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Supporting Owners, Builders and Pilots of the Thorp T-18 and its variants.
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DanaL
 Post subject: O-290 Piston/ring sets
PostPosted: Mon Oct 23, 2017 9:38 pm 
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Joined: Mon Nov 09, 2009 9:39 pm
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Location: USA
8.25:1 or 10:1. Standard or plus .020. Pistons are forged, weight matched and pin fitted including plugs. Rings are cast iron, moly or chrome. $1295/set of 4. Now accepting orders.
(803)795-7760


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Binder
PostPosted: Thu Oct 26, 2017 7:34 am 
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Posts: 196
That's a pretty good deal! Glad to hear you have access to cast rings now. From eci they were over 200$ for the set and this is a little over 300$ for piston and rings!

This would have really upped the zoom in my 290 but I'm not going through that tear down again! :)
Stock d pistons are 6.5:1.

So far 12 hours on the new chrome rings from Dana and going strong. Burning minimal oil even at 12 hours. I've used a quart the last 5 hours. I have 3 chrome ring sets from him but had to get my expensive cast set from eci.

If I run these out and need new again I'd definitely enjoy those 8:1


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DanaL
PostPosted: Thu Oct 26, 2017 8:26 pm 
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Location: USA
Jeff,
I am so very glad to have been able to help. I just wish we had a better timeline, I.E. more lead to get my sources ironed out. For the few hundred $ more we could have put the 8.25:1 in for you for a easy 10hp gain. Sounds like it is smoothing out so I'm happy and hope you are too. If anyone knows anyone with a O-290 spread the gospel. I may be busy with all my stuff but never too busy to help a Mouse Motor flyer out.

Dana LaBounty


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Binder
PostPosted: Fri Oct 27, 2017 7:21 am 
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I think David read on here has a second t18 and if I remember correctly it has a 290.

The 10 hp would be nice although I think engine temps might have become an issue with my current cowling. On hot days I was running pretty warm. It needs the new cowl and updated baffles.

Maybe in the future. Currently my attitude indicator is on the way out so I'm probably going to invest in an efis.


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Lou
PostPosted: Fri Oct 27, 2017 1:11 pm 
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Location: San Bernadino, CA
Are the rings custom? auto style or original o-290 type?

May be interested in a set 10:1 in the future.

_________________
http://www.dixiefriedfabrication.com/


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1albee
PostPosted: Sat Oct 28, 2017 6:40 am 
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Anyone looking for a EFIS may want to look at the Garmin G5, at $1,200.00 it is a bargain. I put one in my Thorp and it works great.

Phil
118BC


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DanaL
PostPosted: Sat Oct 28, 2017 9:24 pm 
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Joined: Mon Nov 09, 2009 9:39 pm
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Location: USA
Lou, rings are straight, not keystone. Rings are cast iron, moly faced or chrome. I also recommend straight bores, not choked. This is all better quality than Lycoming labeled parts for the O-290.


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DanaL
PostPosted: Thu May 10, 2018 6:04 am 
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Joined: Mon Nov 09, 2009 9:39 pm
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Location: USA
Hey all,

I have complete piston/pin/rings/buttons in stock for the O-290. 8.5:1 compression, standard bore. $1350 delivered to your door. I also have a set of
cylinders being straight bored, plated, ported with overhaul. Not cheap but with the pistons I have will make your O-290 into at least 155hp. Cryo and surface
treatments availabe that allow cooler running. These will be available on an exchange basis only upon receipt of your standard bore cylinders.

Dana LaBounty


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Keith S.
PostPosted: Fri May 11, 2018 11:56 am 
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Joined: Thu Oct 22, 2009 7:00 am
Posts: 18
Location: USA
Just received my set of O-290 pistons from Dana. Wow! they are beautiful, just wish my project was at a point where I could put they to use immediately. They are 8.5 to1 comp. with rings, pins and buttons. I am going to be using them in a set of standard chromed cylinders. I do have a complete set of 69841-P10 pistons and rings in case someone might be interested in them.
Keith Schneider
N19GM
Image

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Keith S.
PostPosted: Fri May 11, 2018 12:00 pm 
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Joined: Thu Oct 22, 2009 7:00 am
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Location: USA
Sorry, Got the wrong pictures, lets try this again
Image

Image

Image

Image


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DanaL
PostPosted: Fri May 11, 2018 4:43 pm 
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Joined: Mon Nov 09, 2009 9:39 pm
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Location: USA
Those sure are purty. Thanks Keith. D.L.


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