Hi,

I am new to this forum, completing wings of RV7A, studying engine, props
etc...

Not crazy about old technology, specailly that at 4 times the price, it
sounds more like antiquity.

The Egg Subaru H6 is too heavy I think and also getting a bit expensive? The
RV7A does not have a strong front gear.

Getting very keen on the 13b, I see 3 possibilities:


A) Renesis from Bruce + RD1C & EC2 from Tracy + cooling (unknown yet) +
exhaust (unknown either) = approx 12.5K and  215hp

B) Older 13b from Bruce + RD1A & EC2 from Tracy + cooling (unknown yet) +
exhaust (unknown either) = approx 10K and  180hp

C) Older 13b own rework per videotape + RD1A & EC2 from Tracy + cooling
(unknown yet) + exhaust (unknown either) = approx 7.5K and  180hp


I am not too keen on option C, I saw a couple of cases going back to option
B) after having tried C)

Now between A) and B)
(A) has a clockwise prop rotation and is brand new engine, with more power,
but for the rest I do not know about yet,
cooling and exhaust, how do A and B compare?

Thanks,


JP

You will have a little easier time with the exhaust and a wider
selection of props with option A) Also parts will be easier
to obtain in the future.

Paul Lamar

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