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General control line discussion => Open Forum => Topic started by: B Norton on June 21, 2016, 11:08:16 PM
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I've been looking @the magnum 52 and wondering if anyone had any experience at converting one to control line?
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My experience is with the 36 size back in the 90's. If you get one with a good piston/sleeve fit it will be a fine engine. As an engine builder, first thing I would do would be to take it apart, de-burr and clean everything then re-assemble with boca bearings with single rubber seal front.
MM
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Stuka Stunt did conversions on this engine. Lowered the deck height and plugged the boost port. Good engine.
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Stuka Stunt did conversions on this engine. Lowered the deck height and plugged the boost port. Good engine.
I knew he did the Magnum .53, I did not know he had reworked the .52, its a different case as far as I know, he may have, but I am not sure
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If this engine is the same as the ASP 52, then it is a good unfussy stunt engine. I simply check for foreign bodies and put in a .275" to .285" venture which I turn up myself (this is using the OS NVA).
I have yet to change the bearings in either of my engines. They run just fine with no other mods. They can do a wet two right the way to a mild 4-2-4, depending how you set them up. No real vices and they have a lot more power than say an LA46.
Andrew.
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I believe Randy Smith sells reworked one. I have a Magnum 40 from him and it runs great! Powerful and tame!
Randy Cuberly
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I do the new Bluehead 52, there are dozens of mine out there, it is a differant motor than the old 52 53
They are very powerful engines
Randy
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Randy, what do you do to them?
MM
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Randy, what do you do to them?
MM
Balance blueprint, convert to C/L venturie and PA needle assembly, and head mod
they are only availble as an RC motor
Randy
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I have on waiting to go on my TF Score. I have bench run it and it sounds right good.
Bought mine from Randy so I know it'll do what he says.
Shug
(http://i928.photobucket.com/albums/ad127/Shug7secure/IMG_0009_zpselazmzmv.jpg) (http://s928.photobucket.com/user/Shug7secure/media/IMG_0009_zpselazmzmv.jpg.html)
(http://i928.photobucket.com/albums/ad127/Shug7secure/IMG_0010_zpstluiseed.jpg) (http://s928.photobucket.com/user/Shug7secure/media/IMG_0010_zpstluiseed.jpg.html)
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Thanks for every bodies input.I was thinking of doing same project as shugs I have a old score that the covering has come off and needed new power. So keep me updated on your progress.
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Balance blueprint, convert to C/L venturie and PA needle assembly, and head mod
they are only availble as an RC motor
Randy
Now I know everything I knew before I asked.
MM
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Figure it out!
Doug
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Now I know everything I knew before I asked.
MM
so you want his recipe?
thats like asking a surgeon how to perform an appendicitus operation so you can do it yourself
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Or you could do what some people do, buy the engine, look for the mods (have to know what you're doing here) then do a bunch more of them and claim they're your mods. Not saying anyone here has done that, but know of a few instances. Ahhhh, sometimes there is real snake in the snake oil. I knew this one dude whos Fox 35's snarled more like a K&B on 85% nitro. Wonder how that happened?
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so you want his recipe?
thats like asking a surgeon how to perform an appendicitus operation so you can do it yourself
More like a brain surgeon asking how to do a heart transplant.
MM
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I do the new Bluehead 52, there are dozens of mine out there, it is a differant motor than the old 52 53
They are very powerful engines
Randy
Hi Guy's,
I've just received my Magnum 52 XL from Randy, and what a jewel. I've purchased many motors from Randy over the years and they are worth every penny. They run as claimed and expected. I plan on installing the Magnum 52 XL in the New P-Force XL, it should be a killer combo.
Later,
Mikey
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What size plane and what prop and muffler or is that top secret too.
MM
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What size plane and what prop and muffler or is that top secret too.
MM
THAT was a bit of passive aggressive there
its not top secret, but it is knowledge earned by experimenting, trying , failing and trying again. He makes money to do this. Somehow I get the feeling you would expect a nascar crew cheif to give up his knowledge just because?
LOL
perhaps you should buy one then attempt to reverse engineer it? then at least Randy would get something for his efforts.
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What size plane and what prop and muffler or is that top secret too.
MM
2 BLADES 13 X 4 , 13 X 4.5 13.25 X 4.5 2 BLADES AN OLD BOLLY OR CLONE 13 X 4.25 WORKS GREAT, OR BUY THE Zinger pro prop kits and thin/trim one, or REV Up Top Flite 13 x 4 or 13 x 5
3 blades - 12 x 4.25, 12.5 x 4.5 13x 4.75 CF are best
any muffler that fits a OS 46 SF, or TT 46 or Mag 46 will work, also I have tongue mufflers, the stock muffler works but is heavy
Randy
Randy
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Now I know everything I knew before I asked.
MM
Balance blueprint, convert to C/L venturie and PA needle assembly, and head mod
they are only availble as an RC motor
Randy
Sort of speaks for itself without me have to write for hours, if you know how to "balance a motor"
then you would not have a problem, others destroy many parts
if you know how to blueprint an engine then no problem, some kill things
same for head mods that actually work, converting over to C/L
making the proper size induction part and Needle assembly
reitiming or re-angling ports when needed, this is where tons of new parts are destroyed
then figure out how to get it to run best for what you have to install it in
Randy
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Just got magnum 52 blue head in the mail hopefully have a couple tanks of fuel run though it by monday evening.Got to get a venturi made monday morning. Cant hardly wait !!!!.
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Went out to Bob Reeves shop this morning to use his lathe to make a venturi.Used some dalron made it with a .281 opening used a super tiger 51 needle valve .Put to tanks of fuel through it ran perfect!!from a wet 4 stroke to a fast two stroke in a half turn of the needle cant ask for much more than that I'm very happy!
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THAT was a bit of passive aggressive there
its not top secret, but it is knowledge earned by experimenting, trying , failing and trying again. He makes money to do this. Somehow I get the feeling you would expect a nascar crew cheif to give up his knowledge just because?
LOL
perhaps you should buy one then attempt to reverse engineer it? then at least Randy would get something for his efforts.
Some give help some are up tight about it. See my thread in the speed section. http://stunthanger.com/smf/speed-talk/fox-on-the-run/
MM
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Just wanted to share my experience .Maybe it could help someone. That's what I like about the control line most people want to help and enjoy sharing there experiences .
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Just wanted to share my experience .Maybe it could help someone. That's what I like about the control line most people want to help and enjoy sharing there experiences .
Good to hear. I have mine mounted in my Score. Looking forward to seeing what it'll do when I finish the Score.
Shug
(http://i928.photobucket.com/albums/ad127/Shug7secure/IMG_2746_zpscoin9zfh.jpg) (http://s928.photobucket.com/user/Shug7secure/media/IMG_2746_zpscoin9zfh.jpg.html)
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Shug , do you mind telling me what glo plug you have in the Magnum ?
John
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Ive got mine mounted but am building balsa cowl ,got refinish the fuselouge ill let know how it goes.
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Shug , do you mind telling me what glo plug you have in the Magnum ?
John
I do not know...it came with it.
Sorry.
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Motorman, your typing comes off pretty harsh, not just in this thread but many of your posts. I would like to think if we were all standing around talking control line engines you wouldn't seem like such a tool. VD~ VD~ VD~
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Some give help some are up tight about it. See my thread in the speed section. http://stunthanger.com/smf/speed-talk/fox-on-the-run/
MM
As I read that thread, it's largely about stuff that didn't work. How does that help anybody? And you never enlightened us on what the final outcome was. Randy has multiple, multiple National and World Champions use his stuff, not to mention a legion of Joe Bellcranks out there using his products. Not that Randy can't speak for himself, but just in case you didn't know, I thought I would point that out. And if you read the forum thoroughly, you will find that he is more than quite helpful to everyone that asks about the everyday stuff in stunt. As far as reputations go, you have a long, long way to go to catch up with him.
Now, tell me how I always have to win my arguments again.
Type at you later,
Dan McEntee
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Best way to win an argument is when you know you are right, is just let it go and ignore them. Now if I could live up to that. S?P
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Henry Ford is reputed to have paid a large bill itemized "knowing where to tinker".
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How will this engine do stock, with no mods? Of course a needle and venturi would be added. I was thinking of putting one of these in my old Sig Magnum.
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I ordered mine from power hobbies and made my own venture and use a stock st 51 needle valve it seems run great we will see! As soon as I get that score done!
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I have done the same with my ASP version, just a delrin venturi and an Enya pro NVA. In this form it is a very strong performer. I don't doubt that Randy's modifications will make it a much better performer. However just putting in an appropriate NVA and venturi makes it a very creditable control line engine.
I must admit that I don't like Chinese engines much, but credit where credit is due. I have a second (new) ASP and this one is very tight, I suspect it will need a fair bit of running in. This one, I suspect, will not give the same result as my second hand conversion. Work on the ring may well be needed. I am a little reluctant to even run it with such a tight ring set up.
Andrew.
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The reason I went with this motor was because I needed good reliable engines at a cheap price, and since they quit making the LA 46 I needed something. I could auger in three or four of these engines for the price of one nice stunt engines.With me just starting the pattern again it just make more sense .I own a really nice ro jett 61 but I'm not there yet.Just explaining sorry about the ramble.
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Well score is finished maybe get some flights in this week and find out just how good this motor is!
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After a lot of work I got elevator & stabilizer fixed on the score now if the wind dies down a little ill see just how good this mag 52 is .I guess that's what I get for leaving the score with no monocote on it for almost ten years.
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I hope you at least put some bench time on the engine.
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What does the Mag 52 weigh?
Charles
It weighs about 12.5 ounces ( added by Randy Smith)
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What does the Mag 52 weigh?
Charles
soorry I was going to post the actual weight so you did t have to follow the link to Towerr
Weight with muffler: 17oz (453g) Weight w/o muffler: 13.6oz (374g)
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Subtract the weight of the throttle, which weighs 45.8g, but add a Delrin venturi, which weighs very little, and a good NV Assy., and Bob's Your Uncle! S?P Steve
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Subtract the weight of the throttle, which weighs 45.8g, but add a Delrin venturi, which weighs very little, and a good NV Assy., and Bob's Your Uncle! S?P Steve
not sure I buy the carb weighing an ounce an 3/4,, 48 gr? Steve where did you find that, I know my Magnum .53 is less than 11 ounces and I have had one of these 52s and they are heavier by a fair amount
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I weighed one myself, and it was 45.8 grams, not 48 grams. I didn't do the conversion to ounces. I thought maybe you would have an issue with the "Bob's Your Uncle" part of my post. :P Steve
PS: Weighed on my Ohaus triple beam balance, bought new many decades ago. It's never weighed anything that is or has ever been a controlled substance...except controline planes, which are a controlled substance by definition...and free flight planes, which are sort of controlled for awhile, and then not controlled for awhile, also by definition...
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OK finally got to put a couple flights in on the score and the magnum 52 the score flew well very stable has a couple trim issues very fixable not bad.The magnum plenty of power might need to experiment with props to get that sweet spot but exceptable like it very much.
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I cleaned the thread up somewhat , please try to keep on topic
Regards
Randy
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I cleaned the thread up somewhat , please try to keep on topic
Regards
Randy
My apologies Randy, thanks
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Thanks for that
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OK finally got to put a couple flights in on the score and the magnum 52 the score flew well very stable has a couple trim issues very fixable not bad.The magnum plenty of power might need to experiment with props to get that sweet spot but exceptable like it very much.
That's a pretty dope score B!
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The reason I went with this motor was because I needed good reliable engines at a cheap price, and since they quit making the LA 46 I needed something. I could auger in three or four of these engines for the price of one nice stunt engines.With me just starting the pattern again it just make more sense .I own a really nice ro jett 61 but I'm not there yet.Just explaining sorry about the ramble.
This is an EXTREMELY sensible approach, and one that is seldom discussed. When you are trying to get your act together in stunt, #$%^ happens. Having reliable affordable motors that you don't have to commit suicide, if you auger one in is the way to go. Also,(and this is controversial) more affordable motors, makes you more aggressive when learning the pattern. You crack the corners harder, and drop them lower. Trust me on this, when you are learning on a $150 front end, as opposed to a $550 front end, you become less gun shy.
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This is an EXTREMELY sensible approach, and one that is seldom discussed. When you are trying to get your act together in stunt, #$%^ happens. Having reliable affordable motors that you don't have to commit suicide, if you auger one in is the way to go. Also,(and this is controversial) more affordable motors, makes you more aggressive when learning the pattern. You crack the corners harder, and drop them lower. Trust me on this, when you are learning on a $150 front end, as opposed to a $550 front end, you become less gun shy.
Proparc,
I'm guessing there are many NIB OS LA 46's available. Modelers have plenty of them, don't doubt me.
I have five of them NIB and by some standards, I'm not even a modeler. LL~
There are many Forum members, it wouldn't hurt to ask from time to time. Someone might feel generous and give one up. Well, of course for the exchange of currency, or possibly something else. Ya never know.
Just a suggestion.
Charles
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(Proparc)That's exactly what I was trying to say! nice job, well said!
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That's a pretty dope score B!
Thank you it shows good potential !
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Just after you and Joe left the other day I went out to the shop and discovered a carbon 3 blade prop I forgot I had. Does the engine have a standard 1/4 shaft. If so you might want to try this prop next time you are out. Looks to be fairly low pitch ~4 and it's either a 12 or 13, I didn't measure.
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Sounds like exactly what I was looking for I'll definitely want to try it. thanks
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What does the Mag 52 weigh?
It weighs about 12.5 ounces ( added by Randy Smith)
I grabbed another mag 52 off ebay for cheap I wanted to get some bench time on it ,putting it together I decided to check the weight ready to fly . So ready to fly with alum. spinner, three blade C/F prop,NVA and venturi,and tounge muffler she weighed in at 15.3 oz. for the power to weight that's pretty good
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I grabbed another mag 52 off ebay for cheap I wanted to get some bench time on it ,putting it together I decided to check the weight ready to fly . So ready to fly with alum. spinner, three blade C/F prop,NVA and venturi,and tounge muffler she weighed in at 15.3 oz. for the power to weight that's pretty good
I never weigh engine with prop and spinners, because the weight then , can vary wildly .
I took a big batch of engines to the NATs last week, the 52s I took with me all sold, people are very happy with them
Randy
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I never weigh engine with prop and spinners, because the weight then , can vary wildly .
I took a big batch of engines to the NATs last week, the 52s I took with me all sold, people are very happy with them
Randy
I take this to mean that you can afford to stop to eat at Waffle House once on the way home? ;) LL~ Steve
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I take this to mean that you can afford to stop to eat at Waffle House once on the way home? ;) LL~ Steve
I did stop but they would not weigh my 52s with the prop and spinner on it ! ;D ;D LL~
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I never weigh engine with prop and spinners, because the weight then , can vary wildly .
I took a big batch of engines to the NATs last week, the 52s I took with me all sold, people are very happy with them
Randy
Randy your welcome for helping you draw attention to the mag 52,sounds like people are pleased with them. And I just thought I'd share what the engine sit up weighed. You have to consider total weight don't you?
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Randy your welcome for helping you draw attention to the mag 52,sounds like people are pleased with them. And I just thought I'd share what the engine sit up weighed. You have to consider total weight don't you?
Yes , your right, you definitely need to know what your total weight is, only thing is there is a huge difference i n the weights of spinners coupler nuts ,props , mufflers etc.. That is the reason I weigh them separate from the motor weight
Randy