Molybednum coated pistons

spetz · Post by **spetz** » Wed Mar 29, 2006 3:22 pm

Is this worth doing?
It is $50 per piston, so $300 for all 6.

Anyone have any idea of weather I should do it or not?

BuCkEt · Post by **BuCkEt** » Wed Mar 29, 2006 7:01 pm

Do it.

Just to say you did.

SG · Post by SG » Thu Mar 30, 2006 3:04 pm

google says it reduces picton friction for economy and u might get less wear at high rpw... and it also has a higher melting point if you race a lot compared to normal metal

http://paultan.org/archives/2006/03/13/ ... ec-engine/

spetz · Post by **spetz** » Thu Mar 30, 2006 9:12 pm

I'm not doing it just so I can tell people I've done it!

And, I just not sure if $300 is worth it.
The rods ae shotpeened so maybe I should do something to the pistons as well?

hmm... I'll take my mechanics suggestions...

bigpitty1 · Post by **bigpitty1** » Fri Mar 31, 2006 2:05 pm

I would go for it, sorta sounds the same as having ceramic coated pistons, sounds like a good idea.

spetz · Post by **spetz** » Fri Mar 31, 2006 2:17 pm

it's the same coating that Civic Type R and Integra Type R have standard.

That's why they advertise "low friction pistons"

Post by **Bennoz** » Fri Mar 31, 2006 2:22 pm

Which has always befuddled me cause at no time does any part of the piston touch the bore...

Admittedly it is good for keeping carbon build up off the piston & ensuring the oil splashed onto it gets back down into the sump quick smart.

Pretty high end stuff though. You'd be talking decimal point kw gains as opposed to ones or twos. More of a longevity assurance.

Nacho · Post by **Nacho** » Fri Mar 31, 2006 2:39 pm

Lube them up a bit and then roll them around in the mud and they'll become Molymeldrum pistons!

Post by **Bennoz** » Fri Mar 31, 2006 3:49 pm

Nacho wrote:Lube them up a bit and then roll them around in the mud and they'll become Molymeldrum pistons!

No mate - Thorpedos

Nacho · Post by **Nacho** » Fri Mar 31, 2006 4:59 pm

Does Thorpie work at the fudge factory as a packer does he?

If he does I can't believe I didn't know!

spetz · Post by **spetz** » Sat Apr 01, 2006 12:55 am

Don't the piston skirts touch the cylinder bore?

Post by **Bennoz** » Sat Apr 01, 2006 9:11 am

Nope, only the pistong rings touch the bore

Here's a good cross sectional piccy. There usually a few rings, a compression ring, an oil scraper ring etc. Different motors it varies.

SG · Post by SG » Sun Apr 02, 2006 12:46 am

u can also bead-blast pistons for less friction, and to make em look a bit like a washer has been inside the cylinder...
i think the aim is for less oil friction against the cylinder bore, or for the pistons to have a better relationship with the oil or something...