Squeezing a few more mpg out of a mustang gt

[UltArc]

One thing I like to do in a place I can't EOC (usually small hills, or hilly areas) is to accelerate down hill and ease off the throttle uphill- essentially driving to keep MPG. So on back roads I will be doing 57-59 (in a 55, 1400 RPMs seems to be her sweet spot in 6th gear), and I will ease off the throttle up a hill (speed down, keeping MPG at my target range), and accelerate down the hill (keeping my target MPG range). So I may be doing low 50s to 55 by the top of the hill, and up to 63, 64, at the bottom.

I have followed the whole thread, but don't remember anyone mentioning this. Regardless, it may not be the most successful way to do it, but it is better than just cruise control.

[Arragonis]

Originally Posted by gk_ghig14

...Also dropped about 10 pounds off the front of the car(strut tower brace removed, sound tube removed, engine cover removed). Then I'll be dropping about 35 pounds off the rear when I take off the mufflers and install deletes

If you mostly drive on the highway or at least away from urban / suburban areas then weight loss is less crucial. That strut brace may also help you retain momentum on corners which can also help. If you want to lose the most weight then no spare and/or removing unused seats can save you more as can not running a full tank (although MPG is harder to work out running like this).

Originally Posted by gk_ghig14

Just checked tire pressure all were at 40 but my driver front which was at 55(tires rated for 51) so I let air out until it got to about 40

One tyre being out by so much - could that be another issue ? If mine were rated 51 I would run 45. Under-inflated tyres are more likely to fail than ones at the limit.

Just a thought how about doing a vid of your trip - nothing fancy, just mount a phone or a cheap £10 camera from ebay upload to youtube and we can see what you are facing. I put one on my thread here (Apologies for my poor music taste and it being winter here so dark).

[gk_ghig14]

For the grille block does it have to be on the outside or can it be on the back side of the grille?

[jeff88]

The grill block is best on the outside, but some have reported minimal difference between inside and out. If you are going for that 'look', try out the backside and if it's not enough, then you can put one up front.

[Arragonis]

Outside is easier to remove if it causes cooling issues of any kind. Doubt it will but just in case.

[mcrews]

Originally Posted by gk_ghig14

For the grille block does it have to be on the outside or can it be on the back side of the grille?

If you look at the grille block in my sig link you will see a clear outside block.....
I did change to an inside block but cant find any pics

I used zip ties to pull it close to the grille.

[gk_ghig14]

Well looks like I may just do the outside grille block. An inside grille block would require removing my bumper and with my luck I'm sure it would get scratched or gouged.

Also ordered a tuner for my car which will allow me to fine tune the afr for better fuel economy and allow me to turn off the rear o2 sensors since I have deleted my cats

[mcrews]

Whyvejukdvu delete cats?

[gk_ghig14]

Sound, weight loss, performance. Car is now louder(love), about 20 pounds lighter, and once I throw the tune on it'll have about 20 more hp for those occasional nights at the drag strip. Also I think freer flowing exhaust=better mpg

[gk_ghig14]

Picked up some new wheels and tires yesterday which dropped a few more pounds of rotational mass, and the new tires are larger in diameter and stated to have lrr technology by Yokohama. And due to the offset of the wheels, I'd say 98% of the wheel/tire combo is tucked in behind the body work

Also should be getting my vehicle specific tunes within the next 5 days, so I'll be installing the fuel economy tune in hopes of squeezing out 1-2 more mpg in combo with the new wheels and tires

Will also be doing a grille block. Zip ties are cheap enough that I can do it on the outside for Monday-Thursday then take it off for Friday night car meets