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Re: mopar 590 cam.; what CR do i need to go with it?
[Re: S/ST 3040]
#889833
12/28/10 12:26 AM
12/28/10 12:26 AM
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Joined: Feb 2006
Posts: 784
Liverpool, NY
SILVER67
super stock
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super stock
Joined: Feb 2006
Posts: 784
Liverpool, NY
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Quote:
I know of a few iron head 440s that have run high 10 to low 11s
with the 312/590 and roughly 10:1
I'm sure they had 8" converters but, no idea on the stall speed.
B and E bodies too.
How much rear gear?
Michael
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Re: mopar 590 cam.; what CR do i need to go with it?
[Re: SILVER67]
#889834
12/28/10 12:40 AM
12/28/10 12:40 AM
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Joined: Jul 2006
Posts: 4,595
On the south side of Nowhere
S/ST 3040
master
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master
Joined: Jul 2006
Posts: 4,595
On the south side of Nowhere
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Quote:
Quote:
I know of a few iron head 440s that have run high 10 to low 11s
with the 312/590 and roughly 10:1
I'm sure they had 8" converters but, no idea on the stall speed.
B and E bodies too.
How much rear gear?
Michael
IIRC, the 69 Charger was 30" tire and 4.56
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Re: mopar 590 cam.; what CR do i need to go with it?
[Re: SILVER67]
#889836
12/28/10 12:59 AM
12/28/10 12:59 AM
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Joined: Feb 2004
Posts: 622
ct
jkgtx
mopar
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mopar
Joined: Feb 2004
Posts: 622
ct
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ran one in my car years ago 440 11-1 trws
11.66-11.80s 3850 race weight 1.65-66 60fts
[b] [color:"red"] 67 GTX 440 twin turbo efi 10.72 128 3900lb 3.55
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Re: mopar 590 cam.; what CR do i need to go with it?
[Re: jkgtx]
#889837
12/28/10 01:10 AM
12/28/10 01:10 AM
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Joined: Mar 2008
Posts: 553
Kentucky
clovis
mopar
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mopar
Joined: Mar 2008
Posts: 553
Kentucky
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I have a 10.5:1 906 headed 451 (400) that went 10.75 at 3300lbs with the 590.  With more converter(4200) 10.60's were well within reach.
'75 Plymouth Duster
Phase I 451 906/590/2-660 10.75/126
Phase II 451 Stage VI/590/1050 9.82/135
Phase III 383 906/Victor-Pump gas 11.30/119
"For by grace you have been saved through faith. And this is not your own doing; it is the gift of God,"
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Re: mopar 590 cam.; what CR do i need to go with it?
[Re: shoebox]
#889839
12/28/10 02:36 AM
12/28/10 02:36 AM
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Joined: Nov 2003
Posts: 6,293
Rock Springs
Bob_Coomer
master
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master
Joined: Nov 2003
Posts: 6,293
Rock Springs
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Its going to be a pig with that cam. Sure it will run, and probably run decent. But a smaller cam will run and idle much better. That cam was ment for a all out race application. 5K+ converter, race weight car, 12-13:1 compression, and spin the engine 6300+
With a engine and compression near 10:1 you would like the 557 MP cam much better.
[color:"red"]65 Hemi Belvedere coming soon [/color]
[color:"#00FF00"]557" Indy engine 1.07 60ft 144mph in the 8th 2100 lbs package [/color]
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Re: mopar 590 cam.; what CR do i need to go with it?
[Re: Bob_Coomer]
#889840
12/28/10 03:11 AM
12/28/10 03:11 AM
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Joined: Mar 2008
Posts: 553
Kentucky
clovis
mopar
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mopar
Joined: Mar 2008
Posts: 553
Kentucky
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I ran a 10.84 with a Comp 529/543 250/256 108 lsa, with the exact same set-up I ran the 10.75 with the 590. So to Bob's point, it will run quicker & faster but you will have to spin it to do it. I could run 10.80's shifting at 5800 with the old cam, but I had to spin 6600 to get the 10.75. So if you decide to go the 590 route be sure to check your spring pressures, retainers and locks, things like to move around at the higher rpms - dropped valves have a fun rating of -8.  BTW I have my old cam for sale if you are interested.
'75 Plymouth Duster
Phase I 451 906/590/2-660 10.75/126
Phase II 451 Stage VI/590/1050 9.82/135
Phase III 383 906/Victor-Pump gas 11.30/119
"For by grace you have been saved through faith. And this is not your own doing; it is the gift of God,"
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Re: mopar 590 cam.; what CR do i need to go with it?
[Re: gregsdart]
#889844
12/28/10 11:01 AM
12/28/10 11:01 AM
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Joined: Nov 2005
Posts: 808
mckinney texas
shoebox
OP
super stock
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OP
super stock
Joined: Nov 2005
Posts: 808
mckinney texas
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Quote:
Quote:
I have a 10.5:1 906 headed 451 (400) that went 10.75 at 3300lbs with the 590. With more converter(4200) 10.60's were well within reach.
Two buddys of mine have similar results with the 590, both running low elevens with 440 cube motors originally with iron heads, both in 3800 pound cars. Both of these motors had poor quench and 10.5 compression.
Mopar did drag strip tests on all of their cams in the eightys, starting with the smallest cam ,a mp hemi grind and ending with the 590. All testing was done with the same car, a 400 bb motor in a duster. The car picked up over a tenth plus at each cam change with the 590 being the fastest. And that was with a 400 cube low compression motor. For my $$ I would run the 590 and degree it in as early as it likes. I might also try a smaller carb like an 850.
where could i find that article? id love to read that one!
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Re: mopar 590 cam.; what CR do i need to go with it?
[Re: Bob_Coomer]
#889848
12/28/10 12:53 PM
12/28/10 12:53 PM
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Joined: Jul 2006
Posts: 4,319
Puyallup, WA
StealthWedge67
master
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master
Joined: Jul 2006
Posts: 4,319
Puyallup, WA
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Quote:
Its going to be a pig with that cam. Sure it will run, and probably run decent. But a smaller cam will run and idle much better. That cam was ment for a all out race application. 5K+ converter, race weight car, 12-13:1 compression, and spin the engine 6300+
With a engine and compression near 10:1 you would like the 557 MP cam much better.
I run an Engle cam real similar to the Ultradyne you're describing in my 451 (assuming 251* @ .050 / .578 lift on 108 cl). My motor is a zero-deck, .044 quench build @ 10.3:1 w/ Stealths and a 35k converter. I feel I have plenty of cam, to the point where I have other areas that need to catch up to the potential of the cam. I don't think you'll be any faster with the .590, but I do think it will be much more difficult to tune & deal with. I think the UD 251 would be MUCH more snappy / crisp down low, and won't give away anything up top, as @ 10:1, you don't have enough compression to make use of the extra duration the .590 is offering. (I guess that was the OP question, wasn't it  )
Last edited by GEnsrud; 12/28/10 01:29 PM.
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Re: mopar 590 cam.; what CR do i need to go with it?
[Re: shoebox]
#889849
12/28/10 12:57 PM
12/28/10 12:57 PM
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Joined: Jan 2003
Posts: 16,923
NC
440Jim
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,923
NC
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Quote:
i think im about 10.0CR now.
Quote:
440 2295s 070 in the hole
260cfm at 600 452s small valves
Gus,
I have a feeling the 0.590" cam might like more compression ratio than you have. What is the combustion chamber size on your set of 452 heads? They vary a lot.
If the heads are 90cc, 3cc valve reliefs?, and 0.070" pistons down the hole,
your actual CR could be as low as mid 8's. Get all that checked before putting a long duration cam in it.
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