[09wingates]

I just put a new set of 31x1050x15 Federal MTs on my XE this morning. I was concerned about how much power would be lost with the extra two inches being added to the tire size. After driving it a little bit I can notice a little bit of a difference in power but nothing drastic. The one good thing that I did notice was the fact that my ride was way better especially off road. Plus the truck sits a lot higher which is much better. Is there anyway in which I can get my lost power back? I thought of getting a K&N air filter but I dont know how much that would help. If anybody has any ideas I would sure like to hear them. I also was curious as to how much my gas mileage would go down. As everybody knows when your in college you dont have any extra money.lol

 

[NISM0]

I think the biggest differance you are feeling is the change in gear ratio out of the hole.

 

[09wingates]

What do you mean by that exactly? I think I follow you but I just want to make sure.

 

[NISM0]

What do you mean by that exactly? I think I follow you but I just want to make sure.

This question is out of my league, but this link will answer all your questions.

Gearing Up for Taller Tires! · Superlift · www.superlift.com

 

[Deerhnter22]

A cold air intake will help a good bit. I put a Volant CAI on after I put 285/75/R16's and I got a lot more throttle response and my gas mileage went up about 1.5 MPG.

I found a used one that another clubfrontier member was selling and got it for $150 which was half the price new

 

[09wingates]

I wish I could get a cold air intake but I have the little 4cyl 5 speed so that ruins that idea. I have seen some guys on here make a custom CAI for there XEs but I havent really had the time to do it yet. I am thinking of down grading to 30x9.50x15 so I will get some power and gas mileage back. I may see what kind of mileage I am getting after this week and then go from there. I hate to down grade since the 31s look bad A.lol

 

[Zero Six LE]

The easiest way to get it back is to put the original wheels and tires back on. If you want to play, you have to pay. If you gain something here, you will lose something there.

 

[justynissan]

Did you have to put a lift on the truck to fit 31s?

 

[Jordo]

Stock size tires 265/70/16 is a 31 inch tire.

 

[frontyfan]

he's an XE.

 

[09wingates]

Ya I put a 2" leveling kit on the front and I ordered 1.5" blocks for the rear from PRG. Stock tires on an XE are 235s, now on the 4cyl automatic I think the stock size is 265s. Anyway its actually not as bad on power and gas as I thought. I have a 60 gallon diesel tank in the back for my dozer so its sucks down a lot more gas just hauling that thing around all the time.