ASP four-stroke engines (please state size)

Brand: ASP

Overall:
3
Ease of assembly:
3
Build quality:
3
Flight performance:
4
Value for money:
4

READER REVIEWS
FlyinBrian  |  Dec 16, 2016

Strengths:
Ease of starting and reliability. . . .
Weaknesses:
None really. . . .
Overall:
Very pleased, excellent engine for the price, seems equal to an OS 91 I had in the same model. . . .

Overall:
4
Ease of assembly:
4
Build quality:
3
Flight performance:
4
Value for money:
5
Glyn R  |  Jan 24, 2014

Strengths:
Easy starting , good power output. Quiet running. Turns 12X6 @10000rpm. .
Weaknesses:
Removing the throttle lever entails removing the slow running assembly. Not difficult to do but fiddly. Does not burn its own crankcase oil like the FS91 version. .
Overall:
A super engine. My first four stroke. Well worth the money. .

Overall:
4
Ease of assembly:
5
Build quality:
5
Flight performance:
4
Value for money:
5
MikeS  |  Mar 27, 2013

Strengths:
Good engine for the price and great support. . . .
Weaknesses:
None I can think of. . . .
Overall:
Great engines, my 70 fs pulls my Pawnne around and is yet to dead stick on me. Easy to run in and setup. Easy to take apart and replace parts should have the need. .

Overall:
4
Ease of assembly:
4
Build quality:
4
Flight performance:
5
Value for money:
5
The Gineral  |  Jul 12, 2012

Strengths:
starting. . . .
Weaknesses:
none yet after 5 hours. . . .
Overall:
great little engine. good value for money-a little down on power. . .

Overall:
3
Ease of assembly:
3
Build quality:
3
Flight performance:
3
Value for money:
4
Gary Eyre  |  Jun 28, 2012

Strengths:
good value. . . .
Weaknesses:
nil. . . .
Overall:
would recommend. . . .

Overall:
4
Ease of assembly:
4
Build quality:
4
Flight performance:
5
Value for money:
4
Steve Hargreaves - Moderator  |  Jun 22, 2012

Strengths:
ASP61 & ASP70 Good quality, well built. Easy to start & very reliable. Low price. .
Weaknesses:
Maybe not quite up to OS standards but not so far behind as the price difference might suggest. . . .
Overall:
Great engines. They do everything an engine should at a bargain price. The ASP61 is actually a big bore 52 & shares the 52's crank case. Useful if your 52 sized model needs a bit of extra oomph.

Overall:
4
Ease of assembly:
4
Build quality:
4
Flight performance:
4
Value for money:
5
Dennis Jones  |  May 16, 2012

Strengths:
Good cheap reliable. . . .
Weaknesses:
none. . . .
Overall:
I have the 61 91 120 160 180, all run great hardly use fuel, mine all came from Just Engines so the back up service is great,they are so reliable almost a fit and forget engine. . . .

Overall:
3
Ease of assembly:
0
Build quality:
3
Flight performance:
5
Value for money:
4
Martin Harris - Moderator  |  Nov 01, 2011

Strengths:
Smooooooothest engine ever! Good performance Easy starting. . . .
Weaknesses:
Rather sensitive on the main needle - but this may relate to back pressure from my very effective home made siamesed (or should that be conjoined?) silencing system. . . .
Overall:
I'm running this engine in a 1/4 scale Cub using a "scale" 18 x 6 prop which it suits ideally. A few intermittent "problems" were traced to a dodgy throttle servo and so I can now say that it has behaved impeccably. It is an obvious copy of the OS Gemini and time will tell for its longevity but so far I would recommend it with absolutely no reservations. I'm just waiting for the day that ASP/SC produce a Pegasus copy!.

Overall:
4
Ease of assembly:
5
Build quality:
5
Flight performance:
5
Value for money:
4
Reno Racer  |  Oct 24, 2011

Strengths:
Great quality and super reliability and a fantatsic price. I have the ASP 61 FS and 91FS, both run like an old sewing machine, once properly broken in, I've never had an issue, Both 61 and 91 deliver good power. My 61 hits 10500 rpm on a 12x6 MA and 91 delivers 9750 on a 13x6 3 blade MA (9Lbs static thrust). .
Weaknesses:
Can be a bit leaky, so check all bolts on carb, rocker cover etc. . . .
Overall:
My 2 best and favorite models (Pulse XT 40 and H9 Corsair)- I trust both to an ASP 4 stroke without issue. . . .

Overall:
4
Ease of assembly:
5
Build quality:
4
Flight performance:
4
Value for money:
5
Les Littleton  |  Jul 26, 2011

Strengths:
easy starting and very reliable. . . .
Weaknesses:
none so far. . . .
Overall:
Very pleased with this engine from day one . fitted in pc9 in dec 09 and very well flown without one dead stick , great little engine. . .

Overall:
4
Ease of assembly:
4
Build quality:
4
Flight performance:
4
Value for money:
5
Bob Cotsford  |  Jul 20, 2011

Strengths:
Easy starters, good idle, all three engines I have produce the same rpm within 100 of 8,700 on a 15*8 prop. The quality seems to be consistent across the three units which were bought over a period of years. . .
Weaknesses:
none so far. . . .
Overall:
Good value, maybe not as powerful as OS or Saito, but a good deal cheaper to buy. . . .

Overall:
4
Ease of assembly:
4
Build quality:
4
Flight performance:
4
Value for money:
4
Lee Smalley  |  Sep 30, 2010

Strengths:
starts very easy. . . .
Weaknesses:
casting quality, but its inside a cowl so who cares. . . .
Overall:
really good price for a very reliable if not the most powerful engine in the world. . . .

Overall:
3
Ease of assembly:
3
Build quality:
3
Flight performance:
4
Value for money:
5
Biggestgerbil  |  Sep 30, 2010

Strengths:
Always starts easily, economical. . . .
Weaknesses:
Slightly heavier than some others in class. . . .
Overall:
With Just Engines after sales service to back them up this range of engies is a winner. All my ASP FS start easily and run well. Have been using them for about five years since I was given an old 52FS with no compression. It is in a Super 60 and stills does the buisness.

Overall:
3
Ease of assembly:
0
Build quality:
3
Flight performance:
4
Value for money:
5
Colin Leighfield  |  Dec 06, 2008

Strengths:
Easy to start, controllable and reliable over the whole rpm range, very well made. . . .
Weaknesses:
Haven't found any. . . .
Overall:
Not expensive for what it is and does everything I want. . . .

Overall:
4
Ease of assembly:
4
Build quality:
4
Flight performance:
4
Value for money:
4
Djay  |  Dec 03, 2008

Strengths:
Reliability, fuel economy, price,. . . .
Weaknesses:
Box was to small for the engine, so looked cheap upon arrival. . . .
Overall:
Ran straight out of the box and has not missed a beat flying my Hannibal in 50 degress c heat . Hardly uses any fuel, sounds fantastic. true value for money. .

Overall:
5
Ease of assembly:
5
Build quality:
5
Flight performance:
5
Value for money:
5
YakMad  |  Sep 24, 2007

Strengths:
Starts and runs well and fuel efficent for it size. Will turn big props. . .
Weaknesses:
Not really a performance engine more suited to a scale model rather than aerobatic, alot of vibration. . . .
Overall:
Good value for scale models look elsewhere for performance. . . .

Overall:
3
Ease of assembly:
3
Build quality:
3
Flight performance:
3
Value for money:
3
X
Login using Modelflying Login