8 replies to this topic

[Sorny]

I did some research and from what I can tell is that the engine creats 123 HP @ 3600 RPM and 245 ft/lb @ 2000 rpm. As for MPG I wouldn't It could be anything depending on how well tuned up your engine is.

[Justshootme84]

engine specs

according to this chart, you should get about 120 HP and 250 ft.lbs. of torque from a 30I-6 that is properly tuned and running well. That seems like it's nothing by the numbers, but believe me, the I-6 can tow up to 15,000 lbs. and never grunt. As for gas mileage, average is about 10-14 mpg, but you need to see how far you go from one fill up to the next. 300 miles divided by 30 gallons is 10 mpg.

[Shadow_D]

To get the MPH is easy.
First if you have a "Trip Odomeater" just reset it when you fill-up. Then next time you fill your tank write down the miles (i.e. 152.6) then devide that by the gallons your truck took (i.e. 25.876) and the answer is your MPG.

• 152.6 Miles
• /
• 25.876 Gallons
• _____________
• 5.897 Total
• or 5.9 MPG

If you don't have a "Trip Odomeater" you just have some more math to do.
I am making a table that I will post later for all to use.

[Txquadhunter]

ratings gave above sound right. the 300 6 ain't a HP monster it's a TQ monster. the TQ is what you want in 4x4 bronco/truck. But if the cash is right you can build that 300 to blow the doors off most V-8's. do a search over the 300 you'll find lots of info bout it.

[Shadow_D]

If your motor, transmission, axles and transfer case don't show any signs of a leak then try switching all of the above to full synthetic oil but ONLY IF NOTHING LEAKS! If there are any leaks at all then the synthetic oil will only make the leak worse. You should get better MPG after that.