Crankcase doesn't see the exact same pressure or vacuum everywhere so distance to the source is the driver...………...
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Crankcase doesn't see the exact same pressure or vacuum everywhere so distance to the source is the driver...………...
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http://www.boatracingfacts.com/forums/showthread.php?9841-The-new-Komato-Hatchet-lower-unit&highlight=KOMATO
a 7/8" plate with eccentric counterbore makes a waterpump. See Bass water Pump.
Chances are if you don't have patents your just a CAD Jockey...…………………….
Well here's part of the puzzle
Can you afford it?????????????
Get a Yamaha 30 Triple
Howard Richards RED can run a wave based simulation using DYNOMATION. As far as Crossflows go he has experience and at one time ran shop at Second Effort.
I would go to Looper Engine since they will...
oh well guess you can't.
I don't grind I modify to purpose driven specs in order to gain performance for a specific application.
quantify
"too wide" if you can.
do you have any pictures?
what is "so much" ?
Prop engines turn more than 15,000rpm...…………………..
What does "Big Ports" mean ?
The Wave Simulation Software simulates waves in, out and thru the engine.
carbs sold / heads available in future
Wave Simulation 8hrs later will, Empirical Formula driven wont...……..
these will help
https://w68072ww.ebay.com/itm/132688744642?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1558.l2648
Carbs/intake gone sold
I haven't seen a complete port map ever posted here and wondered if nyone really has a clue as to what one liiks like. OEMs use dynomation two-stroke to design new engines. I wrote excel spreadsheet...
Ever wonder what a real port map looks like?
Need one to run Dynomation Simulation
Wrong thread
6280062799 close enough to "modify" it is tapered
yep
this is for etec 90ho - 75hp triple, looks really close..................................get gasket #6 to verify
...
I talked to the mechanic at inland Jet before he died.
It is a great pipe.
The owner is friendly and helpful am sure he will help you.
The late model 56ci Omc triples 70hp went to a 1-7/16 dia carb after OMC realized the 1-1/2" was not necessary to make 70hp.
The late model 2 cyl's continued to use the 1-1/2 big carbss and will fit...
6277362772627726279262773
Small World 90hp etec triple tuner right in the middle.
There is a to of theory behind the geometry but it is a good picture...
get some pics and look. cut off stock and get some square tube and make a cowbell.
as far as intake you are giving up a lot there................
62771
added a lot of punch out of turns
find 3 of these 62770
http://www.ebay.com/itm/SMA5169-Evinrude-BRP-Etec-2011-reed-plate-assembly-5007349-0353266-outboard/291985032429?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2055119.m1438.l2649
...
mill head to sst 60 specs, "big carbies" , sst 60 style tuner w/ dry exhaust, front half work w/good cages = tick over a hundred been done before....
yes it is very important especially when "making" a intake to keep the bearing oil feature...........
Compression relief to make starting easier, has miniscule effect while engine is operating..........
In the VIDEO the Evinrude 45ss Osa ran had the original 45ss Gearcase with a 12p tunnel boat prop.
I mentioned to Osa that a nitro foot w/low water pu & 11 x 21 would carry that V-hull and not...
I just thought Osa is really brave to take that thing out in open waters and hop over waves with it. He was undefeated in that little boat.
Ya if Osa went up with the set up and allow the 12p...
go to https://www.youtube.com/watch?v=gnqr7C2jcuY
One of my modified 45ss Engines on mini deep vee in Saint Thomas............
Best Pass of Day was 61mph @ 6,000 rpm w/12p Dewald tunnel boat prop...
The 1" venturi 2bbls will light up a stock OMC 50 Twin.
Getting on plane isn't that bad with a light boat.
Only thing I never did was rig a PROGGRESIVE throttle to open one barrel at a time.
There...