Re: 6.76 Rod options? better than Eagle/Scat. (not anymore
[Re: 1320Dart]
#1697123
11/13/14 08:43 PM
11/13/14 08:43 PM
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Joined: Jan 2003
Posts: 11,728 Portage,michigan
B3422W5
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 11,728
Portage,michigan
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ok, sounds like I need to re-consider Compstar and Molnar rods.
I wished Callies would make an Ultra H-Beam for Mopar, I'm hearing Chevy builders are really impressed with them and hearing that some Oliver rod are having some issues which never used to happen.
I'm only going to make 850 or less HP so I know Eagle, Scat, Molnar and Compstars would do all I need just thought I'd look into a better rod for a little more insurance and be able to run them for 3,000 passes and not worry about them (since I'm putting them in my KB block), other than to change the bolt every now and then.
Thanks for the help guys!
Molnar is the only one(in this price range) that will garantee that the rods he sells you will be good to "X" amount of HP. That kinda says something IMO.
Don't know Molnar, but frankly making a statement like that saying a rod is guaranteed to a certain horsepower I would find a negative, not a positive.
I know I ran 7500 rpm hundreds of passes in my 9 sec small block with compstars, with 13+ compression,then sold the car. Current owner had the motor completely refurbished couple seasons ago and the rods were reused( Best Machine). They still checked fine. The fact they like them is plenty good for me. I thought they were great looking units when I originally bought them.
69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight 418 BPE factory replacement headed stroker, 565 lift solid cam Best so far, low 10.30’s 1/4 1.41 best 60 foot 6.56 at 104.17
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Re: 6.76 Rod options? better than Eagle/Scat. (not anymore
[Re: dogdays]
#1697124
11/13/14 09:04 PM
11/13/14 09:04 PM
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Joined: Jan 2005
Posts: 12,424 Kalispell Mt.
HotRodDave
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I Live Here
Joined: Jan 2005
Posts: 12,424
Kalispell Mt.
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I think it would be more correct to say they fail from stress. If you took the same rod and run a lighter piston it is going to have less stress on it than a heavy piston at the same RPM and it will last longer. Also if you run a shorter stroke at the same RPM and piston weight the one with the shorter stroke will not see as much stress and will last longer. So RPM does kill them but it is more than just saying they can handle 10,000 rpm, it needs to be quantified with saying they can handle X amount of RPM with X amount of stroke and X piston weight as all threee of those are probably the biggest variables although there are others.
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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Re: 6.76 Rod options? better than Eagle/Scat. (not anymore
[Re: dogdays]
#1697126
11/14/14 01:47 AM
11/14/14 01:47 AM
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Joined: Apr 2003
Posts: 3,527 Tulsa, Oklahoma
340Cuda
master
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master
Joined: Apr 2003
Posts: 3,527
Tulsa, Oklahoma
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Rods don't fail from horsepower, they fail from rpm.
Most every rod failure mode is in tension, except for the hydrolock scenario.
R.
This exactly what Tom Molnar will tell you because I just had this conversation with him on a small block rod.
Bill
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Re: 6.76 Rod options? better than Eagle/Scat. (not anymore
[Re: 340Cuda]
#1697127
11/14/14 03:15 PM
11/14/14 03:15 PM
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Joined: Jan 2005
Posts: 12,424 Kalispell Mt.
HotRodDave
I Live Here
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I Live Here
Joined: Jan 2005
Posts: 12,424
Kalispell Mt.
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Do you really think 10,000 RPM with a 1 inch stroke is going to put the same stress on a rod as 10,000 with a 4 inch stroke?
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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Re: 6.76 Rod options? better than Eagle/Scat. (not anymore
[Re: HotRodDave]
#1697128
11/14/14 03:27 PM
11/14/14 03:27 PM
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Joined: Feb 2007
Posts: 2,578 sweden
1Fast340
master
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master
Joined: Feb 2007
Posts: 2,578
sweden
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Most rodfailures are secondary failures the primary fault is usualy elsewhere like the rodbolts or oilsystem not up to the task. now that we have left the [Edited by Moparts - Family Friendly Site - Keep it clean] about what realy fails behind us i would still recomend the Autoverdi rods. some of the absolute best steel rods you will ever find and as a bonus you will get them made with whatever lenght,width,big and small end sizes you think you need. within reasonable limits ofcourse.
Last edited by 1Fast340; 11/14/14 03:29 PM.
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Re: 6.76 Rod options? better than Eagle/Scat. (not anymore
[Re: 1Fast340]
#1697129
11/14/14 03:42 PM
11/14/14 03:42 PM
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Joined: May 2014
Posts: 503 Idaho
1320Dart
mopar
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mopar
Joined: May 2014
Posts: 503
Idaho
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Quote:
Most rodfailures are secondary failures the primary fault is usualy elsewhere like the rodbolts or oilsystem not up to the task. now that we have left the [Edited by Moparts - Family Friendly Site - Keep it clean] about what realy fails behind us i would still recomend the Autoverdi rods. some of the absolute best steel rods you will ever find and as a bonus you will get them made with whatever lenght,width,big and small end sizes you think you need. within reasonable limits ofcourse.
And what is the price tag on a rod that has all the bonuses?
Greg ----------------------------------------------------------------- Cost is irrelevant, making memories is far more valuable!
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Re: 6.76 Rod options? better than Eagle/Scat. (not anymore
[Re: 1320Dart]
#1697130
11/14/14 03:50 PM
11/14/14 03:50 PM
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Joined: Jan 2003
Posts: 75,094 A Banana Republic near you.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,094
A Banana Republic near you.
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Quote:
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Most rodfailures are secondary failures the primary fault is usualy elsewhere like the rodbolts or oilsystem not up to the task. now that we have left the [Edited by Moparts - Family Friendly Site - Keep it clean] about what realy fails behind us i would still recomend the Autoverdi rods. some of the absolute best steel rods you will ever find and as a bonus you will get them made with whatever lenght,width,big and small end sizes you think you need. within reasonable limits ofcourse.
And what is the price tag on a rod that has all the bonuses?
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Re: 6.76 Rod options? better than Eagle/Scat. (not anymore
[Re: dogdays]
#1697132
11/14/14 04:08 PM
11/14/14 04:08 PM
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Joined: Jan 2003
Posts: 75,094 A Banana Republic near you.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,094
A Banana Republic near you.
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Do the Autoverdi rods sing opera? Is someone in their production path named Giuseppe?
Frankly I am puzzled why you can't get Crower to make a set. They have been advertising for years that they can make any rod. Billet is billet, after all. Did you talk to someone there? Or just enquire whether they had some on the shelf? And likewise with most of the others, they must be pretty busy to not want to make a sale.
R.
A lot of these places don't want to do a rod unless it's a run , so if you want to buy say 100 rods then you might get them to make you a set of what you want. I remember that was what Manley was saying when the sportsmaster rod for BB mopar was the rage .
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Re: 6.76 Rod options? better than Eagle/Scat. (not anymore
[Re: JohnRR]
#1697133
11/14/14 05:17 PM
11/14/14 05:17 PM
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Joined: Feb 2007
Posts: 2,578 sweden
1Fast340
master
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master
Joined: Feb 2007
Posts: 2,578
sweden
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Quote:
Quote:
Most rodfailures are secondary failures the primary fault is usualy elsewhere like the rodbolts or oilsystem not up to the task. now that we have left the [Edited by Moparts - Family Friendly Site - Keep it clean] about what realy fails behind us i would still recomend the Autoverdi rods. some of the absolute best steel rods you will ever find and as a bonus you will get them made with whatever lenght,width,big and small end sizes you think you need. within reasonable limits ofcourse.
And what is the price tag on a rod that has all the bonuses?
Dont know there current pricing but last i checked they where not cheap by any means but they where not as expensive as i would have thought for a real custom rod.
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Do the Autoverdi rods sing opera? Is someone in their production path named Giuseppe?
Frankly I am puzzled why you can't get Crower to make a set. They have been advertising for years that they can make any rod. Billet is billet, after all. Did you talk to someone there? Or just enquire whether they had some on the shelf? And likewise with most of the others, they must be pretty busy to not want to make a sale.
R.
Doubt they sing opera unless you pay them for it and im not sure they are that good at it either. they do two things that i know of,real good connecting rods and oilpumps.
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Do the Autoverdi rods sing opera? Is someone in their production path named Giuseppe?
Frankly I am puzzled why you can't get Crower to make a set. They have been advertising for years that they can make any rod. Billet is billet, after all. Did you talk to someone there? Or just enquire whether they had some on the shelf? And likewise with most of the others, they must be pretty busy to not want to make a sale.
R.
A lot of these places don't want to do a rod unless it's a run , so if you want to buy say 100 rods then you might get them to make you a set of what you want. I remember that was what Manley was saying when the sportsmaster rod for BB mopar was the rage .
doubt autoverdi cares if you order 8 or 80 rods. you will get the same quality anyway.
the link again,just contact them and see what they say. http://www.autoverdi.com/rods.html
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Re: 6.76 Rod options? better than Eagle/Scat. (not anymore
[Re: dogdays]
#1697135
11/14/14 05:31 PM
11/14/14 05:31 PM
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Joined: Feb 2007
Posts: 2,578 sweden
1Fast340
master
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master
Joined: Feb 2007
Posts: 2,578
sweden
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Do Swedes have a sense of humor?
Giuseppe Verdi is one of the most famous composers of opera.
R.
Some of us has it,some gets lost in translation and lack of knowledge in opera
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Re: 6.76 Rod options? better than Eagle/Scat. (not anymore
[Re: Eric]
#1697137
11/14/14 07:12 PM
11/14/14 07:12 PM
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Joined: Feb 2011
Posts: 4,302 Nebraska
72Swinger
master
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master
Joined: Feb 2011
Posts: 4,302
Nebraska
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I would not go with K1 or Compstar personally. I was going to recommend Carillo I-beams but they don't show anything shorter than 7.10 and use a .927 pin anyway.
Mopar to the bone!!!
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Re: 6.76 Rod options? better than Eagle/Scat. (not anymore
[Re: 72Swinger]
#1697138
11/14/14 07:40 PM
11/14/14 07:40 PM
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Joined: Oct 2011
Posts: 515 geezer acres rest home
dakotawilly
mopar
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mopar
Joined: Oct 2011
Posts: 515
geezer acres rest home
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opera? really?,just seems to me that since you are using that shiny new kb block you would sleep way better at night if you just buy the absolute best rods and forget it,especially after the frankenmess occurance.nothing is perfect by any means,but,having a mind at peace in an 8000 rpm envirionment when your build cost is fast approaching your mortgage amount is priceless!!!
SFI 25.5 depends,no leak,even at 213 mph....
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Re: 6.76 Rod options? better than Eagle/Scat. (not anymore
[Re: 72Swinger]
#1697139
11/14/14 07:47 PM
11/14/14 07:47 PM
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Joined: Jan 2003
Posts: 3,505 DFW
mr_340
master
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master
Joined: Jan 2003
Posts: 3,505
DFW
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I was going to recommend Carillo I-beams but they don't show anything shorter than 7.10 and use a .927 pin anyway.
APPROVED CONNECTING RODS NHRA/IHRA 6842 MP-440-SS>- 76760H Mopar 413/426/440 Wedge NHRA Super Stock 5948 MP-440-SS>- 76760S Mopar 413/426/440 Wedge NHRA Super Stock
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