MudmotorTalk.com
http://mudmotortalk.com/mmt_v2/

Back up and running
http://mudmotortalk.com/mmt_v2/viewtopic.php?f=3&t=18358		 Page 1 of 1
Author:  craig [ Sun May 08, 2011 8:51 am ]
Post subject:  Back up and running
I finally put it all back together and went for a a ride yesterday. This engine is probably one of the smoothest running stage 3 engines I've seen. I can turn the idle all the way down to 450-500 rpms with it still running smoothly. Top end speed seems to be about the same as before....I didn't have a GPS to clock it so I'm not real sure what i was running. As for bottom end...thats where this thing shines. I replaced the cheetah cam with the EVT 493f cam and now the hole shot on this thing is stupid! With the engine trimmed down it jumps on step like a regular outboard without bogging down...instead of needing to cavitate for 100 ft.

What I like most about this engine is that I have all this power and my compression is under 200 psi. Now I'm gonna advance the timing a little bit just to give the throttle a little extra crispness. :mrgreen:
Author:  Woodiebuster [ Sun May 08, 2011 9:08 am ]
Post subject:  Re: Back up and running
Put up some video of that low idle. :mrgreen:
Author:  OwenDickeson [ Sun May 08, 2011 10:30 am ]
Post subject:  Re: Back up and running
How fast you was running before?
Author:  dog walker [ Sun May 08, 2011 11:00 am ]
Post subject:  Re: Back up and running
Sounds good dic!
Author:  deltaduckmaster [ Sun May 08, 2011 11:09 am ]
Post subject:  Back up and running
Author:  craig [ Sun May 08, 2011 1:22 pm ]
Post subject:  Re: Back up and running
Author:  craig [ Sun May 08, 2011 2:31 pm ]
Post subject:  Re: Back up and running
Author:  lastchance [ Sun May 08, 2011 2:51 pm ]
Post subject:  Back up and running
Engine sounds awesome!!!
Author:  dpd [ Sun May 08, 2011 4:18 pm ]
Post subject:  Re: Back up and running
Engine does sound smooth. Question for you onthe mikuni. Do you have to warm up the engine for say about 3-5 minutes with the choke engaged before you run, or were you able to get her tuned where you can crank and run? I think I have mine tuned pretty well but I need to let it warm up for a few minutes or else it's temperamental.
Author:  deltaduckmaster [ Sun May 08, 2011 4:40 pm ]
Post subject:  Back up and running
I have never had go let it warm up or choke mine!!
Author:  craig [ Sun May 08, 2011 5:04 pm ]
Post subject:  Back up and running
Author:  deadbird8 [ Sun May 08, 2011 6:17 pm ]
Post subject:  Re: Back up and running
Author:  craig [ Sun May 08, 2011 6:36 pm ]
Post subject:  Back up and running
Author:  Pooh Bear [ Sun May 08, 2011 7:37 pm ]
Post subject:  Re: Back up and running
Congrats Bro.....
Author:  cb5331 [ Sun May 08, 2011 8:22 pm ]
Post subject:  Re: Back up and running
Congrats man. Glad you finally got some time to get that thing back together.
Author:  Robn1020 [ Sun May 08, 2011 8:36 pm ]
Post subject:  Re: Back up and running
Sounds good Craig. Damn nice speeds too. When you gonna come down and run wallisville? You can even bring your big headed step brother. :lol:
Author:  craig [ Sun May 08, 2011 8:44 pm ]
Post subject:  Re: Back up and running
Author:  caddobrook [ Sun May 08, 2011 8:53 pm ]
Post subject:  Re: Back up and running
Hey man if you don't mind would you post everything you have done to your motor.

I know you have tried some different things and just went back to stock on some things and am curious where you landed on everything.

Thanks.
Author:  craig [ Sun May 08, 2011 9:02 pm ]
Post subject:  Re: Back up and running
Author:  Woodiebuster [ Sun May 08, 2011 9:05 pm ]
Post subject:  Re: Back up and running
When do the valves start to float? :mrgreen:
Author:  craig [ Sun May 08, 2011 9:07 pm ]
Post subject:  Re: Back up and running
Author:  Robn1020 [ Sun May 08, 2011 9:12 pm ]
Post subject:  Re: Back up and running
Author:  craig [ Sun May 08, 2011 9:25 pm ]
Post subject:  Re: Back up and running
Correct.
Author:  fowl habbit [ Mon May 09, 2011 6:05 am ]
Post subject:  Re: Back up and running
Glad to hear your back up and running. I have to agree with ya on the 493f cam. I'm glad I called and asked ya about that when I was changing mine out. That cam is a monster on the low end
Author:  MaXXis85 [ Mon May 09, 2011 6:56 am ]
Post subject:  Re: Back up and running
What kinda RPM's you expect to turn on the top end? You plan on keeping them under 5k?
Author:  craig [ Mon May 09, 2011 7:05 am ]
Post subject:  Re: Back up and running
Author:  MaXXis85 [ Mon May 09, 2011 7:13 am ]
Post subject:  Re: Back up and running
Author:  cb5331 [ Sat Jul 09, 2011 1:06 pm ]
Post subject:  Re: Back up and running
Have you got to run this thing much? I was curious how hard you've been on those stock connecting rods and if they seem to be taking the high rpm's pretty well.

Also, are you not doing any port work on the heads?
Author:  craig [ Mon Jul 11, 2011 9:04 am ]
Post subject:  Re: Back up and running
Author:  cb5331 [ Mon Jul 11, 2011 9:46 am ]
Post subject:  Re: Back up and running
Any particular reason for not doing any port work?

Good deal on the rods!
Author:  craig [ Mon Jul 11, 2011 9:50 am ]
Post subject:  Re: Back up and running
Author:  cb5331 [ Mon Jul 11, 2011 10:01 am ]
Post subject:  Re: Back up and running
I thought that may be the reason.
Author:  craig [ Mon Jul 11, 2011 11:37 am ]
Post subject:  Back up and running
I'm not gonna just "grind" away at a set of heads, more than likely doing more harm than good. Some supposed performance guys around here market there heads as being "ported and polished" but have no f-ing idea if what they're doing is actually helping. But hey, at least they look pretty.
Author:  bayouboy [ Mon Jul 11, 2011 3:04 pm ]
Post subject:  Re: Back up and running
Congrats my boy, that thing is crazy smooth!
Author:  pokey79 [ Mon Jul 11, 2011 4:26 pm ]
Post subject:  Re: Back up and running
Trapper's in lockport might have a flow bench!!! He does alot of head work there!! 985-532-5655
Author:  cb5331 [ Mon Jul 11, 2011 4:59 pm ]
Post subject:  Re: Back up and running
Author:  drake1 [ Tue Jul 12, 2011 5:47 am ]
Post subject:  Re: Back up and running
Silkpower figured out his port and polish work by using a flowbench. That is also how we figured out the gen was not flowing as well as the Briggs on the exhaust side.
Page 1 of 1 All times are UTC - 6 hours
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group
http://www.phpbb.com/