New CRRC Pro GP50R prototype 50cc
07-10-2009, 04:35 PM
#51
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RE: New CRRC Pro GP50R prototype 50cc
ORIGINAL: Ratchet
When do you think these engines will be available?
=R=
When do you think these engines will be available?
=R=
PM Jody @ Valley View RCand he probally can tell you.
His name here on RCU is ( jedijody )
07-10-2009, 10:24 PM
#52
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RE: New CRRC Pro GP50R prototype 50cc
Here is the video of the maiden flight.
Had some real gusty winds, but made the maiden anyway.
When the winds are calmer and I get the engine tuned better, I will do some ringing it out and post some more vids.
http://www.youtube.com/watch?v=W-25qDAA9_8
Had some real gusty winds, but made the maiden anyway.
When the winds are calmer and I get the engine tuned better, I will do some ringing it out and post some more vids.
http://www.youtube.com/watch?v=W-25qDAA9_8
08-16-2009, 10:05 AM
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RE: New CRRC Pro GP50R prototype 50cc
Just an update on the engine.
It is holding up well so far.
I did change the ignition to an RCEXL ignition.
The stock CRRC ignition plug cap was loose and it would intermitingly spark.
CRRC made the new engine case from harder aluminum and I replace the first softer engine case.
The rpm numbers went down about 250-300 rpm.
I have run about 1 1/2 gallons through the engine since then and the rpm are coming back alittle.
I used to get 7500 rpm with a Mejzlik 22 X 8 ( Feb. 1st 2008 ) and it was about 40 degrees with low humidity.
Yesterday, I got 7300 with the Mejzlik 22 X 8 ( Aug. 15th 2008 ) and it was 92 degrees with 73% humidity.
I am still having an issue with the plane and cowl making the low end rich in the air.
I opened the outlets of the cowl more, which helped the issue, but it is still there.
I am going to run a tube from the carb into the fuse to take the cowlpressure away from the carb.
I'll keep you guys posted.
It is holding up well so far.
I did change the ignition to an RCEXL ignition.
The stock CRRC ignition plug cap was loose and it would intermitingly spark.
CRRC made the new engine case from harder aluminum and I replace the first softer engine case.
The rpm numbers went down about 250-300 rpm.
I have run about 1 1/2 gallons through the engine since then and the rpm are coming back alittle.
I used to get 7500 rpm with a Mejzlik 22 X 8 ( Feb. 1st 2008 ) and it was about 40 degrees with low humidity.
Yesterday, I got 7300 with the Mejzlik 22 X 8 ( Aug. 15th 2008 ) and it was 92 degrees with 73% humidity.
I am still having an issue with the plane and cowl making the low end rich in the air.
I opened the outlets of the cowl more, which helped the issue, but it is still there.
I am going to run a tube from the carb into the fuse to take the cowlpressure away from the carb.
I'll keep you guys posted.
08-16-2009, 04:40 PM
#54
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RE: New CRRC Pro GP50R prototype 50cc
ORIGINAL: 2robinhood
Just an update on the engine.
It is holding up well so far.
I did change the ignition to an RCEXL ignition.
The stock CRRC ignition plug cap was loose and it would intermitingly spark.
CRRC made the new engine case from harder aluminum and I replace the first softer engine case.
The rpm numbers went down about 250-300 rpm.
I have run about 1 1/2 gallons through the engine since then and the rpm are coming back alittle.
I used to get 7500 rpm with a Mejzlik 22 X 8 ( Feb. 1st 2008 ) and it was about 40 degrees with low humidity.
Yesterday, I got 7300 with the Mejzlik 22 X 8 ( Aug. 15th 2008 ) and it was 92 degrees with 73% humidity.
I am still having an issue with the plane and cowl making the low end rich in the air.
I opened the outlets of the cowl more, which helped the issue, but it is still there.
I am going to run a tube from the carb into the fuse to take the cowlpressure away from the carb.
I'll keep you guys posted.
Just an update on the engine.
It is holding up well so far.
I did change the ignition to an RCEXL ignition.
The stock CRRC ignition plug cap was loose and it would intermitingly spark.
CRRC made the new engine case from harder aluminum and I replace the first softer engine case.
The rpm numbers went down about 250-300 rpm.
I have run about 1 1/2 gallons through the engine since then and the rpm are coming back alittle.
I used to get 7500 rpm with a Mejzlik 22 X 8 ( Feb. 1st 2008 ) and it was about 40 degrees with low humidity.
Yesterday, I got 7300 with the Mejzlik 22 X 8 ( Aug. 15th 2008 ) and it was 92 degrees with 73% humidity.
I am still having an issue with the plane and cowl making the low end rich in the air.
I opened the outlets of the cowl more, which helped the issue, but it is still there.
I am going to run a tube from the carb into the fuse to take the cowlpressure away from the carb.
I'll keep you guys posted.
On mine , ive put the new CRRCpro ignition. No more problems. Ive removed the spark plug cap, and mounted again with the RCEX boot (silicone) and retractable tube with adhesive as RCEXL does. Also i've put a clamp (collar ? ) on rear side of plug cap.
My engine does the same rpm numbers as with old crankcase mounted (left on the picture). The factory send me the new crankcase time ago with all parts mounted , no serial number this time and i only have to change the piston, cylinder and carb. I don't know if bearings are now glued (sealed) to the crankcase , but it seems improved and will run as expected. I think it will be ready for sales soon.....
Regards
08-16-2009, 07:36 PM
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RE: New CRRC Pro GP50R prototype 50cc
That is the way mine came also. I just had to do the piston, cylinder and carb.
Jody's and mine both were down on rpm's after the case change, ours were down 200-300 rpm.
Jody's and mine both were down on rpm's after the case change, ours were down 200-300 rpm.
08-16-2009, 07:50 PM
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RE: New CRRC Pro GP50R prototype 50cc
Just curious, is this the same head as the DL. I mean it looks exactly the same, inside and out, from the pictures i have seen. I know that an engine is an engine but this head looks no different than my DL50's.
08-17-2009, 07:38 AM
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RE: New CRRC Pro GP50R prototype 50cc
ORIGINAL: 2robinhood
That is the way mine came also. I just had to do the piston, cylinder and carb.
Jody's and mine both were down on rpm's after the case change, ours were down 200-300 rpm.
That is the way mine came also. I just had to do the piston, cylinder and carb.
Jody's and mine both were down on rpm's after the case change, ours were down 200-300 rpm.
Regards
08-17-2009, 04:51 PM
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RE: New CRRC Pro GP50R prototype 50cc
ORIGINAL: Cambo
Just curious, is this the same head as the DL. I mean it looks exactly the same, inside and out, from the pictures i have seen. I know that an engine is an engine but this head looks no different than my DL50's.
Just curious, is this the same head as the DL. I mean it looks exactly the same, inside and out, from the pictures i have seen. I know that an engine is an engine but this head looks no different than my DL50's.
08-17-2009, 09:01 PM
#60
RE: New CRRC Pro GP50R prototype 50cc
Yup, I heard that was why DL switched to the 55 and the 111. The suppler started to sell their parts to other engine manufactures. If you look around you will see many new 50cc engines out of China with the DL head/piston, etc. They just use there own bottom end.
10-16-2009, 05:51 AM
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RE: New CRRC Pro GP50R prototype 50cc
OK the 426 th DA clone. CRRC better makes it perfect, otherwise why would we buy one, and DL has so much advance.
Maybe it wouldn't be a bad idea for the Chinese to make their own design, or if they have to, to clone a 3W for example.
3W engines are a littlebit heavier but for a reason I believe. The DA fans are widely spoiled these days, time to start spoiling the 3W fans. Run those cloning machines at full power so we get rid of these dreadful standoffs to apply a proper mounting method to
our 400bucks high end engines.
Maybe it wouldn't be a bad idea for the Chinese to make their own design, or if they have to, to clone a 3W for example.
3W engines are a littlebit heavier but for a reason I believe. The DA fans are widely spoiled these days, time to start spoiling the 3W fans. Run those cloning machines at full power so we get rid of these dreadful standoffs to apply a proper mounting method to
our 400bucks high end engines.
10-16-2009, 07:45 AM
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RE: New CRRC Pro GP50R prototype 50cc
ORIGINAL: cuwaert
OK the 426 th DA clone. CRRC better makes it perfect, otherwise why would we buy one, and DL has so much advance.
Maybe it wouldn't be a bad idea for the Chinese to make their own design, or if they have to, to clone a 3W for example.
3W engines are a littlebit heavier but for a reason I believe. The DA fans are widely spoiled these days, time to start spoiling the 3W fans. Run those cloning machines at full power so we get rid of these dreadful standoffs to apply a proper mounting method to
our 400bucks high end engines.
OK the 426 th DA clone. CRRC better makes it perfect, otherwise why would we buy one, and DL has so much advance.
Maybe it wouldn't be a bad idea for the Chinese to make their own design, or if they have to, to clone a 3W for example.
3W engines are a littlebit heavier but for a reason I believe. The DA fans are widely spoiled these days, time to start spoiling the 3W fans. Run those cloning machines at full power so we get rid of these dreadful standoffs to apply a proper mounting method to
our 400bucks high end engines.
11-08-2009, 08:03 AM
#63
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RE: New CRRC Pro GP50R prototype 50cc
I see the GP50Rs are hitting the streets now, does anyone have any real world experience yet? I am looking for a reasonably proced engine for my GS P-51, need the RI to fit the cowl.
Would appreciate any information...............thanks.
Would appreciate any information...............thanks.
11-19-2009, 01:11 PM
#64
RE: New CRRC Pro GP50R prototype 50cc
Hey 2robinhoodl;
I heard that the new GP50R has some issues [sm=confused.gif]? Have you heard or experienced anything that would confirm that? I don't know what those "issues" may be.
I heard that the new GP50R has some issues [sm=confused.gif]? Have you heard or experienced anything that would confirm that? I don't know what those "issues" may be.
11-19-2009, 10:09 PM
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RE: New CRRC Pro GP50R prototype 50cc
Yep.
1st issue with my 1st prototype was the engine case was made of too soft of aluminum and ater some run time the bearings started to get loose ( wearing the case ).
Second was two failed ignitions. ( I am running a RCexl ignition now ).
The new harder engine cases did not perform as well as the 1st prototype did. ( engine lost 200 - 300rpm ).
Now it seems to be running fine, I just need to put more time, time, time on it.
But since deer season is in, all my planes will not be used till around February. ( maybe one or two times on a nice weekend ).
Jody may have some more issues with his.
Maybe he will chime in.
1st issue with my 1st prototype was the engine case was made of too soft of aluminum and ater some run time the bearings started to get loose ( wearing the case ).
Second was two failed ignitions. ( I am running a RCexl ignition now ).
The new harder engine cases did not perform as well as the 1st prototype did. ( engine lost 200 - 300rpm ).
Now it seems to be running fine, I just need to put more time, time, time on it.
But since deer season is in, all my planes will not be used till around February. ( maybe one or two times on a nice weekend ).
Jody may have some more issues with his.
Maybe he will chime in.
11-20-2009, 09:51 PM
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RE: New CRRC Pro GP50R prototype 50cc
Our 1st prototypes were power houses and this look like it was going to be a great engine.
Then things started falling apart ( company wise ). It took a long time to get the second reworked engine, which isn't the power house the 1st one was.
After deer season I will throw more time on this engine.
Then things started falling apart ( company wise ). It took a long time to get the second reworked engine, which isn't the power house the 1st one was.
After deer season I will throw more time on this engine.
03-15-2010, 05:41 PM
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RE: New CRRC Pro GP50R prototype 50cc
ORIGINAL: fromadvisor
............... And now???????[sm=50_50.gif] is [sm=drowning.gif] or [sm=thumbup.gif] ?????
............... And now???????[sm=50_50.gif] is [sm=drowning.gif] or [sm=thumbup.gif] ?????
Well my flying goes to almost nothing when hunting season rolls in.
Hunting season is over now, but our weather has been very bad since November and it hasn't let up.
We just got 4.3 inches of rain in 3 days, and that has been over and over and over.
My flying field is a mud hole.
03-15-2010, 05:56 PM
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RE: New CRRC Pro GP50R prototype 50cc
I have this engine NIB. It is the revised version. I need the get a prop (on order-22x8 Xoar) and build a test stand then I can run the engine. I will post results as soon as I can.
03-22-2011, 02:48 PM
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RE: New CRRC Pro GP50R prototype 50cc
ORIGINAL: jedijody
Pretty easy to just make one, it's the same as a DLE55.
Pretty easy to just make one, it's the same as a DLE55.
He just PM'ed me and to him to contact you to confirm, so expect an e-mail.
How you been Jody ?
Your son still over seas ?
]