Ok we compression tested my jmd b18c motor yesterday and my compression came up 288-288-288-288. Everyone I keep talking to is saying my motor must have some type of piston in it rather than stock because of the compression is high. I purchased the motor from hmotorsonline about 2 years ago. I have the motor in a 93 dx hatch full interior and i am running 13.6@103mph. can you guys give me any info?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by FSTVTEC &raquo;</TD></TR><TR><TD CLASS="quote">Ok we compression tested my jmd b18c motor yesterday and my compression came up 288-288-288-288. Everyone I keep talking to is saying my motor must have some type of piston in it rather than stock because of the compression is high. I purchased the motor from hmotorsonline about 2 years ago. I have the motor in a 93 dx hatch full interior and i am running 13.6@103mph. can you guys give me any info?</TD></TR></TABLE>

as long as theyre consistent..all gauges read different...its pretty normal...

 

Also depends on how much your crank it when doing the test. The more the motor turns over the higher the compression will be because the gauge will keep stacking up the psi with each compression stroke.

 

If they are all even be happy, my guage will show a diff. number.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DonF &raquo;</TD></TR><TR><TD CLASS="quote">If they are all even be happy, my guage will show a diff. number.</TD></TR></TABLE>

Exactly.

BTW....nice times.

 

atleast yours isn't 120 wanna trade?..

nice numbers as well.