[CaysE]

Who cares if hood is open or not? At 90mph there's TONS of air under the hood, all three tests were done the same way, and you can't exactly go zooming down the strip with a dyno machine in the back seat now can you? Moot point, Tom.

What DOES stand out to me though is the big difference in AFR between the three, which says to me that the only tuning done was with the CAI, and then you ran the other two tests without tuning for them. That's what makes this comparison somewhat unreliable. The green (I'm guessing this is with the airbox removed) and red (CAI) lines are practically the same above 65mph where the AFRs are mostly the same. Torque is higher for the CAI because the AFRs are different below 65mph where the torque lines diverge, and the only reason you see a 5hp gain with the CAI is because the tuner didn't crop out the little jump in the graph when he let off the gas at redline.

Bottom line: inconclusive. The CAI is what you tuned for, so that's where you made the numbers.

 

[CaysE]

Typical... I post something that makes sense and everyone shuts their mouths.

 

[CaysE]

Tom, you're not reading the dyno sheet correctly. 003.drf (the red line) is the cold air intake, which doesn't show "a little down on the dyno" anywhere; it actually shows the highest numbers. If he ran the test with the hood down, 002.drf (green line, no airbox) would drop, but it's not going to affect 003 much, if at all, leaving the CAI still with the highest gains. You're arguing that a short ram would show worse numbers, but that's not the point... the OP is saying his CAI showed the best numbers.

The reason your point IS moot is because he only had the car tuned for the CAI. Look at the AFRs... the lack of airbox is showing the leanest numbers, which means it's taking in the most air. The CAI is in fact struggling the hardest to get air into the engine, which means if all three intakes were actually tuned for, the CAI would come out with the lowest power numbers. This entire comparison is thrown out the window based on that, not because of the stupid hood.

 

[CaysE]

You have no idea what you are talking about cayse..... Why do you always think your the smartest dude out there....











hahaha jk. yes it makes some sense. I on the other hand didnt care about this so i never posted haha.

Listen, just because you're faster than all of us with a JRSC doesn't mean you shouldn't care. LOL [hihi]

 

[CaysE]

No a leaner # does not allways mean its taking in more air AND a leaner enging allways makes more HP , what this dyno does not show is the heat factor with hood closed under normal driving conditions , close the hood and get the IAT numbers up where they would be and my bet is you wouldnt have a lean condition BUT would be down on power from the dyno posted from the heat

Tom

The OP ran these tests WITHOUT TUNING FOR THEM, except for the CAI. It doesn't matter if the hood is open, closed, removed from the car, or bashed over your head.

But to carry on your tangent, IATs aren't an issue when going 90MPH; this is fact. There is WAY more air getting into the engine bay than having the hood open on a dyno machine. SRIs get heat soak when sitting in traffic, not doing third gear pulls to redline. Which blows my mind to be telling you because you used to argue this very point all day long.

 

[CaysE]

LOL , your funny , I am guessing you have never tested this and your argueing with some one that has

Where do you think that 220 to 240 deg air goes that goes through that raid , that blows over the 650-800 deg Exh manifold then blows over and around thr engine heating up the air that a short ram sucks in

With the hood open and the dyno fans not hardly enough to blow your hair the heat does not make it to the short ram on the dyno so the air going into the intake is much cooler then with the hood closed and moving

Tom

If I could find the line graph image that's been floating around the forums lately, I'd post it, but I can't find it for my life. It shows IATs not an issue under the hood only 20-30 seconds after starting to drive from a stop. I'd be happy to see your data too if you'd post it.

In any case, you're really confusing the heck out of me with this one:

No a leaner # does not allways mean its taking in more air AND a leaner engine allways makes more HP

Cause you posted this in another thread:

All of the intakes I have tuned so far have changed the AF a lot , this may be causing the issue , any time you change the bends before or after the MAF (ones close to it) or the size of tune the MAF electronics go in a tune is a MUST or you will be running leand and could see/feel a performance drop (may be what this guy is feeling) and a lean condition can hurt your engine...

from here:
http://www.focusfanatics.com/forum/showpost.php?p=2979354&postcount=18

So is running lean a performance gain or a performance drop? And how does a leaner A/F with no tuning not equate to more air in the engine? A/F means air/fuel ratio, doesn't it?

he stated in the first post he was just using the ford racing bbk tune.

so why are people arguing?
about temps?

This still holds true to my point then... the BBK tune just happens to work well with the CAI. No tuning was done for the other two setups and look how lean the engine's running in the low- to mid-range.