On Mon, 23 Feb 2004 20:10:04 GMT, "Geoff 93 RRC"
wrote:

It seems most new boats have a 160 thermostat these days. I have a '93
Mercruiser 4.3LX. Can I use the 160 thermostat? I boat exclusively in
fresh water. I want to get the cleaner combustion that the higher temps
give.

Ok, I've a different opinion.

I prefer to run a little cooler thermostat with a hotter plug. I've
done this on my antigue trucks and this technique works great.

If you are looking for power and clean combustion, a hotter plug is
always the best choice over fooling around with the thermostat. You
have to remember that the reason you have a thermostat is to maintain
a constant temperature on the block for expansion/contraction reasons
- not for combustion. Combustion is strictly the pervue of how hot
the spark is.

Curiosity question - raw water cooled or fresh.

Later,

Tom
S. Woodstock, CT
----------

Basic Fishing Program:

10 - Fish
20 - Eat
30 - Sleep
40 - Goto 10