2008_247lsv

I added closed cooling to my 8.1 the head exchanger was part of a universal 454 full system closed cooling kit i made a custom bracket that bolted to the back of the engine with two of the bell housing bolts and then onto the transmission made and extension on mu thermostat housing to but the fill cap the highest part of the motor used some flexible stainless hose for one of the water pump lines and a custom pipe with threaded port to tie heater in pretty simple set up I kept the manifolds cooled with lake water to make sure it did not overheat since i was not 100 percent sure of heat exchanger sizing, i have been running this setup for a few years now and usually runs right at 159-162 sometimes a little higher if im running wide open for a while but never over 170 hearer blows really hot even when i shut off the engine since it has its own circulating pump

i wanted to run dual batteries in my boat but did not like the available options, not really a fan of the the auto charging relays cause they cause the good battery to charge the drained battery, I don't like the thought of having to flip a switch all the time to switch between batteries, so I separated the power in my boat the ignition and gauges are on one battery then i powered MUX module and my stereo on the the other battery and bought a second alternator have the second alternator hooked stereo battery, to add the second battery i was going to just buy a truck alternator bracket the mounts the alternator high and cut off the part of the bracket that holds the power steering pump, but then on ebay a came across a vovlo penta bracket for an 8.1 that mounted an alternator high and it fit perfect, the only thing i had to change was rotate the air filter a little to make it fit and change one idler form ribbed to smooth for the new belt routing, used a tape to get an approximate length on the belt and had Napa order me a few belts and found one that fit, the next project was where to mount two group 31 alternators so i made some shelf's out of aluminum and hung then in the back on my boat they bolt on where angle on the engine dividers bolt in then driller one hole in the boat to add a bolt towards the side of the boat and made a bracket that bolts the back of the shelf and bolts with hooks (u bolts lift points whatever you want to call them on the back of the boat) then I got 1/4 abs plastic like the engine dividers are made form and bent covers to go over the batteries and to me it blends in and looks factory.

this is basically just a link to the page that describes the full rebuild of my supra rider i did about 10 years ago bought the boat for $1200 from the orginal owners sunk over $25000 into it and when i got everything working just right and finished I sold it for $14000 I was not sure where to put this but this like may help others there are a ton of pictures made molds to make custom fiberglass parts redid floor and stringers and then took back apart 2 years later to add sub-floor ballast tanks and made the floor completely out of fiberglass the second time re gel coated the entire boat rebuild engine and transmission https://suprarider.shutterfly.com/ this link makes it sound like its still for sale and for all i know it may be for sale now but not by me I sold it in 2011