Re: 572 cam recommendation
[Re: 301v]
#2537375
08/16/18 09:00 PM
08/16/18 09:00 PM
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Joined: Jan 2003
Posts: 14,506 So. Burlington, Vt.
fast68plymouth
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I Live Here
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So. Burlington, Vt.
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If the OP is really making 350 passes a year, and is having good reliability at the same time....... I’m not sure I’d mess with it looking for a tenth.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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Re: 572 cam recommendation
[Re: fast68plymouth]
#2537442
08/17/18 12:17 AM
08/17/18 12:17 AM
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Joined: Jan 2003
Posts: 10,011 Frostbitefalls MN (Rocky&Bullw...
gregsdart
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[quote=fast68plymouth]As I’m sure Greg can attest......... you can spend a lot of $$$ when you’re where you are to find a tenth
You bet! I could have bought a tunnelram, twin Dominators and a few barrels of q16 for what i spent trying to get the tenth i got! I ended up with an inverted flank cam from Mike Jones with .870 lift, 284 / 296/114 in my 528.
Last edited by gregsdart; 08/17/18 12:38 AM.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: 572 cam recommendation
[Re: 301v]
#2538265
08/18/18 10:17 PM
08/18/18 10:17 PM
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Joined: Aug 2018
Posts: 30 CA
wyrmrider
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member
Joined: Aug 2018
Posts: 30
CA
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If you have not investigate inverse flank roller time to do so http://jonescams.com/drag-race/shorter duration for given profile or more area at the same duration less side thrust so profile can be easier on the parts or more radical your choice Mike Jones is the only one I know of that can make these profiles rpm uses small wheel for finish grinds or Get Rick jones to run his controlled induction software and generate cam profile which can be ground cnc by several different grinders google "Controlled Induction" look around the website and watch the demo https://www.controlledinduction.com/home.html
Last edited by wyrmrider; 08/18/18 10:31 PM.
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Re: 572 cam recommendation
[Re: 301v]
#2574317
11/05/18 12:01 PM
11/05/18 12:01 PM
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Joined: Jan 2003
Posts: 10,011 Frostbitefalls MN (Rocky&Bullw...
gregsdart
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I Live Here
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Frostbitefalls MN (Rocky&Bullw...
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Have you tried tightening the lash? What Pushrod size? Do you have titanium valves? I am not sure of the value of Ti valves at your rpm, but would think it would take a lot of stress out of the combo as you get more radical on valve action and lift.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: 572 cam recommendation
[Re: 301v]
#2574332
11/05/18 12:32 PM
11/05/18 12:32 PM
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Joined: Feb 2005
Posts: 20,186 PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,186
PA.
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Just a little update.. Hadn't got to do much experimenting on the car in the last month or so due to it has been very good and some weekends the driver has even showed up.
But took it to a small $1000 to win bracket race yesterday and changed my 1.5 intake rockers and put on the 1.6 intakes and left the 1.5 exhaust rockers on.
Car picked up .01 in 60 ft, .04 to the 330, and .06 in the 1/8th.
Mph only showed 1 to 1 1/2 mph gain.
So that gives me a little more info on what the cam want's at least on the intake side. Did you monitor weather conditions on both days. Lots of new bests this time of year. The East coast guys live for Fall testing and new bests and climb out like hibernating bears.
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27
Livin and lovin life one day at a time
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Re: 572 cam recommendation
[Re: gregsdart]
#2574339
11/05/18 12:41 PM
11/05/18 12:41 PM
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Joined: Sep 2017
Posts: 41 Kentucky
301v
OP
member
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OP
member
Joined: Sep 2017
Posts: 41
Kentucky
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Have you tried tightening the lash? What Pushrod size? Do you have titanium valves? I am not sure of the value of Ti valves at your rpm, but would think it would take a lot of stress out of the combo as you get more radical on valve action and lift. Haven't messed with lash on these 1.6 rockers. Only ran it yesterday with this combo of rockers. Did run lash the same as the 1.5s.. But didn't want to get to tight cause it is close to the coil bind numbers. I have 3/8ths 120 wall manton pushrods and stainless valves.
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Re: 572 cam recommendation
[Re: pittsburghracer]
#2574343
11/05/18 12:47 PM
11/05/18 12:47 PM
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Joined: Sep 2017
Posts: 41 Kentucky
301v
OP
member
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OP
member
Joined: Sep 2017
Posts: 41
Kentucky
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Just a little update.. Hadn't got to do much experimenting on the car in the last month or so due to it has been very good and some weekends the driver has even showed up.
But took it to a small $1000 to win bracket race yesterday and changed my 1.5 intake rockers and put on the 1.6 intakes and left the 1.5 exhaust rockers on.
Car picked up .01 in 60 ft, .04 to the 330, and .06 in the 1/8th.
Mph only showed 1 to 1 1/2 mph gain.
So that gives me a little more info on what the cam want's at least on the intake side. Did you monitor weather conditions on both days. Lots of new bests this time of year. The East coast guys live for Fall testing and new bests and climb out like hibernating bears. Yea weather was decent but not that great.. 2300 ft and 70 percent humidity .. Same weather in my crew chief pro which is pretty accurate said it was gonna go 4.896 first hit and went 4.837.
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Re: 572 cam recommendation
[Re: JACK1440]
#2574345
11/05/18 12:48 PM
11/05/18 12:48 PM
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Joined: Sep 2017
Posts: 41 Kentucky
301v
OP
member
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OP
member
Joined: Sep 2017
Posts: 41
Kentucky
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I am building almost the same exact motor and should be going to the dyno within the next month. I have a cam that we are going to base line with and then custom grind a cam maybe the end of next season. This is my combo
572" Mitchell Alum block Indy -1's 2.250 / 1.81 valves flowed 400/300 @ .800 & 409/305 @ .900 15.1 comp flat tops single 4 on indy 3x intake cam is .800 / .760 w/ 1.6 rockers (T&D) and 292/300 @ .050 on a 112 centerline
once I get closer to the dyno I'll post flow sheets and cam card and eventually a dyno sheet. I've had quite the long adventure with the block. That would be some good information to have if you don't mind sharing when you dyno it.
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Re: 572 cam recommendation
[Re: 301v]
#2574350
11/05/18 12:58 PM
11/05/18 12:58 PM
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Joined: Sep 2009
Posts: 500 MD
JACK1440
mopar
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mopar
Joined: Sep 2009
Posts: 500
MD
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Re: 572 cam recommendation
[Re: 301v]
#2575000
11/06/18 07:32 PM
11/06/18 07:32 PM
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Joined: Jan 2003
Posts: 14,506 So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,506
So. Burlington, Vt.
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There’s really only one way to know how your car would respond to that cam.
I will say...... it doesn’t look like a “350 run” no parts replacement type cam.
But even that there’s only one way you’d really know.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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