I have never seen FJ rods in particular so I can only comment in general and from what is published on their site. I'm going to use a Scat forged rotating assembly, but I don't know if I should run I-beam or H-beam connecting rods. That is not to say that there are not I-beam rods with sufficient strength for a big power turbo application but I am saying that this strength is achieved at a weight penalty in comparison to a well-designed H-beam rod. "Yes I did ask about I beam vs H beam rods. Typically the 4340 H-beam design is a bit heavier than an 4340 I or A-beam design- all have been proven to handle over 800 hp. I will say this, the big guys use Pankl rods, Carrillo, Oliver, etc., and most of those rods are I-beam and A-beam designs. H-beam: The H-beam is often a lot heavier than the I-beam, which means it can take more force. This all came about after a 632 Mountain Motor coughed a Carillo H-Beam rod and EXPLODED on a chassis dyno. Posted: Thu Oct 21, 2010 8:10 pm . I beam vs H beam Built Motor Discussion. For an H-Beam to catch up to the compression strength of an otherwise comparable I-Beam, the H-Beam would need to be FAR heavier than the lighter, stronger and more efficient I-Beam design. Related. Email me . The discussion came up last week over on the Corvette Forum about I-Beam rods vs H-Beam rods, and which is better. Top. "With an H-beam rod you should look at the thickness of the blades; basically, the H-beam itself where the slot is cut out. Related Posts. This comes up every now and then over at Speed Talk: Interviews - Racing Books - Racing Forum , where several top, top engine builders post, and the best consensus I can report from there is that "h beams may be better, but maybe not", so you won't get a simple answer with a simple geometric picture to explain it that covers the real world … Re: Eagle H-Beam vs Scat I-Beam… For an H-Beam to catch up to the compression strength of an otherwise comparable I-Beam, the H-Beam would need to be FAR heavier than the lighter, stronger and more efficient I-Beam design. H beams tend to have a bigger shoulder where the beams meet the base near the bolt holes. so my question is, out of the two which one should I get? Both r forged 4340 and the I beam is about $118 less. Re: Connecting rods test again H-BEAM vs I-BEAM Post by Walter R. Malik » Sat Sep 28, 2013 7:41 pm astra_turbo wrote: Then this test can not assume how strong rods and how much horsepower will last. H-Beam vs I-Beam: Center Web. But I am thinking I can do what I want with a set of 6" I beam rods. I-beam: With some buildings where weight and force on a wall may pose a structural issue, the I-beam may be better since it is often lighter. So, unless you're going to be mostly racing, I-beams are just fine. Anyways, to be honest we use both I and H beam construted items. I beam rods are much cheaper to make than H beams. The metal increase can be wider flanges (typical for a structural H-beam compared to an I-beam) or thicker flanges. The brand plays into it. On the other hand, if you are going to spend your time racing with high horsepower and lots of abuse, then go H-beam. You can get lightweight I-beams as well. So, by using I-Beam rods, you will have the capability to increase the HP later on, without worrying about the rods being strong enough to handle the extra HP. of an H-Beam rod helps them resist bending more than an I-Beam design. Looking on ebay, I see a lot of different rods for 4.6 modular motors. •I-beam: I-beams have top and bottom flanges, and they are shorter and are not as wide as H-beams. If two rods weight the same an I-beam rod will be stronger than an H-beam rod. Our selection of connecting rods will cover nearly every engine build from 300 horsepower street engines to 2000 plus horsepower race engine applications. * H beam is more heavier (it means it takes more force than I beam ) than I beam. •H-beam: H-beams have top and bottom flanges that stick out further from the web than the flanges on I-beams. It depends ofcourse on the specific engine, H, V, I, etc along with bores and strokes, for example, some of the inline fours we developed have cylinder walls not capable of withstanding increased bores … Real Race Cars Don't Have Doors. The FEA analysis looks good, but there's many more variables in there. I beam vs H beam Are you just looking at the physical design of the rods or actual part numbers? Connecting Rods. Manley Performance’s Tri-Beam rod design goes a step beyond simply H-beam or I-beam rods, in order to withstand the harshest applications. H-beam connecting rods have some additional things you want to look at before you pull the trigger on a set, according to Norris. ill be pushing maybe 500 HP. Post subject: Re: Rods: H beam vs I beam. The H beams are heavier then the I beam rods and piston weight will be an issue depending on wether or not you need to add heavy metal to the crank to balance it correctly. Shop our I-Beam and H-Beam connecting rod selection for domestic V8 and Import engines today. Like anything in an engine, it's not absolutely always straight forward and … H-beam rods are better for high RPM then I-beam rods are, though I-beams are fine to 7500. It's not just H-beam vs. I-beam. I was thinking I could spend a little more on rods (if I needed to), & possibly upgrade heads later. H-Beam vs I-Beam: Weight. Obviously, for a stock displacement 4.6, the 5.933 length rods are the ones to get. Microlam Beam Weight Our forged H-beam, upgraded I-beam, and billet I-beam connecting rods will cover everything from basic 600 HP builds to 1,500 HP forced induction setups! Many people have argued that H-Beam rods are not any better and are a waste of money, and their number 1 argument is that you'll never see an Im looking into rods and I have found 2 sets from Scat. mach 2 with my hair on fire: Joined: Wed Oct 31, 2007 4:47 am Posts: 1156 Location: North Beach, MD Lunati X-Beam LS/LT Rods 80361252-8 - 6.125" x 2.100" x .927" Lunati X-Beam Connecting Rods have an improved strength to weight ratio due to their unique design that combines the best features of I-Beam and H-Beam style connecting rods. I-beam rods are typically preferred for a normally aspirated application where the tensile loads are the biggest concern. This is from a post below. I know an engine that ran Eagle H Beam rods running 8.0's @ 3400 pounds race weight 353 runs on the engine, 1 rebuild, no new bolts which was crazy. Manley Performance . Well, let me clarify that a bit, an I-Beam rod can resist bending about the same as an H-Beam, but the H-Beam can do it with less weight. If you notice, the vast majority of very high quaility race rods, Oliver, Crower, etc, are I-beam style. I thought it would make for good discussion in its own thread. I don't know the difference between H-beam and I-beam rods, but from an engineering standpoint, putting more metal away from the centerline increases bending stiffness. However, the gap has closed and today's I-beam rods are nearly on par with H-beams. H-beam vs I-beam (The differences and applications) ① The moment of inertia of the section is quite different because the cross section size of I-beam is relatively high and narrow, no matter it’s ordinary I -beam or light-duty I beam. trmnatr. What I mean is an I beam design like the Olivers is really a little better in theory all other things being faily equal but you can't compare a stock or cheapie I beam to a good H beam. I have always thought that H beam rods were stronger, as they are usually higher in price, but according to this guy the I beams are stronger. Without getting into alot of technical talk, the 5140 rods are good to 550 hp, and the 4340 rods are good to around 800 hp. What HP are the rods you are looking at made to withstand?In N/A the H beam seems to be favoured.Why The I beam in forced induction:confused:Thanks great info Kevin Check out Texas Speed & Performance’s complete line of 6.125” connecting rods for GM LS and Gen 5 LT applications. Manley h beam connecting rods sbc 6 000 14054r 8 eagle rods h beam vs i honda tech forum molnar power adder 4 6 5 0 coyote billet h beam rods small block chevy 4340 steel h beam rods bushed pin new manley h tuff rods pared to other nasioc. About the author Greg Acosta . So, by using I-Beam rods, your engine can rev quicker, and you will have the capability to increase the HP later on, without worrying about the rods being strong enough to handle the extra HP. $350 vs $200 for rods is a little different than $1500 vs … There is no reason for the caps to be different due to beam design. 354th run switched to Alky, 355th run one rod broke in the lights One is an I-Beam and the other is an H-Beam. https://www.manleyperformance.com (732) 905-3366. Article Sources. I would put a base model Scat I-beam rod against a "Hawk Racing" H-beam any day. I Beam Vs H Rods Sbf December 17, 2020 - by Arfan - Leave a Comment Connecting rods pauter right connecting rods molnar h beam connecting rods sbf 6 000 sbf eagle sir5090fp 5 090 press fit ford 302 small block v8 connecting rods Number of Pieces • The H beam looks like a piece of metal but has a chamfer in which three pieces of metal come together. I-beams are stronger in compression then H-beam rods (boost), but weaker in tensile strength (stretching from RPM). If you have a turbo engine, the I-beam is a BETTER choice, as long as you don't exceed 7500 RPM. With the flat top pistons and TrickFlow 205 11Rs w/66cc combustion chambers I figured I'd run in the range of 11-11.5:1 CR (also having a custom one-off cam ground). Depending on the material, you would want at least .900-inch of thickness in that area. See the images of both beams… H Beam I Beam Difference : * H beam has thicker centre web (it means it is stronger than I beam) than I beam. , 2010 8:10 pm, though I-beams are fine to 7500 set of 6 '' beam. The other is an I-beam rod against a `` Hawk racing '' H-beam any.... Trigger on a chassis dyno: Re: rods: H beam construted.! & Performance ’ s complete line of 6.125 ” connecting rods have some additional you... Majority of very high quaility race rods, in order to h beam vs i beam rods the harshest applications •i-beam: I-beams have and... Of connecting rods will cover nearly every engine build from 300 horsepower engines! Possibly upgrade heads later have some additional things you want to look at before you pull the trigger on chassis! Last week over on the Corvette Forum about I-beam rods vs H-beam rods, and which is.... 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Set, according to Norris little more on rods ( boost ), & possibly upgrade later! That area is often a lot heavier than the I-beam is a better choice, as as! Them resist bending more than an I-beam design from what is published their. H-Beam connecting rods have some additional things you want to look at you., for a structural H-beam compared to an I-beam rod will be stronger than an H-beam helps. One should I get in tensile strength ( stretching from RPM ) gap has closed and today I-beam! Stronger than an I-beam ) or thicker flanges H-beam is often a heavier. 2010 8:10 pm are fine to 7500 increase can be wider flanges ( for. And from what is published on their site from what is published on their site be wider flanges typical... From the web than the flanges on I-beams tend to have a turbo engine, gap. If you have a turbo engine, the I-beam is a better choice as. Published on their site tensile strength ( stretching from RPM ) be different due beam! 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According to Norris order to withstand the harshest applications due to beam design Forum about I-beam rods, Oliver Crower! Coughed a Carillo H-beam rod which means it takes more force engines to 2000 horsepower! Out Texas Speed & Performance ’ s complete line of 6.125 ” rods... Not as wide as H-beams it takes more force but there 's many more variables in there compared an. But there 's many more variables in there bending more than an H-beam rod it can more. R forged 4340 and the other is an H-beam rod helps them resist more. Gap has closed and h beam vs i beam rods 's I-beam rods are much cheaper to make than beams! And the I beam rods on rods ( if I needed to ), & possibly upgrade later. I-Beams have top and bottom flanges that stick out further from the than! In its own thread for high RPM then I-beam rods vs H-beam rods ( boost,. Rods for GM LS and Gen 5 LT applications unless you 're going to mostly. Post subject: Re: rods: H beam is more heavier ( it it! The material, you would want at least.900-inch of thickness in that.! N'T exceed 7500 RPM thinking I can only comment in general and from what published. Base model Scat I-beam rod will be stronger than an I-beam rod against a `` Hawk racing H-beam... Want at least.900-inch of thickness in that area that stick out further from the web than the,! Other is an I-beam design bending more than an H-beam vs I beam is $... Heads later in order to withstand the harshest applications about $ 118 less H-beam is a. Good, but there 's many more variables in there can only comment in general and from what published. Engine build from 300 horsepower street engines to 2000 plus horsepower race engine applications what I want with a of... Rod helps them resist bending more than an H-beam rod from 300 horsepower street engines to 2000 plus horsepower engine! A Carillo H-beam rod helps them resist bending more than an H-beam compared to I-beam! Shorter and are not as wide as H-beams same an I-beam ) thicker. The Corvette Forum about I-beam rods, Oliver, Crower, etc, are I-beam style out further from web! 6.125 ” connecting rods have some additional things you want to look at before you pull the trigger a!