Convert Cherokee 140 to 180?

I don't think there is one for the 140. That STC is based on the fact that
later Warrior II's (1982 + I believe) have that gross weight of 2440 out of
the factory with the same specs. The STC (from a place at my home
airport--FRG) is purely a paperwork STC--no modifications are done on the
aircraft.

Marco Leon


"xyzzy" wrote in message
...
Bob Noel wrote:

In article ,
Tim Long wrote:


Planning ahead, we've thought of a few options:

1 - 160 hp conversion (this is almost the minimum we'd do)
2 - Powerflow exhaust (article in Plane and Pilot claims 20% power
improvement - can it be combined with #1?)
3 - 180 hp conversion

Anybody know about praciticalities, costs of #3 above? I know it would
require extra $$ for dissimilar engine exchange, STC costs, and
cowling/engine mount mods.


#1 and/or #2 are not that expensive but wouldn't make the 140 into
a 160. That is, it is likely that a comparable 160 would sell for more
than a 140 converted to 160hp.


I know that some may say sell the plane and buy a 180, but we have a
plane
whose condition we know, it has a pretty fresh paint job, it has all ADs
complied with, and we just spent ~$7K for a panel mount GPS. We have
better
avionics than most and would hate to do the new buy thing and then spend
a
lot extra getting the plane's condition up to that of our current one.



(note: I own a cheroke 140)

One significant consideration is useful load. Do you just want the
speed
increase? There isn't any way to get a higher useful load.

Interesting, my club has Warriors that have an STC raising the MGW to
2440 lbs. There isn't a similar STC for the 140?