Marauder 19

[QUOTE=DrCC] My guess is, the turbos are junk and probably the reason they were left inside the boat.

My only concern now would be the center tab falling off.
I would add 6 more big bolts to the center tab on the transom.
Dig a hole in the front yard, bury the boat up to the waterline, fill the boat with the remaining dirt and plant some pretty flowers.

Oh, and change the "Chrysler Powered" on the side to "Once Chrysler Turbo Powered"
[/QUOTE.

Drcc. After some thought I don't think that is the route I will take. But thanks for the vote of confidence.

hahaha!!!    It's only timing, Bill.

Ya know, 2yrs. ago I had a complete "low-hour" drop-in, hook-up and go skiing engine for 1200.00

If Bruce can sell the turbos for 10k, 62wood has a beautiful "New Old Stock" 300hp 350 Crusader.

O. I. C.   I was going to say that Dunphy flag's gonna look purdy funny on a Higgins.

Gary S wrote: DrCC wrote:    62wood has a beautiful "New Old Stock" 300hp 350 Crusader. Don't be jumping to conclusions,I saw him at GL eyeing Pete's new Dunphy flag He might right now be cooking up a story for Pam---

Gary,
I still don't think Steve'd figured out his YH problem yet!!! Pam'e getting pissed from the cost of all the carbs he's ordered!!

I just today got the two rebuild kits in for my YH's on my 312. They do not seem to be that complicated. I guess I'll find out. Next trip is over to my Napa store to see if they still have some decent carb cleaner that the GD EPA hasn't banned!!!

eric lavine wrote: 63, i beg to differ. a super charger will raise compression ratio thus low compression pistons in a supercharged engine, a SC is like a rotary screw positive displacement pump a turbo merely increases air volume. again i could be wrong but i specifically remember this in turbo school because i thought the same. I may have to go back to turbo 101

My understanding is that compression ratio is a fixed number - the volume at BDC over the volume at TDC. A blower of any type increases the quantity of fuel/air stuffed into the cylinder on the intake stroke, giving more power. The blower increases pressure in the cylinder, not the ratio.

At least you took Turbo 101 - I'm barely past Oil Change 101!

Gary S wrote: I bought a gallon can at Napa this spring,the one with the basket in it.Fox River water is stronger I think I'm sure you remember the stuff of old where it had a water layer in it to keep it from evaporating,you'd lift the basket fast and see the darker stuff below? Well forget that,the new stuff doesn't do it,it now all looks the same.

I have to do the same since my YH carb rebuild kits from Daytona showed up. Per Billy, Berrymans carb cleaner is still the best and pretty good. I hope Napa can get it for me if they don't stock it. I remember the "good old days" before the EPA came dome on the stuff. If you forgot and left the zinc die cast carb in the cleaner too long, you'd pull out half of a carb body!! It was pretty caustic and I suspect contained sodium hydroxide besides the solvents. The sodium hydroxide was the base solution to the hot tanks as well. Man, you stuck an engine block in it and it came out clean!!

Gary,
What brand did you end up with from Napa?

My turbo experience is with diesels, and they definitely put out psi's! My Suburban with 6.5 turbo maxed out at about 12 psi, you can't boost more than 15 psi on those engines without something breaking. Cummins diesels can handle 30 psi. I'm driving a Jeep Liberty diesel now and I don't know what kind of pressure the turbo puts out.

Back to the 440 - I've been going back and forth in my mind on what I'd do with it. I think my first step would be to get someone with turbo knowledge to check them out - bearings Ok, oil passages ok, vanes in good shape and balanced. I don't think that would cost much if you could find a guy that might enjoy the project. If the turbos were in running shape, or could be for reasonable money, I can't see a reason to not install them.

where does the boost get measured fella's?
im on a mission now.
you guys are saying that a turbo will raise compression, im saying it doesnt
i am saying a roots type blower will raise compression
im not disputing any of this, but back at Ohio diesel tech, i specifically remember this being brought up

maybe it was a trick question, does it raise compression ratio, and obviously it doesnt because that is controlled by bore and stroke and is fixed.
i was always under the assumption that turbos increased flow and not pressure before the cylinder, thus boost, and a roots type displacement supercharger increased cylinder compression because it forced air, intake would open and the charger would pressurize the cylinder.
unlike a turbo.
a turbo is like a cetrifugal pump, if you block the hose end it will not build pressure and blow the hose, unlike a supercharger which it will build pressure and blow the hose

Eric, I think you've got it right there, we probably were saying the same thing only mixing up compression (pressure) with compression ratio which is fixed as you say.

A turbo is centrifugal, but so are some superchargers, Procharger for example is centrifugal. The roots type direct displacement blowers are pretty amazing, they'll push air until something bursts on the other end. We used to use them for blast air for dust removal in a factory, had to have pop-off relief valves because if something plugged you'd blow apart the piping.

Does anyone have a picture of a twin turbo setup all put together, showing the flow from the manifolds to the turbos and then out? Even if not a 440 I assume it would give Bill a decent idea of what he is facing.

Luchog posted pictures of a "bi turbo" Commander a few months ago.

This setup looks very similar to the one I have. Turbos blow air into a stuffer box around carb. None the less, it all seems a bit much and a little overboard (no pun intended)!

Bill, obviously you need to do what you feel comfortable with, and the important thing is to get the boat in good running order for next year. My only comment - I took another look at your picture showing the parts you have - it appears to me that everything is there to just bolt the system up. So the only question would be if the turbos are in running shape. If so, when you get an engine it would be easy to mock up the install of the parts you have, see how everything fits, and make your decision then.

Oh and Bill, I do appologize for the yard ornament crack.
I was merely attemping to be humorous. No disrespect intended.

Someone suggested I do that with my old Mustang hull.

I do agree, turbos a tad overboard.   I still believe there was a reason they were left in the boat.