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Re: Updates on the Edelbrock Victor Installed Height Saga
[Re: MoParFish]
#1753613
03/03/15 01:30 AM
03/03/15 01:30 AM
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Joined: Mar 2003
Posts: 9,100
Rogue River, OR
Jeremiah
OP
master
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OP
master
Joined: Mar 2003
Posts: 9,100
Rogue River, OR
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Quote:
Quote:
Updated Spreadsheet with the 10 degree stuff:
Thanks for posting your findings 
Heck yeah. Thanks for sharing your build as well. I'm looking forward to coming down and doing some stick shift racing with you guys.
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Re: Updates on the Edelbrock Victor Installed Height Saga
[Re: jlatessa]
#1753615
03/03/15 01:34 AM
03/03/15 01:34 AM
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Joined: Mar 2003
Posts: 9,100
Rogue River, OR
Jeremiah
OP
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OP
master
Joined: Mar 2003
Posts: 9,100
Rogue River, OR
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Quote:
I see on Hughs' installation instructions, they address the shim
problem with instructions to trim the ends to avoid undue side
stress on the rocker pedestals.
Shims to my feelings are problematic because of the way we're introducing something into the original design that is
possibly degrading it.
My 
Joe
Agreed 100% on the shims. I don't want to have to keep track of and clean all of that stuff every time the valve train comes apart either. The spacers on the other hand are a nice clean solution to a tricky and difficult to correct problem.
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Re: Updates on the Edelbrock Victor Installed Height Saga
[Re: BradH]
#1753617
03/03/15 09:55 PM
03/03/15 09:55 PM
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Joined: Mar 2003
Posts: 9,100
Rogue River, OR
Jeremiah
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Posts: 9,100
Rogue River, OR
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I was wondering the same thing, in fact I made a thread about it. Nobody really has any insight either way so I figured somebody has to figure this out. I guess it's going to be me? http://www.americanfastener.com/astm-sae-and-iso-grade-markings-for-steel-fasteners/The aluminum threads will pull out long before the stud breaks if you think about it. The studs have a flat for a wrench in the middle so they are not even full radius in the middle.  Oh well that's what we are using.
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Re: Updates on the Edelbrock Victor Installed Height Saga
[Re: Jeremiah]
#1753618
03/04/15 03:40 PM
03/04/15 03:40 PM
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Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
BradH
Taking time off to work on my car
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Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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Quote:
The aluminum threads will pull out long before the stud breaks if you think about it.
I'd rather not... 
Found the ARPs are 180,000 psi.
Not sure what the Indy studs are rated, but the longer of the two used in their 440-1/SR stud kits are 3.5+" long. If you were concerned enough to swap 'em out, you could probably get all long ones and cut down the ones that need to be shorter, 'cuz I believe their short ones are still < 3".
Just a thought (or two).
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Re: Updates on the Edelbrock Victor Installed Height Saga
[Re: BradH]
#1753619
03/05/15 01:21 PM
03/05/15 01:21 PM
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Joined: Mar 2003
Posts: 9,100
Rogue River, OR
Jeremiah
OP
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OP
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Joined: Mar 2003
Posts: 9,100
Rogue River, OR
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Quote:
Quote:
The aluminum threads will pull out long before the stud breaks if you think about it.
I'd rather not...
Found the ARPs are 180,000 psi.
Not sure what the Indy studs are rated, but the longer of the two used in their 440-1/SR stud kits are 3.5+" long. If you were concerned enough to swap 'em out, you could probably get all long ones and cut down the ones that need to be shorter, 'cuz I believe their short ones are still < 3".
Just a thought (or two).
You are correct on the Indy studs. I am going to measure up the Hughes, Indy, and Jeremiah (McMaster-Carr) kit over the weekend and post the lengths. To set this straight my concern is only the center rocker stand due to it's lack of girth and problems experienced by other users.
So yes, the 3.5" studs are not a concern. My initial measurements told me that I needed a 3" stud with 1" of thread engagement into the center rocker stand. As far as I know there is only one made and having them made up custom at $22/pc is out of the question. The studs from McMaster-Carr are high quality, rolled threads. The studs from Indy look like the thread was machined. Does anyone know the tensile strength of the Indy stud? What material do they use? Do we know what tensile strength is even required?
I sure don't have enough FEA, strengths of materials or load testing experience/background to say one way or another. I do have (barely) enough experience to say we are over thinking this and I should just run them and whoop some some a$$ on the street and track.
Look at it this way - if my engine breaks because of the studs or any other of the untested parts in it we can all learn and...I have another identical 511" short block sitting next to this one. 
Besides, pretty soon it's going to get hot the only car we have running is the convertible. I'll forget about this nonsense, close the shop for summer and you can find us in the pond floating around with a cold beers.
bikini clad girl > sweaty meats heads at race track
ps Do any of you guys have the ability to test bolt shear at work? I'd be willing to donate some parts.
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Re: Updates on the Edelbrock Victor Installed Height Saga
[Re: BradH]
#1753622
03/05/15 02:46 PM
03/05/15 02:46 PM
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Joined: Jul 2009
Posts: 494
IL
EchoSixMike
mopar
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mopar
Joined: Jul 2009
Posts: 494
IL
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Quote:
Quote:
The bolts I used were from McMaster Carr:
http://www.mcmaster.com/#90281a636/=w52oaz
http://www.mcmaster.com/#90281a638/=w52obb
Just for comparison, I noticed the strength rating on those studs are only 125,000 psi vs. what Hughes sells (I know, those are too short) that are rated at 170,000 psi.
Don't know what ARP's studs are, but I'd be curious if that 125,000 psi level is strong enough, considering the spring pressure you're going to run.
Just doing some math says these bolts will have a failure point of about 13800lbs, now assume 4:1 design margin and you have about 3450lbs working load limit. Back of napkin type math, but it gives an idea. S/F.....Ken M
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