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Jan 23rd, 2013
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Getting more HP from a Suzuki 4 stroke #12432095
09/19/17 01:35 AM
09/19/17 01:35 AM
Joined: Jan 2016
Posts: 115
Maypearl, TX
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Dad2rlkm Offline OP
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Maypearl, TX
Do any of you know any performance upgrades that can be done on a Suzuki 175 hp 4-stroke? The motor is strong and runs great but would like to get a little bit more out of it without damaging it. I have seen videos about taking "flow restrictors" out of honda 4 strokes and such but haven't seen anything on the Suzukis.

Re: Getting more HP from a Suzuki 4 stroke [Re: Dad2rlkm] #12432383
09/19/17 12:00 PM
09/19/17 12:00 PM
Joined: Aug 2011
Posts: 2,837
Austin, Tx
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Bob Landry Offline
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If it runs good and is reliable, what's the point of trying to get "a little more out of it"?


2015 Seaark 1872 MV CC Etec-90
Two Helix 12 CHIRP SI's, , MinnKota Riptide ST80/i-pilot Link, Bob's Hydraulic
2018 Robalo R180 CC, Yamaha 115

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Re: Getting more HP from a Suzuki 4 stroke [Re: Dad2rlkm] #12437290
09/22/17 06:57 PM
09/22/17 06:57 PM
Joined: Jan 2016
Posts: 115
Maypearl, TX
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Dad2rlkm Offline OP
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A fair question. The primary reason is to reduce my run time from marina to fishing spot. There is a particular place in south Louisiana that I fish often that the closest boat ramp is 15 miles from where I enter the saltwater marsh to fish.

Re: Getting more HP from a Suzuki 4 stroke [Re: Dad2rlkm] #12440471
09/25/17 12:24 PM
09/25/17 12:24 PM
Joined: Jun 2014
Posts: 333
Eagle Mountain Lake
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BODA Offline
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Eagle Mountain Lake
what kinda boat?

Re: Getting more HP from a Suzuki 4 stroke [Re: Dad2rlkm] #12442321
09/26/17 12:21 PM
09/26/17 12:21 PM
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Posts: 333
Eagle Mountain Lake
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BODA Offline
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Eagle Mountain Lake
I dont know if I would try and get more HP out of your motor as much as focus on the way is is set up. Things like motor height, weight distribution, prop, etc...maybe look into a nosecone from Bob's, that is all I would do to my motor

Re: Getting more HP from a Suzuki 4 stroke [Re: Dad2rlkm] #12442545
09/26/17 02:39 PM
09/26/17 02:39 PM
Joined: Nov 2002
Posts: 3,706
Yantis, TX
Gamblinman Online content
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Yantis, TX
Due to emissions regulations. Manufacturers are tuning these engines as lean as possible. Making changes and/or adjustments can be risky business. Maximize your boats effeciency first.

Re: Getting more HP from a Suzuki 4 stroke [Re: Dad2rlkm] #12446139
09/29/17 02:37 AM
09/29/17 02:37 AM
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Brownsboro, Tx
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Dawson Hefner Offline
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Nothing that will make a big difference in your time unless your setup is off. Make sure it's the right prop, turning correct rpm, motor set on right level etc.


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Re: Getting more HP from a Suzuki 4 stroke [Re: Dad2rlkm] #12446297
09/29/17 04:40 AM
09/29/17 04:40 AM
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Posts: 207
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JB in Ft Worth Offline
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I was working for a Hyundai dealer and as an experiment we took the fuel injectors from a 3.0 V6 and replaced the injectors in a 2.3 I4. It made a noticeable difference. Kind of an expensive experiment though (unless you already own the replacement parts). No idea if it would help or hurt your particular setup.

Re: Getting more HP from a Suzuki 4 stroke [Re: Dad2rlkm] #12446349
09/29/17 10:51 AM
09/29/17 10:51 AM
Joined: Apr 2017
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San Angelo
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Even if you were able to squeeze more power out of a 175 at most it would only be 10-15hp. That might net you 1-2mph at best. On a 15 mile run you may get there about 40 seconds sooner.

Re: Getting more HP from a Suzuki 4 stroke [Re: tmd11111] #12446439
09/29/17 12:48 PM
09/29/17 12:48 PM
Joined: Nov 2014
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Red Oak, Galveston, and Pagosa...
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Red Oak, Galveston, and Pagosa...
Originally Posted By: tmd11111
Even if you were able to squeeze more power out of a 175 at most it would only be 10-15hp. That might net you 1-2mph at best. On a 15 mile run you may get there about 40 seconds sooner.
this is my thought.

I'd think it wouldn't be worth the risk to the longevity of the motor for a few minutes of fishing time.


Eat. Sleep. Fish.
Re: Getting more HP from a Suzuki 4 stroke [Re: Dad2rlkm] #12447683
09/30/17 02:14 PM
09/30/17 02:14 PM
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Euless
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Muzzlebrake Offline
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Unless you are racing where tenths or hundredths of a second counts then why bother. If it ain't broke don't fix it. Now if you have an uncontrollable need for speed, which I can attest to, and plenty of money just go get one of them Merc racing 175 engines and hang it on the back of an Allison. 100mph no problem.


From Genesis: "And God promised men that good and obedient wives would be found in all corners of the earth."

Then He made the earth round...and He laughed and laughed and laughed!

Re: Getting more HP from a Suzuki 4 stroke [Re: Dad2rlkm] #12447697
09/30/17 02:29 PM
09/30/17 02:29 PM
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Posts: 11,491
Littlefield Tx & Lake A. H. US...
gary purdy Online content
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Littlefield Tx & Lake A. H. US...
You might investigate the interchangeability of the ECU off of a 200hp.


The world will not be destroyed by those who do evil, but by those who watch them without doing anything. Remember what He has done and remember that He is not done yet!-- GOD IS GOOD
Re: Getting more HP from a Suzuki 4 stroke [Re: Dad2rlkm] #12447698
09/30/17 02:30 PM
09/30/17 02:30 PM
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Marble Falls/Seadrift
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Pat Goff Online content
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"A little more"
That sir is a deep, dark bottomless hole. I've been down it a few times.
Go buy some new rods and go fishing.


Pat Goff
Marble Falls/Seadrift TX


Re: Getting more HP from a Suzuki 4 stroke [Re: Pat Goff] #12448541
10/01/17 11:56 AM
10/01/17 11:56 AM
Joined: May 2003
Posts: 11,491
Littlefield Tx & Lake A. H. US...
gary purdy Online content
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Littlefield Tx & Lake A. H. US...
Originally Posted By: Pat Goff
"A little more"
That sir is a deep, dark bottomless hole. I've been down it a few times.
Go buy some new rods and go fishing.

I agree but that`s not what he asked.


The world will not be destroyed by those who do evil, but by those who watch them without doing anything. Remember what He has done and remember that He is not done yet!-- GOD IS GOOD
Re: Getting more HP from a Suzuki 4 stroke [Re: gary purdy] #12448580
10/01/17 01:16 PM
10/01/17 01:16 PM
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Marble Falls/Seadrift
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Pat Goff Online content
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It’s exactly what he asked. Alittlemore ten horsepower, three miles an hour. Starts out innocently enough and a year later he’s hooked a nitrous bottle to it.

Crack has nothing to compare with speed on the water.


Pat Goff
Marble Falls/Seadrift TX


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