New RT 188 w/ 115 pro xs Command thrust

[tcesni]

Early 2018 RT188(July build) with the Merc 115CT and single console. Came factory rigged with the 21Tempest plus. Jumps on plane almost instantly, hits right at 6250RPM, 51.7Mph. awesome throttle response! 6300RPM is the motor rating, as my dealer pointed this out as well. Love the rig!

Is that speed via GPS? That is excellent.

[Tim Kelly]

Prop slip of 1%. Outstanding.

[buzz70b]

Received my 21 Tempest plus replacement prop and returned the 24 Tempest. Definietly an improvevement in the holeshot and gained 1 to 2 MPH. RPM now is around 6100 instead of 5400. Around 47 MPH GPS with 2 people and full tank of gas. I have the plugs in but not solid. Wondering if I should try the solid plugs.

[jrbdad]

Getting my 21p next week.

[drtyrat30]

So has anyone that has the 21p tempest on the 115 ProXS CT been seeing high engine temps or excessive fuel consumption? Due to the high reving in the 6300rpm range

[Chainslinger1959]

So has anyone that has the 21p tempest on the 115 ProXS CT been seeing high engine temps or excessive fuel consumption? Due to the high reving in the 6300rpm range

Mine runs 3rd hole no problems yet

[jrbdad]

Took mine out yesterday for quick run with new 21p tempest. Pops out of water nicely. With the family ( wife, 2 kids and myself), full of gas and gear it ran 46.5mph/gps.
Usually runs about 45 With all of us. Rev's higher and sounds pretty darn good when she's wound out!

Also feels better in turns to me.

[jbrew73]

Took mine out yesterday for quick run with new 21p tempest. Pops out of water nicely. With the family ( wife, 2 kids and myself), full of gas and gear it ran 46.5mph/gps.
Usually runs about 45 With all of us. Rev's higher and sounds pretty darn good when she's wound out!

Also feels better in turns to me.

can you elaborate on the steering/turns? my rt188 115 ct is my first boat and i'm not too impressed with the steering but i really have nothing to compare it to so i'm curious to hear what improvements you are feeling.

[jrbdad]

Didn't seem to cavitate in turns like it did with 24p. Felt more solid if you will. They are basically flat bottom boats, so they aren't going to maneuver like race cars.

[drtyrat30]

Didn't seem to cavitate in turns like it did with 24p. Felt more solid if you will. They are basically flat bottom boats, so they aren't going to maneuver like race cars.

Did you notice more fuel burn running the higher RPM's. When i did the change to a 21P it seems i'm burning a lot more fuel.

[boatinspector]

2019 188 115 ct 21 p tempest 50 mph gps

[texoma]

I really screwed the pooch on this one. Should have been its own thread. Could the moderator fix this for me. Good Lord I can't figure out how to delete this.

[Surferboy120]

2019 188 115 ct 21 p tempest 50 mph gps

What plug setup are you running on this prop?

[Crankinh20]

can you elaborate on the steering/turns? my rt188 115 ct is my first boat and i'm not too impressed with the steering but i really have nothing to compare it to so i'm curious to hear what improvements you are feeling.

put solid pvs plugs in tempest prop you will be amazed handles and turns like it’s on rails. No cavitation what so ever.

[Crankinh20]

Anybody ever try a tempest 23 pitch or 22 prop? If so how does it do?

[Surferboy120]

put solid pvs plugs in tempest prop you will be amazed handles and turns like it’s on rails. No cavitation what so ever.

I will be trying this to see. Thanks for the insight.