RAM AIR Does 'RAM'...Proof inside...
I know the feeling is more air is better but you are forgetting that pressurized air takes the path of least resistance. Since the FTRA or SSRA uses a superior bottom breathing design which normally goes into a sealed airbox, any openings in that air box (including leaving the front seal off to make the hood functional) will mean that air will escape through that hole and negate any pressure increases.
Using your method, you are only benefitting from the cold air and not receiving any benefits from any pressure increases. With that being said, go seal it up and enjoy some more power!
Using your method, you are only benefitting from the cold air and not receiving any benefits from any pressure increases. With that being said, go seal it up and enjoy some more power!
seal that bitch up
Teching In
Joined: Dec 2007
Posts: 31
Likes: 0
From: Highland Park, IL
If you guys are bored, check out this webpage:http://www.karlsnet.com/mopar/ramair.shtml
It's a pretty ghetto ram air construction, but I like the fact that he scientifically tests every variable....
It's a pretty ghetto ram air construction, but I like the fact that he scientifically tests every variable....
ive been waitin for you to post this......this will give me somthin to work on while the car is apart.....i had already sealed off the airbox to make the fra more functional...looks like i need to make a trip to lowes or home depot...interesting post...you done alot of homework
ive been waitin for you to post this......this will give me somthin to work on while the car is apart.....i had already sealed off the airbox to make the fra more functional...looks like i need to make a trip to lowes or home depot...interesting post...you done alot of homework
didn't measure manifold pressure...just measured lid pressure right in front of the manifold...i imagine it was close to the same results... 
Last edited by chrs1313; Apr 4, 2008 at 06:25 AM.
Buddy at work just added it to his Formula and he says the butt dyno proved a lot more acceleration from 50-90, he has a Gtech too and that says the same. The car Im looking at already has it so I wont be able to test it for myself. But its good to see some actual tests.
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looks like ill be putting my stock base lower air box that has the FTRA cuts in it on. I wish the FTRA opening was a little bigger though. Any reason the size it is was chosen, maybe clearance issues. Its been a while since ive looked at it.
i just ordered the jaam from fast toys so as soon as i get it i will let you know some results! it was a toss up btwn the ftra and the jaam but i went with the jaam becasue of the hood, after the guys at fast toys gaveme some great feedback......
But it probably went up some amount.
I also think it is a slight leap to claim that the 2.7kPa extra you measured in the box means that you have 11.5 extra RWHP based on pressure alone and 20RWHP via pressure and temperature changes. Mostly because you don't know if that extra pressure actually makes it into the motor.
Last edited by HAZ-Matt; Apr 4, 2008 at 10:13 AM.
Ftra The FTRA's size is limited by the space left in front of the AC condenser. It was made as big as possible to fit
The FTRA has routinely been worth 1.0 - 1.5 MPH in the quarter mile on relatively stock cars. That easily should be 10-15 RWHP in a 3400-3600 lb car. We've seen high results on more modified vehicles.
The FTRA has routinely been worth 1.0 - 1.5 MPH in the quarter mile on relatively stock cars. That easily should be 10-15 RWHP in a 3400-3600 lb car. We've seen high results on more modified vehicles.
I would not assume that. It is not clear to me that in increased airbox pressure necessarily would mean the manifold pressure change is the same or changes at all depending on the stuff in between the lid and the manifold.
But it probably went up some amount.
I also think it is a slight leap to claim that the 2.7kPa extra you measured in the box means that you have 11.5 extra RWHP based on pressure alone and 20RWHP via pressure and temperature changes. Mostly because you don't know if that extra pressure actually makes it into the motor.
But it probably went up some amount.
I also think it is a slight leap to claim that the 2.7kPa extra you measured in the box means that you have 11.5 extra RWHP based on pressure alone and 20RWHP via pressure and temperature changes. Mostly because you don't know if that extra pressure actually makes it into the motor.
We find a lot of people doubt that a FTRA style set up will work even though countless #'s of people have installed it and seen the benefits. We even include a block off plate with the FTRA that easily allows you to test the benefits at the track.
It's easy to bench race and guess which mods will work and why but the real results are at the track. There are thousands of happy FTRA customers out there
It's easy to bench race and guess which mods will work and why but the real results are at the track. There are thousands of happy FTRA customers out there
Tech Resident
Joined: Jan 2006
Posts: 5,117
Likes: 3
From: Philly
We find a lot of people doubt that a FTRA style set up will work even though countless #'s of people have installed it and seen the benefits. We even include a block off plate with the FTRA that easily allows you to test the benefits at the track.
It's easy to bench race and guess which mods will work and why but the real results are at the track. There are thousands of happy FTRA customers out there
It's easy to bench race and guess which mods will work and why but the real results are at the track. There are thousands of happy FTRA customers out there
I guess I can try that during my upcoming rental and will do it all three ways
Hood and FTRA
Hood
FTRA
I am a newb so I will use the first 5 or so runs getting use to staging and launching. I will then due a few runs with each configuration. They say you can get about 15 to 20 runs so I should have plenty of time. Now I just need to go find the block off plate for the FTRA.
Hood and FTRA
Hood
FTRA
I am a newb so I will use the first 5 or so runs getting use to staging and launching. I will then due a few runs with each configuration. They say you can get about 15 to 20 runs so I should have plenty of time. Now I just need to go find the block off plate for the FTRA.
