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#11942286 - 11/19/16 08:32 PM Repowering my 18.4 ' Champion With a Mercury ?
Riotex Offline

Registered: 03/10/06
Posts: 442
Loc: San Antonio , Tx.
I value the knowledge on this forum that i've been a part of for many years. So I ask now for more knowledge before I make a decision. I have a 18.4 ' Champion Bass Boat that has provided many years of performance powered by an old 150 hp XP Evinrude engine ! Its time for change and this old engine needs to be laid to rest ! My Dad' who passed years ago' always ran Mercury engines and loved them. As a kid- I also ran these engines as he taught me boating etc. - To get to the point- I'm ready to re-power my Champion with a Mercury engine but needed some advice to these simple questions. #1 Mercury Pro XS ? #2 Mercury Optimax ? #3 2 Stroke vs 4 Stroke.? Any advice and recommendations are appreciated. PRO And Cons will be appreciated as well . Thanks Rio
My stringer is getting there!!

#11942336 - 11/19/16 09:10 PM Re: Repowering my 18.4 ' Champion With a Mercury ? [Re: Riotex]
NITRO Z8 Offline
Pro Angler

Registered: 07/06/07
Posts: 555
Loc: fortworth tx, tarrant co.
I have an mercury pro xs and really happy with it. Had one on my other boat also and never had any problem either but I did a service every year as I do now. I change my water pump and lower unit and filters every year and what ever else I need to do. Plugs every 2 years.

#11944619 - 11/21/16 11:08 AM Re: Repowering my 18.4 ' Champion With a Mercury ? [Re: Riotex]
T-racer Offline
Pro Angler

Registered: 08/24/16
Posts: 500
Loc: Melissa/Grand Prairie, Tx
Well, others may have some better knowledge than I do, but here's what I know off the top of my head: I believe the Pro XS is the "high performance" model, I think I heard they have less warranty and drink more gas than the optimax, but that they're really great fast motors. The optimax on the other hand had more warranty and better gas economy but just a hair less performance. Still very great motor though. Personally if I was repowering I'd probably just stick with optimax. Also I believe 2 stroke engines are lighter and more of the choice for bass boats over 4 strokes? That's my 2 cents
Blazer 202 Pro V
Merc 2.5L ProMax

#11944740 - 11/21/16 12:54 PM Re: Repowering my 18.4 ' Champion With a Mercury ? [Re: Riotex]
steve@hydrodynamics Online   content
TFF Celebrity

Registered: 08/25/06
Posts: 6767
Loc: Quitman,Tx
pro xs and the xs(racing division) are the same engine. use the same fuel,etc. only difference is the limiter on a xs is higher than a pro xs. that being said.. they both make peak power at the same rpm. 6050

on your boat, get the PRO XS !!! it will do all you want.
also, id recommend the smart craft gauge kit as well.. it tells you everything in one neat little gauge pkg. well worth
the money!!

4 stroke??? yukola. (not a fan of the merc 4 strokes.. yet)

get an 8 inch plate and a pro xs, with smart craft... and let er rip!!!

#11945847 - 11/22/16 05:10 AM Re: Repowering my 18.4 ' Champion With a Mercury ? [Re: Riotex]
PaPa@fork Offline
Pro Angler

Registered: 04/25/16
Posts: 525
Loc: Lake Fork
Two stroke
If it was easy, everyone would do it

#11946548 - 11/22/16 12:49 PM Re: Repowering my 18.4 ' Champion With a Mercury ? [Re: Riotex]

Registered: 04/10/10
Posts: 119
Loc: Tx

#11954922 - 11/28/16 11:25 AM Re: Repowering my 18.4 ' Champion With a Mercury ? [Re: Riotex]
Transplant Online   sick
Pro Angler

Registered: 07/23/07
Posts: 941
Loc: Cedar City, Utah
I owned a 2001 Champion 181 with a Mercury 150EFI. Loved it!!
Fishing is not a matter of life or death,
it's much more important than that!
10 pounds 2 oz.(Pat Mayse)
10.88 lbs PB (Lake Fork)
Garmin Pro Staff

#11956984 - 11/29/16 02:31 PM Re: Repowering my 18.4 ' Champion With a Mercury ? [Re: Riotex]
gary purdy Online   content
TFF Guru

Registered: 05/24/03
Posts: 11158
Loc: Littlefield Tx & Lake A. H. US...
Just saw this: 2015 Mercury Optimax 200 hp 3 1/2 years warranty 361-790-3121 10,600
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

#11957217 - 11/29/16 04:20 PM Re: Repowering my 18.4 ' Champion With a Mercury ? [Re: Riotex]
texasbass1 Offline
TFF Celebrity

Registered: 02/12/05
Posts: 5558
Loc: The Colony, TX
Love my Merc 150 4 stroke.
Pat Leach

USAF MSgt Retired


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