Re: Manton rocker arms
[Re: AndyF]
#2410396
11/28/17 10:18 PM
11/28/17 10:18 PM
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Joined: Nov 2004
Posts: 3,547 Syracuse,NY
CompWedgeEngines
master
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master
Joined: Nov 2004
Posts: 3,547
Syracuse,NY
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Kinda sorta I guess. Manton actually operates as two different " groups " so to speak.When Terry was around, he was obviously the " pushrod guy". Noel, was , and has always been heavy into rocker arms, rocker screws and blown alky stuff.He has many friends in " high places" on that community. Darien/Meadows etc.He is phenominal with the blown stuff, Hemi's etc. I get all my blown stuff there, rocker screws, and have had him re-bush some Stage V rockers etc. he has had his own stuff for a while now, I think this may be new generation stuff.One thing will be for sure. It will be well built, and for the hardcore racer.NOT for the faint of wallet.
RIP Monte Smith
Your work is a reflection of yourself, autograph it with quality.
WD for Diamond Pistons,Sidewinder cylinder heads, Wiseco, K1 rods and cranks,BAM lifters, Morel lifters, Molnar Technologies, Harland Sharp, Pro Gear, Cometic, King Engine Bearings and many others.
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Re: Manton rocker arms
[Re: CompWedgeEngines]
#2410827
11/29/17 05:13 PM
11/29/17 05:13 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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I see they are bushed.. are they alum or stainless.. nice lookin.. do they make SB stuff also
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Re: Manton rocker arms
[Re: MR_P_BODY]
#2410854
11/29/17 05:45 PM
11/29/17 05:45 PM
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Joined: Sep 2014
Posts: 4,457 Washington
madscientist
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master
Joined: Sep 2014
Posts: 4,457
Washington
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I see they are bushed.. are they alum or stainless.. nice lookin.. do they make SB stuff also I wish they did make SB stuff. But I already called. If they did make some, you and I would probably be the only buyers.
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
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Re: Manton rocker arms
[Re: madscientist]
#2410860
11/29/17 05:56 PM
11/29/17 05:56 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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I see they are bushed.. are they alum or stainless.. nice lookin.. do they make SB stuff also I wish they did make SB stuff. But I already called. If they did make some, you and I would probably be the only buyers. Everything I own for rockers is TD.. I was just curious
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Re: Manton rocker arms
[Re: MR_P_BODY]
#2410887
11/29/17 06:39 PM
11/29/17 06:39 PM
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Joined: Jan 2003
Posts: 6,190 Melbourne , Australia
LA360
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master
Joined: Jan 2003
Posts: 6,190
Melbourne , Australia
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They're Duramax arms or something similar. They seem to do a bit of diesel stuff, along with the Fuel stuff. I saw the BBC rocker arms on their Instagram earlier in the year. All the arms are some grade of tool steel from memory. All very high quality stuff as you'd expect.
Alan Jones
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Re: Manton rocker arms
[Re: AndyF]
#2411016
11/29/17 10:24 PM
11/29/17 10:24 PM
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Joined: Oct 2007
Posts: 4,225 New York
polyspheric
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master
Joined: Oct 2007
Posts: 4,225
New York
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If those are steel there's a lot of excess reciprocating weight yet to come off (near the ends, leave the bushing boss alone).
I don't understand why, after all that R&D money spent, they don't do an FEA that will instantly tell them where the unnecessary weight is, which they can then remove from the "lite" model... and charge $100 extra (when actually it just means running the semi-finished rocker through another CNC program, no hand labor).
If it were my purchase I'd happily pay that to know that the weight was removed where I couldn't evaluate it. Some of is intuitive (you know what I mean) but how far back can you bevel the edge before the roller pin is compromised...? Will it help? Where you're not sure if you have enough spring, or pushrod, or you're stable at X RPM it can't hurt.
Boffin Emeritus
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Re: Manton rocker arms
[Re: polyspheric]
#2411041
11/29/17 10:57 PM
11/29/17 10:57 PM
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Joined: Oct 2011
Posts: 3,036 bean town ....Ca
WHITEDART
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master
Joined: Oct 2011
Posts: 3,036
bean town ....Ca
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If those are steel there's a lot of excess reciprocating weight yet to come off (near the ends, leave the bushing boss alone).
I don't understand why, after all that R&D money spent, they don't do an FEA that will instantly tell them where the unnecessary weight is, which they can then remove from the "lite" model... and charge $100 extra (when actually it just means running the semi-finished rocker through another CNC program, no hand labor).
If it were my purchase I'd happily pay that to know that the weight was removed where I couldn't evaluate it. Some of is intuitive (you know what I mean) but how far back can you bevel the edge before the roller pin is compromised...? Will it help? Where you're not sure if you have enough spring, or pushrod, or you're stable at X RPM it can't hurt. really...
In the 8s N/A.with Brett miller W8's 5.07 at 133 at 2700lb
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Re: Manton rocker arms
[Re: AndyF]
#2411077
11/29/17 11:57 PM
11/29/17 11:57 PM
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Joined: Oct 2007
Posts: 4,225 New York
polyspheric
master
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master
Joined: Oct 2007
Posts: 4,225
New York
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Of course, engineering is just silly. Continue to make rocker arms based on sketch on cocktail napkin.
Boffin Emeritus
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Re: Manton rocker arms
[Re: polyspheric]
#2411138
11/30/17 02:53 AM
11/30/17 02:53 AM
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Joined: Aug 2003
Posts: 44,161 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 44,161
Bend,OR USA
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Isn't theory, computer modeling, one thing and real world racing another thing altogether I think some of the better all out race T&D rockers are made with chromoly (SP?) steel I have set of paired shaft Jesels rocker that are not aluminum, there steel of some sort When I called Jesels tech help line they denied making any non aluminum rocker arms
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Manton rocker arms
[Re: Cab_Burge]
#2411221
11/30/17 11:36 AM
11/30/17 11:36 AM
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Joined: Jan 2003
Posts: 13,629 Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,629
Marion, South Carolina [><]
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Isn't theory, computer modeling, one thing and real world racing another thing altogether Yes Cab!!!
CHIP '69 road runner, 440-6, 4 speed, Dana 60 '70 'cuda, 575" Hemi, 727, Dana 60 '71 Demon 340, no drivetrain, on blocks behind the barn '73 Chrysler New Yorker, 440, 727, 8.75....................FOR SALE '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax '17 Ram 1500 5.7 Hemi
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Re: Manton rocker arms
[Re: AndyF]
#2411245
11/30/17 12:15 PM
11/30/17 12:15 PM
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Joined: Oct 2006
Posts: 248 Cranberry Twp PA (North of Pit...
rumblefish72
enthusiast
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enthusiast
Joined: Oct 2006
Posts: 248
Cranberry Twp PA (North of Pit...
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The FEA Software has evolved to the point where everything expensive that's manufactured in volume gets many FEA iterations before anything is ever produced. Many years ago, I had a long discussion with John Swanson (founder of ANSYS) and he schooled me on the evolution of FEA software tools. I was amazed and found it hard to believe all that he was telling me but it is true. The sophistication of these FEA Tools is mind-blowing. I've been learning Solidworks CAD in my spare time. I've built several models out of parts in Solidworks. Once you put all the parts together with all the "mates" to make the model, you can actually spin a crankshaft with connecting rods and pistons by click-and-hold on the crankshaft and spinning it by moving the mouse around. Seeing the crank spin, the rods move and the pistons go up and down all on the computer screen was pretty cool. Even Solidworks has simulation capability (not to the extent that the ANSYS Tool has). Of course, these tools aren't foolproof but when there's a goof-up, it's usually because the simulation parameters weren't entered correctly or there was a force that you were unaware of and didn't account for in the sim. It's not the simulation software that made the mistake. I'm by no means an expert in this but I am a computer guy and follow the state of the art in many computer related areas. Some of this stuff is scary.
But of course, there's no substitute for testing at the dragstrip. But if something fails there after the sim says you're ok, then you need to figure out what parameter you messed up when running the simulation.
As engine builders and drag racers, we typically are building one-off, low-volume parts so we draw it up on a napkin and machine it on our manual mills. We test at the track and if it breaks, we redesign and re-manufacture. But that's not the way the Manufacturing Industry does things.
1972 Pro-Street 'Cuda, 500" Eagle stoker B Block, Eddy RPM heads, Victor Manifold, 850 Mighty Demon, Hemi 4 Speed, Dana 60 w/4.88 gears - Built by Hansen Racing Middlesex - NJ
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Re: Manton rocker arms
[Re: rumblefish72]
#2411319
11/30/17 02:50 PM
11/30/17 02:50 PM
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Joined: Aug 2003
Posts: 44,161 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 44,161
Bend,OR USA
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Designers, programmers and engineers make mistake, machine don't I've worked and watch the evolution of communications, all types since the early 1960. Once the phone company switch to main frame computers for providing all types phone service I started taking classes in electricity and computer hardware and software to help me do my job better. We have come a long ways in every type of technology but we still have people designing, theorizing and find out new ways to learn and make mistakes I can't wait for teletransporting
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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