Hi All,
Just finished increasing the pitch and cupping of the propellors, have also considerably reduced the blade area on the front props, hopefully they will now absorb the extra power and give the boat more speed.

Peter

Peter,

Will you be at the Cowes race?

Jeff

peter,

thanks for the reply. let me help you out with were you want to be in florida , it's easy , Naples !

were on the gulf so the water is smooth and warm , being this far south the winters here are very mild , usually in the 70's and some days 80's. there are alot of Brits that live here half the year as well.

on the boating side if i could get the contact info for who you used on the ecu reprogram i'd appreciate it.

i started looking for used 435 charge coolers but they are hard to find here and new ones are real expensive. i also checked ebay/uk but had no luck. if you here of any available please let me know.

is there any problems with water reversion into the engines when they are off , if you remove the exhaust bellows ?

seems like a good way to test how loud it well be before commiting to full transom exhaust. my Carolyn doesn't want the exhaust to be too loud. ( would also think it would help lower drive temps with the exhaust not going thru them).

thanks again for your help , i'll make sure to return the favor when your in florida.

Peter just read this thread looks like it will be interesting to see how all your mod's will work on the completed project. Please keep posting!

Hi Jeff,
We never miss it.. unfortunately we have no boat this year:( so we will be land based spectators, are you coming over? if so maybe we could meet up for a beer?

Peter & Carolyn

I'll be there Pete. I'll be hanging out with the Toll family.
Christian is driving the Dry Martini Cig and his Uncle Tony is running his Apache.
Need any Moog valves for your steering?
I may have something knocking about.

Jeff

How is the upgrade coming along Peter?

Wouldn't mind also to know about the effect of the removed exhaust bellows.

i wanted to have the volvo updates done on all my computers before i made any changes , . had them done and 2 weeks later blew an engine , dont know why . no over heating or oil pressure issues , but its bad . hopefully taking it out next week for exam. so never got to try removing the exhaust bellows . i've got a lead on a pair of d6/435's but dont know what we would use for compters since volvo never had a 435/ outdrive config. none of the shops so far want or know how to do it. (sorry peter i feel like i highjacked your thread a little)

Hi,
sorry to hear about your engine problems as previously stated the cooling systems on the 350 is quite borderline when you are extracting more power, also Volvo gages are damped to stop fluctuations but this also stops you from seeing very rapid increases in temperature. I have also found that if you have a chlorofier for your hot water system the extra resistance slows the flow down inside the cylinder block making the cooling system even more borderline. Removing the exhaust bellows reduces the exhaust back pressure freeing up a few horsepower and reducing the boost pressure required for a given horsepower which in turn lowers the temperatures, the downside is you will get a very sooty drive and transom. Through transom exhausts with longish tailpipes work much better reducing temperatures and increasing power to a greater extent. As far as the noise goes at idle you get a rumble with turbo whine as you shift in and out of gear the pitch goes up and down. as you increase the rpm the turbos along with water injection act as a silencer they sound really nice (for a diesel) and never anti-social.


peter

Peter,

thanks for the info. how is the install of your 435's going ? are you going to use your 350 wiring harnesses and computers to run the 435's ? what about the additional rear spacing the 435's need to clear , are you going to make them or buy the volvo parts for the d6-400 to make them fit.

i think there are a lot of people here watching you do these upgrades. no one else is doing this and were all curious . depending on how difficult the swap is i may do it myself. i've got access to 2 used 435's but not the knowledge to be the pioneer on this type of swap.

PLEASE keep posting pictures and keeping us all updated.

Hi All,
Had a busy few weeks, transom shields are installed permanently and today engines were trial fitted so that i can do most of the rigging and exhaust fabrication, i will then pull them back out finish the paintwork in the bilges then install them for good. Although they are quite close together there is ample working room. I bought the extended bell housings from volvo as they were both cheaper and lighter than making my own from billet. The PCU'S are now mounted on the engines next to the ECU'S so she is getting a completely new wiring system.We are hoping to wake up the trim functions that we believe are dormant on the 435 engine will let you know how this goes.

Peter

A few more pictures

WOW! What an amazing project! Very cool. Thanks for sharing your build and all the great pics.

Some more pictures of Peter's project

And a few more

And a few more

And the last few for today

You have to love the simplicity of the rear engine mount/transom assembly design that VP uses. I noticed that you put the bellhousings in first, and then bolted the engines to the bellhousing instead of dropping the entire assembly in at once. Any particular reason for that?

Very clean setup, by the way...

Hi Chuck,
Although it is not obvious in the photographs the engines and bell housings are much longer than the engine bay opening, so by fitting the bell housings first i can drop the engines in horizontally and as the bell housings are much longer all the bolts are very easy to get at. It also means you can get the engines in and out without removing the drives. I have now started the hydraulic and electrical rigging also mounted the fuel filters to establish hose lengths.

Peter

Nice. Wish that I owned a hydraulics shop like you...

Engines are a beauty. Made for the IPS system right? Which is why your wondering about the trim?

I wonder why Volvo sometimes paints them white instead of green like this?

Peter,

your install is absolutely beautiful ! your detail in your work is like nothing i've seen. i'm curious about a few things in your install.

1. are you going to use the super chargers ? didn't you remove them in your last configuration ?

2. are you using volvo's shift actuators or have you found a way to bypass them?

3. well the evc-d's talk to an ecu out of an inboard motor ? you mentioned trim , i was under the impression trim was handled by the evc's

please keep us upto date.

p.s. i'm hoping to visit my daughter at her university in Brighton soon , if possible would love to see your boat in person.

Hi PhatboyC,
In England they seem to paint all their engines up to about 500hp green and above that horsepower white, will answer trim question on next post.

All The Best
Peter

Thanks whatta life,
1. We are using super chargers this time round because the turbos are much larger and as we sometimes go out in extremely rough conditions the engines wouldn't have enough torque to climb the big swells without the superchargers.

2. We are using volvo shift actuators, as by rebuilding them myself i can make them very reliable.

3. My ECU wizard says he can change serial numbers and match all the components so that the 435 will think its a stern drive package.

It would be great to see you in England when you come over to visit your daughter we are only about 60 miles from Brighton my number is 07974182330 we are usually here Thursday - Sunday every week.

All The Best
Peter

Hi All,
Started fabrication of the exhaust risers and cool collars, risers will be ceramic coated and i am making a mould for the tails so we can make them in carbon fibre as they go right through the bathing platform they would be very heavy in stainless.

Peter

Hi All,
made all a little more progress with the exhausts, had a mock up with cardboard, fibreglass and stainless steel, i then brought them back to work and used filler to form the transition between the round stub and the oval pipe.
Pictures to follow

Peter

pictures as promised....

Peter

Nice work, look forward to seeing the carbon complete too

Jon

Thanks cougarman, made the rest of the parts for the exhaust cooling systems and had a final mockup of the exhaust tailpipe pattern this has now been collected by Carbon weezel who are going to manufacture two carbon tails from it. The stainless steel tail would weigh 7 kilos, carbon fibre is going to be around 1.5 kilos:D:D

Peter

Its a shame that beautiful carbon is somewhat hidden.

Thats whats great about personal projects.
The time, the detail, your own hands getting it done.

Sweat equity!

Thanks again for sharing
Jon

Hi All,
The stainless part of the exhaust has now been fully welded and is ready for ceramic coating. I mocked up all the raw water cooling pipes in a mixture of silicon pre-formed hose and carbon fibre tube, these are large bore to allow a geater volume of water through the heat exchangers and the charge coolers.Vein type water pumps become very in efficient with back pressure.Also made a carbon fibre bracket for holding the battery master switches.

Peter

Those look like electronic battery switches. Which ones are you using?

Hi Chuck,
The battery isolators are made by a british company called albright international, they are magnetic latching and spark free, i also use their polarity change over switches for driving the trim pumps saves a lot of wiring.

Peter

Love to learn more about how they work?


Jon

Hi Jon,
Parker build us special hydraulic pumps with a permanent magnet motor that only has two wires it has almost twice as much power as a mercury racing trim pump enabling us to move the drives much more rapidly. The albright polarity change over switches are wired directly to the battery isolators and then you only need two trigger wires one for up and one for down, by mounting the two trim pumps on a carbon sheet including the switch gear they are just over half the weight of a pair of merc racing pumps.
Pictures are of the Ilmor engined boat that we are currently building.

Peter

Hi all,
Made loads of progress... Bonded a piece of carbon fibre into the lightweight dashboard which i have now cut to fit a pair of garmin screens so it will be very similar to Carbon Cheetah, also installed trim pumps, electric and mechanical bilge pumps and some of the steering hoses should get the engines back in next weekend.

Peter

Hi All,
Completed the awkward to get at rigging behind the engines and reinstalled them, also pretty much finished the dash just needs the carbon face laquering.

Peter

Hi All,
Dashboard is ready for installation and i have been getting along with the seawater pipework.

Peter

Incredible workmanship. Thanks!