dcher

According to Jim Hall, Halltech will be releasing a Ram Air system for the Z06 in about 3 months. I have seen a design prototype and it looks very exciting. It is designed to be added to the existing CAI and should produce a modest bump in HP. It will generate its incoming air from the front grill scoop on the drivers side and feed into the existing air box. It should be straightforward to install once the car is hoisted and the front right wheel removed. Jim has done some testing and it should be ready for sale in three months. I told Jim that I would not divulge any other details. Please contact him directly. Jim gave me the go ahead to share this exciting news. Looks like another great product from Halltech that will be a must have.

upcharger

heck yes!

SpunkyQ8

Subd'd

phantasms

Isn't that how it works in stock form?

RapidC84B

The stock intake already pulls outside air from the fender cavity. "Ram Air" is a myth on road cars. Air does not pressurize until you start going around 300 mph... works in airplanes. Gains from aftermarket intakes are from more efficient flow-path, higher flow filter elements, and most importantly a cooler source of air. The C7 already gets outside ambient air.

T/A KID

Did this about a year ago... I pull air from the passenger side z06 grill to the bottom of the airbox...
Uses a plastic black scoop and some flexible 2.5" tubing

PLRX

Im with this guy. My tuner told me there is not even a horsepower gain. A duct will not compress more than the supercharger.

dcher

According to Jim there are HP gains. It is still being tested so the numbers are not final. He is planning on providing details in the near future.

PLRX

How is this dyno test done?

dcher

My suggestion would be to contact Jim directly or wait for him to provide details on the forum which I am sure he will do soon.

DRLC5

I know a couple of tuners on here are offering some type of a Ram air duct modification? Just not sure exactly what it is?

PLRX

To have a close enough number, the tuner would need to replicate the desire wind speed on 4th gear at peak HP. On 4th gear running 6,200 RPM it's approx 143 MPH.

This one claims 200 MPH
http://www.homedepot.com/p/Homelite-...9523/203066588

DRLC5

^^^ I never said they were testing on the dyno? I just saw two of the bigger places on this forum that are offering a Ram Air Duct / Air Box Mods? Not sure what it is? Have an idea but not sure, Any cooler air coming in will help.

BJ67

The C7 gets its air from inside the fender well, in and around the headlight, seeps in from the hood hinge area and finally some from behind the right side of the grill which has a blockout there. Very little outside ambient temp air. The major issue is the air path is not a sealed duct from the right corner of the grill to the actual air filter. The suction area starts above the front of the rf tire, and heated air leaches in from everywhere. I have modified that path and get direct air from the lower rf grill opening, (lower block off taken out) pure outside air. My air filter housing is always cool to touch after a drive.

sTz

subscribing.

Steve Garrett

I wish he had one for the Stingray too.

ktoonsez

Yes I am with you on this. There is little to no air coming from pure ambient outside air. Perfect example is to let the car run in park for 15 minutes and log the Intake Air temp, it will quickly rise to well into the 130+ degree range with 60 degree ambient air. . Even when I am driving to work at 30-40 MPH the temp can rise to about 90 degrees with 60 degree ambients.


Bottom line I am very interested and will have to contact Jim about this to beta test . Hot IAT's are a horsepower killer.

Flyboy22

Skeptical, but will wait for some hard data.

BigJudy

I agree.

capecodvette

Reminds when back in the day, GM engineering figured out there is more consolidated air pressure at base of windshield, hence the introduction of "cowl induction" on the Chevelle SS (1970 vintage).