2.5 L vs 4L

[fido]

What's the difference? Yes i know power but how much power? I'm lookin' at YJ's and am deciding between the two... I'm going to throw 35"s and prolly a 6" lift... 4-6 What ever I feel after i get it.. And Im curious how much of a power difference/gas mileage difference there is between a 4L and a 2.5L.. I'm gnona have to drive to school in this jeep and there's no Huge ass hills here... No rock climbing either cuz im in florida So I dunno what I"d best to buy..

ANy help is awsome! Thanks

 

[Green97TJ]

Just a personal experience. Ive got a 4banger auto, my brother has a 6 with a stick. He gets better mileage then me. Yea i know the automatic is what kills me, but i think even with a 5speed i wouldnt do much better.
Next idea. I could be wrong, but i would venture to guess that with that much lift and that size of tire, the extra power of the 6 would be a huge help. Yea yea, i know you can gear a 4 to make it turn them, but then you lose your highway speed, which you'll want if its a daily driver.
So just my honest opinion, go for the 6

Nathan

 

[fido]

Awsome thanks

 

[far_right]

if you have the choice, the 4 isnt even a choice

 

[Tug-n-pull]

I had a 4 banger and after a small 4" lift and some agressive 31's I completly lost 5th gear on the hwy. Lost milage and lost power at the top end. I now have a 6 and it has more power and more of a power band in the higher rpms.

If I were to want a daily drive 6 would be the end of the conversation. But for off road in the type of trail riden I do the 4 banger was so sweet. Never seen any reason off road to have any more than I had.

Go for the 6 if your jeep will be you daily drive, then again we never got into the V8 side of life! hhehehe Tug

 

[Snitty]

i think case is closed

 

[Bounty__Hunter]

Both will be dogs if you install large tires and don't regear the axles to compensate for the height and added rotating mass.

It's all in the gearing, and a little in HP

 

[Green97TJ]

i realize you'll have to re-gear either way.... but you shouldnt need as low as gears with the 6 as with the 4 (all other factors being the same) So my point was, you should be able to turn less rpms with the 6... therefore better mileage.

Just my thoughts

Nathan

 

[Mxpx182lit]

go with the 6 and then if you still want more, how does a vortec supersharger sound?

 

[jhiggins]

GO WITH THE 4.0 No Comparision....