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Moving to new 75-85CC gas/Recomendations

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Old 06-26-2006, 11:52 AM
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ron9844
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Default Moving to new 75-85CC gas/Recomendations

Wanting to move up from the 50Cc size (running DA now) to the next level and have been looking at ZDZ(Super 80), 3W,ETC. Looking for Pro's or Cons
Old 06-26-2006, 06:23 PM
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flyinrazrback
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Default RE: Moving to new 75-85CC gas/Recomendations

All the new 80s run great and are a definite step forward from the older ones, I dont think you can find fault with either the new zdz or 3w.
Old 06-26-2006, 10:00 PM
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shakes268
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Default RE: Moving to new 75-85CC gas/Recomendations

I just skipped the 75cc range and went straight to 100cc. I figured if I bought a 75cc I'd still want a 100cc
Old 06-27-2006, 09:49 AM
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Steve
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Default RE: Moving to new 75-85CC gas/Recomendations

Go 100
Old 06-27-2006, 10:02 AM
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jongurley
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Default RE: Moving to new 75-85CC gas/Recomendations

DA100 to be specific
Old 06-27-2006, 12:01 PM
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rmh
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Default RE: Moving to new 75-85CC gas/Recomendations

If I asked for a recommendation on a good restaurant - I would expect to hear feed back on restaurants .
The question was re 75-85 cc engines
Thre are these engines in that catagory
the EVO the ZDZ and the 3W
Apparantly no one else wants to get into the act-- don't blame em.
these engines have a terrific advantage over the 100cc engines
far less cost $600-$725 for the engine vs $1150 for 100s typically
only one muffler req'd
easier to instal inmost instances
power -depending onexhaust system equal to most any 100 cc
Why?
the piston displacement relative to friction losses are much better .
Hope this helps.
Old 06-27-2006, 05:23 PM
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bodywerks
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Default RE: Moving to new 75-85CC gas/Recomendations

The EVO is the heaviest of the bunch, though - weighs almost as much as a DA100. I don't have experience with this engine
The ZDZ is an absolute friggin powerhouse and probably the best power of the bunch, but finicky to tune unless you're Dick Hanson and, from experience from friends with them, they are hard-starting.
The 3W is probably your best all-around. The price is right, it's only a few ounces heavier than the ZDZ, it's easy to start, easy to tune, has great power and great torque. It would be my "first larger gasser" recommendation.
Old 06-27-2006, 05:46 PM
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imacflyr3
 
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Default RE: Moving to new 75-85CC gas/Recomendations

I gotta step in here! I'm running the ZDZ80RV. It's been flawless to run. I've never even touched the needles in the 2.5 seasons I've been flying it!! It's not "hard starting" at all if you do it the right way.

Ignition off, full throttle, choke on, flip the prop through 6 times
Ignition on, low throttle, choke off, flip the prop 'til she fires (usually about 3 to 4 times!)
Go Fly!!

I'd say, buy what you can afford and fly the heck out of it!!

Gary H.
Old 06-27-2006, 06:26 PM
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rmh
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Default RE: Moving to new 75-85CC gas/Recomendations

the starting thing was a problem for some --on early on engines --it centered on the carbs used . these things are as mass produced as gum drops and just as varied.
First hand info:
I have replaced carbs on "hard starting" engines -for others - the problems went away .
the first carbs -Bings - really were dicey about which ones choked well - on some 40 cc engines a particular model carb from Walbro was also a chancy thing
At this point in time -there is no reason to have a hard starting engine -
If the carb is the proper one - and you use the very straightforward starting technique repeated here many times for gassers - they start as easily as any engine
Old 06-28-2006, 12:10 PM
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dirtybird
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Default RE: Moving to new 75-85CC gas/Recomendations

Going from 50 to 80. The props will cost twice as much.

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