GM90 Listeroid Powerplant Walkaround

[veggie]

The holidays allowed me a bit of free time to finish up my Listeroid powerplant project.
After a year of "on-and-off" working, this project is finally done.
Rather than explain my setup, I made a "walkaround" video to share.
This is a GM90 Listeroid coupled to a Voltmaster 4kw head.
Currently the engine is de-rated from 900 rpm to 650 rpm where it produces 5HP (or 2.5 kw electrical @ full loaded).
I did try to coax 3kw from it but the black smoke told me it was too much  

http://www.youtube.com/watch?v=l562wUof59c

veggie

[Carlb]

great looking setup,  sounds good,  What mounts are you using?

carl

[Tom Reed]

You'll get quite a bit more power once the rings seat and the rest of the engine breaks in.

[dieselgman]

Excellent system! Thanks for the video!

dieselgman

[Ronmar]

You'll get quite a bit more power once the rings seat and the rest of the engine breaks in.

I agree, at 650 RPM, I would think you should be closer to 6HP and able to sustain 3KW of electric load fairly easilly.  Nice clean installation:)

Are you sure you are getting 650 RPM?  I am assuming that is a 3600 RPM generator, what are your flywheel and pully diameters?   My educated ear(and a stopwatch) count 100 firings/200 RPM in 17.4 seconds.  Recording/playback speed not withstanding, that works out to be around 690 RPM by my math...  That should net you over 6HP, so once it gets broke-in, you might look into injector timing, cam timing, fuel flow ect...

[mbryner]

Very nice, veggie.   And great video.

[squarebob]

GM 90s are a bit smaller than a listeroid and run at 750 RPM

[fabricator]

It sure runs smooth as silk.

[Ronmar]

GM 90s are a bit smaller than a listeroid and run at 750 RPM

You know I don't think I ever looked at the specs for the GM-90 before.  I didn't realize it gets it's 6HP AT 750 RPM...  Please disregard my HP estimates, but I stand by my RPM estimate:)

[playdiesel]

Wow, That is realy a clean installaton. I like it!

[veggie]

Thanks guys,

The GM90 that I got is the version with the heavier 900 rpm flywheels.
At 900 rpm it makes 8 HP.
at 750 rpm it makes 6 HP, and
at 650 rpm it makes 5 HP

The Voltmaster brushless generator head is rated at 4kw continuous and 5kw intermittent (10 minutes max)
Eventually I may speed the drive system up to 900 rpm and make a good 4 kws.

veggie

[akghound]

WOW! That is one nice setup. Good job.
Ken Gardner

[veggie]

great looking setup,  sounds good,  What mounts are you using?

carl

Hi Carl,

The rubber isolators are made by the Karman rubber company.
I used their "2 piece Center bonded" product.

Here is the link....
http://www.karman.com/cbonded1.cfm

and below is my design for the mount to connect the engine base to the isolator and the floor.
The engine base sits totally isolated from the concrete base.

veggie

[Carlb]

Thanks Veggie,

Those look identical to the vibration dampers I have on my wind turbine.  My wind turbine (skystream 3.7) has 8 of them where the turbine mounts to the tower.

Carl.

[Ronmar]

They look like auto body-chassis mounts...

AHH your paint-foo is strong!