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-   -   Compression of 525 EFI's (https://www.offshoreonly.com/forums/general-q/248179-compression-525-efis.html)

verbi69 02-23-2011 11:13 AM
Compression of 525 EFI's
 
What should the compression be on an Merc 525 EFI in pounds??

Thanks in advance.

campionchase910 02-23-2011 01:27 PM
stock 8.75:1

RT930turbo 02-23-2011 01:51 PM
Compression in ft/lbs? don't you guys use the metric system up there? :lolhit:

verbi69 02-23-2011 02:13 PM
Originally Posted by RT930turbo (Post 3334135)
Compression in ft/lbs? don't you guys use the metric system up there? :lolhit:
Lol... yes we do!

verbi69 02-23-2011 02:13 PM
Originally Posted by campionchase910 (Post 3334118)
stock 8.75:1
That one I knew, but what is it in pounds??

verbi69 02-23-2011 02:16 PM
Originally Posted by RT930turbo (Post 3334135)
Compression in ft/lbs? don't you guys use the metric system up there? :lolhit:
After re-reading the post it looks like I'm looking for torque with the ft/lbs......:eek:

I got the info I was looking for...it's 140 lbs.

Thanks !!

Keith Atlanta 02-23-2011 09:16 PM
Originally Posted by verbi69 (Post 3333998)
What should the compression be on an Merc 525 EFI in pounds??

Thanks in advance.

Wait. Did you buy a boat with 525's or 500 EFI's?

VAspeed3 02-23-2011 09:49 PM
You asked for Compression, but the answer you got was compression ratio

verbi69 02-23-2011 09:55 PM
Originally Posted by VAspeed3 (Post 3334618)
You asked for Compression, but the answer you got was compression ratio
Yup...... the compression pounds was what I was looking for.:drink:

verbi69 02-23-2011 09:57 PM
:drink:
Originally Posted by Keith Atlanta (Post 3334581)
Wait. Did you buy a boat with 525's or 500 EFI's?
Keith, closing the deal on a 525 boat...and not a 342!!
Compression and leak down was excellent, scan of engines was excellent, deposit accepted and contract signed.
Can't wait for spring!!


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