32 HP(maybe)

[Minnesota_boy]

I wouldn't worry about getting at that spark plug.  I've changed engines, but I never have had a plug out or mine.  Electronic ignition seems to have eliminated plug changing for me.  Heck, I even have some of the original plugs in my truck engine, never been out since the factory put them in back in 1978.  

[Swede]

Think I´ve had hundreds of :D :D :D :D :D reading all this wonderful explanations! Tell me what belts You use between the engines, I´m going to be a V-beltdealer.

An other example: Two guys with two hooks. One is trying to turn the log in the morning and one in the afternoon. That log will take all the day.

Look here
http://autozine.kyul.net/technical_school/traction/tech_traction_4wd_21.htm
 Why not a Haldex between the two engies? :D :D

2 motors whith the speed regulations not set the same will work against each other. Even one 2-cyl engine feed tru one carburetor but where fuelmix´s way to the cylinders is diffrent makes You loss power (torqe). Two engines is very difficult to adjust so they are pulling together intill You feed so hard that both goes down in rpm!

And Who dont remember old cars with 2 carburetors? :

As some of You said, there is a big difference between Hp and torqe and everyone use the torque.

I like Your knowledge and how You tell about it! /Swede.  :D :D

[Swede]

EZ

If You realy want two engines (to fill), Use the 16 HP for the saw unit and a 5-8 hp for the hydraulic pump down in the frame. You can get a very fast loghadling that way. I´ve seen  such a Jacko mill.

Remember that a big engine wants more fuel. Two engines want´s a lot! If i slow my Vanguard 18HP down when possible I use about 2,5 liters/hour

If I want an 12 V DC motor for the hydraulic pump and a fast log loader (2 cyl.Ø1,5"x14"), does anybody know if a startmotor from a car or another unexpesive stuff would work? Then I only need 2 cables down from the battery.

Swede.

[music_boy]

O.k.
     Just for the fun of it, I've been readin this thread.  Fascinatin. :P
I don't know nothin bout physics, twin engins, and the like. I do pride myself on some common sense about things and what seems obvious to me. (don't mean it's right)  
So
If  I was pushing a wheelbarrow up a hill with a full load, and i slowed way down to say half the rate as I started.My buddy came along and started helping me push and I was pushin at the previous rate. Is that two people power, or is it the same amount of people power  at its previous rate :-/
rick

[cluckerplucker]

  swede you are catching hell. what about belt slippage, you will need chain drive .  

  cecil

[Swede]

cluckerplucker;

Thats right! ;D and I have 130´ 5/8" for sale and it´s cluch free-type.  8) But I´ve solved Music Boy´s problem.

Run the maine engine with speed control at 3000 rpm. untill it begin to lose speed. Then give 2:nd engine with speed control at 3200  full gas and stretch the V-belts.
Now the main engine hold the speed for both engines, the 2:d goes at  full load. You get the torqe as You need it. HP as Rolls Royce, necessary

Swede.