Sounds like your motor height is about an inch too high and your holeshot is lacking. Every boat will do this if the bow goes too high. Need to look at your holeshot issues.
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Sounds like your motor height is about an inch too high and your holeshot is lacking. Every boat will do this if the bow goes too high. Need to look at your holeshot issues.
I will take a side view picture tommorrow when it is not pouring out, unless it has a break in the rain in the next 10 minutes.
I REALLY appreciate all your advice from every one!!
For those who say the motor height is right, the how come when I accelrate out of the hole even fast out of the hole the water STILL goes above the cowling?! that just doesnt seem right.. so if I lower the jack plate, wouldnt it fix that issue?
1) that looks more like a set back plate than a jack plate, and it appears to be giving you negative trim, which you shouldn't need
2) take some more pics of the side of the motor/plate from farther away, it looks like the plate may be digging in the water at the bottom compounding your issue
3) the only adjustment I see is the motor to plate bolt holes, and those are not used on a jackplate, but are on a setback plate
Attachment 2286Attachment 2285Attachment 2287Here some pics...
Ok, about 1/2 the distance now....them are a bit too far away, but the other ones were too close. Need to see the plate and all, but not a close-up
Haha alright, Its pitch black out now but I will take a bunch of pics tommorrow in closer and with the cover off!
TRCM -
what is the advantage/disadvantage of lowering the motor 3 of those bolt holes down on the set back/"jack" plate? Doing that would get the motor to sit deeper in the water and also it would close a couple extra degrees so the trim down would be set under the boat more, which would ultimately make the boat motor not get as submersed and not have such a high "wheelie" during take off.. right?
WBL JL
I sent you a PM. I have the same boat and set up as you. If you want some pics of of my set up just let me know.
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Originally Posted by mxmike
Thanks alot! I would love some pics!
I will post more pictures tomorrow,
I replies to your PM
I believe your motor is too high, according to my handy-dandy sales guide the appropriate/suggested prop is a 13 3/4 X 25 Trophy. You should be in the 3" under pad range..... Some Nitros are hole shot pigs, but the 882 wasn't too bad.
I would not lower the motor more than 1 set of wholes, if you lower it one set you should be at around 3-1/4 below pad if your measurement were correct. If you lower the motor to much you may develop chine walking issues at higher speeds. You have gotten alot of different info, if i were you i would pay the most attention to the fella that has the same boat.Quote:
Originally Posted by WBL_JL
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Originally Posted by BeeNix
Thanks alot! I think that info along with some others and a lot of help with the guy with my same boat has helped figure I need to adjust my motor..
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Originally Posted by Gambler Bob Rourke
Thanks Gambler, I've been PM'ing with him and it appears my bolts are slightly different but not by to much so I think the 1 set of holes idea is basically correct.
Each set of holes should move you down 3/4" i own a Nitro 901 that is for sale, that also came with a jackplate that is not adjustable when originally purchased i am guessing yours is the same one, mine was a 10" Slidemaster setback plate, i now have a 10" manual Slidemaster on it. In case you are looking you can find used manual jackplates for 150-200 bucks in the jackplate for sale forum near the bottom of the main page.Quote:
Originally Posted by WBL_JL
I went through similar problems getting the 901 to run good except my engine was mounted to low, and the boat would chine walk very bad over 60 MPH, i got the manual jackplate and it was very easy to fine tune performance. The boat will now run 69 MPH with very little chine. Some of the gain in speed also had to do with going from a 2.5 liter EFI to 3 liter Pro XS same H.P. though.
I run I / O O / B & inboards. We NEVER have such touchy holeshots with inboards. Why ? The prop is UNDER THE HULL by a couple of feet.
As the prop is moved rearward, it becomes the DOMANANT controlling force of the boats bow angles as POWER IS APPLIED.
IT IS AS SIMPLE AS A CHILDS PLAYYARD SEE SAW.
Put a big adult on 1 end & a child on the other end and the kid has almost no control left. I can not understand the need or logic of a setback plate on a boat that is already sitting low in the water. Add in the tremendous amount of torque & thrust of big engines & the prop position becomes VERY CRITICAL.
May not need to be trimmewd under as far to get it on the pad. Try trimming it less and see how that goes.
I run a 96 Nitro NX882, mine has always done the same thing, never had a problem.
Also have a "whale tail" quick out the hole
Verify that your prop shaft is 3.5 inches below the pad. That is your starting point. Again any boat that raises the bow too much on holeshot will experience what your seeing. We need more information to help you diagnose your holeshot issue. RPMS at WOT, RPMS on holeshot. Any plugs in the prop?
Motor is too high. Lower it one hole or try a 24 Fury. That's what I run and it is a beast out of the hole. 3-4 seconds or less and Im on plane. 4-5 with two guys. The 23 tempest I had sucked. The 23's don't have the cupping that the 24 temps have. I ran a 24 temp and the 24 Fury is a much better prop on this boat. I also found the Fury likes more water and a lower motor. I was running around at 63 on GPS last weekend at about 5400rpms.
Thanks guys! I found another guy with the exact boat, set back plate, motor, prop etc.. Im going to adjust my motor to his set back plate specs and give that a shot, by doing that it will drop the motor slightly. If my order for a lifting hook gets here this weekend I should be able to adjust it and get it on the water and get some more specs on rpms etc. I am hoping with the exact adjustments as the same exact boat and setup my problem will be resolved.
Any tips for removing the motor with 2 guys and no lifting hook?
I dont want to put a jack under the skeg like someone had suggested since its aluminum and will more than likely break.