If you have a DCI, you should get scoops.. read

marcvtec · 10-19-2009, 10:12 PM

Quote:

Originally Posted by usc335

I've datalogged IATs, and they drop significantly as you pick up speed. My car was parked on an 80 F day after driving and the IATs started at ~130F. Driving around the streets where I had to stop all the time, the IATs quickly dropped to ~115F. When I got on the highway, they rapidly dropped to ~100F. Unfortunately, I didn't do any datalogs before I had scoops, but I'm positive they increase airflow.

Can we see your datalogged IAT's lol cause I just can belive that they would drop from 130 to 100....seems like the scoops are very magical

Bagelfast · 10-20-2009, 12:11 AM

Quote:

Originally Posted by marcvtec

Can we see your datalogged IAT's lol cause I just can belive that they would drop from 130 to 100....seems like the scoops are very magical

30 degree drop is Def. possible. The N54 gets very hot and any air that is just around the engine that is not coming from outside the car directly to the DCI will be extremely hott.

Again, the stock snorkel does nothing when not combined with the stock airbox which when combined together create a pathway of suction from the end of the snorkel up into the intake track.

The stock system is not ram air you have to remeber, so when not pressurized it does nothing and is there just for looks.

With scoops installed, a large supply of air is being directly brought to the DCI via the stock snorkel, not only is alot more air being brought to the DCI but a ambient temperature of it is being brought there compared to udner hood temps.

Even 10mph in speed wil yeild more/cooler air to the DCI.

Saying it creates a large amount of power can be false.
Saying it creates more consistent and somewhat more power to allow the DCI to function to work to its full potential is def. a true statement that has something behind it.

Vudoo4u2 · 10-20-2009, 12:19 AM

Quote:

Originally Posted by 1LUMI335

Saying it creates more consistent and somewhat more power to allow the DCI to function to work to its full potential is def. a true statement that has something behind it.

based on? butt dyno? or people who have logged IAT with the scoops, but not without them?

of course IAT drop when you get on the highway, with the scoops or not, you are getting more airflow into the front of your car. this isnt some sort of aerodynamic cone slicing through air...theres a lot of airflow being directed at the front of the car...thats why your intercooler, your brake ducts, your oil cooler ducts, all face forward. they dont need a tube pointing at them to get air

Bagelfast · 10-20-2009, 12:35 AM

Quote:

Originally Posted by Vudoo4u2

based on? butt dyno? or people who have logged IAT with the scoops, but not without them?

of course IAT drop when you get on the highway, with the scoops or not, you are getting more airflow into the front of your car. this isnt some sort of aerodynamic cone slicing through air...theres a lot of airflow being directed at the front of the car...thats why your intercooler, your brake ducts, your oil cooler ducts, all face forward. they dont need a tube pointing at them to get air

Logic, butt dyno and the member above who logged IAT even though may not be a very good example i will try to get my own.

The example you listed as:

-brakes, which have rammed air ducts leading to the brakes
-Intercooler, is directly open to ram air and is directly in front of the car to open air
-oil cooler aswell has a RAM air duct that brings vast amounts of ambient air to it

There is no direct path of air that brings air to the DCI.

Even when going 80mph, with the hood closed there is minimal ways for air to go to the DCI, it is seal mostly around, and even when air is around the area of the DCI, since it is hidden to the side and middle/rear of the engine bay, it has already mixed with vast amount of HOT AIR around the engine bay before being sucked up into the DCI.

Scoops combined with the snorkel which leads directly to the DCI, as i mentioned not only will bring more air, but amibent temparture air.(which is cooler air)

I dont have hard data, but this logic alone is more than enough to justify its potential.

Like i said, it wont give you ALOT of power, but most def will add power through lower intial IAT along with more air at tap, but more consistent power aswell.
This is more of a on road performance ehancement as opposed to a dyno gloy mod.

I will try to log DCI without scoops and DCI with scoops on some 3rd gear pulls on the btcable soon.