Aftermarket connecting rods?

[Darbshaw]

I'm surprised no one has mentioned MaXpeeding 😂
I'd love to see something like that survive a 600hp engine. I really think they would.

Hate to be that guy for you but I have been seriously contemplating trying these out as I’m currently in the process of rebuilding.
Debating between this or molnar rods and honestly I really don’t see why they wouldn’t work. Every other community has good experiences with them


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[SteelGreyM]

SteelGreyM:

Did you ever weigh your pistons and rods? Inquiring mind(s) want to know. 🤑

Feff

I have not. Sorry. Last time I was at the machine shop I was in a major rush and forgot to ask them. Rest assured, it will get done. Probably by the end of this week.

[Arith2]

I'm surprised no one has mentioned MaXpeeding 😂
I'd love to see something like that survive a 600hp engine. I really think they would.

[Feffman]

I'll weigh my CP pistons and rods sometime this week when i''m at the machine shop. I ended up going with molnar rods both off of recommendations by you guys and my machine shop.

SteelGreyM:

Did you ever weigh your pistons and rods? Inquiring mind(s) want to know. 🤑

Feff

[digger]

I'll weigh my CP pistons and rods sometime this week when i''m at the machine shop. I ended up going with molnar rods both off of recommendations by you guys and my machine shop.

Molnar are a good choice, the money you save can be spent on things that actually make power

[SteelGreyM]

My research for the race car led me to these weights, in grams, on forged rods and pistons that I could find information on. Stock S54 rods are 632 grams and stock pistons are 470 grams.

Forged Rods
CP-Carrillo: 491
Pauter: 483
Arrow-Precision: 567
Supertech: 532

Forged Pistons
JE Pistons: 330
Mahle: 357
Wiseco: 370
Wossner: 316
Supertech: 306
CP-Carrillo: Surprisingly, couldn't get weight figure

Using CP-Carrillo rods and JE Pistons instead of stock saves 1,686 grams, or the weight of 1 1/3 rods and 2 1/2 pistons. I'm sure there are other rods/pistons out there, but these are those I'm willing to spend money on for my internals.

Feff

I'll weigh my CP pistons and rods sometime this week when i''m at the machine shop. I ended up going with molnar rods both off of recommendations by you guys and my machine shop.

[Feffman]

My research for the race car led me to these weights, in grams, on forged rods and pistons that I could find information on. Stock S54 rods are 632 grams and stock pistons are 470 grams.

Forged Rods
CP-Carrillo: 491
Pauter: 483
Arrow-Precision: 567
Supertech: 532

Forged Pistons
JE Pistons: 330
Mahle: 357
Wiseco: 370
Wossner: 316
Supertech: 306
CP-Carrillo: Surprisingly, couldn't get weight figure

Using CP-Carrillo rods and JE Pistons instead of stock saves 1,686 grams, or the weight of 1 1/3 rods and 2 1/2 pistons. I'm sure there are other rods/pistons out there, but these are those I'm willing to spend money on for my internals.

Feff

[ClevoCapri]

Why do you say that? The whole point of me upgrading now is so that I *dont* have to go back inside the engine later[/QUOTE]


Lower comp you can run more boost and more ignition timing. Run pump fuel. If you keep the comp standard and you want to start chasing power you may struggle adding boost without race fuel or pulling ignition timing out.

[digger]

I dont plan on exceeding 600whp. My engine builder said that he could get me the boost line rods with ARP2000 bolts for $820 so I think this is almost a done deal. Only thing stopping me from getting them is the fact that I haven't seen any other s54s using these boost line rods. Then again wiseco has been in this business a long time and they wouldn't have earned the reputation they have if they were doing something wrong.



Why do you say that? The whole point of me upgrading now is so that I *dont* have to go back inside the engine later

The wiseco rods are just I-beam rods with some marketing bs thrown in. Any of the name brand aftermarket will be fine

[Mspir3d]

Unless you live somewhere with a lot of e85. My built motor still has high compression. The stock engine made over 700whp last year before I pulled it. Rods and pistons all looked fine when I took it apart.

[SteelGreyM]

I would think you would want a lower compression piston when boosting, and higher with NA????

Yes..

[Flat-Six]

I dont plan on exceeding 600whp. My engine builder said that he could get me the boost line rods with ARP2000 bolts for $820 so I think this is almost a done deal. Only thing stopping me from getting them is the fact that I haven't seen any other s54s using these boost line rods. Then again wiseco has been in this business a long time and they wouldn't have earned the reputation they have if they were doing something wrong.



Why do you say that? The whole point of me upgrading now is so that I *dont* have to go back inside the engine later

I would think you would want a lower compression piston when boosting, and higher with NA????

[SteelGreyM]

I've also gone with Molnar H-Beam 4340 lightweight rods. If you plan on exceeding 600whp, I would opt to pay just a few hundred more for Wiseco Boostline rods; hybrid between I and H beam, they can handle well over 1000hp. If you plan on NA power levels, Molnar H-beams are great value. Mine were balanced within 2g or less of each other out of the box.

I dont plan on exceeding 600whp. My engine builder said that he could get me the boost line rods with ARP2000 bolts for $820 so I think this is almost a done deal. Only thing stopping me from getting them is the fact that I haven't seen any other s54s using these boost line rods. Then again wiseco has been in this business a long time and they wouldn't have earned the reputation they have if they were doing something wrong.

If your going to boost in a few years stick with the factory rod for now and change out to a rod/piston setup to work with boost later.

Why do you say that? The whole point of me upgrading now is so that I *dont* have to go back inside the engine later

[bavmotorwerkz]

I used molnar

I've also gone with Molnar H-Beam 4340 lightweight rods. If you plan on exceeding 600whp, I would opt to pay just a few hundred more for Wiseco Boostline rods; hybrid between I and H beam, they can handle well over 1000hp. If you plan on NA power levels, Molnar H-beams are great value. Mine were balanced within 2g or less of each other out of the box.

[ClevoCapri]

If your going to boost in a few years stick with the factory rod for now and change out to a rod/piston setup to work with boost later.