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  #1  
Unread 10-13-16, 02:18 PM
rmorris rmorris is offline
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turbo swap?

David (aka Big Cheese),

what is the part number on the turbos you put in that you call newer model, and where did you get them for 3500 each?

Last time I overhauled either front or rear, it was well north of 5k...o a 3500 replacement, assuming similar perf or better, sounds awfully attractive.

Also, was this a swap using 337 paperwork, or straight out certified via STC etc?

Robert

PS. Rear engine now getting close to 1400 hours, and burning through oil a bunch. Plus been thinking about bigger engines to go faster...so open to any ideas people have on this thread about overhaul, new, or straight out upgrade
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  #2  
Unread 10-13-16, 03:14 PM
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n86121 n86121 is offline
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Smile Aha

So the turbocharger (Part no 406-970) was upgraded sometime in the past, circa 1998?

Then overhauled more recently 2011. That's 13 years. I can live with that.

So the overhaul was about $3500 or so by 'Approved Turbo' in Vero Beach FL, as I recall.

As with any turbo twin maintenance and cost.....it is all a blur...
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  #3  
Unread 10-23-16, 10:35 PM
rmorris rmorris is offline
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engine options

1) Last time I had turbos overhauled (which is not too far back) it was well north of 6K each...I also used ATC, but maybe I didn't say the magic words?

2) no one has any comments on different engine options (other than just throw in another of the same)?
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  #4  
Unread 10-23-16, 11:43 PM
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Red Air Rambo Red Air Rambo is offline
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Quote:
Originally Posted by rmorris View Post
1) Last time I had turbos overhauled (which is not too far back) it was well north of 6K each...I also used ATC, but maybe I didn't say the magic words?

2) no one has any comments on different engine options (other than just throw in another of the same)?
I thought mine was around $3500, maybe it depends on how many parts they have to replace? FYI I also used them and was completely satisfied,

Only other engine option I can think of other than the turbo-prop test mule would be Riley's 520 Super Sky Rocket. Probably cheaper to find one than convert one though.

Brent
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  #5  
Unread 10-23-16, 11:52 PM
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Red Air Rambo Red Air Rambo is offline
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Quote:
Originally Posted by Red Air Rambo View Post
I thought mine was around $3500, maybe it depends on how many parts they have to replace? FYI I also used them and was completely satisfied,

Only other engine option I can think of other than the turbo-prop test mule would be Riley's 520 Super Sky Rocket. Probably cheaper to find one than convert one though.

Brent
They have quite a good climb rate, both dual and single engine, I just did not like the weight penalty, or the exclusiveness of parts. People I know that had them loved them. The climb rate is around 750 single and 2500 fpm both, it can go....but with fuel burn to match.
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  #6  
Unread 11-21-16, 01:30 PM
edasmus edasmus is offline
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I just thought I'd post that my Skymaster is through the annual and it went reasonably well. Engines seem to be all good with clean filters, good compression's, and scoping all cylinders yielded all "pretty" pictures of valves. Soooo, carry on I shall. Two factory engines installed in 1988 that now have about 1570 SFRM. Hoping for another good year.

Thanks, Ed
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