lowering motor for more rpm?

[dchance]

us it possible to lower a motor and gain rpms? I am low on rpms and prop to pad was high compared to other setups. could it be that I'm not getting lift? couldlowering regain lift and increase rpms?

[mdtritn21]

usually lowering the motor will loose rpm's but it might gain you some lift if the prop hooks up better.

[DMart1]

Agree with mdtritn21. But yes, could be a lift issue. What is your boat/motor and PTP setup?

[dchance]

2010 nitro z7 200 pro xs
I was at 1.75 below. 6inch plate. 25 tempest.

my issues arose since I blew my old 2010 200 and now have a new one but am only turning 5400 rpms and cant figure why

[DMart1]

Wow, you are pretty high for that boat. I would try lowering to 3" or 3.5" and start there. The tempest is tuneable, you can cup it to add lift if you need but I would start with corrected motor height first.

[dchance]

Yeah I know. I never did check prop to pad when they put the new one on. I lowered it to 3 inches and will try it. not too optimistic as it doesn't make much sense to lower for mor R's but hopeful

[lpugh]

Derek are you just trolling or do you want to really solve your issue, You have post all over these forums about this and none of them have enough information for anyone to be of any real help to you.
My advise is to start over with only two threads, one in the boat section and one in the motor sections that would apply in your case.
I would also recommend reading the frequently asked questions at the top of all these forums, lots of good info there

Provide all the history of what has transpired
Provide the serial numbers of both motors
What you have done and the results
Boat model
Motor
Gear ratio
Load carried
elevation of operation
Primary use of boat
Your prioritys (hole shot or top speed)

Current setup and prop description
Wot speed and rpm measured with GPS and Smartcraft or digital tach
P to P height
Setback
Just trying to help you out as others will as well

[dchance]

Derek are you just trolling or do you want to really solve your issue, You have post all over these forums about this and none of them have enough information for anyone to be of any real help to you.
My advise is to start over with only two threads, one in the boat section and one in the motor sections that would apply in your case.
I would also recommend reading the frequently asked questions at the top of all these forums, lots of good info there

Provide all the history of what has transpired
Provide the serial numbers of both motors
What you have done and the results
Boat model
Motor
Gear ratio
Load carried
elevation of operation
Primary use of boat
Your prioritys (hole shot or top speed)

Current setup and prop description
Wot speed and rpm measured with GPS and Smartcraft or digital tach
P to P height
Setback
Just trying to help you out as others will as well

Leon I've been a part of these boards for a very long time. I know how they work.
I have asked several different questions pertaining to my issue. Some have been answered others have not. Not all of us live on the water and are able to test out all things on a daily basis. I am gathering as much information as I can in order to make my next time on the water worthwhile and get as many answers as I can.
I have received a ton of great advice and have had too many questions answered to count in the past several years. If I have a question, I ask. If I have information that may help someone, I answer. pretty simple. I've posted information several times. 3 posts above your previous one gives my setup and a brief history.

[RyanJ]

Why do so many want to throw out the troll card anymore??? Let’s get past the troll crap on here geesh.

[pmgoffjr]

Proper boat setup is simple. Not quick and not easy, but it is simple.
The ONLY way you find out what's best on YOUR boat is take it too the lake, and find out what too high is, and just as important what too low is. What works on mine is not at all what's going to work on yours.
Too far...bring it back.
If your prop is wrong, that's how you'll know. If it needs tweaking, that's how you'll know. But until you spend the two hours necessary to do it correctly, everything else that follows is nothing more than a guess.

[DMart1]

Yeah I know. I never did check prop to pad when they put the new one on. I lowered it to 3 inches and will try it. not too optimistic as it doesn't make much sense to lower for mor R's but hopeful

Make sure you are measuring correctly. Sounds good, let us know your new results.

[lpugh]

Why do so many want to throw out the troll card anymore??? Let’s get past the troll crap on here geesh.

Ryan he has at least 6 different posts on this subject and not one them has any useful info that would help us help him so I think that was a fair question, I would be glad to help him if he provided the info needed and keeps it all in one thread

[dchance]

Ryan he has at least 6 different posts on this subject and not one them has any useful info that would help us help him so I think that was a fair question, I would be glad to help him if he provided the info needed and keeps it all in one thread

Didn't figure I needed every single detail of info on my setup, rig, serial numbers to answer the question posted. "Is it possible to raise rpm's by lowering the motor?" To me this doesn't make sense, but thought I'd ask those more knowledgeable. I was not asking for an overall solution to my problem, just another means of gathering information. Simple questions can have simple answers. Geesh.

[pmgoffjr]

NO

[Dubee]

Didn't figure I needed every single detail of info on my setup, rig, serial numbers to answer the question posted. "Is it possible to raise rpm's by lowering the motor?" To me this doesn't make sense, but thought I'd ask those more knowledgeable. I was not asking for an overall solution to my problem, just another means of gathering information. Simple questions can have simple answers. Geesh.

No, you do not need all that info to get an answer to your question. Some people just want to act like they know everything.

[Fatshaft Merc]

2010 nitro z7 200 pro xs
I was at 1.75 below. 6inch plate. 25 tempest.

my issues arose since I blew my old 2010 200 and now have a new one but am only turning 5400 rpms and cant figure why

Is your new motor broken in yet?

[mdtritn21]

No one asked but is that a new to you 200 opti max and not a new 200 4 stroke. If it's a 200 opti max it could be a fouled plug dropping you one cylinder.

[dchance]

Is your new motor broken in yet?

13 hours on it

[dchance]

No one asked but is that a new to you 200 opti max and not a new 200 4 stroke. If it's a 200 opti max it could be a fouled plug dropping you one cylinder.

not a 4 stroke. 2 stroke proxs

[Fatshaft Merc]

13 hours on it

You should really let the motor get broke in before you start trying to play with the set up. The motor will loosen up and gain power as it breaks in.