SX 192 Mods

[RookieJetBoater]

I like Option 3:

Option 3: ETLB wheel with tune. Target 8500 rpm. 58-60mph.
1. ETLB wheel. Will this work with stock tune? speed guess?
2. Tune of your choice. Maptuner sounds good. I can put it back to stock ECU when my 18yr old son is up with friends and also in the fall when temps are lower.
3. AFR gauge. You may have to add FPR if running lean. Will have to watch gauges, especially in colder weather or drastic elevation changes.
4. Repitch stock impeller or upgrade to Solas 13/17 160mm impeller and wear ring.

 

[SamCF]

I like Option 3:

Option 3: ETLB wheel with tune. Target 8500 rpm. 58-60mph.
1. ETLB wheel. Will this work with stock tune? speed guess?
2. Tune of your choice. Maptuner sounds good. I can put it back to stock ECU when my 18yr old son is up with friends and also in the fall when temps are lower.
3. AFR gauge. You may have to add FPR if running lean. Will have to watch gauges, especially in colder weather or drastic elevation changes.
4. Repitch stock impeller or upgrade to Solas 13/17 160mm impeller and wear ring.

I ran this wheel with the stock tune, but used a PowerShot to add fuel on the top end. It is not safe with stock fuel/ECU.

 

[4wheeldeal]

What is the main diffs between the c3 and ETLB wheel? I noticed you said stock ecu with c3 and not ETLB wheel?

Also any worries with the timing chain?

 

[SamCF]

What is the main diffs between the c3 and ETLB wheel? I noticed you said stock ecu with c3 and not ETLB wheel?

Also any worries with the timing chain?

I really don't have experience to compare these wheels. From what I read on Greenhulk, the C3 is the largest wheel you can safely run without a tune or adding fuel. I do know that the ETLB Wheel makes enough boost to hit the boost limiter which will reduce rpm to 7500. That in itself makes that wheel undesirable for running with the stock ECU.

I do have worries about the timing chain because 2015 was one of the more likely years to have that issue. I don't think modifications have played a part in that failure. Yamaha has made repairs to modded skis and also skis out of warranty with failed timing chains. It's one of the few things that they admitted was their fault and are taking responsibility to fix.

 

[4wheeldeal]

Gotcha thanks. Sounds like if your going to spend the money on mods there is no point just getting the c3 wheel unless its cheap.

So they are doing a warranty on the chain after the normal warranty is up? That's great! Any chance do you know if this is a zero clearance motor?

 

[swatski]

Gotcha thanks. Sounds like if your going to spend the money on mods there is no point just getting the c3 wheel unless its cheap.

So they are doing a warranty on the chain after the normal warranty is up? That's great! Any chance do you know if this is a zero clearance motor?

Yes it is an interference engine.

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[SamCF]

Quick video from this morning.

 

[4wheeldeal]

Quick video from this morning.

Gets up to 55 quick! I would be very happy with that setup.

 

[SamCF]

Gets up to 55 quick! I would be very happy with that setup.

I am very happy with it. Going to bend the impeller for 8300 rpm then leave it alone.

 

[swatski]

Quick video from this morning.

F$#@#$ amazing.

WOW.
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[haknslash]

Love it! You can really hear the power come on when you nail it WOT!

 

[SamCF]

Finished up a project that has been on my list for a long time. I've been collecting parts for a while, and finally found time to do the install.

From a 2015 FX Waverunner I used: Jet nozzle, trim ring, steering nozzle, brackets for bucket, and reverse bucket.

To control the trim nozzle I used a Lenco trim tab actuator.

I still need to install the control switch and water test, but here's a short video to get the wheels turning.

The waverunner reverse bucket looks like it will give much better direction control in Neutral and Reverse. Also the steering nozzle will probably reduce some of the low speed wanderings our boats are known for. I don't have fins now, so I hope it's manageable. I still have to clean up the trim bracket and change out some hardware to stainless steel. I had to use what I had laying around to cut out extra trips to town.

 

[DBamaC]

That’s freaking awesome.

 

[RiverRat]

That could be the most unbelievably awesome modification I've seen on a modern jet boat!

 

[SamCF]

I'm going to water test tomorrow. It trims up just a little above factory angle, but trims down much lower. I'm hoping it will reduce the jet wash for tubing and skiing. That's what I told the wife anyway.

 

[haknslash]

Finally someone did it!! Both the trim and the reverse bucket!! You are the freakin man @SamCF and so glad you share the journey of your boat! I can't wait to see the results once you water test it. I wonder if this can help with surfing too as it should knock down some of the jet wash.

@swatski check this out!

 

[SamCF]

Finally someone did it!! Both the trim and the reverse bucket!! You are the freakin man @SamCF and so glad you share the journey of your boat! I can't wait to see the results once you water test it. I wonder if this can help with surfing too as it should knock down some of the jet wash.

@swatski check this out!

We are going to try surfing tomorrow. Picked up some ballast bags and a "Happy Pill" board. Going to try a 540 bag under both back seats and 800 in the ski locker.

 

[swatski]

Finished up a project that has been on my list for a long time. I've been collecting parts for a while, and finally found time to do the install.

From a 2015 FX Waverunner I used: Jet nozzle, trim ring, steering nozzle, brackets for bucket, and reverse bucket.

To control the trim nozzle I used a Lenco trim tab actuator.

I still need to install the control switch and water test, but here's a short video to get the wheels turning.

The waverunner reverse bucket looks like it will give much better direction control in Neutral and Reverse. Also the steering nozzle will probably reduce some of the low speed wanderings our boats are known for. I don't have fins now, so I hope it's manageable. I still have to clean up the trim bracket and change out some hardware to stainless steel. I had to use what I had laying around to cut out extra trips to town.

Phenomenal!
Holy mackerel!!!!

BTW - The lateral buckets would also work on the twins
https://jetboaters.net/threads/video-test-results-cobra-jet-vs-jet-boat-pilot.16559/page-2#post-288812

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[SamCF]

The boat steering nozzles are huge gaping holes compared to the skis. I think that causes the wandering at low speeds. They also divert the reverse thrust mostly down which does a poor job of reversing and a worse job of turning. The ski setup should be much better at both. If not, I wasted a bunch of time and money. Rigging the steering controls and trim actuator was one of the most frustrating trial and error jobs I've done.

 

[skbishop90]

Well....????!! Water test yet? I've always wondered how trim would help/hurt these boats. Im eager to hear the difference.