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NITROZ9 Profile
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I was just wondering.......


I know that my TP is not up to par as far as slip goes but I see where LiL is selling a 27" prop a9 I know it won't fit). It got me thinking.Would my pro turn a 27 or even 28 with a light load. I am turning the 26 right at the limiter. I know I would drop in WOT RPM but I was just wondering what you guys think would go on.Would it get on plane?

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Oct/9/2010, 5:17 pm Link to this post Email NITROZ9   PM NITROZ9
 
Jay Martin Profile
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Re: I was just wondering.......


Consider 200 rpm's on the average per pitch, plus or minus.

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www.jaymartinpropellers.com
Oct/10/2010, 1:43 am Link to this post Email Jay Martin   PM Jay Martin
 
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Re: I was just wondering.......


So I could probably turn a 27 but it would be pushin it.

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Oct/10/2010, 8:23 am Link to this post Email NITROZ9   PM NITROZ9
 
Bullet20dc Profile
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Re: I was just wondering.......


tried a 27 trophy and txp on the 929 w/225 and we could time the hole shot with a calandar
the top end was not that great either once we got it up on plane due to the loss of rpms.
  I like to keep the rpms at max for the motor and prop out to that in most cases. In my opinion keeping it up in the max end of the power band and hp range is healthier for your motor than the extra 1 mph you may see.
More fun too than luggin around at 5000rpms


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Charlie B
Bullet20dc / 250XS
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Oct/10/2010, 2:24 pm Link to this post Email Bullet20dc   PM Bullet20dc
 
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Re: I was just wondering.......


Right now Charlie I am busting 5900 at 71-72 MPH easily with just me.Like I posted before I have hit 73.9. Don't know what the R's were because of trying to keep the right side of the boat above the water. I figure it had to be getting close to limiter. That's why I was asking about a soft limiter in the other post.I can keep it trimmed down a little and at WOT it will chine like a B#%$# at 67-68 MPH, or I can trim it high and at WOT it will chine at 71-73 MPH. I am at 3-4 seconds on hole shot right now when it is just me and empty wells. I have never put more than 20 gallons of fuel in it most of the time 10 gallons is all I will put in. I try to run it low to be able to keep it fresh. Just trying to look at my chine problem at all angles. emoticon

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Oct/10/2010, 4:06 pm Link to this post Email NITROZ9   PM NITROZ9
 
Bullet20dc Profile
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Re: I was just wondering.......


fill the wells. it will help with the walkin
make sure the boat is balance left right while you're in it. Move stuff around to achieve balance. I know this is a must in a Bullet and Alley not sure it matters a whole lot with a heavier rig but it cant hurt.
  we tried making the 929 walk this weekend but no amount of trim or speed could i put to it to make it move from straight as an arrow.
its right around 2 below now with a 25 trophy, and a TM dual water inlet for tx load and hittin 70 at 5900. Im thinkin alone in that boat I can pop on my 26 trophy that Jay cleaned up for me and hit 72 but I believe thats all she has in her.
  Remember all kiddin aside these are HEAVY boats the 929 is 1949 lbs and the Z9 2100 lbs without motor and 50 gals of fuel. Thats askin a lot for a 225. even with the 250 pro xs maybe 74 75 tops The ad says 80 but we both know that aint happening. Maybe with a 300 SX

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Charlie B
Bullet20dc / 250XS
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Oct/10/2010, 4:46 pm Link to this post Email Bullet20dc   PM Bullet20dc
 
Jay Martin Profile
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Re: I was just wondering.......


I agree with Bullet on the 27p,I have always been told not to lug a Merc, they don't like it very much.

Your boat can't be no worse than an Ally to drive, or should I say learning to drive. Seat time is the best cure for chine waliking. I remember the first boat I had, it scared me to death but after 6 weeks I was running with the best of'em. Some people simply over trim, this will make the chine monster get even meaner... emoticon ...

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www.jaymartinpropellers.com
Oct/10/2010, 4:49 pm Link to this post Email Jay Martin   PM Jay Martin
 
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Re: I was just wondering.......


I know you guys are going to get tired of fullin with me but until then I'm going to use your expertise to help me make the best accessment of what I got goin.

Charlie, in 2008 the Z9 weighed 1,975#.I would say that I have a very light load compared to what most people call a TX load. I have 13 rods, 7-8 3700 plano's,maybe 30-40 bags of plastics,and the usual stuff like life vest, an oar,ect.Like I said before I have never had more than a half of tank of fuel in it.(30 gal.)The run that I hit 73.9 I was right at "E". I ran around 5-6 miles on "E" when I took it out. Today I put 5 gallons in it when I when to the lake and fished 2-3 hours runnin here and there but not hard.(30-50) Before I take it out I always like to do a "blow out" run if I do alot of idling. When I hit 67-68 today she started that stuff and I can't even begin to drive it.

Back to the weight thing.You said that with two of you and a tx load ,which I assume is probably a whole lot more than what I have, you are able to run 70 at 5900. You also probably had a lot more fuel than me also.
I know that the 225's are strong motors but it seems like that with 25 more HP and a lighter boat overall with a 26 I should be hitting 6,000 or better.

As for the 80 thing, I ain't looking for 80.....yet I am just looking for WOT and not having to work my arse off to get it.The way that you and everyone else are talking , I should quit gaining speed and should be running straight.

Now Jay,how would I know if I was over trimming? I really need to get a running picture of the Z so you could put your eye on it. I will kindof give you an idea of how much I am trimming.

My gauge is just like a fuel gauge.You have E , 1/4 , 1/2 , 3/4, F .When I tuck it for take off it is on E. I start trimming as soon as it starts to break over up to 1/4-3/8. It will run 67-69 at this point at 5900+.Again I quit looking at the R's when she starts walkin.The other day in the river I had it trimmed at 1/2 running along when I looked down I was on 70.something.Thats when I went WOT and at 73.4-9 she went nuts. I could have run 70/71 all day at this trim angle at 5800/5900 but as soon as I pin the hotfoot a few seconds later she goes nuts.
When it is on the trailer 5/8 is full trim. that's when it goes to trailer tilt. emoticon

Am I trimming to high? I can make a pretty good turn at this trim angle also and not lose bite. emoticon

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Oct/10/2010, 8:35 pm Link to this post Email NITROZ9   PM NITROZ9
 
Jay Martin Profile
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Re: I was just wondering.......


A pic would be great, Go by feel and learn the boat, then use the guage to reference that feel later.

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www.jaymartinpropellers.com
Oct/10/2010, 9:47 pm Link to this post Email Jay Martin   PM Jay Martin
 
Bullet20dc Profile
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Re: I was just wondering.......


The gauge is just a reference. depending on the how the sender is set up it could be off. But anyway go by the seat of your pants. You should be able to feel the boat jump on the pad. The steering will get lighter and there's that little pop or jump ya get when ya get up on it. While you're running if you watch thru the corner of your eye the spray will start to walk back to the rear of the boat as you trim up. When ya can't see it anymore you're getting close. This is a trick I tell guys just starting to drive Hi Perf rigs. When ya get to that point feel for it. You can tell when you're trimming to far. The rpms go up and the speed stops climbing. Then drop down a click to get the ass end up.
I know you prob know all this stuff already but maybe somebody following this thread didn't.
I still say if you're hitting 70-72 you're doing good and you can bust your butt getting that extra 2mph but it requires a lot more attention to the details and a lot more work to drive.

Last edited by Bullet20dc, Oct/11/2010, 6:08 am


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Charlie B
Bullet20dc / 250XS
Politically correct impaired

Oct/11/2010, 6:07 am Link to this post Email Bullet20dc   PM Bullet20dc
 


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