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Re: SB Edelbrock LA heads 304cfm@.600" [Re: Dunnuck Racing] #1003508 06/13/11 12:28 PM 06/13/11 12:28 PM
Joined: Dec 2004 Posts: 128 Finland M mopster OP member
mopster OP member M Joined: Dec 2004 Posts: 128 Finland	No time for dyno, I have a race next weekend

Re: SB Edelbrock LA heads 304cfm@.600" [Re: mopster] #1003509 06/13/11 12:41 PM 06/13/11 12:41 PM
Joined: Mar 2007 Posts: 3,300 Northern Indiana Dunnuck Racing master
Dunnuck Racing master Joined: Mar 2007 Posts: 3,300 Northern Indiana	The reason I ask is,I was wondering what you used for an installed centerline? I tested an older version of the MP 4120657 camshaft in my 421. I played around with the camshaft timing to see what it would do. This was an older version,312-106 that has a .404 lobe lift instead of the current design. I know a lot of people say to advance these camshafts a lot more than the MP recommendation, but with mine,it lost quite a bit of power past 104 installed. Every engine will be different,but I just thought I would pass it on. Keith www.dunnuckracing.com

Re: SB Edelbrock LA heads 304cfm@.600" [Re: Dunnuck Racing] #1003510 06/13/11 02:39 PM 06/13/11 02:39 PM
Joined: Dec 2004 Posts: 128 Finland M mopster OP member
mopster OP member M Joined: Dec 2004 Posts: 128 Finland	I have it at 104.

Re: SB Edelbrock LA heads 304cfm@.600" [Re: Dunnuck Racing] #1003511 06/13/11 03:51 PM 06/13/11 03:51 PM
Joined: Jan 2003 Posts: 5,484 SoCal Brian Hafliger master
Brian Hafliger master Joined: Jan 2003 Posts: 5,484 SoCal	Quote: The reason I ask is,I was wondering what you used for an installed centerline? I tested an older version of the MP 4120657 camshaft in my 421. I played around with the camshaft timing to see what it would do. This was an older version,312-106 that has a .404 lobe lift instead of the current design. I know a lot of people say to advance these camshafts a lot more than the MP recommendation, but with mine,it lost quite a bit of power past 104 installed. Every engine will be different,but I just thought I would pass it on. Keith I'll pass this on as well since we're in the sharing mood... Our engine we just did liked straight up best. This was on a 112lca. Brian Brian Hafliger

Re: SB Edelbrock LA heads 304cfm@.600" [Re: Dunnuck Racing] #1003512 06/13/11 04:30 PM 06/13/11 04:30 PM
Joined: Jun 2009 Posts: 438 Great Lakes Region A abodiesonly1 mopar
abodiesonly1 mopar A Joined: Jun 2009 Posts: 438 Great Lakes Region	Quote: The reason I ask is,I was wondering what you used for an installed centerline? I tested an older version of the MP 4120657 camshaft in my 421. I played around with the camshaft timing to see what it would do. This was an older version,312-106 that has a .404 lobe lift instead of the current design. I know a lot of people say to advance these camshafts a lot more than the MP recommendation, but with mine,it lost quite a bit of power past 104 installed. Every engine will be different,but I just thought I would pass it on. Keith Any info on the current design? I just installed the current .590 to try out and installed it on a 102. Will keep ya posted on what it likes.

Re: SB Edelbrock LA heads 304cfm@.600" [Re: abodiesonly1] #1003513 06/13/11 05:37 PM 06/13/11 05:37 PM
Joined: Jan 2003 Posts: 9,870 Weddington, N.C. Streetwize master
Streetwize master Joined: Jan 2003 Posts: 9,870 Weddington, N.C.	I've genereally found if the port cross section is relatively small compared the the cylinder swept volume (as is usually the case with a lot of wedge strokers), putting the cam in later helps the top end power, also an under-ported motor (if it has any decent compression) generally has an abundance of torque to begin with. Advancing the cam generally works well when you've got plenty of port, adequate cam and compression but you're wanting to "use it all up" within a certain RPM limit. Last edited by Streetwize; 06/13/11 05:38 PM. WIZE World's Quickest Diahatsu Rocky (??) 414" Stroker Small block Mopar Powered. 10.84 @ 123...and gettin' quicker! https://www.youtube.com/watch?v=-mWzLma3YGI In Car: https://www.youtube.com/watch?v=PjXcf95e6v0

Re: SB Edelbrock LA heads 304cfm@.600" [Re: abodiesonly1] #1003514 06/13/11 07:21 PM 06/13/11 07:21 PM
Joined: Mar 2007 Posts: 3,300 Northern Indiana Dunnuck Racing master
Dunnuck Racing master Joined: Mar 2007 Posts: 3,300 Northern Indiana	Any info on the current design? I just installed the current .590 to try out and installed it on a 102. Will keep ya posted on what it likes. Mine is just an older version,with more lift.The valve opening/closing seat to seat and @.050 events are the same. I had it in at 101.5(aiming for 102) and it lost power across the entire range. I retarded it to 105 currently,and it is down a little but not nearly as bad,104 is the clear winner on mine. Keith www.dunnuckracing.com

Re: SB Edelbrock LA heads 304cfm@.600" [Re: Dunnuck Racing] #1003515 06/14/11 12:09 PM 06/14/11 12:09 PM
Joined: Dec 2004 Posts: 128 Finland M mopster OP member
mopster OP member M Joined: Dec 2004 Posts: 128 Finland	I actually considered advancing the cam because I have a little close ex valve/piston clearance, but I didn�t do it because I thought it would cost me power. Here�s another pic with the fuel system and air cleaners. A bit tall for a street motor?

Re: SB Edelbrock LA heads 304cfm@.600" [Re: mopster] #1003516 06/14/11 02:11 PM 06/14/11 02:11 PM
Joined: Jan 2003 Posts: 5,484 SoCal Brian Hafliger master
Brian Hafliger master Joined: Jan 2003 Posts: 5,484 SoCal	Looks good! Brian Hafliger

Re: SB Edelbrock LA heads 304cfm@.600" [Re: mopster] #1003517 07/21/11 05:45 PM 07/21/11 05:45 PM
Joined: Jul 2006 Posts: 4,595 On the south side of Nowhere S S/ST 3040 master
S/ST 3040 master S Joined: Jul 2006 Posts: 4,595 On the south side of Nowhere	Quote: It�s a 408 pump gas street engine with 10.7:1 CR, MP .590" flat tappet cam and 1.6 rockers Any 1/4 mile hits with this thing yet?

Re: SB Edelbrock LA heads 304cfm@.600" [Re: Quicktree] #1003518 07/21/11 07:36 PM 07/21/11 07:36 PM
Joined: Jun 2010 Posts: 3,112 LONG ISLAND fishy340 master
fishy340 master Joined: Jun 2010 Posts: 3,112 LONG ISLAND	Quote: Quote: very nice I like the blacked out carb and valve covers. i agree very sharp looking motor,the customer is gonna very pleased with the power also..sweet Brian

Re: SB Edelbrock LA heads 304cfm@.600" [Re: S/ST 3040] #1003519 07/22/11 02:00 AM 07/22/11 02:00 AM
Joined: Dec 2004 Posts: 128 Finland M mopster OP member
mopster OP member M Joined: Dec 2004 Posts: 128 Finland	Quote: Quote: It�s a 408 pump gas street engine with 10.7:1 CR, MP .590" flat tappet cam and 1.6 rockers Any 1/4 mile hits with this thing yet? I have a race tomorrow at a decent track, I�ll report as soon as I get back.

Re: SB Edelbrock LA heads 304cfm@.600" [Re: mopster] #1003520 08/02/11 06:40 PM 08/02/11 06:40 PM
Joined: Dec 2004 Posts: 128 Finland M mopster OP member
mopster OP member M Joined: Dec 2004 Posts: 128 Finland	Ok, it ran 10.8 / 125mph. It�s a 3300lbs street car with 727, dana60, 10" converter and no transbrake. It was a very hot day, and also I didn�t get my 60ft times quite in the right zone since I only had chance to run four runs. All things considered I still think it was 1-2 tenths slower than I expected.

Re: SB Edelbrock LA heads 304cfm@.600" [Re: mopster] #1003521 08/02/11 07:47 PM 08/02/11 07:47 PM
Joined: Mar 2007 Posts: 3,300 Northern Indiana Dunnuck Racing master
Dunnuck Racing master Joined: Mar 2007 Posts: 3,300 Northern Indiana	Don't feel bad,mine is slower than I would expect it to be too. They never do what we would think they should and you still will find some e.t. with tuning I would bet. Keith www.dunnuckracing.com

Re: SB Edelbrock LA heads 304cfm@.600" [Re: Brian Hafliger] #1003522 08/08/11 12:54 AM 08/08/11 12:54 AM
Joined: Dec 2007 Posts: 10 Sacramento P ptowntsi member
ptowntsi member P Joined: Dec 2007 Posts: 10 Sacramento	Quote: That engine with those heads made 621HP this morning on pump gas. TQ was 541. Roller cam, 10.9:1, 1050, TTI 1 7/8 x 3.5" header. just saw this in my car craft that came yesterday. very nice!

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