JDM or USDM Pistons?
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R.I.P. Andy
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From: I hate Christine Gregoire...Lynnwood WA
JDM or USDM Pistons?
I have some b16 pistons and I dont know if they are jdm or u.s, is there any way of telling? I know one will have a little higher dome but I dont have a U.S. set to compare to, help would be greatly apreciate it. 
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Joined: Oct 2003
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From: Hendersonville, NC
All US B16A's had PR3 pistons, some JDM B16A's had PR3 pistons and some had P30 pistons. There is no difference between a US and JDM PR3 piston.
Also, are you willing to sell the pistons?
Also, are you willing to sell the pistons?
Re: (Kendall)
kendall, will i be alright running pr3 pistons on a ls block... the motor is a NA lsvtec and i want to run about a 11:5 CR.. is this ok on pump gas (91)?
i do plan on reving fairly high with a built bottem end... so i do plan on getting agressive cams as well to go with the high CR. thanks!
i do plan on reving fairly high with a built bottem end... so i do plan on getting agressive cams as well to go with the high CR. thanks!
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R.I.P. Andy
Joined: Jan 2004
Posts: 1,062
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From: I hate Christine Gregoire...Lynnwood WA
Re: (Kendall)
first of all no they arent for sale 
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Kendall »</TD></TR><TR><TD CLASS="quote">All US B16A's had PR3 pistons, some JDM B16A's had PR3 pistons and some had P30 pistons. There is no difference between a US and JDM PR3 piston.
Also, are you willing to sell the pistons?</TD></TR></TABLE>
actually, us pr3/p30 slugs have a dome height of 6.01 where jdm ones have a dome of 6.93, that wasnt the question, they ARE different I just want to know how you tell which is which without having the two sitting next to each other.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HondaGuy02 »</TD></TR><TR><TD CLASS="quote">kendall, will i be alright running pr3 pistons on a ls block... the motor is a NA lsvtec and i want to run about a 11:5 CR.. is this ok on pump gas (91)?
i do plan on reving fairly high with a built bottem end... so i do plan on getting agressive cams as well to go with the high CR. thanks!</TD></TR></TABLE>
you'll be just fine on 91 octane with 11.5:1, just run a knock sensor, Ive heard the ringlands on b16 pistons dont like detonation at all haha, with my setup ill be running around 12.5:1 on 92 octane so we'll see!
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Kendall »</TD></TR><TR><TD CLASS="quote">All US B16A's had PR3 pistons, some JDM B16A's had PR3 pistons and some had P30 pistons. There is no difference between a US and JDM PR3 piston.
Also, are you willing to sell the pistons?</TD></TR></TABLE>
actually, us pr3/p30 slugs have a dome height of 6.01 where jdm ones have a dome of 6.93, that wasnt the question, they ARE different I just want to know how you tell which is which without having the two sitting next to each other.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HondaGuy02 »</TD></TR><TR><TD CLASS="quote">kendall, will i be alright running pr3 pistons on a ls block... the motor is a NA lsvtec and i want to run about a 11:5 CR.. is this ok on pump gas (91)?
i do plan on reving fairly high with a built bottem end... so i do plan on getting agressive cams as well to go with the high CR. thanks!</TD></TR></TABLE>
you'll be just fine on 91 octane with 11.5:1, just run a knock sensor, Ive heard the ringlands on b16 pistons dont like detonation at all haha, with my setup ill be running around 12.5:1 on 92 octane so we'll see!
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