big block 590 purple shaft cam spec?
#887528
12/24/10 08:36 PM
12/24/10 08:36 PM
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Joined: Mar 2007
Posts: 501 ONTARIO,CANADA
604 Hemi GTX
OP
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OP
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Posts: 501
ONTARIO,CANADA
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Does anyone have a cam card on a 590 purple shaft. I just bought one from my local dealership and it didn't come with a cam card. I need the spec to dial the cam in. Thanks for any and all info Kevin
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Re: big block 590 purple shaft cam spec?
[Re: Sport440]
#887535
12/24/10 11:16 PM
12/24/10 11:16 PM
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Joined: Mar 2008
Posts: 5,746 Ontario, Canada
Dodgem
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master
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Quote:
Quote:
supposed to be 265/265 @ .050 the rest is above.
But its not! Its duration is actually 271/272 @ .050 thereabouts,
Reguardless, 265 or 272 install it at between 98* to 102 ICL for best performance in most apps. mike
we had my friends in at 104 and I talked him into 100 and it was snappier at 100
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Re: big block 590 purple shaft cam spec?
[Re: Dunnuck Racing]
#887537
12/25/10 01:10 AM
12/25/10 01:10 AM
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Joined: Jan 2003
Posts: 3,831 N.E. Ohio
6bblFLASH
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Some of those spec.s are quite a bit different than what I remember WOW ' I too have run and am running the .590. Lots of people say "theres better cams" I`ve just never found one. Is that really a 114c/l on the 484hyd? I`m putting a blower on my 383 and was looking for a cam with 112--114 lobe centers ,but it already has a 484 which IS a 114????? I thought the 484 was 110 c/l?
Last edited by 6bblFLASH; 12/25/10 01:12 AM.
70` Cuda`,440 6BBL Jerico,Dana 4.56 Still on 93 Pump Gas 9.87 @ 136/1.31-60ft.`09 Mopar Nationals PASSON PERFORMANCE "Stick-Shift" Champ! 2013 StickShift Challenge Winner@ Mopar Nationals!
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Re: big block 590 purple shaft cam spec?
[Re: mike s]
#887540
12/25/10 05:06 AM
12/25/10 05:06 AM
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Joined: Jan 2003
Posts: 9,826 las vegas
70AARcuda
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master
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there are two versions of the 484/509 cam for BB...108 and 114 center line
SB only shows the 484 cam with both Center lines available..
but my catalog is a couple years old
Tony
70 AARCuda Vitamin C 71 Dart Swinger 360 10.318 @ 128.22(10-04-14 Bakersfield) 71 Demon 360 10.666 @122.41 (01-29-17 @ Las Vegas) 71 Duster 408 (10.29 @ 127.86 3/16/19 Las Vegas)
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Re: big block 590 purple shaft cam spec?
[Re: 572charger]
#887542
12/25/10 01:08 PM
12/25/10 01:08 PM
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Joined: Mar 2008
Posts: 553 Kentucky
clovis
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Here is the card that I got from the Tech line guys. As everyone has said and the new paperwork details the duration at .050 is actually 271. This just gives you the opening and closing points.
312° Mechanical: P4120663 Duration Intake Nominal 312° Duration Exhaust Nominal 312° Duration Intake @ .050” 265° Duration Exhaust @ .050” 265° Intake Lobe Centerline 104° ATDC Exhaust Lobe Centerline 108° BTDC Lobe Separation Angle 106° Overlap 100° Intake Opens 52° BTDC Exhaust Opens 84° BBDC Intake Closes 80° ABDC Exhaust Closes 48° ATDC Intake Lift .590” Exhaust Lift .590” Note: as installed on 104° centerline per Chrysler
'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: big block 590 purple shaft cam spec?
[Re: clovis]
#887543
12/25/10 01:26 PM
12/25/10 01:26 PM
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Joined: Jul 2006
Posts: 4,595 On the south side of Nowhere
S/ST 3040
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I've posted this before but, this is what I've found on the MP/DC Purple SOLID cams: Their advertised durations use timing events @ .015" I typically find, duration @ .020" is 8º less. i.e. 312/590 cam is 304º @ .020" Duration @ .050" is 32º less than duration @ .020" So the 312/590 cam looks like this: 304º @ .020" 272º @ .050" I hope that helps.
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Re: big block 590 purple shaft cam spec?
[Re: 604 Hemi GTX]
#887544
12/25/10 04:01 PM
12/25/10 04:01 PM
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Joined: Sep 2006
Posts: 685 SW Ohio
AAR-B4
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Quote:
What do you guys recommend for valve springs?
Comp 928 or K-Motion 850. My choices.
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Re: big block 590 purple shaft cam spec?
[Re: 604 Hemi GTX]
#887546
12/25/10 05:59 PM
12/25/10 05:59 PM
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Joined: Jan 2003
Posts: 16,925 NC
440Jim
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In addition to the actual duration at 0.050", this is what Dwayne Porter measured on one a few years ago. MP .590 cam, actual measurements- DUR. @ .020=303.5 .050=270.5 .100=235.0 .150=205.0 .200=177.0 .250=148.5 .300=117.0 .350=76.0 lobe lift@TDC @105 ICL=.140 LSA 106
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Re: big block 590 purple shaft cam spec?
[Re: shoebox]
#887547
12/25/10 06:01 PM
12/25/10 06:01 PM
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Joined: Jan 2003
Posts: 16,925 NC
440Jim
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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.
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