Rear Mounted Spare - Page 2 - Fuel Economy, Hypermiling, EcoModding News and Forum

JeepNmpg2 · 12-05-2009, 04:29 PM

Since a lot of my Jeep is aftermarket, I'm designing most of my ecomods to work with those strengths. For example, I want to make a front air dam that is removable for offroad usage, but works over my aftermarket front bumper (hell take's advantage of the multiple attachment points it has built in). If I do it right, it may also funtion as a partial grill block too!

Air Dam Thread:
http://ecomodder.com/forum/showthrea...tml#post144830

winkosmosis · 12-05-2009, 08:12 PM

Why don't you just get a front skid?

JeepNmpg2 · 12-05-2009, 08:15 PM

The thought had crossed my mind, but that doesn't cover as much undercarriage and it's is angled down, vice to each side. I really don't know which would be better, but from what I've read, the dam sounds more efficient.

winkosmosis · 12-05-2009, 09:16 PM

The skid goes really low. It almost covers the differential on a stock XJ

Here is mine with 2" lift

winkosmosis · 12-06-2009, 12:43 PM

Unfortunately I have no idea what the difference is highway mileage is between the skid and the air dam it had before. Like an idiot I neglected to find a long straight stretch of road to let my SGII show mileage at a constant speed. Then again, it's pretty hard without cruise control anyway.

All I do know is that my average mpg has stayed the same, 16-17.

JeepNmpg2 · 12-06-2009, 03:33 PM

You know, mine did the same after the first two inches of lift... but I only noticed it when I realized one of my fuel injectors was going bad (could smell fuel occasionally from the front of the vehicle). Which meant that it was staying open too long or just leaking in the combustion chamber as I never could find the actual leak. As soon as the "fuel smell" started, so did some bouts of really strange mileage readings. Like I'd gone from tanks netting an average MPG of 20-24 to 14-18. Only once after that did I get something better and made it to 20 MPG again (just barely).

LOL, I feel so pathetic over here (in Iraq) making this little run on shopping list of things to fix/add to my vehicle and unfortunately the fuel injectors are not cheap and are on top of the list (cause you can aeromod your ass off, but without an engine in good tune, you might as well be.... well, I'll leave that to the imagination of the reader of this post).

Enough of my ranting, I was on here late last night, and need sleep

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