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Old 10-02-2011, 06:18 PM
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3w55

Does anyone know who ports 3w engines?
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Old 10-02-2011, 07:07 PM
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http://www.aircraftinternational.com/
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Old 10-02-2011, 07:25 PM
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I called Gerhard. They don't do porting. All he does is sell parts and engines
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Old 10-02-2011, 08:17 PM
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Originally Posted by wolfgang clemens View Post
Does anyone know who ports 3w engines?
or maybe just swap jug and piston for CS version and replace bearings and ballance crank/rod
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Old 10-02-2011, 08:21 PM
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Originally Posted by airboss/oc View Post
or maybe just swap jug and piston for CS version and replace bearings and ballance crank/rod
Sounds like a new engine is cheaper. 3wparts are expensive and cs parts are even more
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Old 10-02-2011, 08:31 PM
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Sorry, I thought it was a typo and you meant import.

What do you want to port it for, have you tried a tuned pipe?
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Old 10-02-2011, 11:08 PM
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Sounds like a new engine is cheaper. 3wparts are expensive and cs parts are even more
get a DA85
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Old 10-02-2011, 11:26 PM
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get a DA85
If you buy it for me I'll put it in
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Old 10-02-2011, 11:27 PM
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Originally Posted by Jedijody View Post
Sorry, I thought it was a typo and you meant import.

What do you want to port it for, have you tried a tuned pipe?
It's ona topflite p51. No room for a tuned pipe
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Old 10-03-2011, 12:59 AM
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Take it to a local gokart shop / engine builder .
Dont bother with the chainsaw shops most only buy, sell, service .
The gokart guys know how to get all the power you will ever need .

Stu
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Old 10-03-2011, 06:15 AM
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Exactly which engine do you ahve right now and what is the performance currently and what are expecting to get out of it..

I have a 3W-55Xi and am very impressed with it powerwise compared to other 55cc class engines.

Rick
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Old 10-03-2011, 08:46 AM
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Exactly, I would think a healthy 55Xi should fly the wings off a TF P51.
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Old 10-03-2011, 09:13 AM
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Originally Posted by Stu_D View Post
Take it to a local gokart shop / engine builder .
Dont bother with the chainsaw shops most only buy, sell, service .
The gokart guys know how to get all the power you will ever need .

Stu
bingo
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Old 10-03-2011, 05:22 PM
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Originally Posted by Rickster View Post
Exactly which engine do you ahve right now and what is the performance currently and what are expecting to get out of it..

I have a 3W-55Xi and am very impressed with it powerwise compared to other 55cc class engines.

Rick
It's a 3w55 and I'm running a apc 22x10. On the ground it turns 6948rpm I want another 500 to 800 rpm
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Old 10-03-2011, 06:22 PM
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Originally Posted by wolfgang clemens View Post
It's a 3w55 and I'm running a apc 22x10. On the ground it turns 6948rpm I want another 500 to 800 rpm
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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Last edited by aussiesteve; 10-03-2011 at 06:32 PM.
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