skymad69 Posted September 14, 2012 Share Posted September 14, 2012 Hi, Can anyone tell me if the PXP corsair 175 are any good? I'm looking at a new one in the Kangoog ultra frame. Do they have any problems? Cheers! Quote Link to comment Share on other sites More sharing options...
bigpapa Posted September 14, 2012 Share Posted September 14, 2012 Its a pretty old engine. Reliable but thirsty. Probably a bit heavy for the power by todays standards too. Never had any issues with mine (apart from self inflicted ones!). Quote Link to comment Share on other sites More sharing options...
dan_p Posted September 14, 2012 Share Posted September 14, 2012 Great power, great reliability, but it is thirsty. Never had a single problem with mine. I can't believe i just said that out loud! I'm touching wood spitting on the ground and have all my fingers crossed. Quote Link to comment Share on other sites More sharing options...
skymad69 Posted September 14, 2012 Author Share Posted September 14, 2012 Ok thanks guys, I cant find much info on their review, I did find that people say they are hard to start.. problems with flooding?? So the new Corsair 175 M25Y is still the old engine? I'm having a look at a brand new RS Ultra in a couple weeks that I might be able to get reasonably cheap around $5400US. It is the clutch engine, wooden prop, Tiny Tacho. Cheers! Quote Link to comment Share on other sites More sharing options...
dan_p Posted September 17, 2012 Share Posted September 17, 2012 Looking at a couple of websites it looks like they are now offering a clutch which may be why its stated as new? Also looks like newer M25Y may have different crank to facilitate the clutch. Below is UK dealer and servicing link. http://www.conairsports.co.uk/cors-air.html JPX Italia http://www.jpxitalia.com/?lang=en American dealer Site with good info www.aerocorsair.com Quote Link to comment Share on other sites More sharing options...
spigot Posted September 17, 2012 Share Posted September 17, 2012 Have a closer look at the con air site The M19y Black Magic is the clutched version. its also only 120cc The M25y Black Devil comes in electric or manual versions at 172.5cc 22hp The old version you refer to is the M21y which is still 172.5cc 21hp .But Heavier due to a bulky engine mounting cast and standard flywheel. Been running my M25y for 400 hours on chainsaw oil without any major issues. Problems so far.... The internal flywheel and stator attracts metal dust like a hoover, causing ignition and charging problems (Easy to clean if your mounting allows). The solder joints on the stator required a little going over. Flooding was an issue using a primer bubble. So Ive now fitted a sliding choke from a Parajet Yup its a little heavier than the newer standards. but I call that build quility Colin B Quote Link to comment Share on other sites More sharing options...
skymad69 Posted September 18, 2012 Author Share Posted September 18, 2012 Thanks Colin, Sounds like fairly minor things to fix after 400hrs What size prop are you using and what thrust are you getting from it? Cheers! Quote Link to comment Share on other sites More sharing options...
bholleran Posted September 18, 2012 Share Posted September 18, 2012 I was running the M21Y older version for a while (Still in the garage) and it is a great engine, very reliable. and only a little heavier than the M25Y. I was running a 122cm prop and getting about 75kg of thrust from it. I was not getting great economy from it but I weighed 20st at the time flying a Gin Bolero III. I think I got in the region of about 6 - 6.5 ltrs per hour. I would think economy could be as low as 4 - 4.5 at normal weights and good wing choice. Quote Link to comment Share on other sites More sharing options...
spigot Posted September 18, 2012 Share Posted September 18, 2012 Spinning a parajet compact 3 blade prop @ 99cm 2.7-1 ratio (I think) there are 4 different ratios available. Tested at 55kgs thrust. For more useless info I've used, BR7ES plugs changed about 9 times. 6 drive belts. 3 walbro rebuild kits (cut off the nipple on the rubber diaphragm) 2 plug caps. 1 starter motor bendix (the spring had sprung itself) Colin B Quote Link to comment Share on other sites More sharing options...
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