ported?



Comp Cams XR292R
Re: Thinking of changing my cam? [Re: BobR] #1532841
11/13/13 12:42 PM 11/13/13 12:42 PM
Joined: Feb 2008
Posts: 128
West Michigan
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76318dart Offline OP
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Can you get that cam for a small block?

76 dart 318 runs 12.9o @ 103 mph with 1.78 60ft.
Re: Thinking of changing my cam? [Re: BobR] #1532842
11/13/13 08:04 PM 11/13/13 08:04 PM
Joined: Feb 2008
Posts: 128
West Michigan
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76318dart Offline OP
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Joined: Feb 2008
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76 dart 318 runs 12.9o @ 103 mph with 1.78 60ft.
Re: Thinking of changing my cam? [Re: 76318dart] #1532843
11/13/13 11:06 PM 11/13/13 11:06 PM
Joined: Jul 2004
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Thumperdart Offline
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Quote:

Okay thanks. Right now the cam runs out of power after 6200. It runs 11.40s that's with 373 gears. What cam would work good to get it close to the 10s with my heads being ported?

Are the heads ported now? If so, what do they flow?

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: Thinking of changing my cam? [Re: 76318dart] #1532844
11/13/13 11:27 PM 11/13/13 11:27 PM
Joined: Apr 2009
Posts: 3,420
Toronto
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mshred Offline
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Quote:

Can you get that cam for a small block?



Did a quick search on their site and didn't see it listed for a small block unless I missed it.
Re: Thinking of changing my cam? [Re: mshred] #1532845
11/13/13 11:43 PM 11/13/13 11:43 PM
Joined: Feb 2008
Posts: 128
West Michigan
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76318dart Offline OP
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I will have them ported in a few months. I was told that they should flow around 295-297cfm @550-600lift.

76 dart 318 runs 12.9o @ 103 mph with 1.78 60ft.
Re: Thinking of changing my cam? [Re: 76318dart] #1532846
11/14/13 12:56 AM 11/14/13 12:56 AM
Joined: Sep 2013
Posts: 168
Moparts
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SSDart Offline
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You could just leave the cam as is....... Porting the heads will help a bunch. When you say air gap intake,are you refering to a dual plane?
Re: Thinking of changing my cam? [Re: SSDart] #1532847
11/14/13 01:17 AM 11/14/13 01:17 AM
Joined: Feb 2008
Posts: 128
West Michigan
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76318dart Offline OP
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Yeah sorry edelbrock air gap dual plane.

76 dart 318 runs 12.9o @ 103 mph with 1.78 60ft.
Re: Thinking of changing my cam? [Re: 76318dart] #1532848
11/14/13 01:27 AM 11/14/13 01:27 AM
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SSDart Offline
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I would try and find a good single plane.........
Re: Thinking of changing my cam? [Re: 76318dart] #1532849
11/14/13 11:59 AM 11/14/13 11:59 AM
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Thumperdart Offline
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Quote:

Yeah sorry edelbrock air gap dual plane.

Not the best choice for the higher rpm`s you are seeking for sure although some will argue. Do you street drive this thing? Did the porter say where the heads would peak at lift wise? Even w/out knowing these things my brave soul would go with something like 590-610 lift w/255-265 dur. @.050 on a 108 lsa installed close to 104-105. Forgot........ditch the intake for a victor or similar open plenum........

Last edited by Thumperdart; 11/14/13 12:02 PM.
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: Thinking of changing my cam? [Re: 76318dart] #1532850
11/14/13 12:33 PM 11/14/13 12:33 PM
Joined: Sep 2013
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SSDart Offline
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Another consideration could be your cam phasing. If your cam is advanced you could try putting it straight up. BTW what is the lsa ?
Re: Thinking of changing my cam? [Re: SSDart] #1532851
11/14/13 12:42 PM 11/14/13 12:42 PM
Joined: Feb 2008
Posts: 128
West Michigan
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76318dart Offline OP
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Its straight up right now. LSA is 111. And I do believe the centerline is 107

76 dart 318 runs 12.9o @ 103 mph with 1.78 60ft.
Re: Thinking of changing my cam? [Re: SSDart] #1532852
11/14/13 12:47 PM 11/14/13 12:47 PM
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Thumperdart Offline
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Quote:

Another consideration could be your cam phasing. If your cam is advanced you could try putting it straight up. BTW what is the lsa ?



Could be a possibility but that`s still a baby camshaft..........

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: Thinking of changing my cam? [Re: 76318dart] #1532853
11/14/13 12:53 PM 11/14/13 12:53 PM
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SSDart Offline
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Quote:

Its straight up right now. LSA is 111. And I do believe the centerline is 107

The head work and intake will wake up that engine..... I really think your good with the cam. Do you have a stock hood? 10'S will not be too difficult........
Re: Thinking of changing my cam? [Re: Thumperdart] #1532854
11/14/13 12:55 PM 11/14/13 12:55 PM
Joined: Feb 2008
Posts: 128
West Michigan
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76318dart Offline OP
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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.

76 dart 318 runs 12.9o @ 103 mph with 1.78 60ft.
Re: Thinking of changing my cam? [Re: SSDart] #1532855
11/14/13 12:56 PM 11/14/13 12:56 PM
Joined: Feb 2008
Posts: 128
West Michigan
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76318dart Offline OP
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I have a 6 pack hood scoop on it

76 dart 318 runs 12.9o @ 103 mph with 1.78 60ft.
Re: Thinking of changing my cam? [Re: 76318dart] #1532856
11/14/13 01:22 PM 11/14/13 01:22 PM
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SSDart Offline
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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.

590 mp solid cam?
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