What was the HP difference in the 2? Hate to google that. 15hp seems easily reached with CAI and factory tweaking.

 

yup - 315 vs 300. so obviously Ford didn't go over the top with a perf tune.

 

Nah and wheel hp translates into about 10hp if you're lucky. Just guessing but the CAI would be good for maybe 5hp with a tune for another 10. I'm sure 330-340 is easily achievable with a custom tune.

 

(330x.85=280) Sounds right. That's what this guy got on the dyno with his performance tune and CAI. (GT w/6250redline)

First I stared with the car completely stock with the stock airbox and stock tune and made a surprising 269 rwhp and 285 rwtq, this is actually a little high but for a stock tune it is what it is. Most make 260-265rwhp and 280-285 rwtq.

Next I installed the Bullitt intake and my high octane tune adjustments and set the a/f around 12.7-12.9 and it made 280 rwhp and 305 rwtq at best, it made a few lower Hp numbers but these are the best.

Finally I reinstalled the C&L Racer intake and used the EXACT same tune as far as spark timing and commanded a/f goes and we made 288 rwhp and 308 rwtq.

 

That makes a lot of sense there. Seems right about where I was guessing. So how the hell did this thread blow up then?

 

tbone got a wrench up his butt. Nobody claimed the CAI made 50hp - but he argued they didn't do much of anything. I stood on 15hp with Bullitt's CAI.

I said this and he didn't comment but went on arguing:

 

He needs to stop putting things up there. Even if it is greased.

 

iirc he argued against this too - that the cai changed a/f

 

A CAI may change the turbulence in the MAF. My tuner had to spin my MAF sensor tube a few different times until it read correctly. Then he marked the position with white marks just in case I ever removed it. Took him a few tries to find a good position for the sensor to read correctly. I'm pretty sure this would have taken care of a lot of that problem also.

 

Even if it was manufactured as an assembly with the cai?
I'd like to understand this stuff better.
Thought it was interesting how you said the O2's were mostly about protecting the cats.

 

Unless it comes as a set with line up marks, the turbulence will be totally different in that air tube at certain points. Those funny looking stock air tubes are designed the way they are not just to be flexible. Turbulence helps the MAF read correctly. CAI cuts way down on Turbulence and a straight shot CAI tube will have much less which will be hard for the MAF to read anything.

 

hmm... then I wonder what the 2 baffles on the factory Bullitt intake tube (FRPP aftermarket doesn't have them) does to turbulence? And if the air is tumbling early on, I'm surprised they retained the CMCV's in Bullitt.

If the open element CAI didn't add any hp - the tune did it all, then Ford should have just said that. Because no doubt the open element adds to the exhaust tone they were trying to mimic from the movie soundtrack - plus baffles, plus unique h-pipe, plus GTB's, plus packed tips.
It definitely provides two different tones. At idle and above it has that nice mellow glass pack sound like the GT390 in the movie. But above 4k - esp above 5, when you go on and off throttle, it sounds more like the GT40 dubbed in when he was chasing the Charger. Maybe the open element was all about the tone and not about hp?

 

If yours does have baffles inside, I'm guessing that was designed to help the MAF read correctly. The larger tube and open filter will help the sound and allow less restriction. Colder air is always a plus too.

 

they hang down below the tube and between the maf and throttle body. some guys took em off and plugged the holes and said they couldn't tell any difference in sound.



https://themustangsource.com/f669/08...7/#post5472174

 

I'm sure they serve a purpose. Otherwise it would have been a lot easier to make a straight tube. Lots of engineering that's way over my head. But then again, engineers do stupid things sometimes also.

 

I had to clock my MAf also in the end I changed the elbow to a different design ( the bend wasn't has tight and short going into the MAF ) and it fixed my issue and I was able to put it back to stock location. wow this thread is still going. 20 hp