lml@lancaironline.net Mailing List Archive

Mark S. said, The two big issues are heat and overspeed. Inconnel turbo blades are mandatory.

Where can I find out more?

b.t.w. - I did check with Garrett about my turbos. They said a) they are inconel and b) they recommend running not higher than 1650. This surprised me so I asked if that was a hard limit. They said "We have found they last a lot longer at 1650" so I remain a little unclear if that is really about temps are about rpm. Since I have over-size compressors I suspect my turbo rpms are lower than stock.

----- Original Message -----

From: Mark Steitle

To: lml@lancaironline.net

Sent: Friday, June 08, 2007 4:38 AM

Subject: [LML] Re: What's better than a Continental IO-550 fuel system?

Colyn,

Yes, there have been a few. Dave Leonard and Tom Parkes names comes to mind. The rotary is a very good match for a turbo, but the problem is finding a turbo that can stand up to the rotary. The few that have tried it have spent a good chunk of change trying to find a combination that will handle the severe beating that the rotary dishes out.  (Higher exhaust temps and no exhaust valves to soften the exhaust pulses.) The good news is that a failed turbo still allows the engine to continue running, albeit at reduced power. The "turbo guys" are getting closer on finding the right combination for airborn rotary.

The two big issues are heat and overspeed. Inconnel turbo blades are mandatory.

I initially was going the turbo route, but eventually decided on the simpler route and go n/a. I think it was a good decision. My engine is a turbo version, so if I every decide that I want to turbo-charge, then it will be a bit simpler undertaking.

Mark

On 6/7/07, Colyn Case on earthlink <colyncase@earthlink.net> wrote:

Mark S.,

    I found your post informative and interesting.

    Has anyone attempted a turbo installation of that engine?

Colyn