Rods for 1k+ RWHP
TECH Enthusiast
Joined: May 2010
Posts: 558
Likes: 1
Stock powdered metal rods seem to be fine over 1000 hp at the flywheel (famous 4.8 hot rod article is my source lol) as long as you don't spin the **** out of them, so why wouldn't a forged rod be even better?
Most non-billet rod manufacturers use the same blanks for their rods from what I hear anyways.
Most non-billet rod manufacturers use the same blanks for their rods from what I hear anyways.
Stock powdered metal rods seem to be fine over 1000 hp at the flywheel (famous 4.8 hot rod article is my source lol) as long as you don't spin the **** out of them, so why wouldn't a forged rod be even better?
Most non-billet rod manufacturers use the same blanks for their rods from what I hear anyways.
Most non-billet rod manufacturers use the same blanks for their rods from what I hear anyways.
All I know is that for the price the Eagle rods have done me no wrong. My next block will for sure have Oliver billet rods. But when I built my motor those were the best I could get for the money and I have had 0 Issues with them. The only other reason why I would not run alluminum rods is because they tend to stretch after a certain amount of runs or strain on the motor. So take it for what its worth. Unless you are really trying to cut the weight down from your rotating assembly I would just stick to some nice 4340 Forged Steel rods.
TECH Enthusiast
Joined: May 2010
Posts: 558
Likes: 1
Comparing eagle to compstar to lunati to k1 with the same forged h beam design and same rod bolts is a waste of time though. I don't think it matters either way, especially at 1000hp where some engines have apparently survived with crappy PM rods. Just saying.
That $1500 extra you spend on billet rods isn't making you more power or really even giving you a more bullet proof motor because at 1000hp, forged rods are pretty much not the weak point. At 1500hp+, definitely get the fancy ones though.
Ok so I guess I should lay out the rest of my build so everyone can see the other components I will be running. First let me say that I am not someone with a unlimited budget that can just throw money at fancy components. I will spend $1500 on a set of rods if they are needed but for me that means that is $1500 to put into the rest of the car for supporting componests. The motor will be a 4.125 bore 4" stroke 427 with an RHS block. Crank and pistons will be Callies Dragonslayer and Wiseco pistons. Heads will be PRC Ls7 285cc with titanium intake and ss exhaust. So with that level of components in mind what rods sound like they are best? I guess I should also mention that is will be 1000rwhp so you can figure somewhere between 1200-1300 at the crank and it will be supercharged.
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I think there are several X275 LS turbo motors going together right now with those Callies XD I beam rods. I think you will be fine with them without having to step to a billet piece. If you do go billet, BME, Olliver, Callies, Lunati, Carillo($$$) etc. are all good to choose from.
Erik at hke built my engine. And he's built a lot of ls engines. When I said I wanted a solid 1000 wheel (1200 flywheel) he said my limiting factor will be the tune with pushing water. And he said it will take a good bit of power to lift the heads with the arp studs, tfs heads and ls9 gaskets. He used callies compstars in mine.
I fix forklifts for a living, I had a call at this place http://www.rrconnectingrods.com/stee...teel-rods.html
The shop is amazing, they gave me tour of the place I could not believe their quality. I have no idea how much anything is, but after talking to Mike he explained the differences in steel quality, treating, and the machining. Just an unbelievable amount of knowledge. Its almost a shame to put the rods in an engine and never be able to show anyone what they do.
The shop is amazing, they gave me tour of the place I could not believe their quality. I have no idea how much anything is, but after talking to Mike he explained the differences in steel quality, treating, and the machining. Just an unbelievable amount of knowledge. Its almost a shame to put the rods in an engine and never be able to show anyone what they do.
Launching!
Joined: Feb 2005
Posts: 266
Likes: 0
From: Woodlands,TX
Decisions decisions.... Part of me wants to just go with a Eagle rods and save some money but part of me feels like at this level I should step up to a Lunati or Callies rod.