MudmotorTalk.com http://www.mudmotortalk.com/mmt_v2/
RPM and Speed question http://www.mudmotortalk.com/mmt_v2/viewtopic.php?f=6&t=20609	Page 1 of 1

---

Author:	TEXLADUCKSLAYER [ Wed Aug 03, 2011 1:31 pm ]
Post subject:	RPM and Speed question
I have a light modded 23lt and I am turning 3850 in water with a 9x7 running 22mph and turning a 9x6 4000 running 22mph....any ideas???? Am I topped out or can I get more?

---

Author:	kibb [ Wed Aug 03, 2011 3:10 pm ]
Post subject:	RPM and Speed question
With those props I doubt you will get anything higher. You are probably running about 20-21 at 3600 and then that. I think you are at the top of the curve right now.

---

Author:	TEXLADUCKSLAYER [ Wed Aug 03, 2011 8:00 pm ]
Post subject:	Re: RPM and Speed question
So would getting someone such as Hopkins to tune up a prop to say 9x8 or 9x9 help any?

---

Author:	kibb [ Wed Aug 03, 2011 8:03 pm ]
Post subject:	RPM and Speed question
Might wanna wait and see if someone with a similar motor chimes in.

---

Author:	TEXLADUCKSLAYER [ Wed Aug 03, 2011 8:14 pm ]
Post subject:	Re: RPM and Speed question
Ok man, appreciate it. I did go run it again today and added some octane boost and got 3950 and bumped 23 a couple times with 2 of us in the boat...only reason I tried that was I was having a detonation/preignition problem and was trying the octane boost for that problem.

---

Author:	Woodiebuster [ Wed Aug 03, 2011 8:23 pm ]
Post subject:	Re: RPM and Speed question
What size boat is it on? Without doing more mods it sounds like you are about peaked out. What have you done to it?

---

Author:	TEXLADUCKSLAYER [ Wed Aug 03, 2011 8:31 pm ]
Post subject:	Re: RPM and Speed question
Woodie, it is on a 1652 riveted flat with frog spit on bottom. decked heads 15, bored 30 over, polished and 3 angle valve grind, 35 carb, twin exhaust, high flow s&b air filter.

---

Page 1 of 1	All times are UTC - 6 hours
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group http://www.phpbb.com/