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Messages - diesel_lv

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Arcade / Re: 1985 Youngblood TX-19
« on: October 04, 2022, 02:26:34 pm »
I know this is old, never saw an answer to the OP question. There was a site up called "youngbloodjetboats" that had all the history. It is no longer available unfortunately. I bought a 1984 TX19, it has a JBX HIN number on it, JBX's are Jimmy Johnson built TX19's. There have been over 15 companies who have made TX19's. On the site it stated that only those that were made by Youngblood, were called Youngblood TX19. All others are what ever manufacturer TX19 such as CP TX19, Condor TX19 etc. Originals came in 3 weights, 325, 375 and 550 lb layups. It's a shame that site is down as it had great info.

Events / Re: SoCalJetBoats 2017 October Trip
« on: October 10, 2017, 02:11:37 pm »
Just wanted to thank everyone for helping load my boat on the beach after I got rocks wedged in the stuffer. Took about an hour to pull the loader and knock them out. No damage n running good again. Thanks again.

Engine Mechanical / Electrical / Re: Sustained engine RPM
« on: May 11, 2015, 11:48:32 am »
Yes, I run a remote oil filter.

Engine Mechanical / Electrical / Re: Sustained engine RPM
« on: May 11, 2015, 10:08:22 am »
So what heat exchanger would you guys recommend? I'm running a turbo with 10qt pan and will be pushing 700hp.

Jet Pumps / Re: How to clean out pump?
« on: May 11, 2015, 09:07:04 am »
Your Mom, thanks. The most obvious escaped me. I have a friend who is a Great aluminum welder. This past March, the river was so high and full of debris from shore that after 40 miles I eventually got a thick reed in the pump between impeller and wear ring. That was the worst to get out. No hook would've worked. Thanks for the idea!

Jet Pumps / How to clean out pump?
« on: May 10, 2015, 10:23:05 pm »
I bought a TX-19 in Jan. The pump is set back to where the inspection cover is half in and half out of the transom. On my current boat I can pull the back of the boat on shore and pull the cover to clean out debri s that gets into the pump. Does anyone know how to clean out the pump with the cover half in and half out with the aluminum transom plate sealed to it? The reason I ask is down at Pirate Cove, I have had to clean out my pump on 4 different occasions to get the boat to move.

Engine Mechanical / Electrical / Re: Sustained engine RPM
« on: May 09, 2015, 01:04:55 pm »
Thanks GT, I'll look into oil temps. Water is never over 120* even after it warms going thru intercooler first. I'll prob does get warm going thru turbo. Right now the engine is in a "Heavy/Wet" 19' with a stage II Legend pump wiyh AA impeller. Its going into a TX19 I picked up in Jan.

Engine Mechanical / Electrical / Re: Sustained engine RPM
« on: May 09, 2015, 12:02:28 pm »
Its a 4.6 DOHC all aluminum Ford mod motor. It'll push over 5k now, but I don't trust the stock bottom end w/too much boost. My oil pressure stays about 75psi at 3800 for the whole time and when changed looks good. Running 10qt pan. Great drain back on these engines. A/F ratio is 11:1-11.5:1 under boost and has a Walbro 225liter fuel pump. Never runs out of fuel. I just wanted to know if there was anything special other than piston-cylinder and valve guide clearance that needed to be done to run higher rpms for longer periods of time.

Engine Mechanical / Electrical / Sustained engine RPM
« on: May 09, 2015, 11:14:24 am »
Right now I am able to sustain 3800 rpm for 30min on a 19' jet with AA impeller. I am rebuilding the engine with all forged bottom end. Other than piston to cylinder and valve guide differences for marine engine, what else do I need so I can sustain 5000rpm for about 15min.

Engine Mechanical / Electrical / Update on 4.6 DOHC Turbo
« on: April 04, 2015, 11:23:48 am »
I installed a Ford 4.6 DOHC from a Lincoln Mark VIII in my jet boat 3 years ago. Last year i put a turbo in it. I had it built by a shop here in Las Vegas and run it through a air/water intercooler. I use stock lincoln exhaust manifolds which are stainless and merged them into a t-4 collector. I had it up to 8lbs of boost on a stock bottom end and ran 65mph on GPS in a heavy, read wet, 19' shallow V mini day at 4,800 rpm. I run a Legend pump with an AA impeller. I forgot to block a vacuum port on the carb and leaned it out. This melted the #7 spark plug which then filled with fuel and hydraulic'd the piston. It wondow'd the block. I had another one laying around and had it in the next day. I'm keeping it conservative until I get the forged rotating assembly in. Right now it is only showing 2lbs of boost at 4k and runs 42mph GPS Upriver in 7mph current. This engine and pump will be going into a TX-19, 500lb layup, and should be much more efficient


WTB / Looking for Legend Droop Snoot
« on: December 23, 2013, 02:23:15 pm »
Anyone know where or have a Legend Droop Snoot for sale? Must have the legend pump bolt pattern and diameter.


Engine Mechanical / Electrical / Re: Fuel return line
« on: December 16, 2013, 06:28:07 pm »
Thank you for the suggestions. Its nice to post a question and have people respond instead of look at your post then ignore it. Again, thank you!

Engine Mechanical / Electrical / Fuel return line
« on: December 16, 2013, 10:15:55 am »
Ok, next problem. For the turbo application, I am running a walbro in-line fuel pump and an Aeromotive return-style regulator. I have 2 11 gallon saddle tanks. Any ideas on how to run the fuel return back to the tanks? I want to be able to switch from one tank to another so I don't lean out if one sucks dry before the other and once one runs dry, I know that its time to turn around and go back. Any ideas would be great.

Jet Pumps / Re: Impeller size
« on: December 14, 2013, 11:53:13 am »
I'd like to know those tricks. Weeds got so bad that from boat launch at Pirate Cove to gas station, I had to jump in water and pull boat to shore. Pump so full that it had Zero maneuverability. As for the pump, I'm going to be running 340hp at 3600rpm and 500hp from 5200-5800rpm at 6lbs of boost. Next winter upgrading bottom end of engine to handle more, 430hp at 3600rpm and 600+hp from 4800-6000rpm at 14lbs boost.

Jet Pumps / Impeller size
« on: December 14, 2013, 09:44:39 am »
I posted on the engine tech about the turbo I am putting on my engine. Here is a link to what this combo will produce in a 2Valve engine. I am using an all aluminum 4 valve engine with much more flow capabilities. . It will be making at or more than 500 lb/ft of torque from 3500 rpm depending on how much boost I run . With this torque, should I be using an "A" or "AA". This will not be a racer, I just want to be able to cruise up or down river at 45/50ish and keep the rpms reasonable. I will also be doing a pump setback, getting the inspection hole outside the hull. PITA dragging the back of the boat up on shore so I can get all the grass sucked in at Pirate Cove out of the pump.

Any help would be greatly appreciated.

Thank you for the replies. I will def be using flappers as the old exhaust cutouts are completely under water at stand still. I figure since it will not be loud, I may as well make it really quiet and a sleeper. Definitely not a racer, but a good solid 50 cruiser.

Maybe wrong way of saying it. Not running logs or snails. Custom dry headers to turbo flange, then turbo, then exhaust from turbo with water run into exhaust post turbo. No, reversion has nothing to do with gravity, it is from the overlap in the cams and as the piston goes down while valve is still open it can create a suction. I know that the snails help keep water out of the cylinders, I was wanting to know if anyone has any knowledgeable opinions on if.. with the turbo being as high as it is, should there be any likelihood of the engine sucking the water up through the turbo and into the cylinders?

I posted this in Performance boats about a month ago and haven't gotten a response. Hoping someone over here will have some info on this. I have a 4.6 aluminum twin cam ford engine in a 19' Jet. Am putting a turbo (BW S475 1.10 AR 83mm with Air to Water intercooler) on it this winter and want to know if I can run the exhaust out the transom (single) without reversion/sucking water into engine. I will be addding water from engine cooling after the turbo to cool the exhaust, the plan was to run the exhaust down from the turbo then a 90* mandrel bend into the normal rubber tubing then out the transom. The 4.6 twin cam has a bit of overlap due to the twin cam 4valve arrangement. The turbo will be set about 1 1/2 feet above the transom. Should I be ok with this set up without worrying about sucking water back up? Thanks in advance for any help/info.

Topock / Laughlin / Re: Pirate Cove 8/31-9/2
« on: August 29, 2013, 11:43:09 am »
Cool! I'll keep an eye out for both of U. Beer sounds good but can't throw shoes w my back. Bringing my GF and her best female friend. Great eyecandy!!  ;)

Topock / Laughlin / Pirate Cove 8/31-9/2
« on: August 27, 2013, 03:08:02 pm »
If anyone is going to be out, I'll be there. Yes, its a madhouse but I get there early. 9-930 is usually easy getn in. Pirate Cove charges $15 day to launch, but if U slip the boat for $15 the launch is included. This way for 2 days its only $15 and for 3 days it only $30 and that includes the $5 fee to beach. Usually stay in Needles and it's anywhere from $39 per night to $46. That's single occupancy. I never tell them 2 adults because they usually add on $10 more per night. And Topoc 66 is a Great place to spend some time.

Topock / Laughlin / Re: Laughlin August 1-4
« on: August 03, 2013, 01:16:21 pm »
Be careful for the grass! Was at Topock and Pirates last weekend. Had t pull cover and pull grass out of pump 3 times. Just idling in Pirates will clog up th pump.

Lake Havasu / Re: Aquapalooza
« on: September 06, 2012, 11:58:18 pm »
Surfaholic, I guess Ur right. Checked th web page and it now shows cancelled. Sorry for th bad info.

Lake Havasu / Re: Aquapalooza
« on: September 04, 2012, 09:09:03 pm »
I was told about it by a friend. I then Googled it and went t their website and it shows it that weekend.

Lake Havasu / Re: Aquapalooza
« on: September 03, 2012, 11:43:33 pm »
A free concert on th water. Usually bout 300-500 boats tied up and listening t a couple bands. From about noon till 7pm.

Lake Havasu / Aquapalooza
« on: August 30, 2012, 02:51:34 pm »
Aquapalooza 9/15 at Havasu.

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