| MudmotorTalk.com https://www.mudmotortalk.com/mmt_v2/ |
|
| 23 GDLT turning a Backwater 9x7 Prop https://www.mudmotortalk.com/mmt_v2/viewtopic.php?f=6&t=61829 |
Page 1 of 1 |
| Author: | Cubman [ Sun May 17, 2015 1:06 pm ] |
| Post subject: | 23 GDLT turning a Backwater 9x7 Prop |
I have a 23 GDLT on a Go Devil 1838. I have always run 9x6 props, but when I ordered one from Backwater last week they were out and suggested I try a 9x7. The motor will turn about 4300rpm out of the water. If I run the motor just like I always have it turns 3260rpm. If I push down on the handle until the cavitation plate is just at the surface I can turn 3500rpm. Are my RPMs ok or do I need to go back to a 9x6? Or do I just need to weld a piece of flat bar on the back of the cavitation plate so I can trim the motor a little? Also, this brand new prop only measures 8.5" in diameter. Does anyone have experience with how fast these wear out? Compared to other true 9" diameter props. |
|
| Author: | flint87 [ Sun May 17, 2015 4:29 pm ] |
| Post subject: | Re: 23 GDLT turning a Backwater 9x7 Prop |
No change in speeds? Sent from my iPhone using Tapatalk |
|
| Author: | Delta1389 [ Mon May 18, 2015 7:22 am ] |
| Post subject: | Re: 23 GDLT turning a Backwater 9x7 Prop |
If your speeds are the same I wouldn't worry too much about the low rpms are, though they should be a good bit higher. But yes, backwater props wear out faster than any other prop I have run. |
|
| Author: | Cubman [ Mon May 18, 2015 9:22 am ] |
| Post subject: | Re: 23 GDLT turning a Backwater 9x7 Prop |
I never checked the speeds before, but it does seem a little slower now. Hopefully trimming the motor will help a little. It feels alot faster when I run it with half the prop out of the water. |
|
| Author: | flint87 [ Mon May 18, 2015 1:02 pm ] |
| Post subject: | Re: 23 GDLT turning a Backwater 9x7 Prop |
| Page 1 of 1 | All times are UTC - 6 hours |
| Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group http://www.phpbb.com/ |
|