Merc. 2.5 Compression??

[Run_em_Hard]

What compression numbers would be good from these motors???

[Tom Brown]

260? 280? What?

[Run_em_Hard]

I do believe that they are the 260's.

[Towndrunk]

For a stock motor? 120-140. They should all be close to each other and in no
case further apart than 15 percent of the highest number.

[Run_em_Hard]

Thanks...

[Tom Brown]

My 260 puts out 125 on all holes with 37cc heads.

[Run_em_Hard]

For twins 142-145 on port, and 135 all on starboard. Sound good?

[Towndrunk]

I have run into the starboard side being about 10 lbs higher. Not sure why but it hasn't hurt anything yet. I just checked mine and it's between 200 and 210 all around.

[You Te]

I have run into the starboard side being about 10 lbs higher. Not sure why but it hasn't hurt anything yet. I just checked mine and it's between 200 and 210 all around.
Sounds like 21 to 23 cc heads to me.

[Towndrunk]

I didn't say it was stock!! Hey, how much meth do you go thru in a weekend?
I'm having a hell of a time finding it over here and I have a function this weekend. Will 3 gallons get me thru 10 or so runs?