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Engine compression
Posted: Sat Jun 10, 2006 5:53 pm
by bernhard
What is the compression of a Good Pinz engine in PSI? Both my Pinz measure 160-163 PSI. I’m guessing this is fine but just wanted to confirm with other owners out there.
Thanks
Bernhard
Posted: Sat Jun 10, 2006 6:14 pm
by Jim LaGuardia
That is the top end of the scale, I find most to be around 125-145psi
Posted: Sat Jun 10, 2006 6:22 pm
by hkmp5
Hello Bernhard,
My pinz engine runs between 150 to 155 psi.
Posted: Sun Jun 11, 2006 11:42 am
by bernhard
Thanks guys,
Looks like both my engines are in good condition.
My 712 always pinged on regular gas so now I run supper or supreme. I was under the impression you could run these engines on very low octane gas? I guess what is considered low octane in Europe is high octane here.
Posted: Sun Jun 11, 2006 12:06 pm
by 2012
don't you just have to retard the timing a bit to use 87 octane?
Posted: Thu Jun 15, 2006 11:23 am
by Charles
Hi Guys,
That seems like pretty awesome compression to me! Last time I did a leak-down I had compressions of about 145-150ish (with a cold engine though)...
Also, I've been running 87 octane in my Pinz for a long time with no ping/knock at all (and I am a scooch advanced in timing). I do have the civ ignition / spark though so maybe that makes a difference as well.