Mountains

[Melbo]

We derate furnaces at 4% per 1000 ft or down into 80% at 5000 ft and 32% down leaving 68% at 8000 ft.  You can do the math for 12000 ft.  Now that is just how much we cut back on the fuel supplied to keep it burning properly.  I don't know how that translates into power loss for a vehicle.

Something to ponder before you head that direction.

Melbo

[windtrader]

I'm so excited - an ON topic answer. We must be all experts at taking a topic into the dirt faster than anyplace. lol

[luvrbus]

I'm so excited - an ON topic answer. We must be all experts at taking a topic into the dirt faster than anyplace. lol

Same principal it is the fuel to air ratio,I remember changing jets in the carbureted engines for altitude changes or you had a dog now electronics do that for you 

[Melbo]

Gotta adjust the carbs as you climb BUT they always love the flat land.  I'm looking forward to driving my gas powered carbureted GMC to see how it does from Pie Town NM to Davenport Iowa.  I'm not sure I would want to take it into too much altitude.  10,000 feet could test my confidence. 

YMMV

Melbo

[chessie4905]

Ford used to have Denver heads for some of their cars. They provided higher compression ratio to deal with power loss at high altitude.

[luvrbus]

Sonja's van with a Onan has a adjustment dial on the carb you need to set when we go from the valley to Flagstaff or it won't make coffee 

[chessie4905]

No instant for her, eh.😊

[luvrbus]

No instant for her, eh.😊

Nope she doesn't drink coffee of any type

[chessie4905]

Oh, no instant for you.😉

[Van]

No power? No Kurig lol!

[luvrbus]

No power? No Kurig lol!

That's right Van

[Jim Blackwood]

Hope you don't like your coffee hot if you're headed to Denver.

Jim

[Lin]

As I remember it, there is roughly a 1% hp loss per 300 feet of altitude, so that would be about a 20% drop at 6000 ft.  Definitely would be a good idea to disconnect the toad and drive it separately if you can if you are doing a 10,000 ft pass.

[dtcerrato]

As I remember it, there is roughly a 1% hp loss per 300 feet of altitude, so that would be about a 20% drop at 6000 ft.  Definitely would be a good idea to disconnect the toad and drive it separately if you can if you are doing a 10,000 ft pass.

Lol, in lots of places we've had the bus we'd have never made it there without the toad - tow barred to the bus that is - yes, over the years more than (young & foolish ones) than now the wife and I have that drill down pat - goose the bus with the toad & that included break downs - toad has been a bail out while hooked to the bus. Not so much on our brake burn a couple years ago on the Icefield Parkway - wish we would have disconnected the toad prior, but sice then decreased our toad weight from 7000 to 4000#s and added supplemental toad brakes.

[freds]

Remember the show ice road truckers? They had a few episodes about pusher trucks to help loads up the hills.

Let's see now; I would like like a Tesla cyber truck as my toad, with remote control to help push LOL!!!