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Anyone with UL94 experience on their M-14P?

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yakflyr

Joined: 10 Mar 2009
Posts: 24

Posted: Tue Dec 07, 2021 2:30 pm Post subject: Anyone with UL94 experience on their M-14P?

My airport here in Northern California (KRHV) is going 100% UL94, so I am looking for anyone with experience operating their M-14P on UL94, and any concerns, side effects or modifications needed.  Otherwise I may have to sell my Yak 55M since there is no convenient fueling options

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Clouddog

Joined: 02 Jun 2016
Posts: 119
Location: Lebanon, TN

Posted: Tue Dec 07, 2021 6:03 pm Post subject: Anyone with UL94 experience on their M-14P?

Leave California!!



On Tue, Dec 7, 2021, 16:36 yakflyr <yak55m(at)gmail.com (yak55m(at)gmail.com)> wrote:



 	  Quote: 	
		  --> Yak-List message posted by: "yakflyr" <yak55m(at)gmail.com (yak55m(at)gmail.com)>

 

 My airport here in Northern California (KRHV) is going 100% UL94, so I am looking for anyone with experience operating their M-14P on UL94, and any concerns, side effects or modifications needed.  Otherwise I may have to sell my Yak 55M since there is no convenient fueling options

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=505193#505193

 

 

 

 

 

 

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richard.goode(at)russiana
Guest

Posted: Wed Dec 08, 2021 2:50 am Post subject: Anyone with UL94 experience on their M-14P?

We have done quite a lot of research into this whole issue of automotive and unleaded fuels with these Russian engines. I attach a paper that we prepared which might give people more information.



RICHARD GOODE AEROBATICS

Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK

Tel:  +44 (0)1544 340120   Fax:  +44 (0)1544 340129

e-mail: richard.goode(at)russianaeros.com

www.russianaeros.com

WORLD LEADERS IN RUSSIAN SPORTING AIRCRAFT & ENGINES

In partnership with Aerometal Kft, Hungary.



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Use_of_motor_fuels_in_Russian_engines.pdf

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hess737(at)aol.com
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Posted: Wed Dec 08, 2021 2:27 pm Post subject: Anyone with UL94 experience on their M-14P?

I've run my M-14P on both high test and low test MOGAS for years with zero issue

 

   Richard Hess

   Cell 404-964-4885

 

 

 

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yakflyr

Joined: 10 Mar 2009
Posts: 24

Posted: Fri Dec 10, 2021 9:48 am Post subject: Re: Anyone with UL94 experience on their M-14P?

Thanks Richard, that's great to know.  Quick follow up question, do you have the regular pistons or high compression pistons?

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richard.goode(at)russiana
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Posted: Fri Dec 10, 2021 10:50 am Post subject: Anyone with UL94 experience on their M-14P?

The simple fact is that no one has done extensive research on this, but my strong advice, if you have high compression pistons, particularly coupled with a PF supercharger, is to increase the octane rating of the fuel. Either by mixing in 100 LL or with the octane boosters that are available for the automotive racing industry. 

RICHARD GOODE AEROBATICS

Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK

Tel:  +44 (0)1544 340120   Fax:  +44 (0)1544 340129

e-mail: richard.goode(at)russianaeros.com

www.russianaeros.com

WORLD LEADERS IN RUSSIAN SPORTING AIRCRAFT & ENGINES

In partnership with Aerometal Kft, Hungary.



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yakflyr

Joined: 10 Mar 2009
Posts: 24

Posted: Fri Dec 10, 2021 11:17 am Post subject: Re: Anyone with UL94 experience on their M-14P?

Thanks Richard - I am running into an issue where my home airport and next closest airport is getting rid od 100LL and moving to 94UL, so I am considering my choices.  Might have to let go of my 55M after 17 years of ownership

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