I just did my compression test on b18c 160 across the board I added a cap full of oil and got 190-195 across the board. Do you guys think this motor is healthy enough for boost.

TIA
Chris

cyl 1 160/195 cap of oil
cyl 2 160/195
cyl 3 160/190
cyl 4 160/190


Modified by Cole D at 12:05 AM 6/24/2007

 

how many cranks did u do? there at least consistant

 

Yes. Those are normal compression numbers. You should only be worried if the numbers vary more than 15% from each cyl.

 

boost it

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Dual Cam Racing &raquo;</TD></TR><TR><TD CLASS="quote">how many cranks did u do? there at least consistant</TD></TR></TABLE>


10 cranks

 

I never heard of the "cap of oil" method, explain please?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by methos713 &raquo;</TD></TR><TR><TD CLASS="quote">I never heard of the "cap of oil" method, explain please? </TD></TR></TABLE>

It is common method to see if the compression rises with some oil sealing the rings.Boost that thing too its consistent and that is good enough.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by methos713 &raquo;</TD></TR><TR><TD CLASS="quote">I never heard of the "cap of oil" method, explain please? </TD></TR></TABLE>

when doing a compression test after the intial test you can put a lil oil in each cylinder and test again, depending on the difference of numbers for the second test kinda of tells you how worn your rings are.......

 

didn't know that...thanks.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by methos713 &raquo;</TD></TR><TR><TD CLASS="quote">didn't know that...thanks.</TD></TR></TABLE>

you learn something new everyday on HT, LOL