Can I make my 9.9 Evinrude go faster?

chead98

Petty Officer 3rd Class
Joined
Sep 11, 2009
Messages
82
I'm just a little bored and want to go faster but can't afford a new, faster one. Is it possible or is it really worth it?

Thanks, Chris
 

bktheking

Vice Admiral
Joined
Jul 29, 2008
Messages
5,057
Re: Can I make my 9.9 Evinrude go faster?

I thought it didn't go at all, spun prop??? Did you solve it? Yes you can , it will cost you some coin to convert it to a 15hp.
 

chead98

Petty Officer 3rd Class
Joined
Sep 11, 2009
Messages
82
Re: Can I make my 9.9 Evinrude go faster?

I thought it didn't go at all, spun prop??? Did you solve it? Yes you can , it will cost you some coin to convert it to a 15hp.

LOL. Now I'm sounding like a liar..he No, sorry, I actually have 2, short shaft and a long shaft. Yes, the long shaft is another topic. (goes slow)

Thanks but that sounds like a lot of work for my short shaft. I was hoping there would be a quick fix, like adding some special octane (joke) Or a little carb work.

Thanks again
 

Rick.

Captain
Joined
Jul 30, 2006
Messages
3,740
Re: Can I make my 9.9 Evinrude go faster?

Twin them, and hold on tight. Rick.
 

bktheking

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Re: Can I make my 9.9 Evinrude go faster?

Oh I see, that explains it. There are differences between the 9.9 such as exhaust and carb but they cost money. Heck anything you will do will cost $$$.
 

kbait

Commander
Joined
Nov 13, 2007
Messages
2,471
Re: Can I make my 9.9 Evinrude go faster?

I believe a '74-'76 is just a carb change and newer models have different exhaust tube/reed valve plate spacing..
 

14ftgrumman

Chief Petty Officer
Joined
Jul 19, 2008
Messages
416
Re: Can I make my 9.9 Evinrude go faster?

:D Put it on a smaller boat?:D
 

CBGale2

Lieutenant Junior Grade
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Apr 22, 2009
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Re: Can I make my 9.9 Evinrude go faster?

Rocket Fuel! :D
 

JB

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Re: Can I make my 9.9 Evinrude go faster?

Build yourself a dual carb, dual reed plate manifold (Homelite pyramid reed plates). Install a pair of Tillotson chainsaw carbs with 3/4" venturis and 50% larger area jets.

Convert the ignition to a maverick magneto so that you can advance timing about 40*. Set up the link 'n' synch so that you can turn her about 10Krpm and put a 4" prop on her.

Then mix up some fuel: 1 pint of Fox Hi Nitro glo plug fuel to 1 gallon of methanol.

Will go like stink and scream like a glo plug engine.

Rebuild after every 2 hours of operation, if it should last that long.
 

bktheking

Vice Admiral
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Re: Can I make my 9.9 Evinrude go faster?

Good Idea JB, I was thinking a 50 Shot of Nitrous would do it, for about 20 seconds or so.
 

1946Zephyr

Vice Admiral
Joined
Oct 21, 2008
Messages
5,556
Re: Can I make my 9.9 Evinrude go faster?

Build yourself a dual carb, dual reed plate manifold (Homelite pyramid reed plates). Install a pair of Tillotson chainsaw carbs with 3/4" venturis and 50% larger area jets.

Convert the ignition to a maverick magneto so that you can advance timing about 40*. Set up the link 'n' synch so that you can turn her about 10Krpm and put a 4" prop on her.

Then mix up some fuel: 1 pint of Fox Hi Nitro glo plug fuel to 1 gallon of methanol.

Will go like stink and scream like a glo plug engine.

Rebuild after every 2 hours of operation, if it should last that long.


Good one JB. This must be like one of those high output motors, like you see on the dragstrip. I luv it.:D:D:D
 

cajuncook1

Chief Petty Officer
Joined
Sep 3, 2009
Messages
559
Re: Can I make my 9.9 Evinrude go faster?

I'm just a little bored and want to go faster but can't afford a new, faster one. Is it possible or is it really worth it?

Thanks, Chris


Strap a ACME Rocket on top of the motor and light the fuse:D Put on a helmet and hold on to your britches. For guidance I'm sure you can pull up a Roadrunner/Wile E Coyote cartoon on youtube :p

LOL Sorry couldn't help myself

cajuncook1
 

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chead98

Petty Officer 3rd Class
Joined
Sep 11, 2009
Messages
82
Re: Can I make my 9.9 Evinrude go faster?

Build yourself a dual carb, dual reed plate manifold (Homelite pyramid reed plates). Install a pair of Tillotson chainsaw carbs with 3/4" venturis and 50% larger area jets.

Convert the ignition to a maverick magneto so that you can advance timing about 40*. Set up the link 'n' synch so that you can turn her about 10Krpm and put a 4" prop on her.

Then mix up some fuel: 1 pint of Fox Hi Nitro glo plug fuel to 1 gallon of methanol.

Will go like stink and scream like a glo plug engine.

Rebuild after every 2 hours of operation, if it should last that long.

Well you know, that's 2 hrs of fun fun fun, so I may give it a try. lol
 

CATransplant

Admiral
Joined
Feb 26, 2005
Messages
6,319
Re: Can I make my 9.9 Evinrude go faster?

Build yourself a dual carb, dual reed plate manifold (Homelite pyramid reed plates). Install a pair of Tillotson chainsaw carbs with 3/4" venturis and 50% larger area jets.

Convert the ignition to a maverick magneto so that you can advance timing about 40*. Set up the link 'n' synch so that you can turn her about 10Krpm and put a 4" prop on her.

Then mix up some fuel: 1 pint of Fox Hi Nitro glo plug fuel to 1 gallon of methanol.

Will go like stink and scream like a glo plug engine.

Rebuild after every 2 hours of operation, if it should last that long.

Once upon a time, I had a Benelli 50cc cafe racer bike. Road racing seat, homemade expansion chamber exhaust, and even clip-on bars. It was pretty fast. It was always hard to start, though. One time, I had the bright idea of putting a quart of glo-plug fuel in the tank and no premix fuel.

The thing ran like stink, but I guess that old Benelli engine wasn't designed for 10,000 RPM. It ended up in a supermarket dumpster after that test ride. Never mind, though. I only had about $75 in the thing.
 

mikesea

Lieutenant Commander
Joined
Oct 1, 2006
Messages
1,830
Re: Can I make my 9.9 Evinrude go faster?

RUT RO, someone needs his specticles.Its a 9.9
 

chead98

Petty Officer 3rd Class
Joined
Sep 11, 2009
Messages
82
Re: Can I make my 9.9 Evinrude go faster?

you can lose weight.

That would mean lose muscle and I can't be doing that. lol

8522_278734355157_888950157_8792890_448964_n.jpg
 

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CBGale2

Lieutenant Junior Grade
Joined
Apr 22, 2009
Messages
1,026
Re: Can I make my 9.9 Evinrude go faster?

You could have a leg taken off and replace it with a nice lightweight balsa peg leg, that should shave atleast 30-40lbs. Maybe get an eye patch too. :D
 
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