never really seen this before...oiling passage at the wrist pin
I come across this on yahoo auctions japan today. Thought it was sorta interesting. Anyone on here ever do this? Pretty obvious what it does. They pretty much say its for oil cooling, and wrist pin cooling. thoughts?
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DonF »</TD></TR><TR><TD CLASS="quote">It means they "free-floated" the pins, theirfore they need oil. </TD></TR></TABLE>exactly. they machined the rods to use aftermarket pistons w/ floating wirst pins.
Trending Topics
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Suck my DX »</TD></TR><TR><TD CLASS="quote">i see....what advantages do they offer over stock?
do the stock wrist pins have a descriptive term as well ?</TD></TR></TABLE><TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Suck my DX »</TD></TR><TR><TD CLASS="quote">i see....what advantages do they offer over stock?
do the stock wrist pins have a descriptive term as well ?</TD></TR></TABLE>
stock wrist pins must be pressed into the rod and the piston floats on the pin. aftermarket wristpins float within the rod and the piston floats on the pin which is held from sliding out of either side with a circlip.
this means under normal circumstances you need aftermarket rods to use aftermarket pistons. unless you mod your stock rod as such.
what this guy wanted to do originally was stick something like a wiseco piston in his motor and didnt want to shell for the rods which probably werent needed anyway if it was a mild set up. so he had the little end of the rod machine a few .001 larger, then drilled that chamfered oil hole to lube the wristpin.
thats all. its nothing big, been done many times and theres nothing wrong with it on a sub 250whp/10k rpm NA motor as long as the hardware is upgraded as well.
do the stock wrist pins have a descriptive term as well ?</TD></TR></TABLE><TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Suck my DX »</TD></TR><TR><TD CLASS="quote">i see....what advantages do they offer over stock?
do the stock wrist pins have a descriptive term as well ?</TD></TR></TABLE>
stock wrist pins must be pressed into the rod and the piston floats on the pin. aftermarket wristpins float within the rod and the piston floats on the pin which is held from sliding out of either side with a circlip.
this means under normal circumstances you need aftermarket rods to use aftermarket pistons. unless you mod your stock rod as such.
what this guy wanted to do originally was stick something like a wiseco piston in his motor and didnt want to shell for the rods which probably werent needed anyway if it was a mild set up. so he had the little end of the rod machine a few .001 larger, then drilled that chamfered oil hole to lube the wristpin.
thats all. its nothing big, been done many times and theres nothing wrong with it on a sub 250whp/10k rpm NA motor as long as the hardware is upgraded as well.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Suck my DX »</TD></TR><TR><TD CLASS="quote">anyone care to explain what a floating wrist pin is.</TD></TR></TABLE>
It means that when you put it in water it sits at the top of the water i think..?
It means that when you put it in water it sits at the top of the water i think..?
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by xDicktonesx »</TD></TR><TR><TD CLASS="quote">
stock wrist pins must be pressed into the rod and the piston floats on the pin. aftermarket wristpins float within the rod and the piston floats on the pin which is held from sliding out of either side with a circlip.
this means under normal circumstances you need aftermarket rods to use aftermarket pistons. unless you mod your stock rod as such.
what this guy wanted to do originally was stick something like a wiseco piston in his motor and didnt want to shell for the rods which probably werent needed anyway if it was a mild set up. so he had the little end of the rod machine a few .001 larger, then drilled that chamfered oil hole to lube the wristpin.
thats all. its nothing big, been done many times and theres nothing wrong with it on a sub 250whp/10k rpm NA motor as long as the hardware is upgraded as well.</TD></TR></TABLE>
ahhh i see....thanks for the clarification...
now you say that it is good under ~250whp/10k rpm.... are you referring to the process done to the above rods? or any floating wrist pin in general?
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Sol Rosenberg »</TD></TR><TR><TD CLASS="quote">
It means that when you put it in water it sits at the top of the water i think..?</TD></TR></TABLE>
BAN!
stock wrist pins must be pressed into the rod and the piston floats on the pin. aftermarket wristpins float within the rod and the piston floats on the pin which is held from sliding out of either side with a circlip.
this means under normal circumstances you need aftermarket rods to use aftermarket pistons. unless you mod your stock rod as such.
what this guy wanted to do originally was stick something like a wiseco piston in his motor and didnt want to shell for the rods which probably werent needed anyway if it was a mild set up. so he had the little end of the rod machine a few .001 larger, then drilled that chamfered oil hole to lube the wristpin.
thats all. its nothing big, been done many times and theres nothing wrong with it on a sub 250whp/10k rpm NA motor as long as the hardware is upgraded as well.</TD></TR></TABLE>
ahhh i see....thanks for the clarification...
now you say that it is good under ~250whp/10k rpm.... are you referring to the process done to the above rods? or any floating wrist pin in general?
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Sol Rosenberg »</TD></TR><TR><TD CLASS="quote">
It means that when you put it in water it sits at the top of the water i think..?</TD></TR></TABLE>
BAN!
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Suck my DX »</TD></TR><TR><TD CLASS="quote">
ahhh i see....thanks for the clarification...
now you say that it is good under ~250whp/10k rpm.... are you referring to the process done to the above rods? or any floating wrist pin in general?
BAN!
</TD></TR></TABLE>
no im talking about stock honda rods. they are plenty for streetable NA is most scenarios. notice i didnt use any "always" or "never" statements.
ahhh i see....thanks for the clarification...
now you say that it is good under ~250whp/10k rpm.... are you referring to the process done to the above rods? or any floating wrist pin in general?
BAN!
</TD></TR></TABLE>
no im talking about stock honda rods. they are plenty for streetable NA is most scenarios. notice i didnt use any "always" or "never" statements.
Thread
Thread Starter
Forum
Replies
Last Post
92TypeR
All Motor / Naturally Aspirated
13
Feb 26, 2005 11:18 AM
Aeka GSR
Forced Induction
2
Nov 23, 2003 01:58 PM



