40cc~50cc 4 stroke out?
 

I am going to be building a top flight stinson reliant soon and while a GX35 would fly it I want more power than it would provide that plane. I want to use an electric start so it will be closer to the 22Lb range than the 18Lb range. Has anyone seen a new 40+cc 4 stroke that can be mounted inverted on the market yet, or coming up soon?

RE: 40cc~50cc 4 stroke out?
 

I seen a small 4 cycle engine on a water pump at Harbor Freight today. Nice looking engine, but I do not know what cc displacement it was. capt,n

RE: 40cc~50cc 4 stroke out?
 

Brat,
Remember the Stihl BR550 65cc four stroke that uses oil mixed in the fuel. It is big and can be inverted, because it doesn't have a sump. Here is a link.

Dave

http://www.stihlusa.com/blowers/BR550.html

RE: 40cc~50cc 4 stroke out?
 

Very familiar with it, it is a bit large though and I was hoping for a sump type like the GX series to burn stright gas. Given the relatively large size of the 35 and 31 compared to their displacement it wouldn't be unreasonable to see a 45cc in the same rough size and weight. I have checked every manufacturer I can think of and came up empty. I might just use the 50cc RCS 4 stroke, it is basicly a single cyl off the 215cc radial which I have and love, but I hate to spend $1,000 for a $200 solution.... The GX35 would fly it, it handles the rascal and some Balsa USA WWI planes just fine, but I desire more than just scale power for this one.

RE: 40cc~50cc 4 stroke out?
 

The Briggs comes in 29cc, 34cc and 40cc. You can find the 40cc in the Craftsman trimmers.

RE: 40cc~50cc 4 stroke out?
 

I thought I saw Honda was to come out with a 50cc 4-stroke...after their 25, 31 and 35? Maybe I am wrong, or maybe it's not a 4-stroke. I thought Carrprecision was testing them.

RE: 40cc~50cc 4 stroke out?
 

Unfortunately the Honda 50cc 4 stroke doesn't appear to have an all-orientation lubrication system like the GX25 and GX35. It's just a straight sump arrangement. Apart from the Stihl 64cc, Shindaiwa make an 80cc four-stroke using their C4 technology that works similar to the Stihl 4-mix. It's used in their high-end backpack blower that costs around $450 to $500 in the US and £450 in the UK. There is an animation of C4 engines at the following site:

http://www.t2500.com/downloads/index.html

I've been toying with the idea of getting a Shindaiwa blower for use as a blower - at least for a couple of years - who knows what might happen during that period that makes me take it apart and do something else with the engine!

Details of the blower: http://www.shindaiwa.com/nam/en/prod...0_eb8510rt.php

RE: 40cc~50cc 4 stroke out?
 

WOW! I bet that 80cc 4 cycle Shindiawa would be great in a lite bicycle frame that resembles a Harley!!! Capt,n:D:D

RE: 40cc~50cc 4 stroke out?
 

It looks more and more like this: http://www.rcshowcase.com/html/RCS/rcs50vt.html is the solution. It irks me I couldn't turn up a nice oil sump 45cc 4 stroke to convert. I just have to make up some brackets for an onboard starter.

RE: 40cc~50cc 4 stroke out?
 

Shindaiwa seems to be offering the 80cc in parts? Still can't find the power head for sale alone. I was quoted a price of $579 for the whole back pack blower locally.
MSS999 grab one while your pound is still double our dollar!!~):D

Joe