MacGregorSailors.com

I stand corrected. Actually, I recline corrected.

Now this forum has given me yet another to be surprised..

"well, I'll be direct injected......."

I have ever only fogged 1 engine in my life.. and I have had numerous boats ( 2 strokes and 4 strokes) and motorcycles and "Summer Fun" cars.. The One I did was the wifes MGB..... because? I knew it would be YEARS........ before I cranked it over again..

i apologize, as i was wrong.found a good tech forum on all the warranty problems BRP had trying to get the bugs worked out of the e-tech technology.as you guys stated there is no oil being injected with fuel into the combustion chamber (the main cause for all the warranty claims for scored cylinder bores)and they do inject oil to the main and rod bearing locations as you stated.it appears now after the 2008 model line they have most of the bugs out of the system and reliability issues are decreasing to more normal levels.

Thanks Brian for the SkiDoo E-tec link. I've been riding Doos for 25 years and would not hesitate replacing my REV 800 Summit High Mark with a new a E-tec 800 Summit based on the great performance of my E-tec 60--however, they are real pricey and I'm saving up my $$$ to buy back into the market when the DOW hits 7,000

There's snow at 9.000' and I pulled the boat Thurs with ice on the deck, 29F. I fogged it on the trailer, in the water--took about 1 min with Sea Foam in the gas tank. By the time I finished securing the boat the air temp was 52--same as the water temp. Welcome to Colorado

Bob

Hey Bob -

What a blast the REV 800 must be! Might still make 100mph at altitude? Do you have to make changes for the thin air, or does the Rotax adjust automatically?

I ask because in the early 80's I had an SRX and a full set of interchangeable jets for the carb. Had to rejet (larger jets) at higher altitudes and temperatures, using the old "plug chop" procedure, or risk having the engine lean itself out into oblivion. Was a real nuisance, but it was a racing sled using the "high technology" of the day, and not a family tourer.

IIRC the E-tecs (outboards) will automatically adjust for altitude and extreme temperature changes, or did you have to change anything to run at 9,000'? Not so much in the way of altitude changes at this end of the continent, even if you go over Niagara Falls.

-Brian

Brian,
One of the primary factors for getting the E-tec was because BRP was able to offer a vastly superior snowmobile Rotax
2 cylinder 2 stroke engine that had an altitude compensating ECM that sensed barometric pressure, humidity and air temp. We had one basic main and idle jet that would compensate for altitudes from 5,000 to 12,000 and another jet for sea level to 5,000' Since these are Mikuni carbs we can still fine tune the mid-range needle jets.

The mixture is adjusted via a vacuum device attached to the float bowl which leans out the fuel as altitude/temp changes while the ECM changes engine timing according to engine loads and detonation. This system is still being use on current Rotax 600/800HO and R engines--since 2004 with subtle improvements in ECM and exhaust port RAVE valves that adjust the port exhaust for max torque.

The E-tec OB is fully altitude compensated--nothing to change or adjust except indexing the plugs.

We also did alot of oil testing and found the semi-synthetics to be the cleanest burning and lest carbon building for a cleaner internal engine. I'm sure the BRP X100 oil contributes to the lack of smell and smoke.

The guys I ride with who have the E-tec report at least a 40% better fuel range, smoother/quieter power, and vastly superior oil consumption with NO SMOKE or stink (I can attest to that since I'm always following them). They are getting 153 HP @ 8,200 rpm from their 800 and I am at 136 HP--however, my real HP at 10,000' is calculated to be 33% less--or--85 HP. I also run a 153" X 16" x 2" powder track and the best trail speed I can get is 65 MPH--kinda like a 500 Fan at sea level

So my E-tec 60 is technically only putting out 46 HP @ 5,000rpm @ 8,000' with a 9 X 14 prop getting 15 knts empty ballast on a flat lake, no wind. I think the engine runs pretty strong as I have a few Merc BF 60 dock mates to compare notes with.

Now it's time for me to start thinking snow--wait, I still have some boat winterizing yet to do
Enjoy whats left of your summer-unless you're still sailing you're probably not think'n snow

Bob

Bob -all interesting.

We don't get the snow we used to here in the snow belt anymore. Or, more correctly I should say, it doesn't stay around all winter the way it used to (carbides and skins just won't last on pavement!) so I haven't had a sled for over 10 years now. Plus, the admiral didn't like coming home smelling like smoke (but that's really a thing of the past now). So we ski instead. Yeah, and believe it or not, we, up here in the great white north, travel south (about an hour into the US) to ski.

Not sure what you mean by indexing plugs regarding altitude on the outboard. You only need to index the plugs (and then to aim for one particular orientation) when you either remove or replace the plugs, regardless of altitude or other atmospheric conditions, right?
-Brian.

Brian,

Everything you do at altitude is more critical so we index our plugs on small engines to maximize ignition.

When I lived in N.J. we skied Vermont, upper N.Y. and Grey Rocks at Mont. Tremblant. I still remember being winter storm stranded in Watertown, NY on our way to Tremblant. Skiing in the rain in March prompted us to go west and we ended up in Lakewood, Co.in 1974, joined the NSPS (ski Patrol). I quickly learned how altitude affects everything you do. One beer at 8,000' had the same results as 3 beers at sea level. Back in the day when Malcolm Smith was racing and winning the Pikes Peak Hill Climb he jetted his Husky for 14,000' but started the race (6,000') with a full choke and adjusted the choke as he went up in elevation.

Sorry to hijack the OP,

Bob

One beer at 8,000' had the same results as 3 beers at sea level.

...and one Canadian beer equals to of our beers, so one Canadian beer at 8000' feet equals ???

Try 14,000' at the top of Mauna Kea. No beers has the same effect as six!

Catigale wrote:

One beer at 8,000' had the same results as 3 beers at sea level.

...and one Canadian beer equals to of our beers, so one Canadian beer at 8000' feet equals ???

6 you're Canadian , 1 if your Irish

Bob

Its a trick question, Canadians are metric of course...

Bob

Try 14,000' at the top of Mauna Kea. No beers has the same effect as six!

Or apply Martini's Law going below sea level; you don't have to drink anything either- every 50 feet you go past 100 feet (depth) has the same effect as drinking another Martini. But that really should fall under the "Fogging 'yer engine in the water" heading.

I've tried that in salt and fresh !! It's even faster than the ETEC!