Bob,

Why will he need to re-gear the outdrive going from 188 to 190 hp? Even if
the difference was a little more drastic, I'd think a prop change would
handle it - no?

-W

"Bob D." wrote in message
news:sailbad_d_sinner-

Your going to need to regear your outdrive. Plan on another $800 - $3000
on anything from just a gear change to a completely rebuilt unit.

Clams,

Check out the hp/torque curves for the two engines. My failing memory seems to
be seeing a lot of revs to make 188 hp with that old engine. I also seem to
remember the older engine hp ratings were flywheel numbers vs todays at the
prop numbers??? Or not!!! Maybe a prop change would handle it.

Even so, the project makes little economic sense unless it's all the budget
will handle or there is a strong emotional attachment to the boat.

Butch

Clams wrote: Why will he need to re-gear the outdrive going from 188 to 190
hp? Even if
the difference was a little more drastic, I'd think a prop change would
handle it - no?

Oh, I wasn't arguing with your assessment that it would be kind of expensive
for an older boat. I was just arguing about re-gearing.

IMHO a prop change would handle it. I know I can go from 80 to 150 HP on a
Merc OB with the same lower unit (2/1) and just prop changes - done it.

-W

"JDavis1277" wrote in message
...
Clams,

Check out the hp/torque curves for the two engines. My failing memory
seems to
be seeing a lot of revs to make 188 hp with that old engine. I also seem
to
remember the older engine hp ratings were flywheel numbers vs todays at
the
prop numbers??? Or not!!! Maybe a prop change would handle it.

Even so, the project makes little economic sense unless it's all the
budget
will handle or there is a strong emotional attachment to the boat.

Butch

Clams wrote: Why will he need to re-gear the outdrive going from 188 to
190
hp? Even if
the difference was a little more drastic, I'd think a prop change would
handle it - no?

Hey,

You might be right there, I didn't notice the HP output was so close.

Now I'm not sure why he'd want to do this at all!

Bob Dimond

In article W4gmb.19119$Tr4.40037@attbi_s03, "Clams Canino"
wrote:

Bob,

Why will he need to re-gear the outdrive going from 188 to 190 hp? Even if
the difference was a little more drastic, I'd think a prop change would
handle it - no?

-W