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| GDSD 35 3 Blade RPM's? http://www.mudmotortalk.com/mmt_v2/viewtopic.php?f=41&t=23559 |
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| Author: | bbb [ Sun Oct 30, 2011 2:32 pm ] |
| Post subject: | GDSD 35 3 Blade RPM's? |
I run a heavy 19ft boat and yesterday by myself, I was turning 3850. That's with some mods too. When I added a 125 pound passenger and another 100 pounds in gear, I was running 3750. Prop is new. I can slap a brand new mudbuddy big blade(12.25x10) on the boat and be hitting the rev limiter of 4300 with either of those two loads above. The GD prop is smaller in diameter, so your answer must be the pitch of the prop (12x12 i believe) and cup on the blades. My hope is that when the GD prop wears down some, I'll still get good push and speed with it. I know when I lose a little off the BigBlade, my push and speed are poor. |
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| Author: | Gigafowl [ Sun Oct 30, 2011 5:45 pm ] |
| Post subject: | Re: GDSD 35 3 Blade RPM's? |
FTR - the GD 3 blade is 11" - GD calls it a 12 pitch - but I believe it is between 11 and 11.5 the GD 2 blade is a true 12" by 12 pitch made by Hopkins to GD specs.... Hopkins will sell you a custom pitch - but it will cost more money - but might be worth it.... A stock motor struggles to turn them on day one - but as they wear the speed and rpms climb as they hit their optimums - until they finally begin to loose speed and rpms go up significantly and they develop "prop lift" and want to pop out - especially the 3 blade after it is worn out... |
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| Author: | meterman3 [ Sun Oct 30, 2011 7:02 pm ] |
| Post subject: | Re: GDSD 35 3 Blade RPM's? |
Hopkins does not make gd props anymore And I drive a pd and approve this message |
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| Author: | Gigafowl [ Sun Oct 30, 2011 8:19 pm ] |
| Post subject: | Re: GDSD 35 3 Blade RPM's? |
| Author: | bbb [ Mon Oct 31, 2011 10:26 am ] |
| Post subject: | Re: GDSD 35 3 Blade RPM's? |
| Author: | Gigafowl [ Mon Oct 31, 2011 12:27 pm ] |
| Post subject: | Re: GDSD 35 3 Blade RPM's? |
IF - you decide to bend them and many guys do especially if your gonna run the 3 blade - go in small 1/8" or less increments and 1/4" is about the most I would recommend.... Don't do it if you got a used 3 blade - used 3 blades have the most lift of all - or a reworked 3 blade is even worse.... But only do it if you are having trouble with a brand new 3 blade from GD.... FYI - the 2 blade has almost no lifting issues and throws a huge rooster tail in comparison to the 3 blade - you may wanna consider staying with the 2 blade.... |
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| Author: | JIMMY W [ Mon Oct 31, 2011 12:52 pm ] |
| Post subject: | Re: GDSD 35 3 Blade RPM's? |
This damn GatorTail throws a high ass rooster tail! |
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| Author: | meterman3 [ Mon Oct 31, 2011 7:21 pm ] |
| Post subject: | Re: GDSD 35 3 Blade RPM's? |
| Author: | bbb [ Mon Oct 31, 2011 8:05 pm ] |
| Post subject: | GDSD 35 3 Blade RPM's? |
| Author: | Duck Slayer 27 [ Wed Nov 02, 2011 9:25 pm ] |
| Post subject: | Re: GDSD 35 3 Blade RPM's? |
Do yalls GDSD's bog down when they get in thick hard mud? mine will only turn like 600-800 rpm's when it gets in thick mud and it pisses me off. that normal? |
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| Author: | wal1809 [ Thu Nov 10, 2011 7:46 am ] |
| Post subject: | Re: GDSD 35 3 Blade RPM's? |
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