Please let me know what you think of the JETT 76L ..Is it worth the money?

The .76 has the same case as the .90, so I would recommend getting the .90 instead.

What are you going to use it for?

Dave,


The Jett .76L BSE has the same case as the .40-.50 BSE engines.

It is roughly the same size as the OS.46FX and a bit lighter.

You can see the [link=http://www.jettengineering.com]Jett web site[/link] for details (click the BSE engines link).

That is were I seen it ...I like the idea of a 76 in the 40s physical size rage.
I would like to here some feed back from someone who hase tried one...JW

Send a PM to Bob27 about this. I have a Jett .50 and .90. As I recall a conversation with Jett last year The .76 is on it's way out. Not due to bad performance but that it's so close in performance to the .90--why bother, so like the others said, go with the 90.

One very important question here that will help us out for you is what kind of plane and flying are your going to do with it.

I think the point is to put this 76 in a .40 size plane due to its small case and light weight.

I hope not...

Autoguns,


Maybe the .76 is on the way out, but the .76L???

I don't think so.

The .76L is the largest of the .40 size BSE engines and if Dub retains all his wits, it is here to stay.
It cannot be inflated into a .90 (within manufacturing limitations) and retain the same .40 external size.

The price, however, is very painful...

Dar, it costs money to have fun![:-] I agree, Dub is VERY proud of his handiwork, with a price to match.

Just found it, didn't know that was made.

I see that his .60L (NOT BSE) is also in a .40 sized case.

Hello folks....

Some basic information....

The 76L is in a similar size case to the SJ-46 and SJ-50. It has a slightly taller cylinder (about .10"), but it remains a drop-in bolt pattern/drive washer position to match an OS 46. Flying eight with the lite-jett muffler is about the same as an OS.46.

With all of the testing we have done on this engine, its turned out to be a real amazing machine.

Yes, the .61L and .65L are available as case case, and are the same "46" size case. The SJ-60L "hover" engine is available specifically set up for 3D work.

All 3 engines are intended to turn larger props, a bit slower. The way this tends to work out, the smaller displacement engine is capable of higher rpm. All are outstanding for sport, scale and aerobatic applications.

The 76L is set up primarily to best run in the 9000-12000 peak rpm band, with better than average midrange torque. Mine is currently set up to run with the turbo-jett muffler installed, and turns a 14x4W over 11K rpm. It turns an APC 14x6 just over 10K rpm. The same engine with the lite-jett muffler will turn the same props about 300-500 rpm lower.

Not bad from a .40

All of the engines are available as side or rear exhaust.

I have attached a data sheet on the 76L and 60-Hover for those interested.

The BSE 90L, 1.00L and 1.20L are similar types of engines created in a "60" size case.

As I prefer to tell folks...... Price, is only one component of Value. Any Jett owner can tell you what I mean.

Bob

I bought a 76L BSE at the Toledo RC show. I can honestly say in my 30 years of involvement in the hobby it is the most beautifully engineered engine I have ever seen. After test stand break-in (The Dub Jett way) the engine performs flawlessly. There's just something cool about a .76 displacement in a .40 size mount. The 2 planes I have set aside for this engine are a Sig Somethin' Extra and The OMP "forty sized" Edge 540. I plan on running an APC 14 x 4W prop. I should run at 9500 rpm with this prop.

There is no way I can justify the money spent on this engine as something I "needed". I just came down to pure "I wanted it" as does every other dime I spend on a hobby that has given me untold joy for 30 years. I have a very understanding wife.

I have my sights on the 120L BSE that fits in a 60 sized mount. That should give the crop of 90 sized ships quite a ride.

Yes, they cost a lot for an R/C engine and Yes, they are a large cut above the rest. I have no regrets in buying such a unique and high quality product....and oh yes, they are American designed and manufactured just in case that is important to anyone out there.
I would bet money that Dub Jett subscribes to the saying: "I would rather explain price once, than poor quality over and over again".

Thanks for taking the time to post the info...JW

I have been looking at the JETT motors for some time now...I think I will just get one ....Thanks for the info....JW

Looks like the Jett 76L would be something we want to spoil ourself with when we want to splurge a bit. I saw it at the website and it looked good ... the comments above are really a great indication of the engines performance. A nice 40 sized engine turning 14x4 props ... its great fun I am sure. Just a query ... anyone run it with a 12x8 perhaps for speed?

Thanks for the kind words. Jett Engineering is a small business. We do some advertising, but many of our sales are from word of mouth. Fortunately, our products, engines and reputation afford us enough word-of-mouth to keep Dub in business

tIANci, in refernce to The 76L speed application - it will not run at speed-type rpm... not designed to. Its a torque engine. Runs best below 12K rpm. I guess if you prop it down in that range, it will happily turn a 12" prop at a consistant rpm... but it will not unload a great deal in the air.


Some of our test data. Users will typically see 200-300 rpm less than this:

Prop Muffler RPM

14 x 6 apc Lite 9800
14 x 6 Turbo 10400
14 x 4W Lite 10800
14 x 4W Turbo 11600
12.25 x 3.75 Lite 14000
12.25 x 3.75 Turbo 14500


I have also played around with a 15x4 on it and a couple of 3-blade props.

For reference, my SJ-46 and turbojett combination turns a 12x4 just at 14K rpm. The SJ-65H will turn the 12.25x3.75 at about 14,500 rpm with the Lite muffler.

So you can see, there are diminishing returns asking the .76L to turn up higher. That is one reason we do not sell it with the larger Jett-Stream muffler - it just does not work with this configuration.

The BSE-76L will turn an 12x8, but it will not unload much in the air. But I will take a few minutes to try the engine with a 12x8 and 12x10 just for a data point next time I have an opportunity.

The big block .76 and 90L will hault a 12x6 - 12x8 at substantial rpm. The 90L really likes to turn

Any questions, please feel free to email, pm me...... or post in the jett support forum.

Bob

I have a Jett 76l on a 40 size 3D profile plane and the whole rig is less than 4 1/4 lbs. I'm using a 14x4 Zinger Pro with excellent results. The rpm is approx 10.5K. The engine is beautiful to look at and performs better than any engine that I've run in over 25 years of R/C.

SC

Texan,


For an engine that cost you $325, where most modelers would spend $60-$100, it had better be!

The question is if it performs $250 better than that cheap engine you had there before (or in another similar model)...
It depends who you ask, I suppose.

Texan,


For an engine that cost you $325, where most modelers would spend $60-$100, it had better be!

The question is if it performs $250 better than that cheap engine you had there before (or in another similar model)...
It depends who you ask, I suppose.

[/quote]

Texan,


For an engine that cost you $325, where most modelers would spend $60-$100, it had better be!

The question is if it performs $250 better than that cheap engine you had there before (or in another similar model)...
It depends who you ask, I suppose.
[/quote]

DarZeelon,

I never had a cheap engine on there before. I have always wanted a Jett engine but could not find the right application for my type of flying. With the 76L weighing the same as an OS46, I just could not resist putting one in my Rat Fink Burrito. I wanted a radical setup which I am proud to say has been accomplished ... and then some! I don't know any other engine that would spin a 14x4 at +10.5K and not have a weight penalty. Light overall weight, reliable transition, and 14x4 prop make my Burrito hover like a dream.

SC

Texan,


Dub Jett make great engines.
But for most people it is a matter of budget and priorities.

If your budget for a complete plane+engine+radio is $450, you can afford a good ARF, a good .46-50 engine and a good 6 channel computer radio. But if you buy a $325 Jett, something is left out of the equation...

For some (or should I say most) money just doesn't grow on trees, to be picked off at will. And this Jett just isn't for them.

I'd love one ... would be great to spoilt myself!

DarZeelon,

Don't worry, there are a lot more guys that will stick a MVVS .49 with mini pipe on their profile planes. They are cheaper and run very well. However, Jett engines are targeted toward the high end market. They will probably sale a LOT fewer engines than MVVS or OS. But, the question was "...are they worth the price?" I could have purchased two MVVS .49 s for the price of one Jett .76l. But then I would not have had the pleasure of owning a jewel of an engine. I've been in this hobby so many years that the PLEASURE of owning the Jett makes up for the price difference. If you are just starting out in this hobby, you may not fully understand my comment. By the way, I use a JR 10X radio for the same reason!

SC

I am getting one for my 2nd Twist ...I think the 76L will be just right....JW

JW,

I think you will be very pleased with your choice. I found that McCoy plugs seem to work better than other the standard OS 8 or Fox MP. I'm running Omega 10% , McCoy MC 8 , and Zinger Pro 14x4 standard. Don't try for high rpm on this engine... it's designed to turn large diameter props. The Jett 76L is a real stump puller so make sure to hold on tight when you fire it up for the first time!

SC