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Re: Scat or Eagle for I beam rods
[Re: HotRodDave]
#1642449
07/07/14 07:55 PM
07/07/14 07:55 PM
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Joined: Jan 2003
Posts: 32,394
Quicktree
I Win
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I Win
Joined: Jan 2003
Posts: 32,394
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Quote:
I don't think anyone is saying the SCAT I beam is stronger than the SCAT H beam. What we are saying is the SCAT I beam is cheaper and better than re-doing the stock rods witch are very strong, just heavy and not as strong as the SCAT I beam. The eagle I beam is worse than a stock rod, they look like the were made by Burt Monroe in his shed out of old buick parts melted down, only he would have probably made them better than Eagle.
bullcrap I was just told they were stronger.
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Re: Scat or Eagle for I beam rods
[Re: pittsburghracer]
#1642451
07/07/14 08:36 PM
07/07/14 08:36 PM
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Joined: Nov 2004
Posts: 3,544
Syracuse,NY
CompWedgeEngines
master
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master
Joined: Nov 2004
Posts: 3,544
Syracuse,NY
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I wonder why 440source quit selling their I beem rods.  
The 440 Source I beam rods were not made by Scat.
As a general comment,I have a ton of Scat I beam rod motors out there without failure. The Pro Comp rod is a favorite amongst Chevy guys,both big block and small block. The circle track guys beat the crap out of them,way worse than most of the drag and street engines on here ever thought of. They really are a good little rod. They offer 7/16 bolt upgrade,and because of their lite weight,they take a good beating.Carry on.
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: Scat or Eagle for I beam rods
[Re: CompWedgeEngines]
#1642452
07/07/14 08:56 PM
07/07/14 08:56 PM
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Joined: Jan 2003
Posts: 11,724
Portage,michigan
B3422W5
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 11,724
Portage,michigan
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Have done a lot of Internet reading about rods today....... Conclusion: both I beam and H beam rods are run in ultra high output stuff. Different manufacturers carry one or the other or both .
Going BACK again to MY initial comment, the Scat 4340 I beam is a better rod than the 5140 Eagle SIR rod.
The Scats are in the motor I am installing and shouldn't be a factor at the power level I will make. If I thought they were I wouldn't have bought the motor.
I ran Eagle H beams( 4340) arrow billet rods, and compstars in previous engines.... All made more power.
Is a Scat I beam a trick rod.... No... But it's not because of its I beam design.
Manley's top shelf stuff is I beam
The Scat rods with an ultralight spinning assy at 6500rpm and at or under 500 horse should be fine
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: Scat or Eagle for I beam rods
[Re: rickstershemi]
#1642454
07/07/14 09:05 PM
07/07/14 09:05 PM
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Joined: Jan 2003
Posts: 32,394
Quicktree
I Win
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I Win
Joined: Jan 2003
Posts: 32,394
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Quote:
Quote:
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I don't think anyone is saying the SCAT I beam is stronger than the SCAT H beam. What we are saying is the SCAT I beam is cheaper and better than re-doing the stock rods witch are very strong, just heavy and not as strong as the SCAT I beam. The eagle I beam is worse than a stock rod, they look like the were made by Burt Monroe in his shed out of old buick parts melted down, only he would have probably made them better than Eagle.
bullcrap I was just told they were stronger.
A lot of back-stepping going on here. Where's that Ricksterhemi guy at. I wouldn't put a procomp distributor in my car let alone their rods. 
Ricksters right here and he never said or agreed that I-Beams are Strnoger than H-Beams so don't try and say I did.....all I said was that for my build H-Beams weren't needed and I'll stand by that....The Scat I-Beams in my build are hang'n strong as per my engine builders suggestion and if you've never heard of "Mike Thompson Racing Engines" out of Naples....just go to any track in the south and you will most likely find several at any venue 
You two might want to look into reading comprehension classes
Not to mention Mike was the National Top Sportsman Champion a cple of years ago in IHRA running his N/A 605 BB Chevy
Rickster
ok then please point out what part of this is wrong?
about as hard headed as you let me make myself as clear as I can. AGAIN in high quality parts such as oliver etc the I beam is stronger and the preferred choice. now here we are talking cheap chinese crap like eagle scat etc, imo (this is my opinion nothing more) the H beam is a better rod. ask yourself which one is the cheapest? now why would the I beam be better? I wouldn't give you a plug nickel for a scat or eagle I beam. now you can try to convince yourself they are great rods sense you just bought one if you like I really hope it lasts you a long time and I am wrong.
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Re: Scat or Eagle for I beam rods
[Re: B3422W5]
#1642455
07/07/14 09:09 PM
07/07/14 09:09 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 run Eagle H-beams in all my engines.. BUT as I said before.. these are OLD H-beams and back when I bought them they looked great and even measured good.. but I believe that their quality went down hill in the past years.. you hear of people breaking lots of Eagle stuff now days... on my junk those old H-beams have been to 9600 rpm.. not on a regular basis but its been more than a few times... I dont know what I would buy now days but it would be a H-beam.. BUT thats just me... years ago I also broke a Manley I-beam but I can break ANYTHING 
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Re: Scat or Eagle for I beam rods
[Re: Quicktree]
#1642456
07/07/14 09:16 PM
07/07/14 09:16 PM
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Joined: Jul 2006
Posts: 9,366
Lehigh Acres, Florida
rickstershemi
master
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master
Joined: Jul 2006
Posts: 9,366
Lehigh Acres, Florida
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I don't think anyone is saying the SCAT I beam is stronger than the SCAT H beam. What we are saying is the SCAT I beam is cheaper and better than re-doing the stock rods witch are very strong, just heavy and not as strong as the SCAT I beam. The eagle I beam is worse than a stock rod, they look like the were made by Burt Monroe in his shed out of old buick parts melted down, only he would have probably made them better than Eagle.
bullcrap I was just told they were stronger.
A lot of back-stepping going on here. Where's that Ricksterhemi guy at. I wouldn't put a procomp distributor in my car let alone their rods.
Ricksters right here and he never said or agreed that I-Beams are Strnoger than H-Beams so don't try and say I did.....all I said was that for my build H-Beams weren't needed and I'll stand by that....The Scat I-Beams in my build are hang'n strong as per my engine builders suggestion and if you've never heard of "Mike Thompson Racing Engines" out of Naples....just go to any track in the south and you will most likely find several at any venue
You two might want to look into reading comprehension classes
Not to mention Mike was the National Top Sportsman Champion a cple of years ago in IHRA running his N/A 605 BB Chevy
Rickster
ok then please point out what part of this is wrong?
about as hard headed as you let me make myself as clear as I can. AGAIN in high quality parts such as oliver etc the I beam is stronger and the preferred choice. now here we are talking cheap chinese crap like eagle scat etc, imo (this is my opinion nothing more) the H beam is a better rod. ask yourself which one is the cheapest? now why would the I beam be better? I wouldn't give you a plug nickel for a scat or eagle I beam. now you can try to convince yourself they are great rods sense you just bought one if you like I really hope it lasts you a long time and I am wrong.
Hey Einstein.... "basic 340 rebuild" Does this ring a bell
Done here....carry on 
Rickster
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Re: Scat or Eagle for I beam rods
[Re: HotRodDave]
#1642460
07/07/14 10:31 PM
07/07/14 10:31 PM
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Joined: Jan 2003
Posts: 32,394
Quicktree
I Win
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I Win
Joined: Jan 2003
Posts: 32,394
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Quote:
You know I got to thinking " if SCAT I beam rods break there should be some pics on google". Well after looking through 1000s of pics I can not find a broken SCAT I beam on google. Plenty of busted Eagle SIRs though 
heck yea, a $300 bullet proof rod. I am in 
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Re: Scat or Eagle for I beam rods
[Re: cudadoug]
#1642463
07/08/14 11:07 AM
07/08/14 11:07 AM
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Joined: Nov 2004
Posts: 3,544
Syracuse,NY
CompWedgeEngines
master
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master
Joined: Nov 2004
Posts: 3,544
Syracuse,NY
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I think after reading this, I'm gonna need some JIM BEAM....holy cow..... 
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: Scat or Eagle for I beam rods
[Re: MR_P_BODY]
#1642464
07/08/14 11:40 AM
07/08/14 11:40 AM
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Joined: Feb 2004
Posts: 2,073
Tulsa, Ok
WadeMetzinger
top fuel
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top fuel
Joined: Feb 2004
Posts: 2,073
Tulsa, Ok
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I'm in the process if building a 500+ HP 416 and I'm going to use one of SCAT's rotating assemblies. I ordered the forged kit and they use to come with the H beam rods but they now come with the I-beam rods, forged crank and ICON pistons. I did some research and spoke to some Mopar engine builder and they said the I-beams are good rods but over 500hp they would tend to use the H-beams so I sent the first one back and got the kit with H-beams. There wasn't much differance in the price and most of the cost was because Mallory had to be added for the H-beams.
So what I leaned from the builder I spoke to is the if your shooting to 500hp or below for racing or under 600 on the street the I-beams will work just fine. I was told the I-beams are forged and the H-beams are billet rods.
Here are some picture of both SCAT rods.
Wade Metzinger 918-809-0987 71 Cuda 9.28@145 -1s, Pglide 68 Cuda 10.64@124 1.45 60's 318->390 eddys Moparts discount code on WIX - moparts www.Filter1.com
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Re: Scat or Eagle for I beam rods
[Re: rickstershemi]
#1642468
07/08/14 12:29 PM
07/08/14 12:29 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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Quote:
I think Rickster is on the right track, but I think he needs to calculate the moments of inertia for Iyy in addition to Ixx that he did. I had this discussion with a friend in Tampa about which plane you think has the highest stresses/loads. If the piston is not centered on the rod, then maybe the H-beam looks more attractive? I never did the calculations for a rod, but I ran a similar analysis on a rocker arm design since I think they put the slot in the top (remnants of the Shivy ball stud arrangement) instead of more like the Chrysler forged rocker arms. The top slot did a lot better than I thought it would and actually was slightly better than the I-beam design.
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