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Manakin-Sabot Va
Joined Apr 2006
645 Posts
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Re: Real world RPM
ZDZ 80 (old style) with a mejzlik 26-10, 6380 Hot.
Custom short header and the "big can" from RC Showcase (they sell a smaller one). About 200' ASL, 70 degree temps and mild humidity. Jamie |
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Re: Real world RPM
DA 100 , MTW 75 , Mej 28 x 10
Motul 800 @ 50:1 , after 15 litres . at sea level 6150 RPM Up date - After 25 litres now 6350 RPM ------------------------------------------------------------------------------------------- Up date Now with K&S 1060 pipes , 300 flights + 6660 rpm , it rips |
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Malaysia
Joined Mar 2006
286 Posts
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Re: Real world RPM
DA50R, on break in with 30:1 mineral oil, Menz 22x8, standard DA side mounted muffler, 7251 peak rpm, 2000 idle at the moment.
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Re: Real world RPM
ZDZ 80 RV-J "Super"
89 octane 40:1 breakin oil 4 tanks of fuel through it 3W 26x10 prop Supersonic Wrap around pitts muffler 6200 RPM |
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Re: Real world RPM
3W157CS
KS1090's KS Flex Headers 12" from flange to outlet Mejzlik 28.5x12 3 Blade - 6200 RPM's (very fast, fast downline speeds) AirModels 32x12 2 Blade - 6600 RPM's (incredible pull, very loud, fast downline speeds) Mejzlik 32x10 - 6350 RPM's (great pull, loud, reasonable downline speeds) PT Models 32x12 - 5900 RPM's (great IMAC prop [reasonably quiet], needed hub and tip balancing) PT Models 32x10 - 6275 RPM's (Slightly quieter than the Mezlik 32x10, needed hub balancing) Altitude 1700' Temp 100 F Pennzoil Air Cooled 40:1 Fromeco Tach ------------------------------------- Throttle response is very smooth with no flat spots or peaks. The motor runs like it did with MTW cannisters except it gained 400+ rpms. Rich Sornborger Gilbert, AZ |
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Re: Real world RPM
DA 150
K&S 1090 31x11 Prince prop Lawnboy, regular unleaded 5th flight engine hot 5800 rpm Plane hovered at 3600 rpm |
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United States, CO, Colorado Springs
Joined Apr 2006
342 Posts
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Re: Real world RPM
Fox 3.2 with pitts muffler. NX 22-8 @ 7300RPM
40:1 mix and 89 octane. Zenoah G-62 w/C&H ignition and Slimline pitts. 40:1 mix 89 octane NX 22-10 7300RPM APC 22-10 7580RPM Menz S 22-10 7100RPM Menz Ultra 22-10 7400RPM MSC 22-10 7150RPM Same engine with Macs Tuned pipe and header NX 23-10 7300RPM Friggin' ballistic on my 16 pound Extra |
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United States, OK, Bethel
Joined Jan 2006
5,049 Posts
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Re: Real world RPM
Ok, I am probably out of the box a little and will probably get harrassed about it cause I dont run cans. Have a brand new DA 150, not even 2 gallons through it yet (almost). I am running standard mufflers with a 32X10 Meizlik. What RPM's should I be at. Ran it up the day I put 5 flights on it and it was turning 5400 on the ground. After flying I noticed a ton of exhaust splatter under the plane when I was cleaning it. Should I crank down a little on the high needle or leave like it is for break in. With it right now it pulls the plane around real good.
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