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[EMAIL PROTECTED] wrote: ----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]---- To convert to a 85 hp you will need not too much. 1 the kit with new jets for the carburetor 2. a new engine placard from Continental plus paperwork I think the engine placard can be modified with a metal stamp. Mine was done that way and has been eyeballed by a lot of IA mechanics. (Ditto the aircraft dataplate and the conversion from 415-C to 415-D.) 3. rework the prop to a smaller one down to 71 inch from 73 4. mark your tach with the new limits 5. Mark your POH for the new engine (I hope I did not forget something) Benefits: Engine will run faster, use more Gas and the cruise performance is slightly better - 4-5 more MPH. I don't think one would climb better, since the 85 horses are developed at over 2500 RPM which I never saw on climb out in my coupe. Hartmut N3330H The prop change lets the engine develop more rpm, hence more power on climb. You do, I think, get more of the benefit, minimal as it is, in climb. Be aware, Fred Weick was also the leading small plane prop designer. His choice of a prop for the C-75 is very good, and the prop for the C-85 is not nearly so well chosen. I've heard repeatedly that the horsepower upgrade and prop change don't get you much. Ed Burkhead N3802H, ERCO 415-D http://www.ercoupe.org Kenneth Burnett wrote: ----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]---- I need your input into what is requried to change 75hp cont.to 85hp .any help will be greatly appreciated.Will my 415-C perform better after this conversion. THANKS ==^================================================================ This email was sent to: [EMAIL PROTECTED] EASY UNSUBSCRIBE click here: http://topica.com/u/?aVxiLm.aVzvvT Or send an email to: [EMAIL PROTECTED] T O P I C A -- Register now to manage your mail! http://www.topica.com/partner/tag02/register ==^================================================================
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