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don't forget echo!

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Old 04-18-2003, 02:12 AM
  #26
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Default Dont forget Echo

We have a few laying around and I just thought I would help you guys out. I havent found another commercial engine out there that will perform as well as the Echo and I have tried them all. Ryobi, weed eater, stihl, ect. I am new to RCU so I dont know how to attach pictures. I wanted to show you a step by step procedure with pictures. The engine weight I quoted was with a battery ignition. With flywheel and coil its 3lbs 2 ounces. BTW the maneto version is what I fly for cross country events.

Keith
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Old 04-18-2003, 02:15 AM
  #27
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Default Dont Forget Echo

I will have something to show on the 30cc soon. We have so many projects in the skunk works its hard to know which one comes first. Our main focus is on getting the 110 in production.


Keith
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Old 04-18-2003, 02:22 AM
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Default don't forget echo!

someone please post the routine for posting pictures for this man!,preferably on this thread as I would like to know the details as well.

BME: got my juices flowing even with the 3 lbs 2 oz! Going for simplicity and reliablity here in the outback!
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Old 04-18-2003, 04:10 AM
  #29
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Default don't forget echo!

A 30cc powerhouse sounds like a winning ticket. I like the Poulan chainsaws as they are well built and powerful, but everything smaller than the 46cc ends up weighing about the same as the 46cc, so I saw no point of converting a smaller Poulan. Might as well do the 46cc if weight is the same. BUT... I would really like a lightweight gasser that'll do a 1.20 aerobat justice, which is why I've been eyeing the Echo 30cc.

Sure I can get a lightweight made-for-RC gasser like the ZDZs or MVVS, but conversions are just so much more fun - even if most of the work is done by somebody else.
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Old 04-18-2003, 12:20 PM
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Default pics would be great!

first you need a useable pic, 72dpi resolution jpeg at no more than 700x700 pixels is good

don't use the quick reply at the bottom of the thread, click the "post reply" button and go to the full featured reply.

throw in lots of smilies- :stupid: :thumbdown :thumbup: :sunsmiley :drowning:

go to "attach file" , click the browse button , get the name of your pic to show up in the "file name"bar and click the open button

submit reply

if i can do it ANYONE can!
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Old 04-18-2003, 12:43 PM
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Default engines & photos

Zagnut: I think what we need is a explanation on how to shrink the photos to the send-able size. I suppose a person can send a photo to a person who has a computer and skills to do so. Then re-send it to RCU??? What do you think? Capt,n
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Old 04-18-2003, 01:17 PM
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Default don't forget echo!

capt,n
i'm basically computer illiterate so the only help i can offer is what works for me.

for scanned pics i use photoshop, my bro showed me the basics .

my pc-cam takes snapshots that are sendable as is but these are low qual and don't show good detail.

dave
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Old 04-18-2003, 05:18 PM
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Default don't forget echo!

Captainjohn,

You need a photo editing program to be able to crop an image down to 700 X 700 mp or 70kb file size. There are several programs available, but the only one I am familiar with came as a freebie with my scanner. It is Ulead Photoimpact SE.

If you have something special you want to post, send it to me at:

wvarn1957@ev1.net and I will edit it to the proper size for posting on RCU.

Will
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Old 04-18-2003, 11:51 PM
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Default don't forget echo!

Will: I sent you a photo to test on resizing. I hope you got it. Thanks Again Captinjohn
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Old 04-19-2003, 01:37 AM
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Default don't forget echo!

ZAGNUT:

Is this what your Echo looked like prior to paring off the trimmer parts??? This trimmer is labeled Tiger, but has a Kioritz engine and looks identical to the Echos.

Thanks.
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Old 04-19-2003, 04:17 AM
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Default don't forget echo!

Kioritz is the OEM for many different brands of lawn care power equipment, including their own brand. Never heard of Tiger, though. Must be an older brand name.
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Old 04-19-2003, 10:11 AM
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Default don't forget echo!

volture, like volfy said , there gobs of companies that use the echo/kioritz trimmer engines. over here pro gardeners call them the "rolls-royce" of small trimmers, even very old ones just keep going. yours looks like it has a 4 bolt case and a 3 bolt starter housing which is opposite of mine. the 25.4cc has a 4bolt case and 4 bolt starter. otherwise your trimmer looks the same, identical throttle linkage and flywheel housing and woud be a breeze to convert.

dave
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Old 04-19-2003, 03:07 PM
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Default resizing JPEG'S

JPEG's can be resized with PAINT within windows. Start Paint and load the image you wish to resize. Click the "IMAGE" tab and select "stretch/skew" from the drop down list. From the pop up box, fill in the vertical and horizontal fields as 50% or any number you choose under 100 to shrink that percentage. after you are satisfied re save as a JPEG.

Photo shop works better but not everyone has it.

I hope this helps!
Mark
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Old 04-19-2003, 03:56 PM
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How does one convert bitmap photos into j-peg...is it possible? Thanks Capt,n
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Old 04-19-2003, 04:33 PM
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Default captinjohn

You can do that with paint also. When you are done editing the image, click "SAVE AS", enter the file name you wish, then select the file type from the pull down menu under the file name box.

Regards
Mark
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Old 04-21-2003, 02:30 AM
  #41
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Default Dont Forget Echo

Hey guys I am doing a new conversion hop up on the Echo 23.6cc engine. I have installed a crank shaft and piston from a 25.4cc engine in the 23.6cc crankcase and cylinder with the timing mods I mentioned before. This new crank gives the engine a 2mm stroke increase which is just right after you modify the piston to give maximum compression and now it will still travel down to the bottom edge of the exhaust port. I hope to gain as much as 400 rpm more with this set up as compaired to the standard stroke 23.6cc engine which is turning a 17x8 APC at 8500 rpm.


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Old 04-21-2003, 06:39 AM
  #42
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Default don't forget echo!

Keith, is the porting in the 25.4cc that much worse than the 23.6cc? Could you not do the same CR mods to the 25.4cc cylinder? Thanks.
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Old 04-21-2003, 09:48 PM
  #43
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Default Dont Forget Echo

You could do the same mods to the 25.4cc engine and gain power over the stock form. In my experience no mods I did to the 25.4cc equaled the power of the 23.6cc. When you drop the cylinder down to raise the compression you are also giving up your port time area. You gain it back by cutting the exhaust and intake but your transfers have lost area. With a stroke increase you can get this back plus gain some cc's and power.



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Old 04-22-2003, 02:39 AM
  #44
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Default don't forget echo!

Keith,

I have a couple of Echo 38 cc that I got in a county surplus auction. Would the modifications you are describing be applicable to the 38?

thanks,

Will
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Old 04-22-2003, 02:44 AM
  #45
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Default Dont Forget Echo

Not sure which 38cc engine you have. Can you post a picture?


Keith
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Old 04-22-2003, 12:06 PM
  #46
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Default don't forget echo!

Is Echo the only brand of equipment with the echo engines? What models of equipment have the best engines for conversions? I'm looking for something comparable to a 46cc poulan. Something that can be used with the stock ignition preferably.

Thanks,
James
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Old 04-22-2003, 03:25 PM
  #47
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Default don't forget echo!

Echo is just a weedwacker manufacturer among other things. Kioritz is the engine they use.
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Old 04-22-2003, 04:03 PM
  #48
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Keith,

The engine came from a heavy duty trimmer. It has a bore of 1.492" and a stroke of 1.25". By my calculations that works out to a displacement of 2.18 ci or 35.7 cc. On the back flange of the cylinder casting it has "38"
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Old 04-22-2003, 04:05 PM
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Attached is the image of the back of the cylinder.
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Old 04-23-2003, 01:03 AM
  #50
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Default Dont forget Echo

Not sure which engine that is from but I can see no reason why it couldnt be used with the same mods as the 23.6cc engine. Looks like the 25.4cc engine. Do you know how old it is or what carb was on it?


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