Turbo 20B powered speed boat.

[Eric]

http://myspacetv.com/index.cfm?fuseaction=vids.individual&videoid=23007294


Boat specs:
- Hull - Kevlar 1850 bullet, Bravo 1 XR leg
- Engine – X-Treme Rotaries 1962cc 20B (3 rotor) rotary engine, bridge ported, turbocharged, fuel injected, NRS Ceramic Power Seals
- Horsepower – 800hp 9500rpm 615 ft/lbs torque
- Speed – max 120mph 9650rpm (top speed is now 142 mph)
- Tuning – by Anthony Rodrigues, Maztech of Melbourne
- Turbo – Garret GT42 1000hp
- Intercooler – PWR barrel water to air

UPDATE Aug 30 2006 - The engine has a total of 28 hrs on it with 22 of those hours at full boost and WOT. Top speed is now 142 mph.

[myshtern]

Very cool but must be terrifying in a boat. A rogue wave could probably do some serious damage at that speed

[2genCRX]

damn, 22/28 hours of full boost at WOT

[Eric]

damn, 22/28 hours of full boost at WOT

My thoughts exactly, a lot of people are under the impression that a turbo rotary is a time bomb but, i think this speaks to the reliability of a well built forced induction rotary. Some reliability issues will be present with a turbo rotary but, that goes for any turbo motor. If you maintain it well and respect the motors limits, they will treat you right.

[guessinthe2000]

crazy stuff

[myshtern]

My thoughts exactly, a lot of people are under the impression that a turbo rotary is a time bomb but, i think this speaks to the reliability of a well built forced induction rotary. Some reliability issues will be present with a turbo rotary but, that goes for any turbo motor. If you maintain it well and respect the motors limits, they will treat you right.
I dont think it says anything about the reliability of rotary engines

[Eric]

Nice rebuttal, want to give it another go?

[myshtern]

Ask Rmcdaniels about his experience with rotary engines. He was rebuilding his every 15,000 miles. Some 4-cycle engines are tested at redline for a full month. 22 hours really doesnt show you the reliability of a rotary engine.

[Evil_SpeedRacer]

Triple rotor FTW!!!

I don't expect it to last very long with that turbo and those conditions, but I am curious to know about the temps the engine is running at in a boat. If it was being kept cool enough it may last a bit longer than most...

[Eric]

Ask Rmcdaniels about his experience with rotary engines. He was rebuilding his every 15,000 miles. Some 4-cycle engines are tested at redline for a full month. 22 hours really doesnt show you the reliability of a rotary engine.

Thank you, i wasn't trying to be a dick but the last reply you made wasn't exactly insightful. I've owned a rotary, and was spared the horror stories of constant rebuilds. Then again, i was only making ~400 to the wheels on a rebuilt/ mildly built 13B Turbo II motor that was single T04Z swapped and, it wasn't raced that often. In roughly 80k miles the only part i replaced was a clutch, that was up to the point that i sold it. I still say a well built and properly maintained rotary can last a good while.


/rant

[myshtern]

Thank you, i wasn't trying to be a dick but the last reply you made wasn't exactly insightful. I've owned a rotary, and was spared the horror stories of constant rebuilds. Then again, i was only making ~400 to the wheels on a rebuilt/ mildly built 13B Turbo II motor that was single T04Z swapped and, it wasn't raced that often. In roughly 80k miles the only part i replaced was a clutch, that was up to the point that i sold it. I still say a well built and properly maintained rotary can last a good while.
/rant
Sure, I'm sure there are plenty that have had good success. In comparison to a 4-stroke engine, the rotary isnt as reliable. Otherwise we'd all be using them by now.