175 opti proxs

[stokernick]

engine's running great but tach [Smart Craft] is wandering ALL OVER THE PLACE, NEVER GETTING AN ACTUAL READING. wtf??!!

[mragu]

stoker, not to derail the thread but what yr is the motor? did you ever dyno it or read about what the actual hp is on these motors? im considering going with a new one. thanks, mike

[XstreamVking]

Check your connections at the motor and at the dash....Are the info pages showing the diff pages? Can you scroll the menu? Ragu, New 175XS optis are said to have near 190hp at the prop. They do run good for a 175, several of my buds run them hard with no problems....On a 20' flats boat one guy I know is getting 5mpg with a real good prop. Prob be my next motor..

[mragu]

Solid motor mounts on 175xs?

[stokernick]

Solid motor mounts on 175xs?

never dynon'd but told190 hp, solid mounts, engine's 2009, 260 hr, runs strong, been told racing 200xs offshore is a 175 with reflashed ecu 240 hp! XVK, can scroll the pages only tach is wandering.

[hsbob]

do the other guages wander as well. if not the get some contact cleaner and plug unplug the plug several time at the tack. if all wander go back further.


what max speed??

[mragu]

never dynon'd but told190 hp, solid mounts, engine's 2009, 260 hr, runs strong, been told racing 200xs offshore is a 175 with reflashed ecu 240 hp! XVK, can scroll the pages only tach is wandering.

What kind of cost is involved with reflashing? I would assume you would lose the warranty.

[stokernick]

do the other guages wander as well. if not the get some contact cleaner and plug unplug the plug several time at the tack. if all wander go back further.


what max speed??

will try, best speed is 74 vs 92 with the 2.4 Bridgeport!! Price I paid for giving up 65HP, but fuel efficiency and 5 year warranty over ruled!!

[bigboy]

I wonder if anyone went from a 200 carb to the 175 pro xs? If it would perform the same it would be a great motor for my HST. Got my hst to 84mph but has lots of more potential. Should do 90.

Do you have lwp or standard case?

[XstreamVking]

Friend with a 20' flats boat went from a 200 2.5 to a 175 XS and didn't lose more than a couple of mph. The XS 175 is a good mid size performance motor. Any 2.5 lower you want on it works.

[stokernick]

I wonder if anyone went from a 200 carb to the 175 pro xs? If it would perform the same it would be a great motor for my HST. Got my hst to 84mph but has lots of more potential. Should do 90.

Do you have lwp or standard case?

I'm running a 1.87 Sportmaster.

[bigboy]

How much RPM do they run?

[stokernick]

How much RPM do they run?

5800

[150aintenuff]

its either a tach grounding problem with the analog side OR its a cable connection issue

[150aintenuff]

also the pro xs 175 is 185-192 HP as allowed by EPA the people around here taking 200 carb motors off of 42 mph boats see within 1 mph or less difference on a jet application or 3 mph on a prop application... about what one would expect losing 200 RPM prop for prop from 5900 to 5700ish.. ive seen 1 boat run BIG numbers but set up was IDEAL and that motor was VERY VERY strong (stronger than his 200 we took off) great motor and a few things will make it the GEN 1 200XS or 210 hp.. to do 240 you need the big 5 petal 240/2.5XS front half and different heads and port work and 6800 RPM limiter