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Author Topic:   2002 13 sport motor hieght
sinjun posted 07-08-2004 07:36 PM ET (US)   Profile for sinjun   Send Email to sinjun  
i have 2002 13 sport with 40hp 2 stroke top speed is 34mph on gps.can i get more speed out of it if i raise the motor one hole higher.
Jarhead posted 07-09-2004 08:22 PM ET (US)     Profile for Jarhead  Send Email to Jarhead     
Hmmmm.

No one seems to want to tackle this one so I guess I'll give it a shot.

My 130 Sport is equipped with a 25hp 4s so I can't really address the 34 MPH top speed question. But to answer the "move it up a hole for added speed?" inquiry, I'd say that depends on where your engine is mounted now. If your cav. plate is 3/4"-1" above the keel at the transom you're probably at optimum height.

If you want to raise the engine and you don't know how, do a search. There's some great threads that detail that subject well.

Good luck. :)

Such posted 07-10-2004 01:51 PM ET (US)     Profile for Such  Send Email to Such     
Take a look at the propeller section of the reference section and put in the variables to the formulas offered, it might help you decide. I have a 2002 with 25hp 4S. I raised it up one hole to the middle hole. Although I didn't take a reading last year, it feels faster. Per the GPS this year with me at 185lb and fishing gear on flat water running against a slight current I get 27mph @ WOT 6,000rpms. This seems about right given my results versus the formulas in the reference section. Jarhead what do you get for top speed on yours?
Jarhead posted 07-10-2004 07:39 PM ET (US)     Profile for Jarhead  Send Email to Jarhead     
Such.

My '03 25hp 4s is mounted one hole up (middle) and pushes my '03 130 Sport loaded with 2 batteries, (not a light in weight) Minn-Kota RipTide 52lb thrust trolling motor, 48qt ice chest, 2 6gal fuel tanks, fishing gear and my 185lbs about 25-26 MPH @ 5800 RPM (GPS).

I did swap out the 11P stock prop with a 12P to bring down the RPM which was running about 6200 WOT. Doing that allowed me to cruise about 20 MPH at a lower (about 4600-4700) RPM compared to about 5000 RPM with the 11P prop. Gas mileage improved, hole shot suffered...

Sorry sinjun, hope this isn't toooo far off topic. :)

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