why is my compression so high? gsr 240 psi across
10-17-2008, 08:08 PM
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why is my compression so high? gsr 240 psi across
i just changed my valve seals today, the car started right up and ran fine, at running temp i did a compression test.. it read 240(+-5)psi in each cylinder, its a 96 stock gsr is this too high? isnt it supposed to be 210ish?
10-17-2008, 08:26 PM
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Re: why is my compression so high? gsr 240 psi across (2wheelhunter)
What cams are in the motor? That will have an effect on the compression test as well. I have seen many stock B series motors make 210-250 psi, so I dont think its that uncommon.
10-17-2008, 09:15 PM
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Re: why is my compression so high? gsr 240 psi across (skaternak)
stock cams everything is stock....
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by skaternak »</TD></TR><TR><TD CLASS="quote">all i can say is kaboom, dont let it happen</TD></TR></TABLE>
whats going to make it blow up?
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by skaternak »</TD></TR><TR><TD CLASS="quote">all i can say is kaboom, dont let it happen</TD></TR></TABLE>
whats going to make it blow up?
10-17-2008, 09:18 PM
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Re: why is my compression so high? gsr 240 psi across (2wheelhunter)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by skaternak »</TD></TR><TR><TD CLASS="quote">all i can say is kaboom, dont let it happen</TD></TR></TABLE>
Wtf are you talking about, why the hell is it going to kaboom, that is not even a word neither does that help the op with his problem Please leave your stupid comments to yourself.
Wtf are you talking about, why the hell is it going to kaboom, that is not even a word neither does that help the op with his problem Please leave your stupid comments to yourself.
10-17-2008, 09:29 PM
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Re: why is my compression so high? gsr 240 psi across (Historyg)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Historyg »</TD></TR><TR><TD CLASS="quote">
Wtf are you talking about, why the hell is it going to kaboom, that is not even a word neither does that help the op with his problem Please leave your stupid comments to yourself. </TD></TR></TABLE>
Wtf are you talking about, why the hell is it going to kaboom, that is not even a word neither does that help the op with his problem Please leave your stupid comments to yourself. </TD></TR></TABLE>
10-18-2008, 07:47 AM
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Re: why is my compression so high? gsr 240 psi across (skaternak)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by skaternak »</TD></TR><TR><TD CLASS="quote">all i can say is kaboom, dont let it happen</TD></TR></TABLE> 
to people who dont know how to keep their mouths shut and think they actually know things about cars...i expected this to be in the integra forum not the civic del sol come on man step your game up hahaha
to people who dont know how to keep their mouths shut and think they actually know things about cars...i expected this to be in the integra forum not the civic del sol come on man step your game up hahaha
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10-18-2008, 08:21 AM
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Re: why is my compression so high? gsr 240 psi across (2wheelhunter)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2wheelhunter »</TD></TR><TR><TD CLASS="quote">stock cams everything is stock.... </TD></TR></TABLE>
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MrXclusivE »</TD></TR><TR><TD CLASS="quote">the head has probably been milled or upgraded cam before. run higher octane gas see if its faster.</TD></TR></TABLE>
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MrXclusivE »</TD></TR><TR><TD CLASS="quote">the head has probably been milled or upgraded cam before. run higher octane gas see if its faster.</TD></TR></TABLE>
10-18-2008, 08:32 AM
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Re: why is my compression so high? gsr 240 psi across (turbojdmhatch)
yeah but still could've been rebuilt and milled because it was warped or something, that'll bump up the compression. anyhow who doesn't like higher compression? lol I would go 91 or 94 octane see if it makes a difference
10-18-2008, 08:32 AM
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Re: why is my compression so high? gsr 240 psi across (turbojdmhatch)
240 across the board?? sounds like a beautifully healthy GSR motor. high octane it like already said and dyno it.
10-18-2008, 09:14 AM
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Re: (boondocks1805)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boondocks1805 »</TD></TR><TR><TD CLASS="quote">Sorry to thread jack but what would be normal PSI on a 94 GSR stock? 10.0:1 comp</TD></TR></TABLE>
around 200-210psi
my stock JDM ITR motor around 270psi (11.1:1)
what’s more important about compression tests is the consistency between cylinders
Modified by sicones at 10:19 AM 10/18/2008
around 200-210psi
my stock JDM ITR motor around 270psi (11.1:1)
what’s more important about compression tests is the consistency between cylinders
Modified by sicones at 10:19 AM 10/18/2008
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