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09-07-2013 12:41 AM  4 years agoPost 1
junkpilot

rrVeteran

Alamogordo N.M.

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I have a 1005 with a G-23 engine. I live at 4700 feet above sea level. I think I need to install a bigger engine for better performance.
What other engines will bolt in without a lot of mods? I'm sure there have been succesful swaps and I would like to know about them. Thanks for all your help in advance; Junkpilot

When you fly JUNK it's hard to tell when you've crashed!

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09-07-2013 12:57 AM  4 years agoPost 2
Carey Shurley

rrElite Veteran

Orlando, FL - USA

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you can get modified motors for the PUH format in 23, 26 and 29 versions that will simply bolt in

see TRM Power, BH Hanson and HWC (century) websites for more information.

There are a lot of companies doing power modifications for zenoah motors, these guys are the high volume providers.

Proprietor - Gas Powered Helicopters

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09-07-2013 01:31 AM  4 years agoPost 3
Peterr

rrApprentice

Queensland Australia

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You could also fit this , http://www.davesmotors.com/ca370 or the 4 bolt version , to the engine you have , or probably just change the carb to a walbro 990 , or do the carb change as well as the bore up kit.....

Lots cheaper , maybe not quite as smooth a motor as a modded one though ...

E ,N ,G Whiplash's;Spectra G's;Stratus;E&N Razor,Fury 55;Furion6;TSA 600N, 700N, 700G;; Be

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09-07-2013 03:50 AM  4 years agoPost 4
geomecc

rrKey Veteran

Long Island ,NY

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if u go with a bore up kit be prepared for a lot of vibes as its not balanced with a bigger piston. I would explore the suggestions Carey made. I would call bh hanson and explain ur situation they might be able to mod the engine u have already

R I P Roman Jr. Team SKOOKUM SRW EFC

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09-08-2013 10:51 PM  4 years agoPost 5
junkpilot

rrVeteran

Alamogordo N.M.

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Need more power
Thanks guys for all the advice!
Junkpilot

When you fly JUNK it's hard to tell when you've crashed!

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09-09-2013 04:24 PM  4 years agoPost 6
Chris Bergen

rrElite Veteran

cassopolis, MI USA

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Peterr, actually you would NOT be able to bolt up that cylinder to the older G23 PUH engine.

Besides the 2 bolt pattern difference (yes there is the 4 bolt version but that bolt pattern is still different), the porting doesn't match, the skirt on the cylinder will NOT slide into the crankcase.

Many years ago, we machined out a G23 crankcase to match the cylinder head from an R/C style G230 engine. Yes it worked, until we finally got hold of a stock G231 then a G26 when they came out.

Better to order the complete motor from your favorite source unless you have the machining capabilities..

Chris D. Bergen

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09-09-2013 06:04 PM  4 years agoPost 7
turboomni

rrProfessor

East of the Equator

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I own an old 1005. A 231 stock could be ok as usually they come pretty well balanced from what I hear from the factory. If you have the original gear ratio of 6.43 to 1 I would suggest going with a 26cc but it should be balanced/ upgraded by Hanson or Toxic. The gear ratio is not the greatest and benefits from an engine with more torque.

Setup is everything, All my heli's can fly far better than I can pilot them

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