I have a 1994 T600, just turned engine up to 475 hp and 1650 tq. Eaton 9 speed, eaton 402 axles with 3.90 ratio and tall 22.5 tires. Best I have ever done is 7.2 at 60 mph. When I go 70mph I get just over 5 mpg. What am I missing. Final drive is .73
Oh so I am having a really big problem with feel I’m only get like 4 miles per gallon for the box trailer with the cat is there anything you can do to help me
When you were getting over 10 mpg your were only going 58 mph; when you were getting 7.8mpg you were going 75 mph !! Your mpg is all about speed - not rpm. You believe higher rpm will get you better mpg but you don't use your trans to get it - just go down a gear - in that 18 sp they are real close together.
Yes. I can run in high direct at 60 not split high and rpm at 1500 and get 7.2 if I split it it drops to 6.5 so yes speed is a factor but rpm is the key. 60 on two lane.
@@CATDADDYDIESEL I owned a 03 kw t600 w 3.55s and super 10 6nz 475//1750 setting avg no better than 6.3 avg hauling 48ft flat . Then I bought an 06 pete 379 w 475/1650 stock tune 3:36 & 18 speed pulling flat . Avg 5.5-3.5 mpg no bs . I never tried keeping rpms low. I thought sweet spot was 1350 rpm 🤦🏻♂️ . I ran it at 66 mph & 1325 rpms trying to save fuel . I tried taking to dealer to bump hp to max but since it was still under warranty they were asking $2500 to open it up . I got so discouraged spending so much on fuel I let that dang truck go . I wished i knew about the rpms trick . Ive never heard of a kwopper getting that mpg even empty. Good job there
I have a 1994 T600, just turned engine up to 475 hp and 1650 tq. Eaton 9 speed, eaton 402 axles with 3.90 ratio and tall 22.5 tires. Best I have ever done is 7.2 at 60 mph. When I go 70mph I get just over 5 mpg. What am I missing. Final drive is .73
6nz 18 speed 3.36 gears
I hauled some scrap over to Searcy today. Made some money. It was a good day.
Money is always good
Oh so I am having a really big problem with feel I’m only get like 4 miles per gallon for the box trailer with the cat is there anything you can do to help me
@@bobbykaralis7108 what trans do you have? What is the ratio of your rears?
it's easy to get good mileage on flat land. shit on the west coast with all the mountains I'll be down to 4.5mpg
True but I see trucks running the same load getting 4 to 5
Can you do a video about the setup of this truck?
I sure can
Welcome back!! Hope all is ok
What c15 is it ? Acert or single turbo?
6nz single turbo
When you were getting over 10 mpg your were only going 58 mph; when you were getting 7.8mpg you were going 75 mph !! Your mpg is all about speed - not rpm. You believe higher rpm will get you better mpg but you don't use your trans to get it - just go down a gear - in that 18 sp they are real close together.
Yes. I can run in high direct at 60 not split high and rpm at 1500 and get 7.2 if I split it it drops to 6.5 so yes speed is a factor but rpm is the key. 60 on two lane.
That gauge means nothing. What does the math say
Engine is 3406e 5EK
What hp& tq is it set at?
550
@@CATDADDYDIESEL
I owned a 03 kw t600 w 3.55s and super 10 6nz 475//1750 setting avg no better than 6.3 avg hauling 48ft flat . Then I bought an 06 pete 379 w 475/1650 stock tune 3:36 & 18 speed pulling flat . Avg 5.5-3.5 mpg no bs . I never tried keeping rpms low. I thought sweet spot was 1350 rpm 🤦🏻♂️ . I ran it at 66 mph & 1325 rpms trying to save fuel . I tried taking to dealer to bump hp to max but since it was still under warranty they were asking $2500 to open it up . I got so discouraged spending so much on fuel I let that dang truck go . I wished i knew about the rpms trick . Ive never heard of a kwopper getting that mpg even empty. Good job there
This is the worst advice I’ve ever seen. Don’t listen to this guy.
Keep your boost down and your mileage will go up.
Get to the point!
Better fuel, yeah, don't drive like a jagoff😅