big block 590 purple shaft cam spec? - Moparts Forums

Register Log In Moparts Forums Unlawfl's Race & Engine Tech big block 590 purple shaft cam spec?

Print Thread

Page 2 of 2

1

2

Re: big block 590 purple shaft cam spec? [Re: 440Jim] #887548 12/25/10 06:08 PM 12/25/10 06:08 PM
Joined: Nov 2005 Posts: 808 mckinney texas S shoebox super stock
shoebox super stock S Joined: Nov 2005 Posts: 808 mckinney texas	i dont know my cc's in my heads. they are uncut so im thinking 90+ cc's so i might have 9.7CR now. the engine is a running,hyd cam combo now that needs some updating. im trying to go faster on a super budget. what if i had a shim headgasket wouldnt that get my CR up? also can deck the block and heads. with the 590 whats the CR limit for pump fuel (93octane)? thanks! 74 dart sport 440 www.Csucarbs.com

Re: big block 590 purple shaft cam spec? [Re: 440Jim] #887549 12/25/10 07:39 PM 12/25/10 07:39 PM
Joined: Jan 2003 Posts: 6,591 Canton, Ohio S Sport440 master
Sport440 master S Joined: Jan 2003 Posts: 6,591 Canton, Ohio	Quote: 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----And Mine DUR. @ ---------Mine .020=303.5 -----.020=304 .050=270.5 -----.050=272 .100=235.0 -----.100=??? .150=205.0 -----.150=??? .200=177.0 -----.200=179 .250=148.5 -----.250=150 .300=117.0 -----.312=110 .350=76.0 -----.375=50 lobe [Email]lift@TDC[/Email] @105 ICL=.140 LSA 106 I added My actual measurements too. The .312 and .375 measurements represent duration at .500 and .600 lift with 1.6 rockers. mike Last edited by Sport440; 12/25/10 07:44 PM.

Re: big block 590 purple shaft cam spec? [Re: Sport440] #887550 12/25/10 08:13 PM 12/25/10 08:13 PM
Joined: Mar 2007 Posts: 501 ONTARIO,CANADA 6 604 Hemi GTX OP mopar
604 Hemi GTX OP mopar 6 Joined: Mar 2007 Posts: 501 ONTARIO,CANADA	What would you recommend for rockers and what type of retainer steel or ti.Just curious what you guys recommend. Thanks Kevin

Re: big block 590 purple shaft cam spec? [Re: AAR-B4] #887551 12/25/10 08:49 PM 12/25/10 08:49 PM
Joined: Jan 2003 Posts: 1,090 Saskatchewan, Canada B barracudabob super stock
barracudabob super stock B Joined: Jan 2003 Posts: 1,090 Saskatchewan, Canada	Quote: Quote: What do you guys recommend for valve springs? Comp 928 or K-Motion 850. My choices. Would these work with 1.6 rockers as well?

Re: big block 590 purple shaft cam spec? [Re: barracudabob] #887552 12/25/10 09:24 PM 12/25/10 09:24 PM
Joined: Feb 2006 Posts: 784 Liverpool, NY S SILVER67 super stock
SILVER67 super stock S Joined: Feb 2006 Posts: 784 Liverpool, NY	Hey Guys, Has anyone gone from say a .509 hyd. to the .590? How much of a difference would there be given say a 10.5:1 440 fairly ported big valve 906 heads. 3800 pound b-body.

Re: big block 590 purple shaft cam spec? [Re: SILVER67] #887553 12/25/10 09:45 PM 12/25/10 09:45 PM
Joined: Mar 2007 Posts: 501 ONTARIO,CANADA 6 604 Hemi GTX OP mopar
604 Hemi GTX OP mopar 6 Joined: Mar 2007 Posts: 501 ONTARIO,CANADA	Quote: Hey Guys, Has anyone gone from say a .509 hyd. to the .590? How much of a difference would there be given say a 10.5:1 440 fairly ported big valve 906 heads. 3800 pound b-body. that is kind of the same situation i'm in,but mine is 542ci,915 heads ported,comp?509 hyd and going to a 590 solid,single plane intake and dominator. Oh ya and the best mine has run was 10.92@123 and trying to get to maybe 10.50

Re: big block 590 purple shaft cam spec? [Re: barracudabob] #887554 12/25/10 09:49 PM 12/25/10 09:49 PM
Joined: Mar 2007 Posts: 3,300 Northern Indiana Dunnuck Racing master
Dunnuck Racing master Joined: Mar 2007 Posts: 3,300 Northern Indiana	Quote: Quote: Quote: What do you guys recommend for valve springs? Comp 928 or K-Motion 850. My choices. Would these work with 1.6 rockers as well? I ran the .590 with 1.6's and Comp 928 springs for several years without any issues. Keith www.dunnuckracing.com

Re: big block 590 purple shaft cam spec? [Re: SILVER67] #887555 12/25/10 10:03 PM 12/25/10 10:03 PM
Joined: Jan 2003 Posts: 3,830 N.E. Ohio 6bblFLASH master
6bblFLASH master Joined: Jan 2003 Posts: 3,830 N.E. Ohio	Quote: Hey Guys, Has anyone gone from say a .509 hyd. to the .590? How much of a difference would there be given say a 10.5:1 440 fairly ported big valve 906 heads. 3800 pound b-body. I did 20yrs. ago and went from 11.98 to 11.45. 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!

Re: big block 590 purple shaft cam spec? [Re: 6bblFLASH] #887556 12/25/10 10:15 PM 12/25/10 10:15 PM
Joined: Jan 2003 Posts: 17,918 Akron, Ohio ProSport I Live Here
ProSport I Live Here Joined: Jan 2003 Posts: 17,918 Akron, Ohio	I love the 590! I installed it at 104 in a 3050# DartSport with an 11.2:1 451. I used Harland 1.6 rockers on the Eddy heads, Isky 8005a springs with steel retainers. Ran 9.90's at 136 MPH all motor. New owner has gone 9.77 in the car. I never tried advancing the cam more, I wouldn't want to lose MPH and it had PLENTY of torque at 104. 1970 Challenger, all aluminum 528 Hemi, HDK suspension, Tremec 5 speed manual

Re: big block 590 purple shaft cam spec? [Re: 6bblFLASH] #887557 12/26/10 10:42 PM 12/26/10 10:42 PM
Joined: Oct 2004 Posts: 8,165 Left Coast B BobR master
BobR master B Joined: Oct 2004 Posts: 8,165 Left Coast	"I too have run and am running the .590. Lots of people say "theres better cams" I`ve just never found one." You're kidding, right?

Page 2 of 2

1

2

Moderated by Al_Alguire, Hotwheelsjr, moparts, not_a_charger, RangerDan440, tboomer

Hop To

Powered by UBB.threads™ PHP Forum Software 7.7.1