CRRC Pro GF50I

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2robinhood · 05-17-2008, 07:09 PM

I unpacked my CRRC Pro GF50I from its box today.
Mounted the CRRC Pro pitts muffler.
Rans some different props on it for some rpm #'s.
oil mixture is 25:1, neddles are at factory settings.
Short 5 second wide open burst for tach readings.

Readings after 8 oz. of fuel run.

Xoar 19 X 8 @ 8200
Xoar 20 X 8 @ 7500
Zinger Pro 22 X 8 @ 6900
APC 22 X 10 @6900
JFX 23 X 8 @ 5600

Readings after 16 oz. of fuel run.

Xoar 19 X 8 @ 8400
Xoar 20 X 8 @ 7900
Zinger Pro 22 X 8 @ 7100
APC 22 X 10 @ 6900
JFX - ( did not run again, loaded engine to much at this time )

Readings after 24 oz. of fuel run.

Zinger Pro 22 X 8 @ 7200
Vess 22B @ 6800
Mejzlik 22 X 10 @ 6800

I think this motor with more break in and tuning should get the Vess 22B at about 7000.
My DL-50 is turning the same Vess 22B @ 7200.

ken crane · 05-17-2008, 09:44 PM

i found the 20 x 8 dynathrust so far to be the best flying prop. i have not tried the vess 22b yet but it turns 8000 lands like a dream and pulls the extra 300 (14 lbs) to the moon. each tank of fuel the motor runs better and better. it idles at 1300 and does not miss a beat. i need taller gear to run the 22. ran the pro zinger 22 x 6 tips went supersonic and acted like giant anchor when you slowed. made lots of noise and went no where quick!

lannybob · 05-24-2008, 08:36 PM

mines coming very soon i did go ahead and get a zinger 20x10 and an apc 22x10w. this motor will haul ass hands down.

dbluesman69 · 05-28-2008, 05:56 PM

I have a gf50i on a 17.5 pound stinger.the best prop I have found is a vess 22a.
It turns 7500 on the ground ,pulls hard out of a hover and has good top end speed.

lannybob · 05-30-2008, 09:31 PM

GOT IT crrc 50cc $249.00

lannybob · 05-30-2008, 11:39 PM

heres more pictures with the muffler on. quite a show stopper with the locals.

2robinhood · 05-30-2008, 11:50 PM

Here are a couple of pics of mine on the Stearman.

lannybob · 06-02-2008, 02:01 AM

heres some pictures of it being bench run today with a zinger 20x10

ngtangfai · 06-02-2008, 12:47 PM

Hi All

i will say a 22 X 8 wood prop is the best. close to 7000rpm with 27 lbs of thrust.

Ray
Paragon RC

lannybob · 06-05-2008, 04:33 PM

my shoulder is killing me from flipping over the crrc 50cc motor. why i dont know. i only have to flip it four times for it to start. im going to ace hardware and get me a 24" pvc pipe to start this sucka. runs great both upright and inverted. i have almost a half of a gallon through it and i dont think i'll ever have to adjust those factory settings.

ken crane · 06-05-2008, 10:10 PM

mine has well over 5 gallons thru it and man does this sucka scream

grossy · 06-24-2008, 07:08 PM

I have mine in a 80" Katana. Its swinging a 22X8 prop and runs sweet.

dealinrc · 06-25-2008, 03:19 PM

	Quote: Originally Posted by lannybob
	my shoulder is killing me from flipping over the crrc 50cc motor. why i dont know. i only have to flip it four times for it to start. im going to ace hardware and get me a 24" pvc pipe to start this sucka. runs great both upright and inverted. i have almost a half of a gallon through it and i dont think i'll ever have to adjust those factory settings.

The 50cc has a habit of kicking back and being hard to start. The distributor in South Florida has solved the problem. After many pains in the shoulder, they discovered that the timing was to far advanced. Try retarting it a touch. Also looking at the pics of your engine, you might have gotten a series 1 not a sieries 3. Big difference. The south florida distributor is http://www.rconlysite.com

lsd · 07-05-2008, 10:14 PM

	Quote: Originally Posted by dealinrc
	The 50cc has a habit of kicking back and being hard to start. The distributor in South Florida has solved the problem. After many pains in the shoulder, they discovered that the timing was to far advanced. Try retarting it a touch. Also looking at the pics of your engine, you might have gotten a series 1 not a sieries 3. Big difference. The south florida distributor is http://www.rconlysite.com

I just finished my GP yak54 up. I tried to fire up the crrc 50 and it bit me three times, damn near broke my fingers the 3rd time. I tried a dyna torque starter on it but she wouldn't turn over.
Could you please explain how to retard the timing. Also wondering how to tell the difference between a series 1 and 3.

2robinhood · 07-06-2008, 09:21 AM

I haven't had any problems starting or kicking back with mine.
As far as starters, the GF50I has two compression rings on the piston and it has great compression.
You will need a starter with tons of ball$ to turn it over.
I also would like to know the difference between a series 1 and 3.

05-17-2008, 07:09 PM	#1
2robinhood Bad-ass Super Contributer! Join Date: Aug 2006 Location: Egg Harbor City, NJ Age: 42 Posts: 2,008	CRRC Pro GF50I I unpacked my CRRC Pro GF50I from its box today. Mounted the CRRC Pro pitts muffler. Rans some different props on it for some rpm #'s. oil mixture is 25:1, neddles are at factory settings. Short 5 second wide open burst for tach readings. Readings after 8 oz. of fuel run. Xoar 19 X 8 @ 8200 Xoar 20 X 8 @ 7500 Zinger Pro 22 X 8 @ 6900 APC 22 X 10 @6900 JFX 23 X 8 @ 5600 Readings after 16 oz. of fuel run. Xoar 19 X 8 @ 8400 Xoar 20 X 8 @ 7900 Zinger Pro 22 X 8 @ 7100 APC 22 X 10 @ 6900 JFX - ( did not run again, loaded engine to much at this time ) Readings after 24 oz. of fuel run. Zinger Pro 22 X 8 @ 7200 Vess 22B @ 6800 Mejzlik 22 X 10 @ 6800 I think this motor with more break in and tuning should get the Vess 22B at about 7000. My DL-50 is turning the same Vess 22B @ 7200. __________________ . . . . . "What We do in Life...Echoes in Eternity"... Last edited by 2robinhood; 05-18-2008 at 01:39 PM.

05-17-2008, 09:44 PM	#2
ken crane I AM THE BEAST MASTER ! Join Date: Dec 2007 Location: SUNNY CAPE COD MA. Posts: 1,185	Re: CRRC Pro GF50I i found the 20 x 8 dynathrust so far to be the best flying prop. i have not tried the vess 22b yet but it turns 8000 lands like a dream and pulls the extra 300 (14 lbs) to the moon. each tank of fuel the motor runs better and better. it idles at 1300 and does not miss a beat. i need taller gear to run the 22. ran the pro zinger 22 x 6 tips went supersonic and acted like giant anchor when you slowed. made lots of noise and went no where quick! __________________ my you tube channel http://www.youtube.com/user/MRFIXIT220?feature=mhee

05-24-2008, 08:36 PM	#3
lannybob Gettin' Lower! Join Date: Apr 2008 Location: 126 south shore dr. #11 Age: 40 Posts: 33	Re: CRRC Pro GF50I mines coming very soon i did go ahead and get a zinger 20x10 and an apc 22x10w. this motor will haul ass hands down. __________________ ITS NOT THE END OF THE WORLD BUT YOU CAN SEE IT FROM HERE.

05-28-2008, 05:56 PM	#4
dbluesman69 Flyin' Around Join Date: Jan 2008 Location: tinity n.c. Posts: 2	Re: CRRC Pro GF50I I have a gf50i on a 17.5 pound stinger.the best prop I have found is a vess 22a. It turns 7500 on the ground ,pulls hard out of a hover and has good top end speed.

05-30-2008, 09:31 PM	#5
lannybob Gettin' Lower! Join Date: Apr 2008 Location: 126 south shore dr. #11 Age: 40 Posts: 33	Re: CRRC Pro GF50I GOT IT crrc 50cc $249.00 Attached Thumbnails 33.5 KB · Views: 139 35.7 KB · Views: 146 44.2 KB · Views: 131 __________________ ITS NOT THE END OF THE WORLD BUT YOU CAN SEE IT FROM HERE.

05-30-2008, 11:39 PM	#6
lannybob Gettin' Lower! Join Date: Apr 2008 Location: 126 south shore dr. #11 Age: 40 Posts: 33	Re: CRRC Pro GF50I heres more pictures with the muffler on. quite a show stopper with the locals. Attached Thumbnails 33.5 KB · Views: 85 37.7 KB · Views: 87 37.2 KB · Views: 92 38.1 KB · Views: 99 __________________ ITS NOT THE END OF THE WORLD BUT YOU CAN SEE IT FROM HERE.

05-30-2008, 11:50 PM	#7
2robinhood Bad-ass Super Contributer! Join Date: Aug 2006 Location: Egg Harbor City, NJ Age: 42 Posts: 2,008	Re: CRRC Pro GF50I Here are a couple of pics of mine on the Stearman. __________________ . . . . . "What We do in Life...Echoes in Eternity"...

06-02-2008, 02:01 AM	#8
lannybob Gettin' Lower! Join Date: Apr 2008 Location: 126 south shore dr. #11 Age: 40 Posts: 33	Re: CRRC Pro GF50I heres some pictures of it being bench run today with a zinger 20x10 Attached Thumbnails 49.4 KB · Views: 105 56.7 KB · Views: 70 44.8 KB · Views: 73 50.1 KB · Views: 77 __________________ ITS NOT THE END OF THE WORLD BUT YOU CAN SEE IT FROM HERE.

06-02-2008, 12:47 PM	#9
ngtangfai Flyin' Around Join Date: Feb 2007 Location: Ontario Canada Posts: 1	Re: CRRC Pro GF50I Hi All i will say a 22 X 8 wood prop is the best. close to 7000rpm with 27 lbs of thrust. Ray Paragon RC

06-05-2008, 04:33 PM	#10
lannybob Gettin' Lower! Join Date: Apr 2008 Location: 126 south shore dr. #11 Age: 40 Posts: 33	Re: CRRC Pro GF50I my shoulder is killing me from flipping over the crrc 50cc motor. why i dont know. i only have to flip it four times for it to start. im going to ace hardware and get me a 24" pvc pipe to start this sucka. runs great both upright and inverted. i have almost a half of a gallon through it and i dont think i'll ever have to adjust those factory settings. __________________ ITS NOT THE END OF THE WORLD BUT YOU CAN SEE IT FROM HERE.

06-05-2008, 10:10 PM	#11
ken crane I AM THE BEAST MASTER ! Join Date: Dec 2007 Location: SUNNY CAPE COD MA. Posts: 1,185	Re: CRRC Pro GF50I mine has well over 5 gallons thru it and man does this sucka scream Attached Thumbnails 138.7 KB · Views: 255 __________________ my you tube channel http://www.youtube.com/user/MRFIXIT220?feature=mhee

06-24-2008, 07:08 PM	#12
grossy Flyin' Around Join Date: Mar 2007 Location: Medowie, NSW, Australia Posts: 25	Re: CRRC Pro GF50I I have mine in a 80" Katana. Its swinging a 22X8 prop and runs sweet. Attached Thumbnails 71.8 KB · Views: 85 69.4 KB · Views: 73 67.5 KB · Views: 61 69.2 KB · Views: 53

07-06-2008, 09:21 AM	#15
2robinhood Bad-ass Super Contributer! Join Date: Aug 2006 Location: Egg Harbor City, NJ Age: 42 Posts: 2,008	Re: CRRC Pro GF50I I haven't had any problems starting or kicking back with mine. As far as starters, the GF50I has two compression rings on the piston and it has great compression. You will need a starter with tons of ball$ to turn it over. I also would like to know the difference between a series 1 and 3. __________________ . . . . . "What We do in Life...Echoes in Eternity"...

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