Pseudomaniac

iTrader: (1)

Takeda Cold Air Intake

09 SH-AWD Auto

Previous Average
26 MPG HWY
20 MPG City
23 MPG Mixed

After Intake
29 MPG HWY
23 MPG City
27 MPG Mixed

I've seen all highway averages as high as 32.4 MPG after 20 miles, and mixed mode driving as high as 30MPG. I am admittedly paying more attention to the MPG than previously, but I do believe the intake is good for 2-3 MPG.

Driving Method = Easy throttle, paddle shifting and keeping tach under 2k as often as possible. Max speed 70mph or so.

GoosedTL

Dude this is great, thank you for taking the time to actually pay attention to this.

Pseudomaniac

iTrader: (1)

I have a pre-order in on the PCDs, and will be doing the J pipe and test pipe at the same time. Will do MPG on those as well (have hopes of 35 MPG highway averages).

prepreludesh

Don't forget the "law of diminishing returns."

There is a limit to how efficient this engine can be and when I recorded my HWY MPG numbers, they improved with the J-pipe, Intake and test pipe, but the numbers won't improve much more. I'm sure the pre-cat deletes will help too, but I don't see this engine getting much better than 30MPG if that is possible in the first place.

I was doing city driving the other day when it was EXTREMELY windy. Driving with the wind at my back was netting me 28.7MPG in the city! As soon as I turned around and came back home, it dropped dramatically to 23.8 by time I pulled in the garage.

Never underestimate the wind's ability to help push our big-ass rear end towards better fuel economy when you're testing!

Pseudomaniac

iTrader: (1)

It's the hills here. I live in Kentucky, south of Cincinnati. There's about a 4 mile stretch of expressway that's all downhill to the river, and then the return trip - it's a good 30 degree grade of hill for the same 4 miles. If the fools that make the commute daily would learn to put it in neutral like I do and just coast down the hill at 65, I'd probably average another MPG or two, but everyone wants to get on and off the brakes and do 35-40.

Tyresian

Heck that gas milage alone sounds good great from the improvements! More power and better milage really makes me want to start some mods... Still a little afraid to do it, but with the exhaust mods atleast there isn't anything that can really have a negative impact to the car. Really will need to get the HFC Precat, then probably J-Pipe and HFC 3rd Cat. I'm still leary on the intake.

Pseudomaniac

iTrader: (1)

I had a fully bolted CL 6 speed with lightened fly, I-H-E, spacers, thermal gaskets, and pulleys. I could get close to 40 mpg highway when short-shifting. Taking into consideration the additional factors (weight, automatic, AWD axles, additional displacement) - I think 35mpg is attainable as long as the fuel logic on this ECU is similar.

prepreludesh

Remember, that if you just put the car in a lower gear (applies to manual and automatics) then no fuel is consumed in the combustion chamber. But if you put it in neutral while going down the hills, you're essentially burning the fuel equivelant to having the car idle. Granted, it's not alot, but every bit helps.