How much Horse Power do YOU need?

[radar]

Originally Posted by tuffr2

Too much power is a thing. I got to ride a PWC Seadoo 300 HP. I punched it and it scared me as I had a lot of trouble holding on the acceleration was so fast.

Then I read about the electric cars that do 0 - 60 in around 3 seconds. That is too much power. The Seadoo 0 - 60 was about 3.5 seconds I think. Yes, acceleration is crazy fast.

Look at the Tesla Plaid with an engine on each wheel. I think 0 - 60 is actually 2.8 seconds. That is too much power.

Motorcycles are also too powerful. I got to ride one on a 1100 cc that was scary fast.


Sent from my moto z4 using iRV2 - RV Forum mobile app

No. Tesla model S plaid is zero to sixty in 1.99 seconds, and that’s stock.

[hemifoot]

Originally Posted by radar

No. Tesla model S plaid is zero to sixty in 1.99 seconds, and that’s stock.

my son has the plaid. it's crazy fast off the line. want to pass 10 cars on a row? no problem. even my Tesla Y is crazy off a standing start and it's only a dual motor.

[radar]

Originally Posted by hemifoot

my son has the plaid. it's crazy fast off the line. want to pass 10 cars on a row? no problem. even my Tesla Y is crazy off a standing start and it's only a dual motor.

Yep. We spend the little extra on the model Y and got the AB (acceleration boost) option. It definitely kicks a&$ between about 30 kmh and 110 kmh and then it kind of returns to the original. Takes a second off the zero to 100 kmh. We thought it would be handy for towing our little travel trailer. It is totally unnecessary but way fun. Woohoo. .

[Rob_M]

To answer the OP. For me 430hp and 1260 lbs ft torque, Seems to be a good compromise for our 40’ DP, because I have a fat right foot and a lean bank account. Any more hp and I would probably like it too much, and therefore spend too much on fuel.

Wind direction affects my mileage more than land speed it’s self.

I have averaged from a best of 11+ at 75mph, to a worst of 7.5-8 at 60mph depending on whether I have a strong headwind or tailwind. If I can’t feel the wind, the boost gauge and mileage computer let me know how hard the 21 year old 8.3 Cummins is working. Never had any cooling issues, knock on wood.

[xc-mark]

for 27,000 lbs that is 13'-6 high to climb a 7% grade at 70 mph my right foot tells me that 450 HP and 900+ ft lbs is just about right.

[tuffr2]

Agree, the right foot knows.

[4x4ord]

Originally Posted by xc-mark

for 27,000 lbs that is 13'-6 high to climb a 7% grade at 70 mph my right foot tells me that 450 HP and 900+ ft lbs is just about right.

450 HP/900 lbft hasn't got a chance of towing 27000 lb up a 7% grade at 70 mph. 565 HP and 1400 lbft of torque might do it though.

[wolfe10]

Originally Posted by xc-mark

for 27,000 lbs that is 13'-6 high to climb a 7% grade at 70 mph my right foot tells me that 450 HP and 900+ ft lbs is just about right.

Sorry, but, why in the world would your goal to be able to run 70 MPH up a 7% grade????????


And as already posted, that "ain't close to the HP needed".


And, actually, the engineers/physicist KNOW better than anyone's right foot/seat of the pants.

[xc-mark]

Originally Posted by wolfe10

Sorry, but, why in the world would your goal to be able to run 70 MPH up a 7% grade????????


And as already posted, that "ain't close to the HP needed".


And, actually, the engineers/physicist KNOW better than anyone's right foot/seat of the pants.

I would say 4~ 5% at 70 mph is about all my truck would do with a dent in the floor. so my point is slightly more TQ would be nice. HP these new 3/4 and 1 ton trucks have more then you need. Happy at 70~72

[Daveinet]

Originally Posted by wolfe10

Sorry, but, why in the world would your goal to be able to run 70 MPH up a 7% grade????????...

There are some freeways that have 6% grades for long stretches with 75 mph speed limits. So yes it would be nice to keep generally up with the traffic. If your machine is designed for a little more than that, it is less likely to be over stressed or overheat in those conditions.

[saddlesore]

Originally Posted by tuffr2

You need to worry about HP or else you end up with a bulldozer. HP should be about half the torque number. 500HP with 1,000 ft lbs of torque would work for me. But HP could be 400 and still work nice.

Ummmm.. I think that I'll just keep My Old ISM-450 that's boosted to 500hp with 1550 ftlbs of torque thank you. Pls Note..I am a retired driver,, going up a 6%/7% grade I normally just loaf along at 45/55 depending on grade %. Hell of a lot easier on the equipment/better fuel mileage & I still pass a bunch of rigs.

[Alpine36]

Originally Posted by saddlesore

Ummmm.. I think that I'll just keep My Old ISM-450 that's boosted to 500hp with 1550 ftlbs of torque thank you. Pls Note..I am a retired driver,, going up a 6%/7% grade I normally just loaf along at 45/55 depending on grade %. Hell of a lot easier on the equipment/better fuel mileage & I still pass a bunch of rigs.

Yep, what’s the hurry.
“Loafing along” is what it’s all about anyways.
Even at 330/1000 I can still chug along at 40-50 up just about any incline/pass the west coast has to offer. There was a time not so long ago 300hp was the envy of most truckers. Things always arrived on schedule. Chances are heavy traffic has a better chance of slowing you down than most mountains anyhow.

Just smile and wave as you pass me, I’ll be about two minutes behind you.

[burgmark]

My 35 footer is about 32,000 lbs loaded and I pull a 5,000 lb Jeep Grand Cherokee with only 360 hp and 800 foot lbs of torque. I can typically pass loaded 18 wheelers up most grades, but no where near 70 mph. A little more hp would be nice sometimes but what I have is adequate.

[Gordon Dewald]

Too many here appear to have the idea that a 45,000 lb coach should handle and be driven like a 3,000 lb sportscar to ever come to a consensus.