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Old 10-03-2011, 06:30 PM   #16
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if you want more speed, try a different prop. a good carbon fiber prop should outperform that apc.
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Old 10-03-2011, 07:43 PM   #17
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Quote: Originally Posted by aussiesteve
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Wow, Can I get you to set up my engines for me? You must be one heck of an engine set up person. I have yet to see a walbro carbed 2 stroke retain an exact rpm reading down to the last digit, from one run to the next.

Having got that off my chest, why are you chasing rpm specifically? In the top end engines (one of which is the one you are posting about) you would do yourself much better to prop it to within the power band and use an appropriate exhaust system rather than messing with the porting. When you say you are chasing more RPM, why is that?
If it is because your plane isn't going fast enough for your liking, you may be more satisfied going to a higher pitch prop. If it is because you want an engine that absolutely wrings out and lets you go very fast, I would suggest you speak with Ralph Cunningham (Antique on these forums) and ask him his opinion on what to use as I know for sure he would be able to give some great advice. You can most likely sell the 3W to fund the new product.

Ok, that is my $0.02 (0.128 RMB)
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Old 10-03-2011, 07:46 PM   #18
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Quote: Originally Posted by jamesrxx951
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if you want more speed, try a different prop. a good carbon fiber prop should outperform that apc.
What would you suggest?
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Old 10-03-2011, 08:05 PM   #19
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APC makes CF props
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Old 10-03-2011, 08:05 PM   #20
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Ralph Goes by the name of "Antique" on these forums.

He is one of the most experienced Gas engine people for our hobby out there and he knows his performance engines very well. Many of the other experienced people have been started out by Ralph as he has been working on our engines for a very very long time indeed. There would be very few he hasn't experienced at some time or another.

I don't have contact details for him right here but maybe someone will be able to supply them to you.
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Old 10-03-2011, 08:11 PM   #21
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Quote: Originally Posted by aussiesteve
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Ralph Goes by the name of "Antique" on these forums.

He is one of the most experienced Gas engine people for our hobby out there and he knows his performance engines very well. Many of the other experienced people have been started out by Ralph as he has been working on our engines for a very very long time indeed. There would be very few he hasn't experienced at some time or another.

I don't have contact details for him right here but maybe someone will be able to supply them to you.
Thanks for the info
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Old 10-03-2011, 10:37 PM   #22
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Best prop for speed on a 55-65 cc engine is made by APC for our USRA G62 powered AT6s..A stock 62 with an open header turns 9000 in the air, the 3W should do as well.Take a ride to Rabbit Dry Lake near Victorville the weekend of 10-15 and see some 55-65cc P51s racing about 130 mph with these props...
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Old 10-04-2011, 05:12 PM   #23
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Quote: Originally Posted by antique
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Best prop for speed on a 55-65 cc engine is made by APC for our USRA G62 powered AT6s..A stock 62 with an open header turns 9000 in the air, the 3W should do as well.Take a ride to Rabbit Dry Lake near Victorville the weekend of 10-15 and see some 55-65cc P51s racing about 130 mph with these props...
Thanks for the info. I was planning on coming out anyway
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Old 10-06-2011, 01:39 PM   #24
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Look for us in the Wreckless Racing tent/s


Don Corum, Chuck Hebestreit, Rick Maida, Richard Verano, Loren Tregallas, maybe few more...
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Old 10-06-2011, 04:01 PM   #25
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Look for us in the Wreckless Racing tent/s


Don Corum, Chuck Hebestreit, Rick Maida, Richard Verano, Loren Tregallas, maybe few more...
Sound good. See you then
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