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16727

Re: New Engine source, right power and simple to convert

I wouldn't use horsepower as an absolute, when designing a homebuilt. A hopped up motor uses more fuel per HP hour. Less smooth engines transmit vibration and
walnutbranch
Dec 14, 2017
#16727
 
16726

Re: New Engine source, right power andsimple to convert

Good point. Sent from Mail for Windows 10 From: Scott Perkins 2scott@... [Small4-strokeEngines] Sent: December 13, 2017 1:13 AM To:
    albert
    Dec 13, 2017
    #16726
    This message has attachments
    16725

    Re: New Engine source, right power and simple to convert

    Another major input is the rotating mass and distribution of the mass. Many decades ago before rubber belts existed and leather and steel chains were the norm
    Scott Perkins
    Dec 13, 2017
    #16725
     
    16724

    Re: New Engine source, right power and simple to convert

    Yes, I've used a free program by Gates Belts and it's a huge reduction. I don't recall the exact number either and also to lazy to go look, but if someone is
    Rick Martin
    Dec 12, 2017
    #16724
     
    16723

    Re: New Engine source, right power and simple to convert

    While a single-cylinder engine seems appealing because of lower parts count, shorter crank, etc, there is actually a significant advantage to more cylinders if
    asport22
    Dec 12, 2017
    #16723
     
    16722

    Re: New Engine source, right power and simple to convert

    You are unfortunately quite correct that PSRU units are expensive. There are not many that are adaptable to what I am looking for and to build my own is
    jerry stole
    Dec 8, 2017
    #16722
     
    16721

    Re: New Engine source, right power and simple to convert

    A drive train that takes strain off an engine's bearings, for a propeller, is called a PSRU. There are not many models and they are generally expensive. A
    walnutbranch
    Dec 8, 2017
    #16721
     
    16720

    Re: New Engine source, right power and simple to convert

    My Kohler VTwin is 100 lb firewall forward. 36hp, could be a little more. It has stroker crank, dual carbs. You may find a 2 cylinder motorcycle engine just as
    Norman Heistand
    Dec 5, 2017
    #16720
     
    16719

    Re: New Engine source, right power and simple to convert

    Norm, You brought up my main reason for being on this site, which is to convert motorcycle engines for light aircraft use. What I have in mind is to take a
    jerry stole
    Dec 2, 2017
    #16719
     
    16718

    Re: New Engine source, right power and simple to convert

    A lot of motorcycle engines are available used or salvage for reasonable cost. You can get 4 valve, dual overhead cam, fuel injection, water cooling, etc.
    normheistand
    Dec 2, 2017
    #16718
     
    16717

    Re: What are the options for a lighterflywheel?

    Hello Norm,That's the little 4 cylinder boxer isn't it? Please PM me.                                       mcbride_bob@...
    Bob McBride
    Dec 1, 2017
    #16717
     
    16716

    Re: What are the options for a lighterflywheel?

    I also have a new 4A032 engine with prop hub, Mikuni carb, and GM HEI ignition, and 12 volt starter. The power and weight are not enough to suit me for my
    Norman Heistand
    Dec 1, 2017
    #16716
     
    16715

    Re: What are the options for a lighterflywheel?

    That's the 6 lb alternator. Brian W On 11/30/2017 12:40 PM, Norman Heistand nheistand@... ... That's the 6 lb alternator. Brian W On 11/30/2017 12:40 PM,
    brian whatcott
    Nov 30, 2017
    #16715
     
    16714

    Re: What are the options for a lighterflywheel? [2 Attachments]

    Is anyone interested in purchasing a 2 cylinder 4 stroke military engine? I have the hub and propeller to go with it as well as a small turbo charger if
    Tyler Aguillard
    Nov 30, 2017
    #16714
     
    16713

    Re: What are the options for a lighterflywheel? [2 Attachments]

    That is a permenant magnet 12v alternator off a riding lawn mower, if you click the links in my last email you will find lots of them. I use them and love
    David M
    Nov 30, 2017
    #16713
     
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