Community
Search
Notices
Gas Engines Questions or comments about gas engines can be posted here

3W 80i

Thread Tools
 
Search this Thread
 
Old 09-13-2005, 11:52 PM
  #1  
flyinrazrback
Thread Starter
My Feedback: (69)
 
flyinrazrback's Avatar
 
Join Date: Jul 2002
Location: Fort Smith, AR
Posts: 3,779
Likes: 0
Received 0 Likes on 0 Posts
Default 3W 80i

FYI, the 3w 80is (half of new 157s which are now being renamed the 160) are available now, AI has them and sure Cactus does or they are on th way, $675. Think I am going to pick one up, but what plane?
Old 09-14-2005, 12:16 PM
  #2  
flyinrazrback
Thread Starter
My Feedback: (69)
 
flyinrazrback's Avatar
 
Join Date: Jul 2002
Location: Fort Smith, AR
Posts: 3,779
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 3W 78!

Recommended props are 27x10, 28x8 and 28x10. Looks like this and the new zdz 80 should be on par with each other.
Old 09-14-2005, 04:28 PM
  #3  
vatechguy3
My Feedback: (11)
 
Join Date: Apr 2002
Location: Smithfield, VA
Posts: 1,056
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 3W 78!

34% planes plus extra!!

tony
Old 09-14-2005, 04:30 PM
  #4  
vatechguy3
My Feedback: (11)
 
Join Date: Apr 2002
Location: Smithfield, VA
Posts: 1,056
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 3W 78!

neither cactus or ai has the 80 listed. where did you get that price??

tony
Old 09-14-2005, 04:36 PM
  #5  
flyinrazrback
Thread Starter
My Feedback: (69)
 
flyinrazrback's Avatar
 
Join Date: Jul 2002
Location: Fort Smith, AR
Posts: 3,779
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 3W 78!

its on cactus home page (just a pic), got the price from AI. I am thinking a CHP Extra ARC for one, or if I get lucky find a NIB H9 Cap
Old 09-14-2005, 07:47 PM
  #6  
Diablo-RCU
Senior Member
My Feedback: (1)
 
Join Date: Dec 2001
Location: Hammond, IN
Posts: 3,262
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 3W 78!

It's a funny picture. Sometimes it's there, and sometimes it's not.
Old 09-14-2005, 08:25 PM
  #7  
flyinrazrback
Thread Starter
My Feedback: (69)
 
flyinrazrback's Avatar
 
Join Date: Jul 2002
Location: Fort Smith, AR
Posts: 3,779
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 3W 78!

it rotates between the 80i and the 157
Old 09-14-2005, 10:16 PM
  #8  
GoeKeli
My Feedback: (18)
 
GoeKeli's Avatar
 
Join Date: Aug 2002
Location: North Hollywood, CA
Posts: 3,713
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 3W 80i

FRB, what about the QQyak?

j
Old 09-14-2005, 10:28 PM
  #9  
flyinrazrback
Thread Starter
My Feedback: (69)
 
flyinrazrback's Avatar
 
Join Date: Jul 2002
Location: Fort Smith, AR
Posts: 3,779
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 3W 80i

I like lots of power, so probably a little smaller and lighter plane than the QQ, I want to limit it to 24.5lbs RTF less fuel to be in the ballpark of the power to weight I like. I will most likely go with the full length tuned pipe. I was thinking about the romanbuilt models 260, should be 22lbs with that setup
Old 09-15-2005, 12:01 AM
  #10  
rcdude7
Senior Member
My Feedback: (264)
 
Join Date: Apr 2003
Location: Great Mills, MD
Posts: 2,223
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 3W 80i

Boy, that figures........new 80cc and I just bought a 3W-75 from Gerhart this summer.

I wonder if the engine will also be available in the side carb style like the 75iUS.
Old 09-15-2005, 08:15 AM
  #11  
flyinrazrback
Thread Starter
My Feedback: (69)
 
flyinrazrback's Avatar
 
Join Date: Jul 2002
Location: Fort Smith, AR
Posts: 3,779
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 3W 80i

rear carb only
Old 09-15-2005, 11:07 AM
  #12  
RTK
My Feedback: (1)
 
RTK's Avatar
 
Join Date: Apr 2003
Location: Left Coast , CA
Posts: 4,890
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 3W 80i

razrback--Do you have any of the spec's on this engine??
Old 09-15-2005, 07:23 PM
  #13  
TooLy
Senior Member
 
TooLy's Avatar
 
Join Date: Dec 2002
Location: Tel Aviv, ISRAEL
Posts: 900
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 3W 80i


ORIGINAL: RTK

razrback--Do you have any of the spec's on this engine??
Coming soon at cactus aviation

Old 09-15-2005, 09:50 PM
  #14  
flier
My Feedback: (7)
 
Join Date: Nov 2002
Location: Spring Hill, Florida
Posts: 717
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 3W 80i

flyinrazrback check out Wild Hares new Cap.
Tom will be getting them about the end of this year.
Less than 21lbs. and about 90" W.S.
With a 80 up front it'll be a kick thats for sure.

Looks like the new 3W-80XI will almost keep up with the old ZDZ-80RV
Weight is about a half pound more, and just a little less power.

(Specs. taken from 3W web site)

3W-80 XI
Cylinder capacity: 4.76 cu.in
Power: 8.1 HP; 5,96 kW
Bore dia.: 1.97 in
Stroke: 1.57 in
Speed range: 1100-8500 rpm
Weight: 5.05 lbs incl. ignition
Crankshaft: 3 Ball bearings
Connecting rod: Needle bearings on both ends
Gasoline-Version: 1 : 50 - 1 : 80 Mix
Ignition: 6,0 V double ignition
Propeller 2-bladed / Ã* 2 pales: 26x10; 26x12; 28x10
Propeller 3-bladed / Ã* 3 pales: 22x12; 23x12; 24x10
Old 09-15-2005, 09:55 PM
  #15  
Antique
Senior Member
My Feedback: (4)
 
Antique's Avatar
 
Join Date: Jul 2002
Location: Somewhere, DC
Posts: 9,825
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 3W 80i

Check out the new case, comes apart at the bottom..looks great [8D]
Old 09-15-2005, 10:43 PM
  #16  
flyinrazrback
Thread Starter
My Feedback: (69)
 
flyinrazrback's Avatar
 
Join Date: Jul 2002
Location: Fort Smith, AR
Posts: 3,779
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 3W 80i

flier, I dont puch much faith in specs, point being my 106 was rated for a 28x10, mine and a friends pull 29x10s and 30x10 with authorty. I am sure the 3w 80i will be no exception. Should be equal to the new zdz in power give or take 100 rpm or so IMO. It doesnt matter, mine is getting a full length tuned pipe, and if I can get 6300-6400 out of a 27x10 menz or such, I will be happy with that. On the weight issue new zdz 80 weighs 80.4oz with ignition, and the 3w weight listed includes ignition for a total weight of 80.8oz, so its only .4oz heavier than the zdz.
Old 09-16-2005, 06:45 AM
  #17  
Scoubidou
Senior Member
My Feedback: (17)
 
Scoubidou's Avatar
 
Join Date: Jul 2003
Location: Boisbriand, QC, CANADA
Posts: 1,592
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 3W 80i

hum hum
i asked the 3W80 weight to Gerhard and it's 2380g=83.9 oz.
ZDZ80-RVJ, 2280g=80.4oz

According to 3W, the 80 turns a 3W 26 x 12 wood prop at 6,000 with
a LL size canister muffler.

They have not conducted any tests with a tuned pipe.
In most cases you pick up about 400 to 500 RPM with a tuned pipe.

Daniel
Old 09-16-2005, 06:54 AM
  #18  
rmh
Senior Member
 
rmh's Avatar
 
Join Date: Dec 2001
Location: , UT
Posts: 12,630
Likes: 0
Received 3 Likes on 3 Posts
Default RE: 3W 80i

Sounds like they may be in same ballpark-My 26x12 prop is a ZM and runs 6450 here .
So different brand props -different elevation-different exhaust setup.
Invalid comparison
Attached Thumbnails Click image for larger version

Name:	Db84719.jpg
Views:	18
Size:	45.4 KB
ID:	324705   Click image for larger version

Name:	Db85187.jpg
Views:	22
Size:	28.8 KB
ID:	324706  
Old 09-16-2005, 11:05 AM
  #19  
flyinrazrback
Thread Starter
My Feedback: (69)
 
flyinrazrback's Avatar
 
Join Date: Jul 2002
Location: Fort Smith, AR
Posts: 3,779
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 3W 80i

Scoubi, I used the numbers from 3ws website. Bottom line is they are both extremely close in power and weight, and one should be picked as what you have experience in, ie ZDZ or 3W. I am happy that 3w has an answer to the new zdz, I wish the same could have been said about DA.
Old 09-16-2005, 11:16 AM
  #20  
Scoubidou
Senior Member
My Feedback: (17)
 
Scoubidou's Avatar
 
Join Date: Jul 2003
Location: Boisbriand, QC, CANADA
Posts: 1,592
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 3W 80i

3W is always very safe when posting RPMs. The 3W80 is surely a strong one too.
Old 09-16-2005, 11:55 AM
  #21  
flyinrazrback
Thread Starter
My Feedback: (69)
 
flyinrazrback's Avatar
 
Join Date: Jul 2002
Location: Fort Smith, AR
Posts: 3,779
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 3W 80i

The numbers I was referring to was the weight numbers on 3ws website. Both appear to be great motors. What is sad is there a ton of people who will not try either because they only fly DA, and will wait for a motor that may never hit the street.
Old 09-16-2005, 12:01 PM
  #22  
RTK
My Feedback: (1)
 
RTK's Avatar
 
Join Date: Apr 2003
Location: Left Coast , CA
Posts: 4,890
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 3W 80i

That is why I have no brand loyalties.
I buy what I feel is the best for the application and what I feel is at the top of it's class.
Old 09-16-2005, 12:30 PM
  #23  
flyinrazrback
Thread Starter
My Feedback: (69)
 
flyinrazrback's Avatar
 
Join Date: Jul 2002
Location: Fort Smith, AR
Posts: 3,779
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 3W 80i

Same here RTK, I will try whatever regardless of the brand. I started out DA and had a 100. Tried a 3w 106 and liked it a lot better, stuck with the 106. Figured I would give the 110 a try and did, great motor, but liked the 106 better. I usually pick whats best for the application, not the brand. Never a customer service issue with DA, 3W or BME, and have to have service from all 3, so I dont use CS as a basis for my decision any longer since I have had no problems with any of them.
Old 09-17-2005, 12:35 AM
  #24  
budgetdude
My Feedback: (6)
 
budgetdude's Avatar
 
Join Date: Oct 2002
Location: Burnsville, MN
Posts: 844
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 3W 80i

Hey guys this is my #2 choice for a CA models Extra, what do you think of this combo?
Old 09-17-2005, 10:08 AM
  #25  
flyinrazrback
Thread Starter
My Feedback: (69)
 
flyinrazrback's Avatar
 
Join Date: Jul 2002
Location: Fort Smith, AR
Posts: 3,779
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 3W 80i

Personally I dont think you could go wrong with this engine on the CA models extra, would be a great combo. If you are thinking on the new zdz80 as well, dont think you can go wrong with that engine either, two excellent choices. I fly 3w myself, but would try the new zdz in a heartbeat as well. Both the same power, same weight, so boils down to what you want. Either engine will pull the snot out of your CA 31% extra. I would recommend using a cannister exhaust or pipe on either engine though, especially if you plan on using it for imac, as the stock mufflers on the zdz and 3w single cylinder engines are very loud.


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.