would a ram air system work????

[madcheba]

i have an k&n filter in my 97 gst. but i have this mechanic who lives across the street from me who is in to all types of cars and told me i should get some duct pipes, mount them either in the front bumper or under it, and create a ram air kit sort of thing ( he says he would know how to put it but i have no clue). will i notice any difference in performance of really no change. thanks

 

[CBgst]

You have ram air it's called a turbo. Don't waste your time.

 

[toshi128]

it should work only with the piping but the best way is to make a box for it as well. check it on vfaq.com and they should have some walk through about it.

basically...you make a box out of metal or plastic piece and it will cover your air filter. then the cold air is sent through the pipe from the side. i am not sure how much power you can get out of this. but people tried this before and they said it works.

good luck

 

[nine5raptor]

your not really making a ram air, but rather a cai

 

[LILGSX96]

sorry I doubbled posted

 

[LILGSX96]

Ok here is the skinny, Ram air... or lower inlet temps to the turbo. The lower the air temp is going in the turbo the cooler the out put is of the turbo. Cooler air equals to a dencer charge and less work for the intercooler. So if you can bring some outside air into the engine bay area it is a good idea.
Check this out, on my haltech I had a air inlet temp of 82 degrees going into the throttle body. I was just doing normal driving. then I started coasting (off throttle) the Intake temp rose upto 95 degrees in about 30 seconds. So the temp under the hood of the car is hot you need some type of ducting going in to keep the under hood temps down. Unless you run a cold air intake for the turbo.

Luke Reeder

 

[Enigma_Man]

Well, it would work, but I don't think in the way that you might be hoping.

I don't think that ram air would decrease spool time noticeably at all (but it can't hurt), but one thing that our turbo cars love is cold air

And if you rig up a way to get air into the turbo from outside the engine bay, then you're going to have a lower intake air temperature. Hot air can cause detonation, so if the air coming in is too hot, detonation will happen, timing will be pulled, and you'll lose power.

But if you have cold intake air, the timing won't be pulled, and you will keep power. You could even _increase_ power by increasing the boost now that the car is more resistant to detonation.

There ya go, ram air is good because it's cold

-Jesse

 

[King Salami]

Ram air has no effect on spoolup... BUT it will make a bit more power due to cooler/denser air coming into your induction system. My throttle response improved significantly (especially on hot days) when I installed my cool air box & duct.
http://web3.foxinternet.net/thegrbas/index.htm

 

[LaserRST]

Ram air would actually be a good idea for turbo, you will have to find a way to out flow the draw of the turbo for it to be effective. This all comes with the compressor maps. On the right of compressor map is the compression ratio. If you reduce the amount of negative pressure on the intake side of the compressor wheel and increase your boost pressures, depending on where your peak efficiency is, this wll put the turbo in its sweet spot. For instance....

Theoretically... say a ram air will reduce the pressure on the inducer side to ambient air pressure...

PsiA=14.7 and the compressors peak efficient CR is 2.83
(PsiAxCR)-14.7=peak boost at peak efficiency
(14.7x2.81)-14.7=PsiG <---Guage pressure
This means this turbo will push 26psi at its peak efficiency.... now this isnt taking into consideration as to how well this turbo will flow, the bottom of the Compressor map in LBS/m. Find where this turbo flows at its peak point and you have found the turbos sweet spot.

This explains why Larger displacement turbos have larger intakes while its inducer still doesnt go past 3.0 in.

 

[-=TWITCH=-]

Originally posted by CBgst
You have ram air it's called a turbo. Don't waste your time.

that is wHat I was thinking