Hi . I need info from anyone who owns a brison 3.2 engine. I'm thinking of using this engine on a aeroworks ultimate biplane with a 68 inch wing span. I was going to purchase a d a 50 , but some other flyers told me that the brison would be ok for this airplane as long as i wasn't going to do any extreme 3 d flying . I do, however, like to fly pattern style manuvers . they require long vertical lines and lots of power.
Any one with experience with this engine ? can it swing a 22*8 prop ? could i use a 23*8 carbon fiber prop without worry that the engine will over heat??? any ingo would be appreciated. thanks.

I've been using several Brison 3.2's for the past few years. They run great with a Zinger 20X11 at 6800 RPM. I fly sport type planes that weigh 20 pounds. The performance is fine for me. Dan.

The Standard prop for the Brison 3.2 is a 22 X 8

I like the Menz best but usually use a Xoar 22 X 8.

I don't own any Zingers and do not plan on it.

Keep in mind that a Vess 22B is a 22 X 10 as I have measured them on my prop pitch gauge.

i like a 22 x 8 Menz, Mejzlik on the 3.2. I have had mine 10 years on various planes runs great 3d on a 23A Vess

what is the 3.2, a 70cc?

52.5 cc

The 3.2 is 52cc. I own 3, 3.2 Brison's, I use Zinger Pro's 22X8's. I had a 17.5 lb. Edge that would go straight up from a 20' roll out, and was fully capable of any 3D manuvure you have in mind.

The Brison 3.2 will 3d the plane fine if it's under 19 pounds. Flew my 18.5 to 19 pound Ultimate of the same size with no reservation. For killer 3d an MSC 22-8 is a hot prop. Menz does ok but the Pau 22 3dB or 22-8 Xoar laminateds would be better.

Good engine. The DA really doesn't have any appreciable gain over it, plus the 3.2 is a tad lighter

Thanks for the vote of confidence, T.O.M. The only thing I've seen that I thought could give my Brison 3.2 a run was a DA 50 on a canister. My Edge was 3 mph slower than an Extra 300, DA 50 with the can. He was running a 23X8 Mejezlik, I was running a Zinger paint stick 22X8. I have sence switched to the Zinger Pro, but lost the Edge, and didn't get chance to see the difference, maybe this summer?

Put a can on your Brison?

brison lighter than a DA? areu serious....i thought brison and zenoahs wee in the heavyweight class

My first gas engine after the realization that my pockets were not deep enough for heli's

The Brison's are now revolution, correct?

Weigh them side by side some time. It's all been done many times already but see for yourself

Brison=Revolution

http://www.rc-revolution.com/brisonenginec.htm

i have run mine or various birds over the years, no crashes on the motor.

Have 4 of the 3.2 Brisons , They all love 22x8 NX props . Instant throttle response and plenty of pull . Depending on you density alt. and tuning you should get around 7400 RPM on either. I suspect a Xoar 22x8 will get similar results. Using a Zinger will work but if you want the most from your engine use a higher quality prop with less flex .

Not to be argumentive, CK, but, to each his own. Until I have a chance to check on the performance of the Zinger Pro,(performance in my opinion equates to mph), all I can do is relate to what I myself have witnessed. On a regular 22X8 Zinger my engine turned 6900 rpms. When I switched to the Zinger Pro, it ran 7400, same as you claimed. I'm reasonably sure there was an improvement, just how much, can't be judged standing on the ground. I will find out this summer.

Right now, all I'm running is a Pitts style muffler. From what I have seen, from other engines on cans, if the Brison saw the same improvement, I believe it would be a real monster. What it really boils down to is the port timing, I have never measured it to know how it's timed.

GreaTOne_65 No argument here , just what I have experienced . Not trying to step on your toes . Just inputing my experience to help the OP

That's the whole idea, trying to help the other guy. We can never get enough information, IMHO!

GreatOne,

In the beginning (quite a few years ago) I used Zingers and got those big rpm numbers with them. This was with the Brison. However I noticed there were flight speeds and attitudes where things just didn't seem right, especially at ultra slow speeds. This was my entry into propeller performance experiments.

Though a whole lot of trial and error I found that RPM wasn't the qualifier for an acceptable, good, or great prop. How the prop moved air and how the plane performed with different props was what qualified a good prop. The MSC was a great example. It never turned high RPM. In fact it was usually the lowest RPM count in the bunch. But the planes performed slow flight, climbs out of hover, and downline braking like never before. They "stuck" better in turns, and didn't break out of other maneuvers like they had before.

The results were generally consistent. None of the planes performed as well with Zingers as they did with other props. There's a lot more to how a prop works than how fast it spins. Try a little experimenting with actual performance while not predetermining a prop by RPM count and see for yourself.

The RPM a prop spins is about as important it's color when judging a props performance.</p>

My setup a few years ago was a Brison 3.2 on a KS 1060 tuned pipe. I had the header custom made, and I think it was between 12 and 13 inches in length. I picked up close to 400 rpms over my JA peacemaker pitts muffler.

I had this setup on a SD Yak that weighed about 18lbs. Rock and Roll 3D platform.

Oh. I used MSC 22x8 props, and NX 23x8 props.

Mine was blue in color with a CH mechanical advance ignition.

I think there's about 4 of us in this thread with the same engine Krayzc shows in his pics. Most all of those were mechanical since Gary changed to syncro spark about the same time he stopped anodizing cases. In the early days you could tell the size of a Brison engine by the case color. Later he went with the polished case versions. Same engines, different case colors.

i remember when i was a kid my dad had a gold brison a blue and a little silver one.... from what i remember they didnt have good mid range ,they would burble like crazy, maybe they werent tuned right