Classic Australian Wooden Power Boat Association

Bit of cut and pasting here, hope it works. Should give a bit of an intro to "Echo Too"


Ski Boat
Built; from about 1959 to 1962 (it took a while)
Owner/Builder; Brian Wiseman
15’8” flat bottom ski boat, ¼” ply wood skin (bondwood) over Queensland maple frames with Oregon stringers.
Bronze screwed and glued with casein glue (horse glue)
1962-1964


Estimated 80hp (stock 239 flathead output)
Ford Flathead, 59a, 239 cubic inch, 3 ¾” stroke, 3 3/16” bore, compression 6.1:1, single Marvel Schebler 10-3300 2bbl carburettor.
Exhaust manifolds 1 ¼” id galvanized into copper tail pipes.
divers helmet distributor, generator converted to 12v.
Propeller 12.5” dia x 11”pitch, no cup, 7/8” propeller shaft, direct drive.
Smiths marine gauges













2008-2009, 2009-2010 season



Estimated 170hp
Bored to 3 5/16” to 258 cubic inch, mains .020, big end .020.
Ross forged pistons, French flathead connecting rods, edelbrock alloy heads, block deck relieved 3/16”, compression 8.2:1. Full oil filtration.
Iskederian 88 full race camshaft, iskederian blue valve springs, Johnston hollow body adjustable lifters, Manley Pro flow valves, inlet oversize 1.6”, exhaust std 1.5”, ported inlet and exhaust ports, edelbrock super dual inlet manifold, 2x2bbl Marvel Schebler carburettors, mandrel bent stainless steel extractors , 1 5/8” primaries, 2” secondary pipes water jacketed, end pipes carry the same 40 degree angle as the exhaust ports leaving the block.
Mallory electronic ignition.
Propeller 12” dia x 12”pitch, super cup, 7/8” propeller shaft. Adjustable trim tabs fitted to handle rough water and porpoiseing at speed.
44mph @ 3900rpm, full throttle.


2010-2011, 2011-2012 season



Estimated 220hp
Gm 6v53 blower .9 under driven, 3psi boost, water intercooler, water cooled inlet manifold, phenolic resin block insulator, twin mechanical fuel pumps, boost/vacuum and fuel pressure gauges, crow blower grind cam. Centre main bearing cap support.
Propeller 12” dia x 15”pitch cleaver, super cup, 1” 431grade stainless steel propeller shaft.
49mph @ 3500rpm (gps), 67mph @ 4500rpm rev limit.

Ah! 10pictures per post!! But not sure why a couple of them have doubled up!!

Then there is the "Wells Bilt" which is past being in a bad state, i'll get some more pictures of it next!

Cheers,
James

What an amazing looking boat.....welcome aboard by the way. Not sure how the others get pictures to size but i email the photo's to my own email address then save them, outlook resizes them automaticaly to a size that can be uploaded. Tech heads will have a proper way but this way works for me. cheers Ray

Ahoy James!

Looks like (unlike me) mechanical wise you look like you know what you are doing! Keep it going, I reckon you will be up to the magical 100 mph mark with the next photos

Thanks for sharing the story thus far, Chris

I don't know much about art but I now what I like
What an awesome machine. Welcome aboard.
Nick

looks like you have gone to a lot of trouble there. welcome

i presume a capsule is next since you now have blower . great boat well done.

nice boat mate. i love how every timber boat is different. especially when blowers are involved
be great to see the boat. where are you guys from?
brian

Again, welcome James.

She is certainly a nice bit of work and a credit to you.

Re the pics, you will need to resize them and then save that size back to Image Shack. Otherwise, save the resized pic to your PC and upload the pics to the Board. There is an explaination elsewhere of the board of how to do that. A good size for the BB is about 30 cm at 72 pixels/inch.

To see a full view the larger pictures posted here, just right click on the picture and sel;ect "View Image".

Greg

Thanks for the kind words!

Could not fit this in the above post, so will add a couple more pictures here.












Trim tabs were added after it's first couple of outings. Chop and wakes from other boats caused a lot of thumping and crashing. Initially excessive bow rise was an issue and has been solved with the fitting of the Lundberg 12x15 prop which has a lot of aft rake.

My Family owned a property in behind Glenbawn Dam that is called "Echo" hence the boat's name "Echo Too".

rayza1; Just sent posts to email and attached, I find this the easiest way as well! The originals were sent from a photo hosting web site, this is the only way to attach pictures on some forums.

Chivs; 100 is a nice round number ! Currently the sea strainers are blowing their lids off at 60mph, will build some descent ones when I return to work.

reddwarf; the blower rarely boosts, generally only if I am playing as it requires descent throttle opening to grab enough air to compress, the intercooling and bottom end cam have made it a bit of a torque monster at low revs, I ski at 32mph and 2200rpm, pulling 2 skiers up it still will not boost (not enough throttle opening), open the throttles enough and it will boost from idle! Blower is .9 under driven and running 3psi boost, more boost is only a pulley change away, there is no need for it though and I'm keen to look after the 1945 model flatty.

bauchy; I am a big fan of supercharging. I live in Muswellbrook NSW, half way between Newcastle and Tamworth. Glenbawn dam is 25min away and due to it's size there are many bays and quiet ski areas.

Cheers,
James

Welcome James, bloody nice job..how would you like to 'tinker' with my 272 y block in your spare time? Now that Echo Too is finished, you must be sitting around wondering what to do with yourself Good onya, hope to see you in Nerandera later this year!

Jon.