Seeing more and more of these types of pistons.

[Rent Free]

JE Pistons Releases Lightweight Big Block Chevy FSR Pistons

Seems like a lot of manufactures are removing a lot of material from each side of the piston skirts to shave weight.

Besides the weight advantages, anyone note any real disadvantages to removing materials from the sides like this.

The material removed from the sides I wouldn't suspect to have much impact on the side loads of the pistons anyways.

Pretty interesting and surprised that hasn't been common practice for ages now.

Click to read more...

 

[SHARKBITEATTACK]

Wonder why their not 3D printed by now [emoji5]

 

[Turbocharged400sbc]

that sort of stuff has been commonplace in formula and fuel engines for a while now.... skirt loading is negligible with a low angularity engine so the reduced surface area doesn't mean much but it also allows for a shorter wrist pin since the main bulkheads of strength are closer towards the rods small end

 

[Rent Free]

Exactly trickle down tech that's just now getting to be coming for automakers.

 

[SHARKBITEATTACK]

Seems to me like it all comes down to cost. Up until the mid 2000's I felt like there were still alot of cars with forged internals stock. Now it seems everything is cast or powdered metal.

I would think that the pistons would be a prime location for any unneeded material to be removed from the rotating assembly. When you think about it, the fundemental design of the piston engine is flawed because the pistons have to keep changing directions and wasting energy in the process.

I have heard arguments before that you actually want a heavier crankshaft and flywheel for drag racing, but have never heard any advantages to a piston purely being heavier.

 

[Rent Free]

Never heard of the heavier crank theory only thing Ive seen is drilled, balanced, and knife edged.

 

[Ear Rak]

Pistons like that are typically used in NA applications. Most still use a piston with a lot more material and thicker ring lands in boosted/sprayed applications.

At least, thats what i've seen with mod motors. I imagine the theory still works across all engine types.

 

[Mr. SBF]

I have Ross pistons in one of our motors that look like that gas ported for nitrous.

 

[boostedguy05]

less material to clean out when one goes boom!

 

[Eagle]

Pistons like that are typically used in NA applications. Most still use a piston with a lot more material and thicker ring lands in boosted/sprayed applications.

At least, thats what i've seen with mod motors. I imagine the theory still works across all engine types.

Looks like decent ring lands to me

Just NO side skirts.

I'm a little more shocked that the design doesn't require some kind of crazy coating to increase longevity in a performance engine.

 

[Ear Rak]

Looks like decent ring lands to me

Just NO side skirts.

I'm a little more shocked that the design doesn't require some kind of crazy coating to increase longevity in a performance engine.

Touche. I looked closer after I posted. But still, from what I've seen, most boosted guys go with a piston with more meat to it. I don't know if its just old school thinking or proven results, but if it works it works.

 

[Eagle]

The Wiseco pistons I had in the TA that were custom ordered for my boosted application looked very much like the pictured pistons... but they were coated.