Scooterpilot

My Feedback: (5)

Just took delivery on the VVRC 40cc twin. It's going on an Extreme Flight 78" Extra 300. :-)

Boboeing

Have been looking at an Aeroworks 35cc Extra or an Extreme Flight 78" Extra for this engine. The Aeroworks measures 8 and 3/4 across the inside of the cowl. Do you know if the Extreme Flight cowl is wider or narrower across the inside of the cowl than the Aeroworks ? My VVRC 40 twin is due to arrive Friday.

Scooterpilot

My Feedback: (5)

78" EF Extra 300

WHere the cowl meets F1 former is 9 3/4. I measured about about half way from the very back of the cowl thinking that is approximately where the cylinder head for the twin would be located and it's just a bit over 9 inches where the cylinder head would be when the cowl is mounted

Hope this helps

Boboeing

Sounds like the Extreme Flight 78" Extra has a little more room than the Aeroworks 35cc Extra. The VVRC 40cc twin will work nicely for you. Unfortunately Extreme Flight is now sold out of the 78" Extra. So for now, after the engine arrives I'll set it up on a test stand and do a little break in and evaluation. Thanks for the help.

Scooterpilot

My Feedback: (5)

May I suggest, if you're going to buy the EF 78" Extra to go online and add yourself to the waiting list. I did this for their 91" Extra. I received notification it was in stock early in the morning. I didn't see the email until after lunch and it was already sold out again.

Boboeing

My VVRC 40 cc Twin arrived this morning. Fed X did a great job. After a week on the road from coast to coast the outer box wasn't even scratched. The engine looks better in person than in the pics on the web. Nice finish, good compression, and a little tight. Will need some break in. Now mounted on test stand. Still need to drill, balance and mount a 20-8 prop and hook up ignition. Maybe run it first time on Sunday. I use 92 octane with Stihl HP Ultra at 30 to 1 in my DLE 30. Anyone know what octane is recommended for the 40 Twin ?

w8ye

My Feedback: (16)

The same mix should be good for your 40.

Did you get the one with the 1/4-32 plugs or the CM-6 plugs?

Boboeing

1/4-32 plugs. Just a tad under 8 inches across from plug cap to plug cap. Just about slides into the cowl of a 71 inch 3DHS AJ Slick. Better suited to a 78 inch Extreme Flight Extra or Aeroworks 35cc Extra 300 or 260 which have cowls at least 8 and 3/4 inches across.

Tbatt

My Feedback: (4)

87 octane will be fine. This is a low compression engine.

BAS

My Feedback: (28)

I talked to Tammy last week and she advised that the angled cm6 plugs come with the current stock of the 40 twin. I have one coming shortly and I am going to mount it in the Slipstream RV 8. I sure hope that info is correct as I don't care for the 1/4x32 plugs.

RC_Feen

My Feedback: (1)

Has anyone mounted the VVRC 40cc Twin in the AW 35cc Extra yet? I'm talking about this plane or the EF 78" Extra 300 or maybe a Pilot-RC 26% Yak54. I'm thinking about going with a 30cc size plane rather than going to a 50-60 size plane now that I've read up on the VVRC 40cc Twin. Cheaper to build a 78" EF Extra 300 or a AW 35cc Extra 300 with a nice VVRC 40cc Twin installed. Thanks!

Boboeing

Been thinking the same. Favoring the AW. The AW 35cc Extra 300 is a tad shorter than the 78" Extreme Flight Extra and will fit in my vehicle better. It is also built a little sturdier than the others and will fare better in rough landings or misjudged dead sticks. I like the color scheme and general looks of the AW and the VVRC 40 cc with the 1/4 32 angled plugs will fit into the cowl with some room to spare. The firewall to prop hub distance is specified at 6 inches in the AW manual. The engine with the supplied standoffs measures 6 and 1/4. Will need to order 1/2 inch standoffs for the AW. On the down side it is a tad heavier due to the beefier construction and may require a little lead in the nose to balance. All in all it will be fine for precision and IMAC manuevers. That's to say if I could do them. I mostly fly around, do a few rolls a few loops and a bunch of touch and goes. Anyway I like the combo of the 40 twin and the AW Extra 35CC. I plan to have the engine running this week and will order the airframe for it shortly. In the mean time my DLE 30 on an old 73 inch Sig Cap 321 EX at 13 lbs will have to suffice.

RC_Feen

My Feedback: (1)

Thanks for the feedback. I had a AW 30cc Freestyle 260 but built it then sold it. Before I got the Freestyle 260 I was looking at the 35cc Extra 300. Contacted AW about the 35cc Extra 300 but they convinced me to go with the Freestyle 260. Now that the VVRC 40cc twin is available I'm liking this option in the 35cc Extra 300. From the sounds of it I'm pretty much the same type of flyer. Maybe with the AW 35cc Extra 300 being more beefier would be a good thing for me. Let me know which airframe you go with. Thanks!

Tbatt

My Feedback: (4)

Does anyone have some run time on the 40 twin with the 1/4 inch sparkplugs? Are they holding up OK? I have several other engines with both the CM6 plug and the 1/4x32 plugs and they all seem to run about the same. The life span of the smaller plugs seem to be the same as the CM6 at least so far.

av8tor1977

My Feedback: (6)

I have been assured by other "engine people" that I sincerely trust that the 1/4" spark plugs last just fine. I currently have one in a Super Tiger .90 running on gasoline and it has been running for a year with no problems.

AV8TOR

Hone1er

I have a little over 6 gallons through my 40 with the smaller plugs and no issues so far.

Tbatt

My Feedback: (4)

Thanks for the replies about the 1/4" plugs. All good news! Either plug has the same gap so it would seem that .020 is the same with the CM6 or the 1/4x32...............................

denney47

My Feedback: (359)

That information is correct, we will now have the 40cc twin with 1/4 X 32 plugs which is 7-7/8" cap to cap and the angled CM-6 plugs which is 8-1/2" cap to cap.
Thanks
Tom

RC_Feen

My Feedback: (1)

Any time frame with the 40cc twin with the 1/4x32 will be back in stock? Thanks!

denney47

My Feedback: (359)

It should be about two weeks before we have them back in stock, both the 1/4 X 32 and the CM-6 engines will be here at the same time.
I didn't realize how fast they would sell, we have waiting list for both engines.
Thank you
Tom
Valley View RC

RC_Feen

My Feedback: (1)

Thank you very much for the update Tom!

BAS

My Feedback: (28)

Thanks Tom for the info on what Tammy told me about the updated cap info on the angled cm6 plug. That is good Bruce

SteveC68

Is there a dimension drawing available for the 20cc? If not how does it compare size wise to the DLE20?

Thanks,
Steve

Lifer

My Feedback: (1)

The two are nearly identical. I really like the VVRC and it will be my choice in the future over the DLE 20.

SteveC68

Is the head angle plug like the 40cc twin?