ASP engines , who sells them and are they a good value?


thanks


Dan

I have had two, still have one. I got the one I still have, a .46, at one of the local hobby shops. It's basically a cheap chinese knock-off of an OS. I bought it for a stupid combat plane, but now it's on a Magic.

It won't die, it always runs, therefore I still have it. It puts out about the same power as the .46FX for about $45 less.

However, it ain't much of an engine. The front bearing leaks so much air you cannot shut the engine off with carburetor alone. It blows a little fuel past that front bearing at full throttle. The muffler only goes on w/o leaking when you high-temp silicone between the muffler and the engine.

Fit and finish just isn't as nice. Do you have a crap airplane that needs a cheap engine? Get the ASP.

BTW, I have heard it said that A-S-P stands for "ALMOST SPINS a PROP"

ASP, Magnum, Super Custom (SC), and Sanye are all made by Sanye in China. Magnums are readily available in the US. The SC's are rather common in England and some of their protectorates. www.justengines.unseen.org in GB sells the ASP line and do a lot of business. They are easy to deal with where ever you are.

The Sanye type engines have been around for a while. Years ago Indy R/C sold the ASP's and then Horizon Hobby sold them until the last couple years. It appears that the Evolution engines are made by them.

The very first Magnum engines were made by Thunder Tiger. These engines will have TT typee names like GP or PRO. But Magnums have been the same as ASP's for some years now.

There is a newer series of ASP and Magnum engines (The XLS series) that is really setting the world on fire. They look and run like the OS FX series engines except the liners don't peel. There's a XLS 52 ABC that's in the Magnum line up has a round head but otherwise looks like the OS 50 SX ringed engine . Most of the 2 cycle engines are genuine ABC.

The four cycle engines look like the OS 4 cycles. They newer ones campare favorably with the Surpass II series. There is a difference around the area of the OS 70 Surpass II because the Magnum/ASP is in the 52 frame and is a 61. It runs about the same as a Saito 56 more or less.

The older series of 2 cycle engines in the 91, 108, sizes, though very reliable, were rather heavy and in a 120 frame. The new XLS91 ABC runs extremely well and so far seems to be free of the bubble problem found in the OS 91 FX. Right now they do not have a 61 displacement engine in the new series. They may never? The 91 is in a 61 frame.

Enjoy,

Jim

ASP = Magnum. I'd buy one.

I have a fairly new ASP 1.08, best running two-stroke I've ever had.

I have 3 diferent ASP 2 stroke engines and 1 Four Stroke.
Those are:
ASP 40, ASP 46 and ASP 52
All of them are Series 3 models
ASP 61 FS , in a 52 case.

I bought them from Just Engines UK.
Excelent engines, beter performers than OS (the 2 strokers) , a little less than OS (the Four Stroker).

The quality is Good, some miror leaks, but not affecting performance.
A lot of people are using them at my Club, we have yet to find one that has a problem, or does not run well.

Give them a chance, you won't regret it.

Baper

I have an ASP 1.60 twin four stroke that runs great, sounds like a harley and puts out almost a full horsepower more than the O.S. 1.60 twin.

I've got three ASP engines.
Two 91 2 cycles second generation & the third is a Third generation.
They all run geat .
NEDYOB

we run several as good as many - better than most at a price you keep quite about. the new 52s is the best performance from a 48/50 type engine it spins props that make the irvine53 look not so good and puts the scare into my rossi's. we now have two!!![>:]

thanks adrian , and all you good people at THE UNIVERSE


DAN

I've had probably 4 of them over the years. Still have and run 2 of them regularly and they are well over 10yrs old. Totally agree with all above posts though....at least on the older version ASP's....very decent engines...just put up with slight leakage here and there.
With a little more maintenance then an OS I'd swear my ASP .91 2stroke will whip the crap out of an OS91 FX....the ASP seems to be a monster really...alot of power. I do keep it up and sealed well too, that in itself makes a big diff.

Go with it .....I don't think you can go wrong

Can someone clarify this: are the new Super Series ASP 52's still having problems with the front bearing leakage, or is it only the older versions that are prone to this problem. I have not heard anyone mention this leakage about the Magnum .52 XLS. Of the two , does anyone know how they compare power wise, the ASP specs claim 1.9 hp. @ 17000 rpm, the Magnum specs only show rpm values for different props.

The ASP and Magnum 52 two strokes are not the same engine if you talk to Mike Greenshields or Paul Landels. Like you, I've only heard the round blue head Magnum as the one most talked about and I don't remember much talk about the front seal leaking? Maybe I'm having a brain fade? They are into the 2nd production run now on the Magnums.

By looking at the pictures, the only difference appears to be the head?

No two engines even of the same brand and model will necessarily run the same.

The listed hp ratings of a model engine are almost useless. The so many rpm's with a certain prop is a little more useful but even then, temperature, density altitude, etc will make a difference in your personal observations.

Why don't you look on www.justenginhes.unseen.org and Email Paul and ask him this question?

Enjoy,

Jim

Although ASP and Magnum are generally the same, the new 52 2 strokes are different animals. At least that is what Paul from Just Engines told me. Perhaps I got it wrong somehow, could anyone clarify this?

Ernie

The new gen ASP.91 is a great motor and value!

If you're still looking for a source for the ASP's and can't find one here in the States, let me know and I'll tell you how you can get the without having to shop over the pond.

I had a 1.st gen. ASP, and bent the crank tightening the prop :-)

Ernie,

They apparently don't have the same timing.

It seems the Magnum is more RPM oriented, capable of spinning a small, 9x6 prop at 18K (if their ads are truthful...).
The ASP, according to the test performed by JustEngines themselves, is more dedicated to spinning larger props.
I concur after seeing an ASP run.

Visually, they differ primarily in the head. The ASP has an OS FX/SX like head, while the Magnum has an MVVS like, blue anodized head. I think the SC/SY are more like the ASP. The badging is also different, of course.

I am still trying to determine if there is a leakage problem @ the front bearing on the new Super Series ASP's. Have any of you who are running these observed any leakage. Am about to buy a .91 and a .52 as they look like great engines, just want to go in with my eyes open. Goldscallop in Canada offers them at good prices $USD, but cannot answer any specific questions about motors, and suggest contacting Justengines. I would like to get impartal input from people who have actually been using them, with any comments regarding leakage, and how they perform. Thanks, Joe

Joe,

If an engine leaks air, or fuel, through the front bearing, the bearing is not the problem, but a loose fit of the crankshaft within the crankcase front housing, where it must act as the intake valve.

A loose bearing (too much ball tolerance) could cause this to happen, however.

Dar, I'm a bit confused, a loose fit of crankshaft within the housing? You must mean loose fit of bearing to housing. In any case, I'm just trying to establish if there ARE still leaks at the front area, which I assume are not intended as intake valves.
Sincerely, Joe

Joe,

I meant what I wrote.

In a bushing bearing engine, the crankshaft both spins and seals against the bushing.
Below the carburettor there is a port, which when the port in the crankshaft is in line with, air and fuel are sucked into the crankcase chamber (under the piston). When the two ports are out of alignment very little oil, or pressure leaks out.

A ball bearing engine works essentially the same way, but since the crankcase front housing is not used as a bearing surface, less oil clearance is needed between the two components. The crankshaft should seal against the front housing, when the two ports are out of alignment, so no major leakage should take place.

If it does, the seal is bad, which means either the crankshaft, or the front housing (or both) is worn, or they are mismatched for size.

If the bearing has excessive internal freedom (balls are too loose), the crankshaft will wobble and wear itself and the corresponding, front housing internal surface and quickly enough, you have got a leak of air (intake), or fuel, or both.

Crashmaster, please tell us about your source for ASP. Thanks loads.

Dar, people usually refer to ASP and Magnum as being exactly the same. I wonder if the .52's are the first instance of them being different, or if folks simply assume that they are the same.

Ernie

Dar, thanks for your clarification. Sounds like the bearing alignment is important when replacing the front bearing. I have seen bearings listed as sealed and assumed that it was the bearing that was making the seal. You mentioned that you have seen the ASP's run. Were these the new Super Series 3 one's? If so, did you observe any leaking at the front area, as this is what I'm primarily trying to establish. I always enjoy reading your posts, which I'm sure are enlightening to others as well.

Just Engines labels their ASP "S" 52 2 cycle as being a long stroke engine. It might have a longer stroke than the 46 but the bore and stroke of the Magnum 52 2stroke is exactly the same as the ASP.

Jim