how come no one makes 84mm cast pistons?
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From: mt. pee, sc, usa
Re: how come no one makes 84mm cast pistons? (slow_dx)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by slow_dx »</TD></TR><TR><TD CLASS="quote">
psst... forged pistons are lighter.</TD></TR></TABLE>
okay, SOME forged pistons are lighter. however, look at the compression height on
the lighter units. not what is normally put in a street motor. lets say std bore, same dimensions as stock. forged is heavier. even if not by much, force increases
exponentially with rpm's.
psst... forged pistons are lighter.</TD></TR></TABLE>
okay, SOME forged pistons are lighter. however, look at the compression height on
the lighter units. not what is normally put in a street motor. lets say std bore, same dimensions as stock. forged is heavier. even if not by much, force increases
exponentially with rpm's.
Old Schooler
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From: WESTMINSTER, CA, 92683
Word on the street is cast pistons in 84,84.5,and 85 will be available from RS Machine in less than one month. Cost is to me is unknown you might want to contact Dave @ RS 310-221-6445 or at his shop in AZ 602-272-9988.
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From: Columbus, IN, USA
Re: how come no one makes 84mm cast pistons? (wesisrael)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wesisrael »</TD></TR><TR><TD CLASS="quote">waffles is right. 
forged pistons are heavier and slap on cold start-up.
if they can handle omnimans 240 whp then they're certainly good enough for me.
and finally, if we're so dumb as to use cast pistons then let us make our own
mistakes. there is no need to hate on everyone with a different opinion.
why build a ten foot high brick wall when all you need is a chain link fence?
</TD></TR></TABLE>
I'm not a cast iron piston hater, I'm just saying that for the risk you take with cast iron, it might be a better and safer route. If you guys want to risk your engine, by all means go right ahead. Also I was just stating that cast is old technology and is needed for NOS, supercharger, and turbo user!
Caleb
forged pistons are heavier and slap on cold start-up.
if they can handle omnimans 240 whp then they're certainly good enough for me.
and finally, if we're so dumb as to use cast pistons then let us make our own
mistakes. there is no need to hate on everyone with a different opinion.
why build a ten foot high brick wall when all you need is a chain link fence?
</TD></TR></TABLE>I'm not a cast iron piston hater, I'm just saying that for the risk you take with cast iron, it might be a better and safer route. If you guys want to risk your engine, by all means go right ahead. Also I was just stating that cast is old technology and is needed for NOS, supercharger, and turbo user!
Caleb
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Re: how come no one makes 84mm cast pistons? (wesisrael)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wesisrael »</TD></TR><TR><TD CLASS="quote">okay, SOME forged pistons are lighter. however, look at the compression height on the lighter units. not what is normally put in a street motor. lets say std bore, same dimensions as stock. forged is heavier. even if not by much, force increases exponentially with rpm's. </TD></TR></TABLE>
Weights here:
http://www.importbuilders.com/pistoncomparo.html
Compression height of shelf stock wiseco pistons here
http://www.importperformancepa....html
It's 1.181" -- same as a cast b16a piston.
</TD></TR></TABLE>Weights here:
http://www.importbuilders.com/pistoncomparo.html
Compression height of shelf stock wiseco pistons here
http://www.importperformancepa....html
It's 1.181" -- same as a cast b16a piston.
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From: mt. pee, sc, usa
Re: how come no one makes 84mm cast pistons? (slow_dx)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by slow_dx »</TD></TR><TR><TD CLASS="quote">
Weights here:
http://www.importbuilders.com/pistoncomparo.html
Compression height of shelf stock wiseco pistons here
http://www.importperformancepa....html
It's 1.181" -- same as a cast b16a piston.</TD></TR></TABLE>
ok, i hope you have your reading glasses & your thinking cap handy.
first off for a n/a "STREET" motor with "NO" intention for turbo, nitrous, or supercharger[ also keeping in mind that not everyone has 10,000 dollars to spend], forged pistons are "NOT" needed.
yes stock wiseco pistons are lighter. but i clearly asked you if "ALL" the dimensions are the same. i would put my money on the fact that they are saving the weight by shortning the skirts. not knocking wiesco [because they do make BAD *** pistons]. i was unable to find the length of the skirts on a stock B20 or wiseco piston.if you find them, post'em. either way if you take two pieces of material,one cast aluminum and one forged aluminum that have the same volume, and weigh them. i don't care what alloy, the cast WILL be lighter due to the fact that the materials are constructed differently. in a street engine you have to remember longevity is also the goal. just like every other aspect of engine building, chassis setup, or anything, you have to make a compromise.no one wants to build an engine for their daily driver and take it apart 15,000 miles later due to excessive wear or damage.
if omniman can make 240 whp with stock B20z pistons.then they are good enough for me.
my favorite saying is "gray matter not green matter". any ******* can throw money at an engine, and still not go fast.
Weights here:
http://www.importbuilders.com/pistoncomparo.html
Compression height of shelf stock wiseco pistons here
http://www.importperformancepa....html
It's 1.181" -- same as a cast b16a piston.</TD></TR></TABLE>
ok, i hope you have your reading glasses & your thinking cap handy.
first off for a n/a "STREET" motor with "NO" intention for turbo, nitrous, or supercharger[ also keeping in mind that not everyone has 10,000 dollars to spend], forged pistons are "NOT" needed.
yes stock wiseco pistons are lighter. but i clearly asked you if "ALL" the dimensions are the same. i would put my money on the fact that they are saving the weight by shortning the skirts. not knocking wiesco [because they do make BAD *** pistons]. i was unable to find the length of the skirts on a stock B20 or wiseco piston.if you find them, post'em. either way if you take two pieces of material,one cast aluminum and one forged aluminum that have the same volume, and weigh them. i don't care what alloy, the cast WILL be lighter due to the fact that the materials are constructed differently. in a street engine you have to remember longevity is also the goal. just like every other aspect of engine building, chassis setup, or anything, you have to make a compromise.no one wants to build an engine for their daily driver and take it apart 15,000 miles later due to excessive wear or damage.
if omniman can make 240 whp with stock B20z pistons.then they are good enough for me.
my favorite saying is "gray matter not green matter". any ******* can throw money at an engine, and still not go fast.
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Re: how come no one makes 84mm cast pistons? (wesisrael)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wesisrael »</TD></TR><TR><TD CLASS="quote">ok, i hope you have your reading glasses & your thinking cap handy.
either way if you take two pieces of material,one cast aluminum and one forged aluminum that have the same volume, and weigh them. i don't care what alloy, the cast WILL be lighter due to the fact that the materials are constructed differently.
if omniman can make 240 whp with stock B20z pistons.then they are good enough for me.
</TD></TR></TABLE>
If you've read the whole thread, you know that I'm not knocking cast pistons.
But I think it is more meaningful to compare the mass of the pistons that you can actually use, rather than two blocks of the same volume made out of different materials.
either way if you take two pieces of material,one cast aluminum and one forged aluminum that have the same volume, and weigh them. i don't care what alloy, the cast WILL be lighter due to the fact that the materials are constructed differently.
if omniman can make 240 whp with stock B20z pistons.then they are good enough for me.
</TD></TR></TABLE>If you've read the whole thread, you know that I'm not knocking cast pistons.
But I think it is more meaningful to compare the mass of the pistons that you can actually use, rather than two blocks of the same volume made out of different materials.
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From: mt. pee, sc, usa
Re: how come no one makes 84mm cast pistons? (slow_dx)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by slow_dx »</TD></TR><TR><TD CLASS="quote">
If you've read the whole thread, you know that I'm not knocking cast pistons.
But I think it is more meaningful to compare the mass of the pistons that you can actually use, rather than two blocks of the same volume made out of different materials.</TD></TR></TABLE>
i used the volume illustration to try to make a point to you that forged material is
heavier. YES YOU CAN FIND A LIGHTER FORGED PISTON IN 84MM, but it's a different piston altogether. the poor guy that started the thread probably isn't even
following it anymore because you keep arguing. he's building a street motor, it's not skimping to use cast pistons. if i'm wrong i'll admit. ask waffles. stop arguing
If you've read the whole thread, you know that I'm not knocking cast pistons.
But I think it is more meaningful to compare the mass of the pistons that you can actually use, rather than two blocks of the same volume made out of different materials.</TD></TR></TABLE>
i used the volume illustration to try to make a point to you that forged material is
heavier. YES YOU CAN FIND A LIGHTER FORGED PISTON IN 84MM, but it's a different piston altogether. the poor guy that started the thread probably isn't even
following it anymore because you keep arguing. he's building a street motor, it's not skimping to use cast pistons. if i'm wrong i'll admit. ask waffles. stop arguing
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Re: how come no one makes 84mm cast pistons? (wesisrael)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wesisrael »</TD></TR><TR><TD CLASS="quote">i used the volume illustration to try to make a point to you that forged material is
heavier. YES YOU CAN FIND A LIGHTER FORGED PISTON IN 84MM, but it's a different piston altogether. the poor guy that started the thread probably isn't even
following it anymore because you keep arguing. he's building a street motor, it's not skimping to use cast pistons. if i'm wrong i'll admit. ask waffles. stop arguing</TD></TR></TABLE>
I'm not trying to argue with you for the sake of being difficult.
I'm trying to prevent other people, who might come to this thread for information in the future, from being mislead by your statement that forged pistons are heavier. They're not. You were wrong. They're lighter. That's one of their advantages.
Cast pistons have other advantages, which I feel are more important for a daily driver.
heavier. YES YOU CAN FIND A LIGHTER FORGED PISTON IN 84MM, but it's a different piston altogether. the poor guy that started the thread probably isn't even
following it anymore because you keep arguing. he's building a street motor, it's not skimping to use cast pistons. if i'm wrong i'll admit. ask waffles. stop arguing</TD></TR></TABLE>
I'm not trying to argue with you for the sake of being difficult.
I'm trying to prevent other people, who might come to this thread for information in the future, from being mislead by your statement that forged pistons are heavier. They're not. You were wrong. They're lighter. That's one of their advantages.
Cast pistons have other advantages, which I feel are more important for a daily driver.
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From: Suck it Trebek
Re: how come no one makes 84mm cast pistons? (wesisrael)
weiscos have the some of the closest to stock skirt lengths i know of...
check out this http://www.importbuilders.com/pistoncomparo.html
you can also take note of the weights listed on there, they were all 9:1 pistons so larger dome pistons will have more weight but the b20 factory pistons dont have any dome, keep that in mind, you have to compare apples to apples
check out this http://www.importbuilders.com/pistoncomparo.html
you can also take note of the weights listed on there, they were all 9:1 pistons so larger dome pistons will have more weight but the b20 factory pistons dont have any dome, keep that in mind, you have to compare apples to apples
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From: Forcefield, mn, usa
Re: how come no one makes 84mm cast pistons? (JCushing)
I just bought some (Brand new in the box) cast pistons off for a b20z2 engine which makes them almost 10:1 comp ratio and all honda rings
And now I am selling them, if anyone wants them pm me
I was told the milling on the sides of the pistons make a very tight seal and make the piston fit better.
they hold good up to 10k
And now I am selling them, if anyone wants them pm me
I was told the milling on the sides of the pistons make a very tight seal and make the piston fit better.
they hold good up to 10k
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From: Montclair, CA, US
Re: how come no one makes 84mm cast pistons? (Davep)
Nippon 84.00 standard and oversize pistons in Honda OEM B-Series profiles. NPR rings and wrist pins included. $225 shipped anywhere in the US. Check me signature.
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From: Columbus, IN, USA
Re: how come no one makes 84mm cast pistons? (thevanitygroup)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by StrokeMyCrank »</TD></TR><TR><TD CLASS="quote">I just bought some (Brand new in the box) cast pistons off for a b20z2 engine which makes them almost 10:1 comp ratio and all honda rings
And now I am selling them, if anyone wants them pm me
I was told the milling on the sides of the pistons make a very tight seal and make the piston fit better.
they hold good up to 10k</TD></TR></TABLE>
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by thevanitygroup »</TD></TR><TR><TD CLASS="quote">Nippon 84.00 standard and oversize pistons in Honda OEM B-Series profiles. NPR rings and wrist pins included. $225 shipped anywhere in the US. Check me signature.</TD></TR></TABLE>
Wrong Forum?
Caleb
And now I am selling them, if anyone wants them pm me
I was told the milling on the sides of the pistons make a very tight seal and make the piston fit better.
they hold good up to 10k</TD></TR></TABLE>
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by thevanitygroup »</TD></TR><TR><TD CLASS="quote">Nippon 84.00 standard and oversize pistons in Honda OEM B-Series profiles. NPR rings and wrist pins included. $225 shipped anywhere in the US. Check me signature.</TD></TR></TABLE>
Wrong Forum?
Caleb
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From: Montclair, CA, US
Re: how come no one makes 84mm cast pistons? (supercreed2002)
^ Yes and NO. The topic subject is "how come no one makes 84.00 cast pistons". Well, just so everyone knows, I have them. BTW, your neither a mod or the forum police so stick to your own comments. If a mod moves it, fine but otherwise your just posting for posting sake.
Member
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only sucky part about a cast piston is when you have and accident with it, they crack into a million pieces further fubaring your motor, but forged pistons can take a hit and not shatter into pieces and get distributed thorugh ur whole engine,
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From: jacksonville, fl
im just getting into building motors because I plan on starting my ls build soon, but i look at it this way....if a ITR motor can make good power and rev high. then whats the difference in putting them in a street motor that might go as high as 8500 rpms?
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