Another CAI question

3tspapat · February 27, 2019

23 hours ago, Nitrousbird said:

How would a CAI improve your throttle response? There are only three things an intake "could" do and many don't:

- Reduce the restriction of flow

- Lower IAT's by either insulating the charge pipe from engine heat or pulling from air more directly from outside the engine bay where it is cooler, resulting in more dense air

- If a ram air setup, possibly forcing air into the motor at speed (which would also help the above). There are very few true ram air setup out there and few are actually effective.

If you look at the CAI's for these trucks, none are insulated or pulling air from a different source. At best they are providing a less restricted path. This may improve WOT power but throttle response is controlled by the ECU.

Think of a truck carrying a load of 1000 lbs. vs a truck carrying a load of 200 lbs. Which one would feel like it moves/accelerates faster, feeling lighter and having perception of a better throttle response?

Nitrousbird · February 27, 2019

Just now, 3tspapat said:

Think of a truck carrying a load of 1000 lbs. vs a truck carrying a load of 200 lbs. Which one would feel like it moves/accelerates faster, feeling lighter and having better throttle response?

And please explain how a CAI would do any of this. Not bullshit seat of the pants crap, but an actual improvement of HP/TQ when not it WOT situations.

ECU monitors airflow and adjusts fueling accordingly. Only at or near WOT, where the intake could be a restriction, would a benefit be seen. Anything else is in your head to justify the purchase.

3tspapat · February 27, 2019

Glad you asked!

The truck now weighs less because your wallet size has decreased in weight because you just blew all this cash on a CAI...so it's more responsive on an infinitesimal scale.

I have one...but I know it doesn't do much if anything at all for a stock motor, no tuning, etc. I like the sound it makes when I accelerate hard, which is like 2x per 300 miles because that is how I like to drive. Do I feel like I wasted my money? totally!

kennerz · February 28, 2019

Les restriction makes a difference, been proven over the years over many platforms. Don't understand why you guys argue about it. Now Silverado/sierra aftermarket intake design that is a different argument, most designs don't work very well. That said the well engineered ones work. Just most trucks will need a tune to maximize.

I would fix the inner lip on the throttle body first. Also dump the factory cat back. Open intake/open exhaust with tuning is the basic foundation of engine modification, that is sound practice not some kind of snake oil. You choose lame products that don't work or don't do all the mods needed to get a noticeable result it's your fault. These trucks wake up with the right mods. Just throw on K&N filter and a flowmaster - ah no. Takes more than that.

ford5of5 · February 28, 2019

I always upgrade to chrome valve covers first. They're always good for another 5 hp.

Chev-mekanik · February 28, 2019

Make sure y’all use the supplied window stickers for full performance!

SquireSCA · February 28, 2019

Well at this point I have:

Made straight pipe from the CAT's back. No restrictions, no muffler or resonator.
K&N high flow air filter(minimal oil applied so as not to mess up MAF)
Airaid MIT
SuperChips Flashpaq F5 with 91 octane Performance map, trans optimizations, 20% throttle sensitivity added

I am not that far from Vengeance Racing... I could always book some dyno time to see how the power curve and AFR is doing, and have them custom tune it if needed...

Jacoby · February 28, 2019

Put a truck with no CAI on a dyno then install a CAI on same truck and run it on same dyno and the run with the CAI will show more hp/tq guaranteed. Doesn’t matter if it’s not enough to feel, all that matters is there is an improvement. Combine that with a tuner and a less restricted exhaust and it will definitely make more power then if you just tuned a stock truck with own intake and exhaust.

Denali34 · February 28, 2019

1 hour ago, SquireSCA said:

Well at this point I have:

Made straight pipe from the CAT's back. No restrictions, no muffler or resonator.

K&N high flow air filter(minimal oil applied so as not to mess up MAF)

Airaid MIT

SuperChips Flashpaq F5 with 91 octane Performance map, trans optimizations, 20% throttle sensitivity added

I am not that far from Vengeance Racing... I could always book some dyno time to see how the power curve and AFR is doing, and have them custom tune it if needed...

That's awesome you live so close to Vengeance. I live in Social Circle, GA. They are doing my Whipple Supercharger on March 18th (made the appointment in December and that was the earliest available.) They are one of the best performance shops in the US.

SquireSCA · February 28, 2019

23 minutes ago, Denali34 said:

That's awesome you live so close to Vengeance. I live in Social Circle, GA. They are doing my Whipple Supercharger on March 18th (made the appointment in December and that was the earliest available.) They are one of the best performance shops in the US.

Yeah, they are like 20-25 minutes from here.

Denali34 · February 28, 2019

22 minutes ago, SquireSCA said:

Yeah, they are like 20-25 minutes from here.

Love your bike pic. I had a 2015 Duc 1299 Panigale. They sure have refined them since then. Do you do any track days in Braselton?

SquireSCA · February 28, 2019

Just now, Denali34 said:

Love your bike pic. I had a 2015 Duc 1299 Panigale. They sure have refined them since then. Do you do any track days in Braselton?

Yeah, done several and I am signed up for another track day on May 4... Not sure if I will take the Panigale or the Aprilia... The Ape is faster and has better electronics, but the Ducati is better aero and more set up for track riding... probably less work too...

Denali34 · February 28, 2019

2 minutes ago, SquireSCA said:

Yeah, done several and I am signed up for another track day on May 4... Not sure if I will take the Panigale or the Aprilia... The Ape is faster and has better electronics, but the Ducati is better aero and more set up for track riding... probably less work too...

I did a couple N2 track days there last year. Thinking about signing up for the one they have on 06/06. I already have track plastics on my S1000RR and Metzeler Racetecs RR and will probably keep them on till then. Sorry to derail your post. Good luck to you and nice bikes.