free ram air mod hypothesis.
Staging Lane
Joined: Sep 2003
Posts: 68
Likes: 0
From: Chicago, IL
Re: free ram air mod hypothesis. It's real simple. If you have a WS6 then the hood will work as a good ram air system if you seal the gap between the nostrils and the airbox (1-2" gap exisits). The BG ram air kit was designed to seal that gap and create a true ram air affect. You DO NOT want to do the FRA mod. This will disrupt the vacuum style airflow and downgrade your hood to a CAI instead of a RA.
So best way to do it for a TA/Formula is:
1). WS6 hood + BG ram air kit
2). FTRA/SSRA + FRA (you actually do this as part of the installation instructions)
Those will give you a nice ram air affect at higher speeds. If you don't ever want to get the BG ram air kit ($300) then the FRA mod won't hurt or help your performance. The FRA only helps if you have a non-WS6 or if you are going to use an aftermarket kit like FTRA or SSRA.
So best way to do it for a TA/Formula is:
1). WS6 hood + BG ram air kit
2). FTRA/SSRA + FRA (you actually do this as part of the installation instructions)
Those will give you a nice ram air affect at higher speeds. If you don't ever want to get the BG ram air kit ($300) then the FRA mod won't hurt or help your performance. The FRA only helps if you have a non-WS6 or if you are going to use an aftermarket kit like FTRA or SSRA.
TECH Enthusiast
Joined: Oct 2002
Posts: 553
Likes: 0
From: Long Island, NY
Re: free ram air mod hypothesis.
It's real simple. If you have a WS6 then the hood will work as a good ram air system if you seal the gap between the nostrils and the airbox (1-2" gap exisits). The BG ram air kit was designed to seal that gap and create a true ram air affect. You DO NOT want to do the FRA mod. This will disrupt the vacuum style airflow and downgrade your hood to a CAI instead of a RA.
So best way to do it for a TA/Formula is:
1). WS6 hood + BG ram air kit
2). FTRA/SSRA + FRA (you actually do this as part of the installation instructions)
Those will give you a nice ram air affect at higher speeds. If you don't ever want to get the BG ram air kit ($300) then the FRA mod won't hurt or help your performance. The FRA only helps if you have a non-WS6 or if you are going to use an aftermarket kit like FTRA or SSRA.
So best way to do it for a TA/Formula is:
1). WS6 hood + BG ram air kit
2). FTRA/SSRA + FRA (you actually do this as part of the installation instructions)
Those will give you a nice ram air affect at higher speeds. If you don't ever want to get the BG ram air kit ($300) then the FRA mod won't hurt or help your performance. The FRA only helps if you have a non-WS6 or if you are going to use an aftermarket kit like FTRA or SSRA.
Re: free ram air mod hypothesis. Its all about the air temperature (and density)! You aren't doing squat to air pressure and very little to velocity or flow by taking out the baffles and sealing the hood. However, you are grabbing the coolest air possible - out in front of the car! That makes a difference!
I still say that the FRA and hood ram air combined makes the inlet charge warmer than the nostrils alone.
I still say that the FRA and hood ram air combined makes the inlet charge warmer than the nostrils alone.
