Posts: 935
Joined: 11/1/2003 From: Kootenai,
ID, USA Status: offline
I have the Evo brand of the mvvs 1.60. Running it with the Evo brand wrap around inverted pitts muffler. From what i have read the rpm's are not up to par with what others are getting with the pitts muffler. APC 17X10 Regular gas mixed 30 to 1 for break in. Damp and 35 deg outside RPM MAX peaked 7280 I have 3 14oz tanks through it. The only full synth oil i can find in this little town is amsoil. I have also read that the ignition takes min 6v. Mine says 4.8v. After trying it at 4.8V it seems to work fine. The 3 tanks of fuel were ran through it on 3 different days and the ignition battery has not been charged. So i assume 6V would make no difference??? Are the rpm's actually in line for this set up? If not does it need more breakin? Could 6V make a difference without frying the ignition box?? Pat
I had the MVVS version of this engine and it seems the only way to wake this engine up is with a pipe. I had one on mine and got 8000 on an 18 - 8 APC. I wanted to use it in a plane with a Pitts muffler but after talking to some people it seemed I was not going to get the performance I needed on a muffler. Someone in Australia wanted to buy it so off it went.
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Posts: 10035
Joined: 12/12/2001 From: slc, UT, USA Status: online
The 4.8 v setup does NOT want 6 volts ! don't do it. Use a modern, 4.8 low impedance 4 cell NIMH. the Intellect 1400 or similar type is great . ignitions are not hotter just because the battery used is higher voltage . internally they are designed to work with certain voltages some ignitions are designed to work from 4.8 to 9 v - NOT this one .
< Message edited by dick Hanson -- 2/21/2007 12:06:33 AM >
Posts: 935
Joined: 11/1/2003 From: Kootenai,
ID, USA Status: offline
The 4.8v/6v is kinda confusing to tell ya the truth. The engine is about 2mos old and there has been a bulletin on the ignition stating it requires 6v to operate properly or it will not start. My box has 4.8v printed on it so i thought i would try it first and guess what...It works and starts
Well i just got off the phone with Horizon and the Tech guy said: He does not know why it runs on 4.8v as it should not. He said to put at lest 6.0v to it and then see if that helps. He also said that if the box fries he would send a new one out free. So well see if that makes a difference.
Posts: 116
Joined: 12/4/2003 From: StPeteBeach, FL, USA Status: offline
I have both style ing. if it says 4.8 they use a 4 cell pack! The new style needs 6 cells or 2 lion 8.4 volt pack. The dude at horizon is talking about the new style. Personally I perfer the old style 4.8. The new style fires the plug when swithed on, so if you r on compression stroke the motor will kick over and may start.
Posts: 856
Joined: 3/19/2003 From: Perth, AUSTRALIA Status: offline
Just out curiosity, when starting these, is it possible to start them with a spinner flick? Or is the hall effect sensor in the wrong spot to send a spark?
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Posts: 935
Joined: 11/1/2003 From: Kootenai,
ID, USA Status: offline
Yes 6 cell nicad or 2 lipo. My Mistake As i said the guy at horizon(Ryan) told me the "old" style boxes were gone long ago and there is no way i could have the "old" style as i got this engine from Horizon about two months ago. The LED does light up when i turn on the power switch for about 1/2 second or so. Horizon tech told me to use 6 cell or 2 lipos. There is a record of it. So what have i got to lose? Pat
Posts: 1496
Joined: 12/5/2005 From: Victoria,
MN, USA Status: offline
If I had my 1.6 MVVS still the KMP Katana seems to be the best aerobatic plane out there right now for the 26cc gasser! Even room for the tuned pipe! Not sure if it has long pipe chaeneel though but I wish I had gone that route that going with the H9 funtana 100x... No way shoul you put a 1.6 gasser on that plane end up to be 11+lbs.... too heavy.....
quote:
ORIGINAL: Chuck322
quote:
ORIGINAL: Rendegade
Another question.
Mounting the ignition module, I take it most people are mounting it on trays or bulkheads, has anyone tried velcroing it down? Is there anything here I should be worried about?
Also my ignition module says 6-8.4v, does that mean I need to run a 5 cell NIMH pack?
That's how I do it and don't have a problem. I put 5mm self adhesive rubberfoam under the ignition module and tie it with standard hook and loop fasteners. That is a KMP Katana where it is inside the engine box. With the Quique Yak, I had it on the outside of the engine box. Both works, cooling is no problem with all the lightning openings. Chuck
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Posts: 81
Joined: 8/4/2003 From: Alamogordo, NM, USA Status: offline
kochj, yes, 11+lbs seem too heavy, but it has a big wing and flies light - it's a larger plane than the Funtana 100. Mine has 12.74lbs and I did a lot to keep it light. Hitec HS 5245MG on elevators safed half the weight of JR8611's, JR8611s on aileron and rudder, Hitec HS 225 for throttle. Aftermarket carbon gear, Scorepa lite carbon pipe, no wheelpants, holes in enginebox, LiPo receiver battery. I moved everything up front (i.e. rudderservo, batteries) and did not need lead. Mejclik or Scorepa 18x6 w/about 8900 RPM. 1.5 gal of fuel through the engine - it will get stronger. There is a lot of 3D in this plane. Hover is not everything for me, but it does it too. No unlimited vertical though. The pipetunnel is not long enough. I used the supplied glasstunnel for the rear and made a balsatunnel up front. This plane flies so good, that every time out at the field I get offers to sell it. Chuck
quote:
ORIGINAL: kochj
If I had my 1.6 MVVS still the KMP Katana seems to be the best aerobatic plane out there right now for the 26cc gasser! Even room for the tuned pipe! Not sure if it has long pipe chaeneel though but I wish I had gone that route that going with the H9 funtana 100x... No way shoul you put a 1.6 gasser on that plane end up to be 11+lbs.... too heavy.....
Posts: 348
Joined: 9/15/2002 From: Alta Loma, CA, USA Status: offline
Sorry Pe: I should have said that I have the newer ignition and you mentioned that it should be operated on 6 nimh cells. I am trying to get mine started the first time on 7 nimh cells. It seems to be popping, but I haven't got her to run for more than a few seconds yet.
Posts: 5
Joined: 3/24/2005 From: Chatham,
ON, CANADA Status: offline
Funtana 100X rtf weight
I ended up with a ready to fly dry weight of 10 pounds 5 ounces ( 4678 grams ) MVVS 1.6cc gas with MVVS header and pipe 3mm. aluminum plate , four 0 .5 inch aluminum standoffs and four 8-32 screws for engine mount ( used the supplied blind nuts for mounting the plate ) 18x6 Xoar prop 3.25 inch DBrown Lite Flight wheels, cap screws used for axles, no wheel pants ( original wheels a bit small for our bumpy grass field ) 5 Hitec 645MG servos, one Hitec 85bb for the throttle 1.2 AmpHour 2S Lipo for the ignition 1 AmpHour 6 Volt NiMh for the receiver Smart Fly optical ignition shut off as well as a Cermark switch Futaba FP-138DP receiver and Cermark switch Otherwise all of the supplied hardware was used.
This is 1.08 pounds heavier than the one featured in the Sept. 2006 issue of MAN with a Saito 1.25 for power.
Posts: 1
Joined: 5/21/2005 From: egham, UNITED KINGDOM Status: offline
Can anybody advise if the MVVS 26 with the MVVS tuned pipe will pass a UK noise test, 82dB @ 7m? Just read all 56 pages hoping to find out to no avail.
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RE: mvvs 1.60 gasser carb #'s - 
