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And whatever became of the Eliminator/Audi diesel program?
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I'd like to see an Audi /VW diesel program, I bet that could really give a gas engine a run for the money.
Too bad it could cost 5 times a gas engine but with volume it could be affordable? |
Here,s a guy that put a Audi V6 TDI turbodiesel in a Searay 20 ft or so,he replaced the Alpha with a Bravo 1 ,the engine has 20 K kilometers ,and came out of a wrecked audi .
http://nl.youtube.com/watch?v=hH26-u...eature=related http://www.snelleboten.nl/viewtopic.php?t=5821 scroll down on the last link for pics |
I did a 07 43 Nor-tech project with the 480hp Yanmars and ASD-8's. It was a bullit proof package. To give you some stats...The Nor-Tech is 44.6 and weighs 14200k and we topped out 74.6. We could have done more prop testing and changed a few things, but a buyer came along and I was willing to sell. My goal was 80 top end. I wish you good luck and if I can help you in anyway, send me a pm. Jeff
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Jassman
Wat transmissions did you use single speed or 2 speed ? And how did your boat accelerate out of the hole ? and from 40-70 ? |
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Originally Posted by stirling
(Post 2706451)
On my old Ford F 250 ,I repaced the probe from after the turbo to pre turbo ,and saw a 250 degrees difference in temp
Before the turbo its a little hotter,its not something to overlook when on the edge. The bolt that can be removed to install the pyro on my Yanmars are pre turbo as well. I run the probes in my outboards powered catamaran also all the time ,and I have never lost a piece probe . Even when I had a #5 cilinder meltdown and the piston came out the exhaust port in liquid form the molten ali sat into the exhaust port right on top of the probe .
Originally Posted by METAL BROS RACING
(Post 2706468)
how about a pre and a post turbo gauge?
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Originally Posted by PatriYacht
(Post 2705687)
With the price of diesel fuel and the pollution laws that went into effect in 2007, it seems like light diesel development has stalled. My 2007 GMC Sierra Classic Duramax is the nicest truck I've ever owned. Looks like I might have to keep it for a while. I know that the auto makers were working on even higher displacement and hp light truck diesels. Does anyone know what's happening with those right now?
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Originally Posted by 29Firefox
(Post 2706250)
First! the normal position of a pyrometer is on the outlet side of the turbo in the event of a failure nothing goes through the turbo.
Second! pyrometer probes can handle temperatures of over 1500F. If it ever got hot enough to destroy the probe the engine would've had a meltdown first. Third! diesel engines are real easy to destroy by over boosting or over loading. That is why a pyrometer is just about always installed. The pyrometer will give you a heads up before anything else that your heading for something bad.:eek: I assume you are not familar with the yanmar 440 he is running. The port for the exhaust temp is before the turbo, thats why i wanted to make sure he understood that. Most probes may be able to handle the temps, but I have seen these engines run over 1500 degrees and run that way for a while. I bet you the majority of diesel boats out there don't run pyros. especially now that most of them are controlled electronically, its not as easy to turn up the power. unless you have the program to do so. As of yet, yanmar won't let us touch anything on the new motors. The easiest way to know if your motor is overloaded is to check the WOT rpms. If you are not turning the recomended rpms then you need to cut back on your props or the load in the boat. We ran the engines in the race boat at 1550 egts spinning up near 3600 rpms. However I would not recomend doing so since yours is a pleasure boat that you want to keep running reliably for a long time to come. I know the boat was sold to Greece a couple of years ago, and is still running well. I don't think the engines were ever turned back down. |
Originally Posted by stirling
(Post 2706534)
Jassman
Wat transmissions did you use single speed or 2 speed ? And how did your boat accelerate out of the hole ? and from 40-70 ? The other thing used with the ASD 8 drives is a vent tube going down to the prop to help with the holeshot. |
Originally Posted by obrien
(Post 2706871)
I assume you are not familar with the yanmar 440 he is running. The port for the exhaust temp is before the turbo, thats why i wanted to make sure he understood that. Most probes may be able to handle the temps, but I have seen these engines run over 1500 degrees and run that way for a while. I bet you the majority of diesel boats out there don't run pyros. especially now that most of them are controlled electronically, its not as easy to turn up the power. unless you have the program to do so. As of yet, yanmar won't let us touch anything on the new motors. The easiest way to know if your motor is overloaded is to check the WOT rpms. If you are not turning the recomended rpms then you need to cut back on your props or the load in the boat.
We ran the engines in the race boat at 1550 egts spinning up near 3600 rpms. However I would not recomend doing so since yours is a pleasure boat that you want to keep running reliably for a long time to come. I know the boat was sold to Greece a couple of years ago, and is still running well. I don't think the engines were ever turned back down. |
Originally Posted by stirling
(Post 2706534)
Jassman
Wat transmissions did you use single speed or 2 speed ? And how did your boat accelerate out of the hole ? and from 40-70 ? single speed lagged for a few seconds, turbo kicked in and got up on plane easily and accelerated good like a 525 boat after 69-70 reaching the top end 74.6 took a while. |
I remember Mastry Marine had designed an inner transom match for Yanmar diesel to a Bravo drive some years ago. In fact, there used to be a cat with this setup in Key West that would take 10-12 passengers on a tour around the island. Seems like it ran 60-ish?
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Re-inventing the wheel?
Originally Posted by Gordo
(Post 2707096)
I remember Mastry Marine had designed an inner transom match for Yanmar diesel to a Bravo drive some years ago. In fact, there used to be a cat with this setup in Key West that would take 10-12 passengers on a tour around the island. Seems like it ran 60-ish?
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xx
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Originally Posted by 29Firefox
(Post 2707337)
The Yanmar engine has an SAE industrial fly wheel set up. There has always been off the shelf parts to hook up SAE industrial flywheel set ups to Bravos. :drink:
If I only knew where to buy one back then... |
1 Attachment(s)
Originally Posted by Gordo
(Post 2707096)
I remember Mastry Marine had designed an inner transom match for Yanmar diesel to a Bravo drive some years ago. In fact, there used to be a cat with this setup in Key West that would take 10-12 passengers on a tour around the island. Seems like it ran 60-ish?
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Originally Posted by 29Firefox
(Post 2706908)
It takes about 30 minutes to drill & tap the mixing elbow on a 6LY3-ETP so you can install a post turbo probe. :drink:
Only problem is your exhaust temp is no longer accurate, it will be cooler that the reading you should get. |
Originally Posted by Gordo
(Post 2707096)
I remember Mastry Marine had designed an inner transom match for Yanmar diesel to a Bravo drive some years ago. In fact, there used to be a cat with this setup in Key West that would take 10-12 passengers on a tour around the island. Seems like it ran 60-ish?
The boat you are refering to is the Sea Rocket. there have been 15 or so built so far, and with the exception of the first two that were not built as sea rockets,we have been involved at Mastry with all of them. These boats all run 6LPs and bravo ones. The boats run in the 55-60 range. To answer the question about the sterndrive package for yanmars, yes Mastry is the one who created that package. We had a casting made for a sterndrive bell housing that would allow the 6LP to mate with the bravo drives. We have also done a few boats with the 6LY engines and bravos, however those engines really have too much tq for the bravo drives. The only real success we had with the LY bravo combo was in a 36 Spectre cat with 2 speed transmissions and bravos. The boat ran just over 100 mph. |
Originally Posted by BOBCATMATHEWS
(Post 2707409)
was it this one(this pic taken may this year)
That is one of the boats we did about 2 years ago, if I remember correctly. stirling, I know we used to have a casting that would bolt the LY engines to a bravo inner transom plate. 29firefox is right there is a way to adapt the inboard version of the 6lp using a jack shaft setup, or we can covert them over to a sterndrive application. |
Originally Posted by obrien
(Post 2707491)
Only problem is your exhaust temp is no longer accurate, it will be cooler that the reading you should get.
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Originally Posted by 29Firefox
(Post 2707543)
It will be "accurate". Just "proportionally" lower. Just mark the zones on the gauge so the operator can understand whats going on. I use automotive decal vinyl around the outer edges of the bezel it sticks to the glass real good. Operators don't always read the numbers on gauges right. Anything important like oil pressure, coolant temp, pyrometer etcetera get some green, yellow and red so the operator can tell at a glance what his status is.:drink:
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Originally Posted by stirling
(Post 2707404)
On my other diesel boat ,a Sonic 28 with a Yanmar 6 LY ,I needed a bellhouse for a bravo to yanmar 6LY ,I called a lot of people in the US ,and did a lot of search ,but could not found a bellhouse ... I used a tailstock and a special made splined adapter to make the connection between enginea and drive,I was thinking about making one from a solid plate ali
If I only knew where to buy one back then... |
Further Progress...
Rigging is moving along on the 43 Cummins...
http://www.performanceboats.com/html...cummins_21.jpg http://www.performanceboats.com/html...cummins_22.jpg Motors are in with just "inches" to spare... http://www.performanceboats.com/html...cummins_16.jpg http://www.performanceboats.com/html...cummins_14.jpg |
Originally Posted by shueman
(Post 2713411)
Rigging is moving along on the 43 Cummins...
http://www.performanceboats.com/html...cummins_21.jpg http://www.performanceboats.com/html...cummins_22.jpg Motors are in with just "inches" to spare... http://www.performanceboats.com/html...cummins_16.jpg http://www.performanceboats.com/html...cummins_14.jpg Dean |
Backside of the dash...processors galore...
http://www.performanceboats.com/html...cummins_12.jpg Full interior cabin going at the same time... http://www.performanceboats.com/html...cummins_24.jpg New sea strainers developed by Teague... http://www.performanceboats.com/html...trainer-02.jpg New design corrison-resistant NXT drives... http://www.performanceboats.com/html...cummins_25.jpg Drivetrain will start with 1.35 gears and labbed 38p 5-blades, targeting 75-80mph running speed... |
No Bling Bling?
It's looking like a good straight clean install..... Just a minor suggestion from the peanut gallery..... On the step on surfaces polished stainless steel diamond plate. On all sides and bilge 1 mm mirror polished stainless steel. It makes wiping up messes real easy and sets every thing off.:drink:
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Originally Posted by 29Firefox
(Post 2713589)
It's looking like a good straight clean install..... Just a minor suggestion from the peanut gallery..... On the step on surfaces polished stainless steel diamond plate. On all sides and bilge 1 mm mirror polished stainless steel. It makes wiping up messes real easy and sets every thing off.:drink:
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looks good!:ernaehrung004:
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The boat is looking good. I am curious to see how this combo works out.
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Originally Posted by shueman
(Post 2713414)
Drivetrain will start with 1.35 gears and labbed 38p 5-blades, targeting 75-80mph running speed...
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The drives are 1.35 but what are those boxes on the back of the engines are they a tranny or crash box? If so is there a ratio in there?
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Originally Posted by obrien
(Post 2713670)
The boat is looking good. I am curious to see how this combo works out.
We should take bets...My guess will be 78.6 mph |
84mph
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Originally Posted by steelhorse
(Post 2714035)
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75mph
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what diameter props are you going to start with?
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Which ICAL template did they set up the ECM with?:drink:
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Originally Posted by stirling
(Post 2707404)
On my other diesel boat ,a Sonic 28 with a Yanmar 6 LY ,I needed a bellhouse for a bravo to yanmar 6LY ,I called a lot of people in the US ,and did a lot of search ,but could not found a bellhouse ... I used a tailstock and a special made splined adapter to make the connection between enginea and drive,I was thinking about making one from a solid plate ali
If I only knew where to buy one back then...
Originally Posted by 29Firefox
(Post 2708059)
6LY series engine has a industrial SAE #3 flywheel & housing setup. Cummins 6BT has a SAE #3 housing set up and is sold in a sterndrive package with a bravo out drive:drink:
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