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In a message dated 8/24/01 6:33:13 PM Eastern Daylight Time, [EMAIL PROTECTED] writes: > There is at least one STC for putting an O-200 crank in a C-85. Does this > make the engine an O-200? No, if the data plate says C85, then that's what it is. Same RPM limitations, etc. still apply. > I think the O-200 and C-85 have the same bore, > but I assume a different stroke. Correct. > Will it require a prop or other > changes? No, no prop change or other changes are required. However, there is a loophole in the STC. The static RPM limits for the airframe do not change. The increased stroke will raise the static RPM slightly, all other things being the same. This has the same effect as reducing the pitch on the prop, so you will see better climb performance, with no change in cruise. Or, you can repitch the prop to get back to the same static RPM and see better cruise speeds at the same RPM as before. Your choice. > Will this add a lot of cost to the rebuild? Will what add to the cost? First, you need an O200 crank, rods and pistons. (Pistons were already in the budget, though, right?) Then, there's the prop repitch, if you choose. That's it. If you're faced with replacing a C85 crank, then this is a very cost effective way to do it, with an added bonus of more power. John ==^================================================================ EASY UNSUBSCRIBE click here: http://topica.com/u/?bz8Sid.bAhN69 Or send an email To: [EMAIL PROTECTED] This email was sent 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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