He never said the engine was the same. Tucker is talking about the air intake box. Your expert articles you Googled are talking a racing intake manifold.

 

I too can't figure out how you improve mpg by upping hp??? To me that's like saying higher rpm don't burn more fuel??? Old school guy way of thinking. More power requiers more energy to produce, i.e. more fuel. Please someone educate me. lol

 

Yes, that is correct. And you can see the GT air-box in the picture. The racing
intake manifold was new for the BOSS 302. My point was that they are still using the GT air-box, and I don't think that is because they didn't want to make the effort to build a better air box or add an aftermarket CAI (Because they had an air-box on the shelf) after everything they did to redesign the engine to get another 32 horse-power. Just say'in

 

Well that wasn't really my question to Chris about the MPG increase on the CAI. To answer a part of your question though, you can easily save on fuel by making more HP. I get that. Just leaning the AF ratio to a still safe level will create more power and use less fuel. Also a lot of the custom maps that increase MPG will increase timing.

My question was that I hear a lot of people saying this CAI will increase mpg. I just want to know how it does that with the tuner shooting for a target AF ratio. If the intake flows better than stock my AF ratio will start to get leaner than with the stock box, so won't the tune start to add fuel to get me back to the target AF ratio?

 

Well, let's just ask this question first. Do any of you believe that there would be 302 Boss owners who would be looking for modifications for it to make it even better, faster, more powerful etc? Or do you believe the car is already as good as it can be? If you believe the latter, then the airbox along with every other piece of kit is perfect.

 

I like your way of putting it in perspective. Does a bear $hit in the woods?

Yes, if I owned a 302 Boss I would want it to be faster than any other 302 Boss. Stock sucks. Just my opinion.

 

Well, actually, my question was - Do you believe the Ford engineers would have done everything they did to the pistons, heads, valve-train, intake manifold etc. etc. of the Coyote engine and then "skimped" on an air box and lost another 5 to 10 HP?

I look forward to Tucker providing data to show the performance increase of the CAI on the V6. So far, he and Chris (AM) have not agreed on what adds what in terms of performance. I also am hoping to see the testing of four CAI's by Chris (AM). If people want to buy based on "pretty," I have no problem with that. I just would like to understand the real performance impact. Just because a 2010 V6 benefits from some hardware change doesn't mean - to me - for one minute that the 2011 V6 will benefit from the same change. Totally different engines. TIVCT is whole new game. If others don't care, I am fine with that. However, I think this Forum is a place to get data and facts - and not just opinions. I sure hope to see more data from Tucker

 

I'm not sure what you're getting at. Chris from AM confirmed that there are gains from using a JLT intake (10-15) and up to 25HP if used with a tune back on post 97 of this thread (thanks wrxified). That's fairly consistent with what JLT reported, so I'm not getting where you say there is a disparity. Chris originally reported earlier in the month there wasn't much in using a C&L intake, so that's why everyone was excited to see what the JLT did. The only thing really lacking at this point is Chris' dyno charts to see where the power is increased in the power band. The dynos from JLT are posted on their site, so I expect them to be similar other than differences in their tuning.

 

Throwing my two cents in.......there a guy in our club runing a blower, running almost 550 RWHP and if does not get on the pedal, at 65 to 70, he's logging 35 MPG, a convertible '08 GT. Now a 295 RWHP car dragging the same a 3600LB. car around, gets 28 mpg.....Shoulder Shug,,,,, Does more HP make it easier to pull that ride around, thus usiong less fuel?..just sharing...

 

There is a rumor out that Ford already is testing an "ECO-Boost" - turbo charged - version of the 5.0L (Coyote) engine. The rumor is that it is making 500HP and will be out next year in the Shelby GT500 and another vehicle. Ford says they get 20% better fuel economy then their equivalent larger engines. So they have a whole engine strategy on using turbocharged engines to improve fuel economy while producing significantly more horsepower with the same engine.