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Magnum Engines XL 70 RFS Blue R/C 4-Stroke Engine

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16 Review(s)

Availability: Out of stock

$169.99

No. 210857

Magnum Engines XL 70 RFS Blue R/C 4-Stroke Engine

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User's Guide (913.1 KB)This is the User's Guide for the Magnum XL .70RFS Engine

Customer Reviews

Items 11 to 16 of 16 total

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Tune that 4S Review by Ken
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Bought the XL 70 RFS about two years ago. My first 4S. Had it in an old texan and it pulled it around okay. Recently installed in a hi performance 46 size bipe but it had set for awhile and just didn´t seem to have enough power. Worked with Todd at Global´s excellent tech support and found a couple of things. First read the manual and adjust the valves. There´s an extra 1000+ RPM to be found when you get them right! Engines been a real power house spinning an 11-7 3 blade at 11200 using 15% fuel. Idle is fantastic and transition is excellent. Running inverted in a full cowl doesn´t overheat and a little loctite around the muffler sealed up the little bit of oil blow by messing up the inside of the cowl. Keep the "O" rings fresh and all the bolts tight. Bottom line, like every other mass produced product a little bit of attention and fine tuning has turned out a real Gem!!
(Posted on 8/30/10)
Great running engine Review by Jim
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I have had my Magnum 70 for over a year now and it has had only one problem. I was on my 5th tank of fuel when one of the values stock open losing power. I was able to get my Spacewalker safely landed. I called Hobby People where I had bought it and they had me send it back in for repair. It did not cost me anything except postage. Hobby People had the engine repaired and it has more powerful than before. It has been running for almost 10 months now without any trouble. Great power and a perfect idle. I only gave the engine 4 stars becasue of the miss hap, but I will buy another Magnum. Infact I have a great running Magnum 91FS in a 1/5 scale Fokker DR-1 (Posted on 8/30/10)
Magnum XL.70-RFS engine review Review by rothe
Rating
I purchased a Magnum XL.70 about two weeks ago, and it is currently mounted in a Hangar-9 twist .40. The engine works great! I put just over a half-gallon of Byrons 10% fuel through it on the test stand, with no problems at all. In the last week I have put another gallon and a half through it. The engine works great for the twist´s light airframe. giving it unlimited vertical performance. (Posted on 8/30/10)
Ultimate Power Review by Bob
Rating
I would like to say some good things about these engine´s. Since I started flying approximately 10 years ago and my fourth RC aircraft happen to be a Global Ultimate Biplane ( Nine years old to date and still flying ) with a Magnum .52 RFS, then eight years later I gave the Ultimate away to a friend, it returned again to me a year later.
The Magnum .52 ( now nine years old and still running great with no repairs and no adjustments ever needed )is now being used in my 52" wing span Decathlon to this day, so I had to find another engine, so I purchased the Magnum .60 RFS last year to fill its needs.
The Magnum .60 engine preforms great, but the Ole Biplane is still a little under powered. So first of this year a fellow flyer gave me his Global Ultimate he purchased last year luckily, since they have been discontinued now several years.
So now I have two Global Ultimates and I purchased the Magnum .70 RFS to fit into the Second Bipe. After a few tanks of fuel and few tweaks to the carb, she is flying the Ultimate proud, lots of power for the size of the aircraft. The Magnum .70 RFS should have been the first engine in this airplane along time ago, the performance of this aircraft now is overwhelming, 3D flying is at hand.
Power, response, and trust has been establish again in the Magnum line of engines. But to give the others their due, they may have the power curve over Magnum engines, engine size to engine size, but as far as I have seen, that is about all. (Posted on 8/30/10)
Crow is best served as a left over Review by Dave
Rating
Wow. What can I say?

My first "review" of this product was 3 nights ago. At that time, I had spent probably more than an hour and a half in "run time" attempting to get my Magnum 70 engine to perform. It didn´t want to turn any more than 9,000 rpms with a 12X6 prop, and the idle was no lower than about 3,400.
The morning after I posted the first "review", I had an email waiting on me from Global/Magnum support, as HobbyPeople had forwarded a copy of my "review" to them. Needless to say, I was quite shocked, and quite frankly I didn´t think that HobbyPeople would even publish my "review" of the Magnum 70. I was very surprised to find they did. That in itself speaks VOLUMES for HobbyPeople; I can´t remember the last time I read a negative review on either a retailers website much less a trade magazine. Can you?
Global/Magnum support was extremely concerned with my experience with their product, and wanted a chance to "make things right" as a result. We discussed the symptoms and I even sent them some photos of what was happening with this particular engine. Without a doubt, Global/Magnum wanted 2 issues to be resolved; 1) getting a replacement engine in my hands and 2) getting the "problem" engine in their hands as a matter of product developement.
I was given the opportunity to have a UPS "call tag" sent to me, and all I needed to do was box the engine up and send it to them. Having bought the engine at the local hobby shop, and knowing when I bought it that the owner of the shop had purchased more than one, I proposed a "reasonable" resolution of me simply returning my engine to the hobby shop for an exchange of another one, and the hobby shop could send the "problem" engine back to Magnum/Global.
This morning I got a call from the local hobby shop telling me they were holding a Magnum 70 engine for me, and to bring the "problem" engine in for a swap. Global/Magnum had contacted them and worked out the details, and as of this afternoon I have a Magnum 70 installed on my Sig Somethin´ Extra that runs MUCH much better than the first one. I think this one is going to perform up to spec.
So what is the moral of the story? I guess in just about any industry, their can be a "quality control" slip up that can happen. How often it happens will make or break a product. The fact that Global/Magnum was very surprised to see my initial "review" which lead to a more than timely resolution suggests to me that A) this doesn´t happen often, and B) if and when it does, they are on top of things with their support of the product.
Ok, last bite of crow going down. That being said, I would definitely purchase another Magnum engine in the future, without hesitation.

Sincerely,
Dave, AMA 55707 (Posted on 8/30/10)
Magnum 70 operation Review by David
Rating
I own several Magnum 70s, they all run perfectly, little or no maintenance. They have given me many hours of pleasure. (Posted on 8/30/10)

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