For the record, Cat is rated to the flywheel just like Cummins and Detroits.

Originally Posted by chr284broo

And exactly what rpm is that and i bet its not much of one cummins is garbage compared to cat at any rpm remember cat is rated at the ground. cummins is rated at the flywheel and a pipe dream

All motors are rated at the flywheel at the factory. How can you accurately rate an engine through the losses/friction of the gearbox, drive shaft, rear ends and wheel bearings?

Originally Posted by puncher

Years ago when Cat was first building truck engines, they were rated to the tires or wheels, don't remember when they changed to the flywheel, possibly when they changed from the 1693 to the 3406.

I think you are correct.

Mack rated there motors to the ground. Atleast they used to.

Originally Posted by SHC

Did they even teach you math in Mexico before you hoped over here?? Aparently not.. let me give you some schooling.

First off, I will be much farther than HALFWAY home.....

You drive 70mph for 300 miles, stop for 30 min to eat, then go another 400 miles and get home. You are averaging say 5mpg. Your run took you 10.5hrs total and cost you $560 in fuel (@ $4 a gallon) for the day. Now you do this 5 days a week per say for a total of $2,800 a week in fuel and 52.5 hours on the road.

I drive 60mph and do the exact same things as you and get 6mpg in my truck. Now my day is 11.7hrs long and I spent $468 in fuel. Now add that up for the week and I worked 58.5hrs on the road and $2,340.

Don't you feel that the $460 you saved in fuel is worth the 6 extra hours you worked??? That's $77 an hour EXTRA you saved.

As for your trucks going 90, your point is completely retarted as the speed limit is 55 in California and also if you want to go 90mph everywhere you go, expect to see 2mpg at best.

I do stay in the left lane and out of everyone's way, I am not a company driver and if we really wanted to I would put my WS against you turd any day there cheif. So when you blow by me in your Volvo with it's superior cummins, i will still wave at you when smokey bear is cuffing your ### and while your sitting OOS in the local jail for endangering the motoring public going 90mph, I'll be going the other direction.

I think you are probably one of the most arrogant posters to grace this site in a while and when your truck is up for sale at the repo auction, I will gladly buy it for 1/3 of what you paid with my extra $400+ each week I'm saving and set it on fire

Your math is off. If he drives 300 miles, stops for lunch, and drives 400 more, that's 700 miles.

You can't legally drive 700 miles in a day at 60 mph.

So, what he can do in 5 work days, it takes you 6 work days to complete.

So while he's sleeping at home in bed each night, you are sleeping in your truck. While you're sleeping, you'd like to be comfortable, right? Well, if you idle for heat or AC, there's a gallon per hour, or at $4/gallon, that's $40 for a 10 hour break. 5 nights per week, and you can knock $200 off the difference, so you're down to $260 in fuel savings by running 60 instead of 70.

He's eating home-cooked meals with his family, while you're eating at the truck stops. A home cooked meal will generally be around $5/person to prepare. You're probably spending at least $15 at the truck stop...so there's another $10/night...$50/week...so now your savings are down to $210/week.

Morning coffee? $8 buys 270 cups worth of coffee grounds ($0.03/cup), and the water comes from the tap. You're paying $1.25 or more at the truck stop 6 days per week. So there's another $7 and change.

So now your $77/hour number is down to $33/hour for those 6 hours.

But, you're buying your lunch every day, where he can brown-bag it. That $5 foot long sub with the chips and drink you're getting at the truck stop is running you another $7/day for 5 days, where his lunch costs him mere pennies.

Better make that $27,50/hour.

Not to mention, when he's home, he can take care of minor repairs to his truck on his own, finding whatever parts and pieces he needs at local stores for reasonable prices...whereas you are stuck at a truck stop, with whatever tools you happen to have with you, paying whatever price the truck stop charges you for the parts & pieces.

Then there's the things you just can't put a price on. He's at his kid's ball game, while you're on the road. He's got his wife next to him in bed, while you're all alone. He gets to kiss his wife & kids goodbye each and every morning, you just get to get up and drive.


I'll drive the speed limit, covering as much ground as I can each day, to get me home as quick as possible. I work in order to make enough money to allow myself the opportunity to spend time at home and with the people I care about, doing things that interest me. If not for that time, there would be no reason to work.

Originally Posted by Les2

I think you are correct.

Mack rated there motors to the ground. Atleast they used to.

My truck was 8 years old when I bought it. Dyno'd 440HP at the rear wheels, which isn't bad for an E7-460.

Originally Posted by SHC

The reason they are quoted at the flywheel is due to the fact that they all decided some time ago to make it the responsiability of the TRUCK manufacturer to add the accessories and so to the engine, thus changing the actual HP to the wheels between 2 trucks with the same motor/spec's

Mack still rates to the ground if it is equpiied with a Mack motor... at least that is what their recent ad claims for the E9 Pinnacles

I was unaware Mack ever put the E9 in a Pinnacle.