Hope all that hard work pays off as its not an easy job doing the rotation change.
How have the SCS crash boxes been over the years you have been running them have they been reliable have you ever had to rebuild them?

On another note did you see Low Attitudes kilo run at LOTO they mixed methanol with there main fuel and used a nitromethane shot through the compressor wash god knows what the EGTs were like but the exhaust gases burned the paint off the hatches.

Sure is a cool looking boat;

the SCS s zero drag crash boxes are amazing! There simple design is most likely the reason I have never had any issues. I think i have split them open
a couple times over the years just to inspect. They hold a 1/2 qt of oil.
Low altitude is one nice boat i had the opportunity to crawl all over it and take measurements of it. (thanks Adam!)
I think Shannon the new owner is trying to get more outta her.
I have tried various fuels through the years...
Diesel, home heating oil and such But nothing burns cleaner and produces better consistent starts then Kerosene or of course Jet A!
Diesel or even off road fuels will coak up the start fuel nozzles leading to huge smokey starts that bellows everyone around you like a smoke bomb!
People will run in all directions.
I use a methanol spray bar directly into the air intake for compressor wash. Its Autozone washer fluid!!! Yes washer fluid. My compressor inspection shows
nice clean rotor blades and nozzles.
When i hit the meth injection pyros drop almost three hundred degrees and the engine feels and pulls like Arnold Schwarzenegger on steroids.

I was told that a water meth shot gives around 200 extra hp per side on a T53 due mainly to the cooling efficiency of the methanol I have used water meth injection on many high hp supercharged applications in cars to keep the intake temperatures low and keep detonation at bay.
I have never played with nitromethane but I would imagine the benefit again is to increase volumetric efficiency and cooling but I never saw it sprayed into a turbine before not that I need to spray my motors as I am more than happy with 1850hp per side.

Going onto compressor wash I noticed my motors have a tap fitted to the bleed valve actuators I remember talking to a guy about the wash procedure and don't remember if this tap is to prevent the water/meth solution from getting into the actuator during the wash procedure or if its to keep the bleed valve open or closed during the wash cycle.
Any thoughts?

Jay, you are grouping 4 different things together and only one of the processes requires manually closing the bleed band valve that you pictured above. I’ll try to explain.

1. In the beginning Arruda put the spray nozzles in the intake to do an online wash with water while running in salt environments and it offered a little cooling.
2. Adding meth to that mix dramatically increases cooling ability.
3. An online wash at the dock with engine running and a 4-1 mixture of Zok 27 compressor wash/fresh water at about 2.5 gallons a minute sprayed into the intake.
4. Last is the most effective. It’s an offline wash with 4-1 zok 27 mixture at 2.5 gallons a minute. First you manually close those bleed band valves. Next turn off everything on engine breaker panel except the top breaker which will allow you to motor the engine with no fuel. Have somebody start motoring the engine while simultaneously dumping the Zok mixture into the intake. DO NOT motor for more than 35 seconds and if you have to motor twice to finish the 2.5 gallons, then wait 3 minutes in between motoring. Once you’ve done that, fire the engine up to dry it out.

Thanks, Adam that's great advice, I want to keep the engines in tip-top condition and keep on top of all the maintenance and do the washes correctly and your post has answered everything I need to know about the wash procedure.
Much appreciated. J
By the way, did you get yourself another turbine boat?

Yes, I have Tronds 50, the old aqua doll.

Any updates I want to see this bad boy stretching its legs, hopefully, things will be better now the drives are switched.

He did all this work but will still just cruise around at 100 and never see what it will do. I think he’s loosing his ambition in his old age. Next stop is a Searay.....