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RE: MT70CC TWIN
I have always laughed inside at the 40yr old CEO can't tune a engine with 3 moving parts. He looks down at the 22yr old auto-tech, who deals with more technology on a daily basis, then the Space-Shuttle techs (Trust me I know some of them) Not to mention the 22 tr old British Kid, who, under the Blitz, can keep a Rolls-Royce V-16 running happily..
Posted on: 9/7/2012 4:05 PM by Author "capitalB"
in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11221126
RE: MT70CC TWIN
You both are 100% correct. I can't even get my family and friends to believe it..Don't get a oil thread started (YIKES!), but, all synthetic oil should be mixed at the ratio it was made for. (kinda like laundry detergent concentration) they all ain't the same. In all my years racing M.X. I used Bell-Ray at 70-1, never had a oil issue and could run all year on one plug. One time I had my girlfriend, get gas for me, and it ended up a 40-1ish. I fouled a plug in 2 laps (practice thank God!)
Posted on: 9/7/2012 12:26 PM by Author "capitalB"
in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11220916
RE: MT70CC TWIN
Amen! WE should all be ashamed just to save a buck or two. I have hear that if US citizens would pay just 1-2% more, the Chinese could not compete. I for one am sick of buying a product that used to last a lifetime and get handed down, now to last a yr or less just to buy a new one and "Throw-away" the old one. If the parts available at all, they cost more than the unit new. I am sure you all know about the brand name game they play......"Sorry no parts available, no sell anymore. Tractor supply had my exact compressor for sale (different color and name) bragging about it's great warranty. So I took the serial# and model # down .and called the warranty line. I never got thru to any human, but I was told by a strong Indian voice the the model was too new or obsolete, no warranty, no parts! Just like all those cheap dirt-bike, scooter, go carts ect., no parts, BUT, Honda OEM parts fit perfectly. The Chinese, like the Russians, have no problem copying and producing other peoples engineering. Soon China will have to normalize it's currency to the standards of all other nations and then, BOOM, GAME-OVER!
Posted on: 9/1/2012 6:49 PM by Author "capitalB"
in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11213952
RE: MT70CC TWIN
There is a big difference between pre-ignition and detonation. Pre-ignition is just that...the spark plug fires way too soon after B.D.C, causing the rapidly expanding fuel charge to reach its maximum P.S.I. before the piston reaches T.D.C. Engine mechanical related detonation can be caused by many things, such as too much compression, port timing issues, hot spots in the cylinder and to much load (Bigger prop then it was rated to turn.) Now this is the part that I spent my 2-cts discussing. High octane does NOT mean more energy content, or power output. In fact in most of engines not designed for it (probably 95%.) I don't care if is 2 or 4 stoke, in a car, boat, motorcycle, big, small, Asian or American. I find it odd that people will spend up to 40 cents more for "premium" gas, when the car they are putting it in will have less power, and lower gas mileage. It's says Premium, so it MUST be better! Back in the early day of getting my degree, One of my profs. had a very interesting way of demonstrating this on a special engine that turned very slowly with a clear plexiglass cylinder. He would run the engine with the room lights on, so we could all HEAR the sound of detonation, then he turned off the lights and all of the questions that we had and did not at the time were answered instantly.You can win any discussion on premium fuel this way: Octane is the rating which the fuel will self ignite (think diesel) So engines with high cylinder pressures, such as turbos and compression ratios of over approx. 10.5-1, high octane fuel is need to control the maximum cylinder pressure that it can take be for lighting up on its own without and ignition source (spark plug.) So where in I going with all of this? Octane additives can be thought of as candle wax added to slow the burn rate and raise the maximum cylinder pressure before it burns on it's own. Now you can see why in MOST engines you loose power as the don't need, or want octane higher then a true 87! Sorry to get carried away, but I love to hear myself talk!! Brian
Posted on: 8/31/2012 2:37 PM by Author "capitalB"
in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11212879
RE: MT70CC TWIN
I checked my static timing today and I am about 33-34 degrees B.T.C. Make sure you listen for detonation, as of all the conditions out there that can affect max timing
Posted on: 8/31/2012 12:59 PM by Author "capitalB"
in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11212809
RE: MT70CC TWIN
Mine has been flawless so-far. I got about 20-gallons through it. What the problem you have is a torquey engine that is not meant to spin the props at the speed of sound! WE have all met the guy with a O.S 160 that will only top-out about 9200rpms, constant complaining and telling everyone how big a piece of crap it is. It is a lot of fun for us he works for some big ass, enginern, company! (He runs a APC 10-6 from his trainer days, and says the math he does with the H.P. rating of the O.S, he should be getting 17000+, no tellin' him otherwise! Last thing on the MT-70, alot of them (50%?) had the reeds installed upside-down with sealing read valve ABOVE the stiffener reed. If your engine has this, correct it and bump timing up a few degrees at a time. you will be amazed at the improvements as this engine gets kinda scary-powerful. By-the-way I run only 23" or 24" props.. Sorry to have carried on so long, Brian
Posted on: 8/31/2012 7:06 AM by Author "capitalB"
in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11212524
RE: MT70CC TWIN
I guess it is the same reason you wanted to sell me a warranty crankcase ......$$$$ is the universal language!
Posted on: 3/12/2012 6:49 PM by Author "capitalB"
in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=10997744
RE: MT70CC TWIN
Nowayusa...Tomy told me the only way he would send my warranty parts is if I bought the twin-canister set from you. I was wondering if you may still have this somewhere and I will buy if off of you! (It is from one of your prior posts) Thanks, Brian
Posted on: 3/12/2012 6:30 PM by Author "capitalB"
in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=10997711
RE: MT70CC TWIN
aussiesteve ,YOU are a funny man! O.K, only because you started it, if you can get "Tennis-elbow", then you must be able to get "Golf-Balls".....Sorry, but I am a recovering M-T owner.
Posted on: 3/10/2012 4:14 PM by Author "capitalB"
in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=10994609
RE: MT70CC TWIN
Now this is getting, just plain..SILLY Baby-oil at 600-1... that works for a good top-end and transition![:D]
Posted on: 3/10/2012 10:52 AM by Author "capitalB"
in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=10994256
RE: MT70CC TWIN
I guess I lived and learned! I cannot understand why he would blow people off with the new MT-76 coming out. It looks just like the latest case and bottom-end with the new cylinders....I just want a 4 bolt prop hub....
Posted on: 3/9/2012 5:16 PM by Author "capitalB"
in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=10993497
RE: MT70CC TWIN
Does anybody have a 4 bolt prop adapter for the MT-70 I could buy? I have sent Tomy 5 e-mails with no response.
Posted on: 3/7/2012 11:26 AM by Author "capitalB"
in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=10990216
RE: MT70CC TWIN
After running a couple of gallons thru this engine, I don't know if I should thank-you guys (because I got it so cheap) or be angry as you killed off an amazing engine! I have owned and ran all of the big 4 (now 5) manufactures engines. I can say that of the box, this engine was not ready to go (as Jody said, it should have been sold as a kit) but now it is AMAZING! The smoothness, power and transition are unbelievable. The r.p.m.s I am turning with 23" props are incredible. I with go with a 24-8 to keep from over-revving it! Those of you who have not seen good results , try this: My read valves where installed wrong at the factory with the stiffener down and the reed peddles sitting uselessly on top! While you have the reads out, sand on a flat surface, all sides of the reed block. When assembling, ad a drop of medium C-A to the screws. This alone gave me 500more rpm! Great engine, very tight from the factory, break it in with lots of heat cycles to let the parts get to know each-other, and you WILL have a brute. I am going to buy 3 or 4 of these, go thru them, and break them in correctly. The only thing I learned from this forum is that they are not ready out of the box...but like a good dog, take your time and you will end up with a keeper! I do find it somewhat ironic that some of the people who constantly bashed this engine now are dealers for the competition.....Why didn't he just return it and walk away? I think I know why.
Posted on: 2/24/2012 6:11 PM by Author "capitalB"
in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=10974521
RE: MT70CC TWIN
I didn't mean the dealer couldn't inspect them, what I meant was the buyers should not take them apart as soon as they get them home.
Posted on: 2/20/2012 11:28 AM by Author "capitalB"
in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=10967687
RE: MT70CC TWIN
I don't know him or cannot speak for Tomy, but the way he was treated on this forum, I am sure he wants to make sure everything is right and well tested. B.T.W, if I was selling engines and people where dissembling them before running them, only to complain of poor assembly,stripped fasteners, ect, I would void the warranty! Buy a new D.A 60, tear it apart, screw it up cause you don't know what you are doing, and then send it back to them and see what happens! Oh and all the while you are posting about how big a peice of crap it is, Amen!
Posted on: 2/20/2012 8:16 AM by Author "capitalB"
in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=10967394
RE: MT70CC TWIN
Tomy sent me photos of the all-new MT-76, looks nice!
Posted on: 2/19/2012 12:43 PM by Author "capitalB"
in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=10966205
RE: Peak Models 30% Sbach 342 cowl
They are selling.....BUT $70+shipping and you have to wait about 3 months!
Posted on: 2/17/2012 4:26 AM by Author "capitalB"
in the forum "Giant Scale Aircraft - 3D & Aerobatic"
http://www.rcuniverse.com/forum/fb.asp?m=10962864
Peak Models 30% Sbach 342 cowl
I am in need of a clean, undamaged cowl for my plane, let me know if anyone has one. ( I switched from a 50cc single to a 70cc twin) Thanks, Brian blloyd@wi.rr.com
Posted on: 2/10/2012 3:40 PM by Author "capitalB"
in the forum "Giant Scale Aircraft - 3D & Aerobatic"
http://www.rcuniverse.com/forum/fb.asp?m=10953285
MT-70 exhaust options
I recently got a MT-70 new at a killer price.I have been following this thread since the beginning so I know what to expect. Mine runs great and turns a 23-8 over 7000! I need a source for a y-header or a suitable type of muffler(s) as this thing is WAY to loud! Any help would be greatly appreciated, Thanks, Brian blloyd@wi.rr.com
Posted on: 2/7/2012 10:22 AM by Author "capitalB"
in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=10948201
RE: MT70CC TWIN
I recently got a MT-70 new at a killer price.I have been following this thread since the beginning so I know what to expect. Mine runs great and turns a 23-8 over 7000! I need a source for a y-header or a suitable type of muffler(s) as this thing is WAY to loud! Any help would be greatly appreciated, Thanks, Brian blloyd@wi.rr.com
Posted on: 2/7/2012 10:18 AM by Author "capitalB"
in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=10948197
RE: PTE 50 I GAS ENGINE
Jody, I took a chance and bought one....I went over it completely and the prop-hub nut was hand-tight with no thread-lock at all! Got about 3 gallons thru it, starts and runs good, I get abort 7000 rpm from a Vess 23-A, average for a 50cc. If you can get me some info on the manufacture, so I can get spare parts if needed, that would be great as my "Dealer" is kinda a "fly-by-night" kinda guy! I should have known better based on his R/C Universe log-on name! I will tell you who he is in a P.M. as this is no place to complain about individuals!
Posted on: 9/24/2011 6:40 AM by Author "capitalB"
in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=10731746
RE: NGK CM-6 Plugs
I go through 1800 a week! My kids sell them at a stand in front of the house.
Posted on: 4/16/2011 9:33 AM by Author "capitalB"
in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=10466147
I need a canopy!!
I need a used canopy for my 30% Peak models Sbach 342,HELP!!
Posted on: 4/13/2011 8:32 PM by Author "capitalB"
in the forum "Giant Scale Aircraft - 3D & Aerobatic"
http://www.rcuniverse.com/forum/fb.asp?m=10461536
Peak 30% Sbach 342 C.G
Peak 30% Sbach 342 C.G? Anybody build and fly one? wing-tube is at 5.5"back, the manual says 6.75" back.if I set it to the position in the manual,I will have to add a lb. of tail-weight with a light 50cc.Balances now on the wing-tube perfect...HELP!!
Posted on: 4/11/2011 3:54 PM by Author "capitalB"
in the forum "Giant Scale Aircraft - 3D & Aerobatic"
http://www.rcuniverse.com/forum/fb.asp?m=10456909
RE: List of Chinese Engines
I ran the kitchen exhaust fan all afternoon till she got home.....Took her all of 15sec to figure out what I did!
Posted on: 3/24/2011 1:49 PM by Author "capitalB"
in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=10420256
RE: List of Chinese Engines
I started my new PTE 50 on the kitchen table.... (yes it was 10 degrees outside).....bad idea all around! Oh and by the way,it is really amazing how loud these engines are indoors!
Posted on: 3/24/2011 12:44 PM by Author "capitalB"
in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=10420141
RE: AMA sanctioned club looks to punish members
The more I read,the more my first post is proven true! Don't theses club Nazi's have anything better to do? Why in the world would you subject yourself to so much conformity and ("The rules are the rules!) mentality. This supposed to be a fun safe hobby-sport that is being wrecked by frustrated mid-level management types who are power-less in their workplace.But give them the Club President badge and suddenly they have the power they were craving!
Posted on: 3/24/2011 12:40 PM by Author "capitalB"
in the forum "The Clubhouse"
http://www.rcuniverse.com/forum/fb.asp?m=10420126
RE: AMA sanctioned club looks to punish members
AMEN,Jeeper91!! That is what I was trying to say!
Posted on: 3/23/2011 1:16 PM by Author "capitalB"
in the forum "The Clubhouse"
http://www.rcuniverse.com/forum/fb.asp?m=10418131
RE: AMA sanctioned club looks to punish members
Why in the world would you subject yourself to so much conformity and ("The rules are the rules!) mentality. This supposed to be a fun safe hobby-sport that is being wrecked by frustrated mid-level management types who are power-less in their workplace.But give them the Club President badge and suddenly they have the power they were craving! I joined a club that was trying to organise and find a flying site.They had a bunch of meetings to set-up the power-hierarchy and rules,upon rules,with 1st,2nd and 3rd violation penalties,and who would be the club Sheriff. They were collecting dues along with late fees all the while.... But there was only one small thing missing,and it did not seem to matter at all to the board.It was a flying site! They did not seem to be into that silly part of our hobby,but really enjoyed the meetings and the rules! I asked for my money back,as I am old-fashioned in the way that I like to fly! One word to the AMA,keep you magazine and set dues at $35..My wife is a insurance agent and she can not make heads or tales of our coverage (or lack there-of) We should be sent policies to show exactly what is covered!
Posted on: 3/23/2011 10:27 AM by Author "capitalB"
in the forum "The Clubhouse"
http://www.rcuniverse.com/forum/fb.asp?m=10417807
RE: List of Chinese Engines
I have a PTE50 (52cc) and I can say it has nothing in common with the engines you compared it to.It is a copy of a DA-50: Bearings: NSK Japan,Carbon fiber reed valves,Crankcase is 6061 aircraft grade aluminium. Carb is a Walbro Japan not a Chinese copy. Prop bolt pattern is the same as the DA-50R.I have had and ran most of the higher-end engines,and I can say that all the clones cannot be lumped-together as the same.If you do your homework,you may find a few hidden jewels out there,amongst alot of junk!
Posted on: 3/23/2011 9:52 AM by Author "capitalB"
in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=10417722
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