Welcome to Club SAITO !
I had a 80 that I got fro a guy. They were so concerned about the high compression that they tried to lapse the piston. Now get me if I am wrong but it’s a ringed engine that doesn’t help.
that’s ok I got a great running engine for a decent price even back in the day.
that’s ok I got a great running engine for a decent price even back in the day.
Interestingly back in early 2000 CH sold shims for the 120 hc and 150hc. Not sure about the 80 hc.
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Only if I got it lean, when it starts rattling, better make that your peak. With a MA Scimitar 13x6 it would go to 9,900 but 9,750 was much smoother. Of course that was with a Fox Miracle plug.
Define necessary. Some folks are happy without them. Not sure how many of them have tried both ways, but they already "know"
i have run th HC 80 both ways on GLOW , 14% nitro and settled on an .008" brass shim.
Surely won't be taking it out or resorting to hauling a CDI around either. The HC 150 in my Rascal 110 is sporting a .010" shim. Another 80 that ran better shimmed was the Enya 80. Tuning isn't always about squeezing the last 200 RPM out of an engine.
Last edited by Jesse Open; 11-16-2019 at 06:34 AM.
Agreed, suited to use is the goal. If I lived across the pond where high nitro is expensive and in some cases not available I'd be buying those early HC engines. If had one here in the US I'd shim up the cylinder/head to run more user friendly 10-15% nitro.
I like to tinker and hotrod things, model engines included. Rarely do I desire to go through the effort of squeezing the last 200 rpm out of an engine, my modded 82 is no exception. The PM Sbach 342 airframe won't accommodate a larger engine case without extensive rework and the stock 82 provided marginal power to pull out of hover. Raising the CR to 11.75, adding a custom muffler and 100 carb yielded almost 700 rpm gain with 14x6 prop and 15% fuel. Those are simple mods, no squeezing per se. That said, if I could have conveniently fit a 100 in the Sbach I would have. Alternatively if I had the cash flow for 30% nitro I may have gone that route.
The 82 I modded came out of a H9 46 size Red Tail P51. Thought that was overkill, so I swapped in a 62. With me it's not all about shoehorning in the biggest engine either. The P51 flies and lands much better with the lighter 62 and still has has enough power for multiple big loops when I'm good enough on the sticks to keep it smooth.
I like to tinker and hotrod things, model engines included. Rarely do I desire to go through the effort of squeezing the last 200 rpm out of an engine, my modded 82 is no exception. The PM Sbach 342 airframe won't accommodate a larger engine case without extensive rework and the stock 82 provided marginal power to pull out of hover. Raising the CR to 11.75, adding a custom muffler and 100 carb yielded almost 700 rpm gain with 14x6 prop and 15% fuel. Those are simple mods, no squeezing per se. That said, if I could have conveniently fit a 100 in the Sbach I would have. Alternatively if I had the cash flow for 30% nitro I may have gone that route.
The 82 I modded came out of a H9 46 size Red Tail P51. Thought that was overkill, so I swapped in a 62. With me it's not all about shoehorning in the biggest engine either. The P51 flies and lands much better with the lighter 62 and still has has enough power for multiple big loops when I'm good enough on the sticks to keep it smooth.
Last edited by Glowgeek; 11-16-2019 at 08:20 AM.
I am mating that piston to a brand-new, dual plug cylinder from the FA-325 radial engine.They should play together pretty well, as a 65 single.
The Futaba tach came from the estate of an early mentor, Gene. He was both a ham radio buddy and flying buddy. Did CW ( Morse code)!on the ham bands at very high speed, like 55 words per minute. Got me started on Guild acoustic guitars too. He would appreciate you having it, enjoy and just think Gene.
I miss him a lot, and those earlier flying adventures of the 1960s 70s and 80s. The Golden Era!
Last edited by Jesse Open; 11-16-2019 at 07:46 PM.
Dave i hope both you and Geri are well at the moment.
Who thinks this stuff will make good after run oil for your saito engine?
Gary i like positive people who look back at good times with good thoughts, the cynics might say that all you are suffering from is 20/20 hindsight looking back through rose tinted lenses, but .... them.
Times are times, it was good people that made the difference. Rose colored glasses won't change the current on-going dumbing down of this once great hobby.
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Thanks Pete, I am well and she waiting to hear from a Dr. as to what to do next. That neighbor you mentioned moved to Tennessee about a year before we moved to Colonial Beach. I didn't realize that prop had gone over to his place. I guess props can fly pretty well without a plane.
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It was brand new, I got it from a retired dentist in the north east.
The 65 reviewed in April of 1986 had the compression listed at 10.5 called Saito 65
The next, undated is listed at 12.7, called Saito 65=2
The third is listed at 8.6, called, Saito 65 updated.
http://sceptreflight.com/Model%20Eng...o%20FA-65.html
The 65 reviewed in April of 1986 had the compression listed at 10.5 called Saito 65
The next, undated is listed at 12.7, called Saito 65=2
The third is listed at 8.6, called, Saito 65 updated.
http://sceptreflight.com/Model%20Eng...o%20FA-65.html
Last edited by Hobbsy; 11-17-2019 at 04:46 AM.
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Gary, that one got missed at Sceptre Flight, the two they did test had 15.5 to 1 compression for the first and 12.5 to 1 for the second. It would be nice if the articles had dates on them, only a few do.