Hypereutectic Pistons
Hypereutectic Pistons
Where are some places I can get a set of hypereutectic pistons?
4G63 SOHC
Any idea on how much they cost???
:beer
4G63 SOHC
Any idea on how much they cost???
:beer
- fr335tyl3r
- I'm Sorta Reformed!
- Posts: 2073
- Joined: Tue Apr 13, 2004 3:07 am
- Location: Baulkham Hills, NSW
Alloys.
Hypereutectic alloys have what some feel are superior qualities to many of the alloys used in cast piston construction (ie, Stockies. ).
eg,
http://www.kb-silvolite.com/article.php ... ead&A_id=2
While the benefit they provide is not always agreed upon, they are typically considered to be better than cheap cast alloy pistons, but not as good as forged.
Many people who rebuild their engines choose them... They are supposed to be less prone to failure than normal pistons.
David.
eg,
http://www.kb-silvolite.com/article.php ... ead&A_id=2
While the benefit they provide is not always agreed upon, they are typically considered to be better than cheap cast alloy pistons, but not as good as forged.
Many people who rebuild their engines choose them... They are supposed to be less prone to failure than normal pistons.
David.
- cheaterparts
- I love starions
- Posts: 351
- Joined: Mon Sep 27, 2004 7:36 pm
- Location: melbourne aust
pistons
hyper pistons also have an expantion rate close to cast so can be fitted with closer tolerances then forged pistons
cheaterparts
cheaterparts
based on what I've seen in the states, I wouldn't go near those pistons. TOOOOO many horror stories! They actually call them hyper-regret-its. Even tho they're $17-25usd each, they can keep em. The starquest guys use pistons made Silvolite - they may sound good on paper, and work well in an atmo application, but the rate of turbo motor piston failures are alarming.
The stock pistons should be very good huh ? Has anybody pushed 'em to the limit. If they're anything like quality of the vr4 pistons (and they should be close at least), then thats all the piston you could ever want in a street motor. Guys have made incredible power, running 30+psi on stock dsm. One tough little sucker. If you have the option of going with vr4 pistons, I'd definitely go that route.
The stock pistons should be very good huh ? Has anybody pushed 'em to the limit. If they're anything like quality of the vr4 pistons (and they should be close at least), then thats all the piston you could ever want in a street motor. Guys have made incredible power, running 30+psi on stock dsm. One tough little sucker. If you have the option of going with vr4 pistons, I'd definitely go that route.
I got hypertectic pistons and i think their fine I have run up to 18psi with a high flowed tc06 and with my timing and tuning it works well, I have to run atleast 98 octane fuel and on track days I use a bottle of octance boost. I would tell you the stuff but i can't remember the name as i only look for the bottle colour, but this brand pushes the octane rating up by 7 numbers
Cheers
Cheers
???
Seven numbers???
Like a Million Octane?
Wouldn't that be like water??? You'd need to use a thermonuclear detonation to ignite it!!!
But if you've found a decent octane booster that's not crap (and I don't mean at keeping off pinging - I'm talking about fouling plugs too) let us all know :)
Not just the colour.
I used to use the Nulon professional stuff, because the local garage was selling it for $8 a bottle... They didn't make that mistake for too long. But then I heard bad stuff about it fouling plugs.
I don't know if it's true or not though.
Ideally, something cheap would be good too.
David
Like a Million Octane?
Wouldn't that be like water??? You'd need to use a thermonuclear detonation to ignite it!!!
But if you've found a decent octane booster that's not crap (and I don't mean at keeping off pinging - I'm talking about fouling plugs too) let us all know :)
Not just the colour.
I used to use the Nulon professional stuff, because the local garage was selling it for $8 a bottle... They didn't make that mistake for too long. But then I heard bad stuff about it fouling plugs.
I don't know if it's true or not though.
Ideally, something cheap would be good too.
David
A hypereutectic piston is a cast piston that has higher amounts
of silicon than normal. Above 13% I believe.
They have some properties that make them suitable for use
with diesels and 2 stroke engines.
They are not in fact any stronger than an ordinary cast piston.
But if a hypereutectic piston is made with a performance application
in mind, they may have some features that make them superior.
Im thinking the shape of the piston and thicker ring lands.
of silicon than normal. Above 13% I believe.
They have some properties that make them suitable for use
with diesels and 2 stroke engines.
They are not in fact any stronger than an ordinary cast piston.
But if a hypereutectic piston is made with a performance application
in mind, they may have some features that make them superior.
Im thinking the shape of the piston and thicker ring lands.
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