no engine mods though.......i can't see how that tire will kill my mpg by 3 mpg........seems a little odd to me....oooo well.....regapping them tonight after work....

 

UPDATE!! check 1st page!!!!

finally got the plugs gapped today (just a summary of what i wrote on the 1st post...)

 

Cool, feel any difference in it with the plugs gapped correctly (other than idle and revs)?

 

dunno....haven't drove it yet......i will be out with it this afternoon when i get home.....

 

looks pretty easy to swap out. was it? i may get one?

 

awwww yea.....take out the old one and put in the new one.....only difference is were the plug wires go......and the Screamin' Demon comes with instructions on were they go....

 

Man, I must be impatient. A little part of me starts to die if I do not drive the truck within 3 milliseconds of finishing up a mod.

 

I can see 3mpg from that tire. My old topper stuck up slightly above the cab and the drag it caused took 4mpg on the highway from me. on 32s with no lift I could see 19.5mpg highway. Now with the lift and 33s I see about 14mpg highway. So needless to say I am interested in your results also. Especially since I am another 4.0 OHV guy

 

i usually am....but i had other things to do......i had to clean up from the all day Saturday modifation.......now when i get my X2 that will be a different story....

 

well the only thing i can see is that the tire will disrupt the air flow in the bed from over the cab.......remember Myth Busters? lol...


maybe the extra weight also....but i am about to lose more weight when i take out my sub enclosure this weekend.....getting rid of that and back to jump seats....

 

seat of pants progress report on the gap is: AWSOME throttle response....faster pickup and better acceleration....

 

and a hella drain on fuel economy....



edit:*opens eyes and reads entire post*

Hmmm, maybe something to look into for the 'ol sohc? She could use a lil pep in her step...

 

that gas mileage loss doesnt make any sense! i'm assuming with a wider gap and stronger spark, you should be burning more efficiently and gas mileage should go up?!

i can't imagine the tire causing a 3mpg loss... unless you do strictly freeway driving, and even then it seems like a lot!

 

bout time you wake up.....dont be using the job to say you weren't paying attention lol......

 

i think it might have been the miss in the engine....i now have that fixed.....

 

so is it the thing > the $80 and installation time?

 

is it worth it? yea i say so......install time took Scott D. (big04ranger) about maybe 10 minutes tops to install it...

 

ya it was about 10 minutes.. somehow got 2 wires backwards the first go.. and that after the fact that i had to figure out why the plug would not go all the way on.. removin the factory lil seal thingy fixed that

 

yup......did a darn fine job installing her too!

 

So you still wanna sell that truck? I could use a beater

 

ahh thats PRICELESS right there

 

you couldn't afford it

 

This coil pack is next on my list... waiting on the tax return. We'll see how it impacts a mostly stock 4.0.

 

Ok so I have a question, did you keep your old plug wires and stuff too? Mine have about 37k miles on them and I really want a coil pack and I would gap my plugs to .065 too.

 

It's not going to impact it at all. You should hold off on a new coilpack and save a little bit more $$ and pick up a chip/tuner. Then go from there.

Unless you have already done some mods to your 4.0L that have resulted in a substantive increase in compression ratio, then there is no reason at all to tinker with the stock EDIS ignition system. It is more than robust for what you have.