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Re: Eagle rotating assembly, rod side clearance question
[Re: crscuda]
#811103
09/21/10 09:04 PM
09/21/10 09:04 PM
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Joined: May 2007
Posts: 1,443
Maryland
Dads426
pro stock
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pro stock
Joined: May 2007
Posts: 1,443
Maryland
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You can't do anything about it. It won't hurt anything. It will sling more oil on the cylinder walls, (EDIT: OK, I stand corrected. The bearing clearance, not the side clearance determines how much oil will be be slung on cylinder walls. That makes sense) but many engines have been assembled with that much clearance with no problems.
Last edited by Dads426; 09/22/10 09:14 PM.
2012 422 Allstars NSS Champion
2013 422 Allstars NSS Champion
2014 422 Allstars NSS Champion
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Re: Eagle rotating assembly, rod side clearance question
[Re: crscuda]
#811105
09/21/10 09:33 PM
09/21/10 09:33 PM
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Joined: Aug 2009
Posts: 2,042
Mooresburg, Tn
'72CudaRacer
top fuel
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top fuel
Joined: Aug 2009
Posts: 2,042
Mooresburg, Tn
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Get the rods that you are comfortable with and don't be concerned about the excess side clearace. It was a concern to me until I really started looking and that stock side clearance spec is almost unobtainable. My engine has a stock crank and Ohio Crankshaft H-beam rods and the clearance is well over .030", making just under 600 HP. Like the above poster stated, you can't do anything about it, just like if you measure the actual length, center of crank to center of pin, it will most likely be less than 6.760, which is already shorter than stock.  Brian Dunnigan
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Re: Eagle rotating assembly, rod side clearance question
[Re: moparmxz]
#811107
09/21/10 11:55 PM
09/21/10 11:55 PM
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Joined: Oct 2003
Posts: 7,506
Az
Crizila
master
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master
Joined: Oct 2003
Posts: 7,506
Az
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This aint a new topic ( means less than a year old). I called Eagle on this and their recommendation was .016" I believe. I also thought that more clearance ment more oil slung on the cylinder walls. I was shown ( mathematically ) by a poster that I was wrong. Also heard from some members that they ran as much as .070" with no problems. It appears there are more issues with tight than with loose. Keep this in mind; the rods do jump from side to side as they travel up and down ( IMHO ).
Fastest 300
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Re: Eagle rotating assembly, rod side clearance question
[Re: Crizila]
#811108
09/22/10 09:46 AM
09/22/10 09:46 AM
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Joined: Jul 2008
Posts: 30,431
Florida STAYcation
BeEtLeJuIcE !
The village idiot's idiot
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The village idiot's idiot
Joined: Jul 2008
Posts: 30,431
Florida STAYcation
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Quote:
This aint a new topic ( means less than a year old). I called Eagle on this and their recommendation was .016" I believe. I also thought that more clearance ment more oil slung on the cylinder walls. I was shown ( mathematically ) by a poster that I was wrong. Also heard from some members that they ran as much as .070" with no problems. It appears there are more issues with tight than with loose. Keep this in mind; the rods do jump from side to side as they travel up and down ( IMHO ).
BUT ... Eagle IS right and you were correct !  ... and the people who say it makes NO diff ...are uNcorrect !!  
Is running fat clearance going to "hurt" your motor? ... Of course not .. but it will cost you power ... both in running your pump to an excess AND running the crank, rods and pistons THROUGH all that excess oil AND pulling that Xtra oil off the cylinder walls.
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Re: Eagle rotating assembly, rod side clearance question
[Re: BeEtLeJuIcE !]
#811109
09/22/10 09:52 AM
09/22/10 09:52 AM
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Joined: Jan 2003
Posts: 75,020
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,020
U.S.S.A.
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Quote:
Quote:
This aint a new topic ( means less than a year old). I called Eagle on this and their recommendation was .016" I believe. I also thought that more clearance ment more oil slung on the cylinder walls. I was shown ( mathematically ) by a poster that I was wrong. Also heard from some members that they ran as much as .070" with no problems. It appears there are more issues with tight than with loose. Keep this in mind; the rods do jump from side to side as they travel up and down ( IMHO ).
BUT ... Eagle IS right and you were correct ! ... and the people who say it makes NO diff ...are uNcorrect !!
Is running fat clearance going to "hurt" your motor? ... Of course not .. but it will cost you power ... both in running your pump to an excess AND running the crank, rods and pistons THROUGH all that excess oil AND pulling that Xtra oil off the cylinder walls.
Doctor D you should stick to things you actually know about ...
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Re: Eagle rotating assembly, rod side clearance question
[Re: JohnRR]
#811111
09/22/10 09:59 AM
09/22/10 09:59 AM
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Joined: Jul 2008
Posts: 30,431
Florida STAYcation
BeEtLeJuIcE !
The village idiot's idiot
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The village idiot's idiot
Joined: Jul 2008
Posts: 30,431
Florida STAYcation
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Hay ambulance chaser .... so WHY do you chime-in on something you know ZIP about ? .... SAME THING you do every day !! ...  I will leave this into the hands of people like Eagle and the OEM ... that recommend specs well-uNder .020.
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Re: Eagle rotating assembly, rod side clearance question
[Re: 602heavy]
#811115
09/22/10 03:56 PM
09/22/10 03:56 PM
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Joined: Aug 2003
Posts: 43,195
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,195
Bend,OR USA
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Quote:
Some get confused regards rod side clearance , bearing clearance dictates how much oil is slung off , if we had zero bearing clearance & .060" rod clearance how much oil would get thrown off rod ends? 
 As already mentioned this subject has been beat to death, the rod side clearances do not determine how much oil is slung out of the bearings, the rod bearing to cranksaft clearances do  That has been proven time and time agian on dyno tests and at the track test as far as power and ET is concerned  theory is theory and results are results and results don't always back up theory 
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Eagle rotating assembly, rod side clearance question
[Re: BeEtLeJuIcE !]
#811116
09/22/10 04:25 PM
09/22/10 04:25 PM
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Joined: Jan 2003
Posts: 75,020
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,020
U.S.S.A.
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Quote:
Hay ambulance chaser .... so WHY do you chime-in on something you know ZIP about ? ....
SAME THING you do every day !! ...
I will leave this into the hands of people like Eagle and the OEM ... that recommend specs well-uNder .020.
I know alot more on this subject than you doc fiberASS.
Read the posts above me to see why it's really not as bad as some think. There is more oil coming off the camshaft from the huge oil passages and loose factory lifter bore clearnaces then there is from the added side clearance. Add a crank scraper if you are that concerned with some POSSIBLE extra oil.
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Re: Eagle rotating assembly, rod side clearance question
[Re: JohnRR]
#811117
09/22/10 04:43 PM
09/22/10 04:43 PM
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Joined: Jul 2008
Posts: 30,431
Florida STAYcation
BeEtLeJuIcE !
The village idiot's idiot
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The village idiot's idiot
Joined: Jul 2008
Posts: 30,431
Florida STAYcation
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Quote:
I know alot more on this subject than you doc fiberASS.
Read the posts above me to see why it's really not as bad as some think. There is more oil coming off the camshaft from the huge oil passages and loose factory lifter bore clearnaces then there is from the added side clearance. Add a crank scraper if you are that concerned with some POSSIBLE extra oil.
Hay ambulance chaser .... YOU saying what you do .... shows that you do NOT know what you are talking about ! .....
And I say again ... I will leave this into the hands of people like Eagle and the OEM ... that recommend specs well-uNder .020.
O R ...are you claiming that you-know-more than they do ?
IF THIS is your ASSertion ... THERE is a blow-hard topic recently HERE .. that you need to be posting on.
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Re: Eagle rotating assembly, rod side clearance question
[Re: 602heavy]
#811118
09/22/10 04:46 PM
09/22/10 04:46 PM
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Joined: Jul 2008
Posts: 30,431
Florida STAYcation
BeEtLeJuIcE !
The village idiot's idiot
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The village idiot's idiot
Joined: Jul 2008
Posts: 30,431
Florida STAYcation
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Quote:
Some get confused regards rod side clearance , bearing clearance dictates how much oil is slung off , if we had zero bearing clearance & .060" rod clearance how much oil would get thrown off rod ends?
I would TOTALLY agree ... bearing clearances have more effect on THIS .. than do RSC ... but all these-clearances are "leaks".
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Re: Eagle rotating assembly, rod side clearance question
[Re: BeEtLeJuIcE !]
#811119
09/22/10 05:28 PM
09/22/10 05:28 PM
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Joined: Apr 2008
Posts: 49
wi
crscuda
OP
member
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OP
member
Joined: Apr 2008
Posts: 49
wi
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Quote:
Quote:
This aint a new topic ( means less than a year old). I called Eagle on this and their recommendation was .016" I believe. I also thought that more clearance ment more oil slung on the cylinder walls. I was shown ( mathematically ) by a poster that I was wrong. Also heard from some members that they ran as much as .070" with no problems. It appears there are more issues with tight than with loose. Keep this in mind; the rods do jump from side to side as they travel up and down ( IMHO ).
BUT ... Eagle IS right and you were correct ! ... and the people who say it makes NO diff ...are uNcorrect !!
Is running fat clearance going to "hurt" your motor? ... Of course not .. but it will cost you power ... both in running your pump to an excess AND running the crank, rods and pistons THROUGH all that excess oil AND pulling that Xtra oil off the cylinder walls.
When I asked people at Eagle they said .030"-.035" was ideal not .016". That is why they trimmed the rod width .007". When purching this kit I did not know or even think the rsc would be anything other than oe spec.
Is this why you see mixed assemblies ie. eagle crank with manley rods to correct issues like this? If so will there be other issues with my eagle crank, eagle rods, dimond pistons kit to lookout for or tricks to improve it?
Just want to get this right so I can keep my friends in the rearview mirror. Thanks again...
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Re: Eagle rotating assembly, rod side clearance question
[Re: crscuda]
#811120
09/22/10 07:00 PM
09/22/10 07:00 PM
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Joined: Jul 2008
Posts: 30,431
Florida STAYcation
BeEtLeJuIcE !
The village idiot's idiot
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The village idiot's idiot
Joined: Jul 2008
Posts: 30,431
Florida STAYcation
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Quote:
When I asked people at Eagle they said .030"-.035" was ideal not .016".
So .... one person actually calls Eagle and they-say 16 is-the-plan ...and you call and they say OVER double-that ? .... ?? .... wassssupy ?
The FACTORY service manual says 9-17 .... did you ask why Eagle recommends OVER two-times what the factory says ?
And in keeping-your-friend in your rearview-mirror ? ... EVERY little-bit helps
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