DA50-R (newest version)
Slimline wraparound Pitts
NX 22x8
89 octane
Amsoil 100:1 mixed at 80:1
7200RPM (7260 peak!)
Sea-level (FL) temp mid 60's with moderate humidity
I've got about 7-8 gallons through it.

I saw different octane numbers. Does it matter? Which is the best with DA?

3w 106 with KS 1060s (brand new on lawnboy 40:1)
Mejzlik 28x10 7300 rpms
Mejzlik 29x10 6600

3w 150 with KS 1090s
3w 3d Prop 6250
Fuchs freestyle 32x10 6400
mejzlik 32x10 6700

3w 150 CS PeFa Cannisters, 32x12 Fuchs prop = 6150 rpm's

New 3w 157 CS Pefa Cannisters, 3w 3d prop = 6,300 as of now.
Garrett Morrison

BME110 w/Pefa LL canisters:
First tests, 2 years ago:

Mejzlik 28-10 @ 7050-7100
Menz 28-10 @ 6500
Mejzlik 29-10 @ 6500
Menz 27-10 @ 7100
Mejzlik 26-10 @ 8100

never tried an actual "Tuned Pipe"

Currently, the same engine, after sitting for 9 months and about 250 hard flights on the engine:

Mejzlik 28-10 @ 6650 HOT

I think my baby needs to be cleaned up, decarbonized, and have a new set of rings. She's showing my neglect and her age.

BME 110, test by Keith with my 19-18 carbon GT80 race prop, 10,000 rpm on the ground..
GT80s on glow fuel turn this prop at 9000 on the ground, 11,500 in the air at 188 mph.....
Herbrandson 289, 21-27 carbon race prop, 9400 rpm in the air, 234 mph....
DA 150s turn around 10,000 rpm with race props, don't know what size
All with open exhaust, no pipes or cans, we LIKE noise

That sounds really cool, !!!!! I didnt know gas engines could run on glow, how does that work?

Drill out the fuel passages to allow 2X the flow and screw in a glow plug...Mix methanol with the same oil ratio that works for you with gas...We like to use about 6% oil and whatever nitro works well for racing, about 25%....
Or use the stock ignition, it works well with glow fuel..

I am looking for a race prop for ZDZ super 80 on TF giant scale mustang. Please post website where I can purchase one of these. Possibly 20x16

Check you PM box....

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BME110-new(a couple gallons thru)-stock mufflers
Mezj 28x10-6500
3W 27x10-6100
Beila 28x10-5900
number with engine hot, 100 ft ASL, 75-80 deg.

DA 50
Slimline Pitts mufler
menz 22 X 8
Cheap gas lawnboy 32:1 ashless 1/2 gal thru
Indiana 40% humidity 70 deg.

7100
Idle about 900

Question what should the idle be?

Wizard, ptta-putta-putta-putta-putta. That help?